| 905 |
Sort Array By Parity |
72.60% |
Easy |
| 904 |
Fruit Into Baskets |
41.70% |
Medium |
| 903 |
Valid Permutations for DI Sequence |
45.10% |
Hard |
| 902 |
Numbers At Most N Given Digit Set |
28.80% |
Hard |
| 901 |
Online Stock Span |
49.90% |
Medium |
| 900 |
RLE Iterator |
50.50% |
Medium |
| 899 |
Orderly Queue |
47.70% |
Hard |
| 898 |
Bitwise ORs of Subarrays |
34.70% |
Medium |
| 897 |
Increasing Order Search Tree |
65.20% |
Easy |
| 896 |
Monotonic Array |
55.40% |
Easy |
| 895 |
Maximum Frequency Stack |
56.70% |
Hard |
| 894 |
All Possible Full Binary Trees |
71.30% |
Medium |
| 893 |
Groups of Special-Equivalent Strings |
63.00% |
Easy |
| 892 |
Surface Area of 3D Shapes |
56.10% |
Easy |
| 891 |
Sum of Subsequence Widths |
29.20% |
Hard |
| 890 |
Find and Replace Pattern |
71.30% |
Medium |
| 889 |
Construct Binary Tree from Preorder and Postorder Traversal |
60.70% |
Medium |
| 888 |
Fair Candy Swap |
56.90% |
Easy |
| 887 |
Super Egg Drop |
24.90% |
Hard |
| 886 |
Possible Bipartition |
40.90% |
Medium |
| 885 |
Spiral Matrix III |
64.80% |
Medium |
| 884 |
Uncommon Words from Two Sentences |
60.90% |
Easy |
| 883 |
Projection Area of 3D Shapes |
65.90% |
Easy |
| 882 |
Reachable Nodes In Subdivided Graph |
38.20% |
Hard |
| 881 |
Boats to Save People |
44.10% |
Medium |
| 880 |
Decoded String at Index |
23.00% |
Medium |
| 879 |
Profitable Schemes |
36.20% |
Hard |
| 878 |
Nth Magical Number |
25.40% |
Hard |
| 877 |
Stone Game |
61.10% |
Medium |
| 876 |
Middle of the Linked List |
63.80% |
Easy |
| 875 |
Koko Eating Bananas |
45.90% |
Medium |
| 874 |
Walking Robot Simulation |
31.70% |
Easy |
| 873 |
Length of Longest Fibonacci Subsequence |
46.00% |
Medium |
| 872 |
Leaf-Similar Trees |
63.10% |
Easy |
| 871 |
Minimum Number of Refueling Stops |
28.70% |
Hard |
| 870 |
Advantage Shuffle |
42.20% |
Medium |
| 869 |
Reordered Power of 2 |
50.60% |
Medium |
| 868 |
Binary Gap |
59.30% |
Easy |
| 867 |
Transpose Matrix |
63.90% |
Easy |
| 866 |
Prime Palindrome |
20.00% |
Medium |
| 865 |
Smallest Subtree with all the Deepest Nodes |
55.40% |
Medium |
| 864 |
Shortest Path to Get All Keys |
35.70% |
Hard |
| 863 |
All Nodes Distance K in Binary Tree |
46.80% |
Medium |
| 862 |
Shortest Subarray with Sum at Least K |
22.00% |
Hard |
| 861 |
Score After Flipping Matrix |
69.30% |
Medium |
| 860 |
Lemonade Change |
50.20% |
Easy |
| 859 |
Buddy Strings |
27.60% |
Easy |
| 858 |
Mirror Reflection |
52.00% |
Medium |
| 857 |
Minimum Cost to Hire K Workers |
47.30% |
Hard |
| 856 |
Score of Parentheses |
55.90% |
Medium |
| 855 |
Exam Room |
38.10% |
Medium |
| 854 |
K-Similar Strings |
33.20% |
Hard |
| 853 |
Car Fleet |
39.30% |
Medium |
| 852 |
Peak Index in a Mountain Array |
68.50% |
Easy |
| 851 |
Loud and Rich |
47.40% |
Medium |
| 850 |
Rectangle Area II |
44.00% |
Hard |
| 849 |
Maximize Distance to Closest Person |
40.40% |
Easy |
| 848 |
Shifting Letters |
39.90% |
Medium |
| 847 |
Shortest Path Visiting All Nodes |
45.90% |
Hard |
| 846 |
Hand of Straights |
48.60% |
Medium |
| 845 |
Longest Mountain in Array |
34.00% |
Medium |
| 844 |
Backspace String Compare |
45.50% |
Easy |
| 843 |
Guess the Word |
42.60% |
Hard |
| 842 |
Split Array into Fibonacci Sequence |
34.60% |
Medium |
| 841 |
Keys and Rooms |
59.70% |
Medium |
| 840 |
Magic Squares In Grid |
35.10% |
Easy |
| 839 |
Similar String Groups |
33.50% |
Hard |
| 838 |
Push Dominoes |
42.80% |
Medium |
| 837 |
New 21 Game |
29.50% |
Medium |
| 836 |
Rectangle Overlap |
45.50% |
Easy |
| 835 |
Image Overlap |
50.30% |
Medium |
| 834 |
Sum of Distances in Tree |
38.10% |
Hard |
| 833 |
Find And Replace in String |
44.50% |
Medium |
| 832 |
Flipping an Image |
71.30% |
Easy |
| 831 |
Masking Personal Information |
41.50% |
Medium |
| 830 |
Positions of Large Groups |
47.40% |
Easy |
| 829 |
Consecutive Numbers Sum |
32.10% |
Hard |
| 828 |
Unique Letter String |
38.10% |
Hard |
| 827 |
Making A Large Island |
42.10% |
Hard |
| 826 |
Most Profit Assigning Work |
34.70% |
Medium |
| 825 |
Friends Of Appropriate Ages |
35.00% |
Medium |
| 824 |
Goat Latin |
56.70% |
Easy |
| 823 |
Binary Trees With Factors |
31.50% |
Medium |
| 822 |
Card Flipping Game |
39.70% |
Medium |
| 821 |
Shortest Distance to a Character |
62.60% |
Easy |
| 820 |
Short Encoding of Words |
46.00% |
Medium |
| 819 |
Most Common Word |
41.50% |
Easy |
| 818 |
Race Car |
34.00% |
Hard |
| 817 |
Linked List Components |
51.90% |
Medium |
| 816 |
Ambiguous Coordinates |
42.40% |
Medium |
| 815 |
Bus Routes |
36.10% |
Hard |
| 814 |
Binary Tree Pruning |
68.30% |
Medium |
| 813 |
Largest Sum of Averages |
42.40% |
Medium |
| 812 |
Largest Triangle Area |
53.80% |
Easy |
| 811 |
Subdomain Visit Count |
61.50% |
Easy |
| 810 |
Chalkboard XOR Game |
41.90% |
Hard |
| 809 |
Expressive Words |
39.50% |
Medium |
| 808 |
Soup Servings |
33.60% |
Medium |
| 807 |
Max Increase to Keep City Skyline |
79.60% |
Medium |
| 806 |
Number of Lines To Write String |
62.10% |
Easy |
| 805 |
Split Array With Same Average |
21.00% |
Hard |
| 804 |
Unique Morse Code Words |
71.30% |
Easy |
| 803 |
Bricks Falling When Hit |
22.90% |
Hard |
| 802 |
Find Eventual Safe States |
39.20% |
Medium |
| 801 |
Minimum Swaps To Make Sequences Increasing |
31.00% |
Medium |
| 800 |
Similar RGB Color $ |
54.50% |
Easy |
| 799 |
Champagne Tower |
29.90% |
Medium |
| 798 |
Smallest Rotation with Highest Score |
34.30% |
Hard |
| 797 |
All Paths From Source to Target |
67.40% |
Medium |
| 796 |
Rotate String |
49.60% |
Easy |
| 795 |
Number of Subarrays with Bounded Maximum |
41.60% |
Medium |
| 794 |
Valid Tic-Tac-Toe State |
27.80% |
Medium |
| 793 |
Preimage Size of Factorial Zeroes Function |
40.80% |
Hard |
| 792 |
Number of Matching Subsequences |
37.30% |
Medium |
| 791 |
Custom Sort String |
59.40% |
Medium |
| 790 |
Domino and Tromino Tiling |
32.80% |
Medium |
| 789 |
Escape The Ghosts |
51.00% |
Medium |
| 788 |
Rotated Digits |
51.00% |
Easy |
| 787 |
Cheapest Flights Within K Stops |
29.90% |
Medium |
| 786 |
K-th Smallest Prime Fraction |
32.50% |
Hard |
| 785 |
Is Graph Bipartite |
38.50% |
Medium |
| 784 |
Letter Case Permutation |
53.00% |
Easy |
| 783 |
Minimum Distance Between BST Nodes |
47.80% |
Easy |
| 782 |
Transform to Chessboard |
37.50% |
Hard |
| 781 |
Rabbits in Forest |
49.80% |
Medium |
| 780 |
Reaching Points |
23.90% |
Hard |
| 779 |
K-th Symbol in Grammar |
37.30% |
Medium |
| 778 |
Swim in Rising Water |
44.60% |
Hard |
| 777 |
Swap Adjacent in LR String |
28.90% |
Medium |
| 776 |
Split BST $ |
49.90% |
Medium |
| 775 |
Global and Local Inversions |
33.60% |
Medium |
| 774 |
Minimize Max Distance to Gas Station $ |
32.80% |
Hard |
| 773 |
Sliding Puzzle |
46.50% |
Hard |
| 772 |
Basic Calculator III $ |
40.10% |
Hard |
| 771 |
Jewels and Stones |
81.90% |
Easy |
| 770 |
Basic Calculator IV |
42.10% |
Hard |
| 769 |
Max Chunks To Make Sorted |
48.00% |
Medium |
| 768 |
Max Chunks To Make Sorted II |
43.20% |
Hard |
| 767 |
Reorganize String |
36.50% |
Medium |
| 766 |
Toeplitz Matrix |
57.90% |
Easy |
| 765 |
Couples Holding Hands |
48.50% |
Hard |
| 764 |
Largest Plus Sign |
39.20% |
Medium |
| 763 |
Partition Labels |
64.10% |
Medium |
| 762 |
Prime Number of Set Bits in Binary Representation |
55.00% |
Easy |
| 761 |
Special Binary String |
41.00% |
Hard |
| 760 |
Find Anagram Mappings $ |
75.60% |
Easy |
| 759 |
Employee Free Time $ |
51.90% |
Hard |
| 758 |
Bold Words in String $ |
37.90% |
Easy |
| 757 |
Set Intersection Size At Least Two |
34.60% |
Hard |
| 756 |
Pyramid Transition Matrix |
45.50% |
Medium |
| 755 |
Pour Water $ |
34.00% |
Medium |
| 754 |
Reach a Number |
26.10% |
Medium |
| 753 |
Cracking the Safe |
39.70% |
Hard |
| 752 |
Open the Lock |
38.20% |
Medium |
| 751 |
IP to CIDR $ |
54.80% |
Easy |
| 750 |
Number Of Corner Rectangles $ |
51.00% |
Medium |
| 749 |
Contain Virus |
39.60% |
Hard |
| 748 |
Shortest Completing Word |
53.50% |
Medium |
| 747 |
Largest Number At Least Twice of Others |
42.60% |
Easy |
| 746 |
Min Cost Climbing Stairs |
43.60% |
Easy |
| 745 |
Prefix and Suffix Search |
24.50% |
Hard |
| 744 |
Find Smallest Letter Greater Than Target |
45.30% |
Easy |
| 743 |
Network Delay Time |
34.30% |
Medium |
| 742 |
Closest Leaf in a Binary Tree $ |
33.20% |
Medium |
| 741 |
Cherry Pickup |
22.50% |
Hard |
| 740 |
Delete and Earn |
42.60% |
Medium |
| 739 |
Daily Temperatures |
53.50% |
Medium |
| 738 |
Monotone Increasing Digits |
41.80% |
Medium |
| 737 |
Sentence Similarity II $ |
41.20% |
Medium |
| 736 |
Parse Lisp Expression |
42.00% |
Hard |
| 735 |
Asteroid Collision |
37.60% |
Medium |
| 734 |
Sentence Similarity $ |
38.60% |
Easy |
| 733 |
Flood Fill |
49.30% |
Easy |
| 732 |
My Calendar III |
51.30% |
Hard |
| 731 |
My Calendar II |
35.00% |
Medium |
| 730 |
Count Different Palindromic Subsequences |
32.40% |
Hard |
| 729 |
My Calendar I |
40.10% |
Medium |
| 728 |
Self Dividing Numbers |
68.50% |
Easy |
| 727 |
Minimum Window Subsequence |
30.10% |
Hard |
| 726 |
Number of Atoms |
45.00% |
Hard |
| 725 |
Split Linked List in Parts |
50.00% |
Medium |
| 724 |
Find Pivot Index |
41.00% |
Easy |
| 723 |
Candy Crush $ |
56.10% |
Medium |
| 722 |
Remove Comments |
26.30% |
Medium |
| 721 |
Accounts Merge |
29.60% |
Medium |
| 720 |
Longest Word in Dictionary |
40.60% |
Easy |
| 719 |
Find K-th Smallest Pair Distance |
26.10% |
Hard |
| 718 |
Maximum Length of Repeated Subarray |
39.90% |
Medium |
| 717 |
1-bit and 2-bit Characters |
50.90% |
Easy |
| 716 |
Max Stack $ |
35.50% |
Hard |
| 715 |
Range Module |
31.00% |
Hard |
| 714 |
Best Time to Buy and Sell Stock with Transaction Fee |
41.60% |
Medium |
| 713 |
Subarray Product Less Than K |
32.90% |
Medium |
| 712 |
Minimum ASCII Delete Sum for Two Strings |
50.90% |
Medium |
| 711 |
Number of Distinct Islands II $ |
39.40% |
Hard |
| 710 |
Random Pick with Blacklist |
29.80% |
Hard |
| 709 |
To Lower Case |
74.50% |
Easy |
| 708 |
Insert into a Cyclic Sorted List $ |
25.50% |
Medium |
| 707 |
Design Linked List |
19.10% |
Easy |
| 706 |
Design HashMap |
49.10% |
Easy |
| 705 |
Design HashSet |
43.60% |
Easy |
| 704 |
Binary Search |
40.10% |
Easy |
| 703 |
Kth Largest Element in a Stream |
39.60% |
Easy |
| 702 |
Search in a Sorted Array of Unknown Size |
43.00% |
Medium |
| 701 |
Insert into a Binary Search Tree |
67.90% |
Medium |
| 700 |
Search in a Binary Search Tree |
62.70% |
Easy |
| 699 |
Falling Squares |
36.80% |
Hard |
| 698 |
Partition to K Equal Sum Subsets |
35.60% |
Medium |
| 697 |
Degree of an Array |
47.90% |
Easy |
| 696 |
Count Binary Substrings |
51.90% |
Easy |
| 695 |
Max Area of Island |
53.30% |
Easy |
| 694 |
Number of Distinct Islands $ |
43.90% |
Medium |
| 693 |
Binary Number with Alternating Bits |
54.20% |
Easy |
| 692 |
Top K Frequent Words |
41.70% |
Medium |
| 691 |
Stickers to Spell Word |
32.30% |
Hard |
| 690 |
Employee Importance |
53.60% |
Easy |
| 689 |
Maximum Sum of 3 Non-Overlapping Subarrays |
41.70% |
Hard |
| 688 |
Knight Probability in Chessboard |
38.90% |
Medium |
| 687 |
Longest Univalue Path |
32.90% |
Easy |
| 686 |
Repeated String Match |
31.70% |
Easy |
| 685 |
Redundant Connection II |
28.40% |
Hard |
| 684 |
Redundant Connection |
37.40% |
Medium |
| 683 |
K Empty Slots |
37.00% |
Hard |
| 682 |
Baseball Game |
58.60% |
Easy |
| 681 |
Next Closest Time $ |
43.00% |
Medium |
| 680 |
Valid Palindrome II |
31.10% |
Easy |
| 679 |
24 Game |
38.30% |
Hard |
| 678 |
Valid Parenthesis String |
28.30% |
Medium |
| 677 |
Map Sum Pairs |
53.80% |
Medium |
| 676 |
Implement Magic Dictionary |
50.70% |
Medium |
| 675 |
Cut Off Trees for Golf Event |
27.20% |
Hard |
| 674 |
Longest Continuous Increasing Subsequence |
43.20% |
Easy |
| 673 |
Number of Longest Increasing Subsequence |
30.80% |
Medium |
| 672 |
Bulb Switcher II |
47.60% |
Medium |
| 671 |
Second Minimum Node In a Binary Tree |
42.30% |
Easy |
| 670 |
Maximum Swap |
38.40% |
Medium |
| 669 |
Trim a Binary Search Tree |
58.70% |
Easy |
| 668 |
Kth Smallest Number in Multiplication Table |
36.30% |
Hard |
| 667 |
Beautiful Arrangement II |
51.50% |
Medium |
| 666 |
Path Sum IV $ |
48.90% |
Medium |
| 665 |
Non-decreasing Array |
21.20% |
Easy |
| 664 |
Strange Printer |
31.10% |
Hard |
| 663 |
Equal Tree Partition $ |
36.70% |
Medium |
| 662 |
Maximum Width of Binary Tree |
37.00% |
Medium |
| 661 |
Image Smoother |
46.60% |
Easy |
| 660 |
Remove 9 $ |
46.10% |
Hard |
| 659 |
Split Array into Consecutive Subsequences |
39.40% |
Medium |
| 658 |
Find K Closest Elements |
36.30% |
Medium |
| 657 |
Judge Route Circle |
69.30% |
Easy |
| 656 |
Coin Path $ |
24.60% |
Hard |
| 655 |
Print Binary Tree |
50.80% |
Medium |
| 654 |
Maximum Binary Tree |
70.80% |
Medium |
| 653 |
Two Sum IV - Input is a BST |
50.60% |
Easy |
| 652 |
Find Duplicate Subtrees |
33.20% |
Medium |
| 651 |
4 Keys Keyboard $ |
46.70% |
Medium |
| 650 |
2 Keys Keyboard |
42.70% |
Medium |
| 649 |
Dota2 Senate |
35.60% |
Medium |
| 648 |
Replace Words |
48.40% |
Medium |
| 647 |
Palindromic Substrings |
55.70% |
Medium |
| 646 |
Maximum Length of Pair Chain |
47.40% |
Medium |
| 645 |
Set Mismatch |
40.40% |
Easy |
| 644 |
Maximum Average Subarray II $ |
20.30% |
Hard |
| 643 |
Maximum Average Subarray I |
38.40% |
Easy |
| 642 |
Design Search Autocomplete System $ |
29.40% |
Hard |
| 641 |
Design Circular Deque |
48.00% |
Medium |
| 640 |
Solve the Equation |
39.00% |
Medium |
| 639 |
Decode Ways II |
22.80% |
Hard |
| 638 |
Shopping Offers |
41.50% |
Medium |
| 637 |
Average of Levels in Binary Tree |
55.60% |
Easy |
| 636 |
Exclusive Time of Functions |
40.30% |
Medium |
| 635 |
Design Log Storage System $ |
47.70% |
Medium |
| 634 |
Find the Derangement of An Array $ |
32.70% |
Medium |
| 633 |
Sum of Square Numbers |
31.60% |
Easy |
| 632 |
Smallest Range |
42.80% |
Hard |
| 631 |
Design Excel Sum Formula $ |
25.60% |
Hard |
| 630 |
Course Schedule III |
20.50% |
Medium |
| 629 |
K Inverse Pairs Array |
23.90% |
Hard |
| 628 |
Maximum Product of Three Numbers |
45.40% |
Easy |
| 627 |
Swap Salary |
67.40% |
Easy |
| 626 |
Exchange Seats |
49.60% |
Medium |
| 625 |
Minimum Factorization |
29.50% |
Medium |
| 624 |
Maximum Distance in Arrays $ |
32.70% |
Easy |
| 623 |
Add One Row to Tree |
48.70% |
Medium |
| 622 |
Design Circular Queue |
36.60% |
Medium |
| 621 |
Task Scheduler |
41.40% |
Medium |
| 620 |
Not Boring Movies |
59.80% |
Easy |
| 619 |
Biggest Single Number $ |
36.60% |
Easy |
| 618 |
Students Report By Geography $ |
40.40% |
Hard |
| 617 |
Merge Two Binary Trees |
69.60% |
Easy |
| 616 |
Add Bold Tag in String $ |
37.30% |
Medium |
| 615 |
Average Salary: Departments VS Company $ |
33.00% |
Hard |
| 614 |
Second Degree Follower $ |
22.70% |
Medium |
| 613 |
Shortest Distance in a Line $ |
70.60% |
Easy |
| 612 |
Shortest Distance in a Plane $ |
51.00% |
Medium |
| 611 |
Valid Triangle Number |
38.90% |
Medium |
| 610 |
Triangle Judgement $ |
59.10% |
Easy |
| 609 |
Find Duplicate File in System |
52.50% |
Medium |
| 608 |
Tree Node $ |
54.60% |
Medium |
| 607 |
Sales Person $ |
51.10% |
Easy |
| 606 |
Construct String from Binary Tree |
51.80% |
Easy |
| 605 |
Can Place Flowers |
30.00% |
Easy |
| 604 |
Design Compressed String Iterator $ |
31.60% |
Easy |
| 603 |
Consecutive Available Seats $ |
54.50% |
Easy |
| 602 |
Friend Requests II: Who Has the Most Friends $ |
42.50% |
Medium |
| 601 |
Human Traffic of Stadium |
33.80% |
Hard |
| 600 |
Non-negative Integers without Consecutive Ones |
27.40% |
Hard |
| 599 |
Minimum Index Sum of Two Lists |
48.00% |
Easy |
| 598 |
Range Addition II |
48.30% |
Easy |
| 597 |
Friend Requests I: Overall Acceptance Rate $ |
38.40% |
Easy |
| 596 |
Classes More Than 5 Students |
33.40% |
Easy |
| 595 |
Big Countries |
72.00% |
Easy |
| 594 |
Longest Harmonious Subsequence |
40.00% |
Easy |
| 593 |
Valid Square |
39.20% |
Medium |
| 592 |
Fraction Addition and Subtraction |
47.00% |
Medium |
| 591 |
Tag Validator |
26.40% |
Hard |
| 590 |
N-ary Tree Postorder Traversal |
63.00% |
Easy |
| 589 |
N-ary Tree Preorder Traversal |
63.10% |
Easy |
| 588 |
Design In-Memory File System $ |
32.40% |
Hard |
| 587 |
Erect the Fence |
29.90% |
Hard |
| 586 |
Customer Placing the Largest Number of Orders $ |
62.50% |
Easy |
| 585 |
Investments in 2016 $ |
44.60% |
Medium |
| 584 |
Find Customer Referee $ |
63.60% |
Easy |
| 583 |
Delete Operation for Two Strings |
44.00% |
Medium |
| 582 |
Kill Process $ |
47.70% |
Medium |
| 581 |
Shortest Unsorted Continuous Subarray |
30.10% |
Easy |
| 580 |
Count Student Number in Departments $ |
40.00% |
Medium |
| 579 |
Find Cumulative Salary of an Employee $ |
30.90% |
Hard |
| 578 |
Get Highest Answer Rate Question $ |
33.10% |
Medium |
| 577 |
Employee Bonus $ |
53.80% |
Easy |
| 576 |
Out of Boundary Paths |
33.10% |
Medium |
| 575 |
Distribute Candies |
59.50% |
Easy |
| 574 |
Winning Candidate $ |
34.50% |
Medium |
| 573 |
Squirrel Simulation $ |
51.00% |
Medium |
| 572 |
Subtree of Another Tree |
41.00% |
Easy |
| 571 |
Find Median Given Frequency of Numbers $ |
44.90% |
Hard |
| 570 |
Managers with at Least 5 Direct Reports $ |
59.00% |
Medium |
| 569 |
Median Employee Salary $ |
41.60% |
Hard |
| 568 |
Maximum Vacation Days $ |
39.90% |
Hard |
| 567 |
Permutation in String |
36.30% |
Medium |
| 566 |
Reshape the Matrix |
59.80% |
Easy |
| 565 |
Array Nesting |
50.00% |
Medium |
| 564 |
Find the Closest Palindrome |
16.60% |
Hard |
| 563 |
Binary Tree Tilt |
47.00% |
Easy |
| 562 |
Longest Line of Consecutive One in Matrix $ |
38.80% |
Medium |
| 561 |
Array Partition I |
69.80% |
Easy |
| 560 |
Subarray Sum Equals K |
41.80% |
Medium |
| 559 |
Maximum Depth of N-ary Tree |
62.10% |
Easy |
| 558 |
Quad Tree Intersection |
36.40% |
Easy |
| 557 |
Reverse Words in a String III |
61.20% |
Easy |
| 556 |
Next Greater Element III |
27.70% |
Medium |
| 555 |
Split Concatenated Strings $ |
30.00% |
Medium |
| 554 |
Brick Wall |
42.70% |
Medium |
| 553 |
Optimal Division |
55.20% |
Medium |
| 552 |
Student Attendance Record II |
28.50% |
Hard |
| 551 |
Student Attendance Record I |
43.90% |
Easy |
| 549 |
Binary Tree Longest Consecutive Sequence II $ |
38.10% |
Medium |
| 548 |
Split Array with Equal Sum $ |
30.80% |
Medium |
| 547 |
Friend Circles |
49.00% |
Medium |
| 546 |
Remove Boxes |
29.60% |
Hard |
| 545 |
Boundary of Binary Tree $ |
29.10% |
Medium |
| 544 |
Output Contest Matches $ |
73.20% |
Medium |
| 543 |
Diameter of Binary Tree |
42.70% |
Easy |
| 542 |
01 Matrix |
32.50% |
Medium |
| 541 |
Reverse String II |
44.40% |
Easy |
| 540 |
Single Element in a Sorted Array |
55.90% |
Medium |
| 539 |
Minimum Time Difference |
44.70% |
Medium |
| 538 |
Convert BST to Greater Tree |
52.70% |
Medium |
| 537 |
Complex Number Multiplication |
65.90% |
Medium |
| 536 |
Construct Binary Tree from String $ |
36.30% |
Medium |
| 535 |
Encode and Decode TinyURL |
76.10% |
Medium |
| 534 |
Design TinyURL |
N/A |
Medium |
| 533 |
Lonely Pixel II $ |
38.90% |
Medium |
| 532 |
K-diff Pairs in an Array |
27.20% |
Easy |
| 531 |
Lonely Pixel I $ |
50.20% |
Medium |
| 530 |
Minimum Absolute Difference in BST |
48.00% |
Easy |
| 529 |
Minesweeper |
52.00% |
Medium |
| 528 |
Random Pick with Weight |
41.80% |
Medium |
| 527 |
Word Abbreviation $ |
33.90% |
Hard |
| 526 |
Beautiful Arrangement |
53.50% |
Medium |
| 525 |
Contiguous Array |
34.40% |
Medium |
| 524 |
Longest Word in Dictionary through Deleting |
40.20% |
Medium |
| 523 |
Continuous Subarray Sum |
21.3 |
Medium |
| 522 |
Longest Uncommon Subsequence II |
28.10% |
Medium |
| 521 |
Longest Uncommon Subsequence I |
50.70% |
Easy |
| 520 |
Detect Capital |
54.20% |
Easy |
| 519 |
Random Flip Matrix |
32.20% |
Medium |
| 518 |
Coin Change 2 |
33.20% |
Medium |
| 517 |
Super Washing Machines |
34.60% |
Hard |
| 516 |
Longest Palindromic Subsequence |
42.00% |
Medium |
| 515 |
Find Largest Value in Each Tree Row |
52.70% |
Medium |
| 514 |
Freedom Trail |
27.20% |
Hard |
| 513 |
Find Bottom Left Tree Value |
55.60% |
Medium |
| 510 |
Inorder Successor in BST II $ |
56.20% |
Medium |
| 509 |
Fibonacci Number |
66.40% |
Easy |
| 508 |
Most Frequent Subtree Sum |
52.00% |
Medium |
| 507 |
Perfect Number |
32.70% |
Easy |
| 506 |
Relative Ranks |
48.50% |
Easy |
| 505 |
The Maze II |
34.80% |
Medium |
| 504 |
Base 7 |
46.40% |
Easy |
| 503 |
Next Greater Element II |
46.20% |
Medium |
| 502 |
IPO |
32.40% |
Hard |
| 501 |
Find Mode in Binary Search Tree |
39.40% |
Easy |
| 500 |
Keyboard Row |
60.20% |
Easy |
| 499 |
The Maze III |
32.00% |
Hard |
| 498 |
Diagonal Traverse |
46.20% |
Medium |
| 497 |
Random Point in Non-overlapping Rectangles |
33.20% |
Medium |
| 496 |
Next Greater Element I |
58.80% |
Easy |
| 495 |
Teemo Attacking |
51.90% |
Medium |
| 494 |
Target Sum |
44.40% |
Medium |
| 493 |
Reverse Pairs |
17.10% |
Hard |
| 492 |
Construct the Rectangle |
49.70% |
Easy |
| 491 |
Increasing Subsequences |
39.30% |
Medium |
| 490 |
The Maze |
42.80% |
Medium |
| 489 |
Robot Room Cleaner |
57.10% |
Hard |
| 488 |
Zuma Game |
38.00% |
Hard |
| 487 |
Max Consecutive Ones II $ |
42.70% |
Medium |
| 486 |
Predict the Winner |
43.60% |
Medium |
| 485 |
Max Consecutive Ones |
55.30% |
Easy |
| 484 |
Find Permutation $ |
50.50% |
Medium |
| 483 |
Smallest Good Base |
30.60% |
Hard |
| 482 |
License Key Formatting |
41.20% |
Medium |
| 481 |
Magical String |
46.20% |
Medium |
| 480 |
Sliding Window Median |
31.00% |
Hard |
| 479 |
Largest Palindrome Product |
23.90% |
Easy |
| 478 |
Generate Random Point in a Circle |
33.80% |
Medium |
| 477 |
Total Hamming Distance |
44.10% |
Medium |
| 476 |
Number Complement |
61.20% |
Easy |
| 475 |
Heaters |
30.20% |
Easy |
| 474 |
Ones and Zeroes |
34.90% |
Medium |
| 473 |
Matchsticks to Square |
31.80% |
Medium |
| 472 |
Concatenated Words |
29.20% |
Hard |
| 471 |
Encode String with Shortest Length $ |
43.50% |
Hard |
| 470 |
Implement Rand10() Using Rand7() |
43.00% |
Medium |
| 469 |
Convex Polygon $ |
27.20% |
Medium |
| 468 |
Validate IP Address |
22.10% |
Medium |
| 467 |
Unique Substrings in Wraparound String |
29.90% |
Medium |
| 466 |
Count The Repetitions |
24.20% |
Hard |
| 465 |
Optimal Account Balancing $ |
29.20% |
Hard |
| 464 |
Can I Win |
22.20% |
Medium |
| 463 |
Island Perimeter |
56.70% |
Easy |
| 462 |
Minimum Moves to Equal Array Elements II |
50.90% |
Medium |
| 461 |
Hamming Distance |
73.20% |
Easy |
| 460 |
LFU Cache |
18.30% |
Hard |
| 459 |
Repeated Substring Pattern |
39.70% |
Easy |
| 458 |
Poor Pigs |
40.70% |
Easy |
| 457 |
Circular Array Loop |
20.60% |
Medium |
| 456 |
132 Pattern |
28.00% |
Medium |
| 455 |
Assign Cookies |
48.10% |
Easy |
| 454 |
4Sum II |
42.80% |
Medium |
| 453 |
Minimum Moves to Equal Array Elements |
46.30% |
Easy |
| 452 |
Minimum Number of Arrows to Burst Balloons |
42.10% |
Medium |
| 451 |
Sort Characters By Frequency |
50.90% |
Medium |
| 450 |
Delete Node in a BST |
34.50% |
Medium |
| 449 |
Serialize and Deserialize BST |
41.20% |
Medium |
| 448 |
Find All Numbers Disappeared in an Array |
58.30% |
Easy |
| 447 |
Number of Boomerangs |
42.20% |
Easy |
| 446 |
Arithmetic Slices II - Subsequence |
22.30% |
Hard |
| 445 |
Add Two Numbers II |
45.40% |
Medium |
| 444 |
Sequence Reconstruction $ |
20.50% |
Medium |
| 443 |
String Compression |
35.80% |
Easy |
| 442 |
Find All Duplicates in an Array |
46.40% |
Medium |
| 441 |
Arranging Coins |
36.20% |
Easy |
| 440 |
K-th Smallest in Lexicographical Order |
21.50% |
Hard |
| 439 |
Ternary Expression Parser $ |
49.40% |
Medium |
| 438 |
Find All Anagrams in a String |
33.50% |
Easy |
| 437 |
Path Sum III |
38.60% |
Easy |
| 436 |
Find Right Interval |
42.30% |
Medium |
| 435 |
Non-overlapping Intervals |
39.80% |
Medium |
| 434 |
Number of Segments in a String |
38.40% |
Easy |
| 433 |
Minimum Genetic Mutation |
33.50% |
Medium |
| 432 |
All O`one Data Structure |
28.30% |
Hard |
| 431 |
Encode N-ary Tree to Binary Tree $ |
53.70% |
Hard |
| 430 |
Flatten a Multilevel Doubly Linked List |
36.20% |
Medium |
| 429 |
N-ary Tree Level Order Traversal |
55.80% |
Easy |
| 428 |
Serialize and Deserialize N-ary Tree $ |
48.10% |
Hard |
| 427 |
Construct Quad Tree |
49.20% |
Easy |
| 426 |
Convert Binary Search Tree to Sorted Doubly Linked List |
43.30% |
Medium |
| 425 |
Word Squares $ |
40.10% |
Hard |
| 424 |
Longest Repeating Character Replacement |
38.10% |
Medium |
| 423 |
Reconstruct Original Digits from English |
40.80% |
Medium |
| 422 |
Valid Word Square $ |
36.40% |
Easy |
| 421 |
Maximum XOR of Two Numbers in an Array |
36.40% |
Medium |
| 420 |
Strong Password Checker |
22.10% |
Hard |
| 419 |
Battleships in a Board |
59.30% |
Medium |
| 418 |
Sentence Screen Fitting $ |
25.10% |
Medium |
| 417 |
Pacific Atlantic Water Flow |
31.10% |
Medium |
| 416 |
Partition Equal Subset Sum |
36.80% |
Medium |
| 415 |
Add Strings |
41.50% |
Easy |
| 414 |
Third Maximum Number |
26.50% |
Easy |
| 413 |
Arithmetic Slices |
53.50% |
Medium |
| 412 |
Fizz Buzz |
57.50% |
Easy |
| 411 |
Minimum Unique Word Abbreviation $ |
25.60% |
Hard |
| 410 |
Split Array Largest Sum |
25.00% |
Hard |
| 409 |
Longest Palindrome |
44.90% |
Easy |
| 408 |
Valid Word Abbreviation $ |
26.20% |
Easy |
| 407 |
Trapping Rain Water II |
33.10% |
Hard |
| 406 |
Queue Reconstruction by Height |
54.10% |
Medium |
| 405 |
Convert a Number to Hexadecimal |
41.80% |
Easy |
| 404 |
Sum of Left Leaves |
46.20% |
Easy |
| 403 |
Frog Jump |
31.70% |
Hard |
| 402 |
Remove K Digits |
25.90% |
Medium |
| 401 |
Binary Watch |
43.00% |
Easy |
| 400 |
Nth Digit |
30.70% |
Easy |
| 399 |
Evaluate Division |
34.60% |
Medium |
| 398 |
Random Pick Index |
30.40% |
Medium |
| 397 |
Integer Replacement |
25.90% |
Easy |
| 396 |
Rotate Function |
28.40% |
Easy |
| 395 |
Longest Substring with At Least K Repeating Characters |
32.50% |
Medium |
| 394 |
Decode String |
38.60% |
Medium |
| 393 |
UTF-8 Validation |
33.00% |
Medium |
| 392 |
Is Subsequence |
44.10% |
Medium |
| 391 |
Perfect Rectangle |
13.30% |
Hard |
| 390 |
Elimination Game |
12.50% |
Medium |
| 389 |
Find the Difference |
49.90% |
Easy |
| 388 |
Longest Absolute File Path |
28.30% |
Medium |
| 387 |
First Unique Character in a String |
43.10% |
Easy |
| 386 |
Lexicographical Numbers |
31.00% |
Medium |
| 385 |
Mini Parser |
26.90% |
Medium |
| 384 |
Shuffle an Array |
45.50% |
Medium |
| 383 |
Ransom Note |
44.60% |
Easy |
| 382 |
Linked List Random Node |
48.60% |
Medium |
| 381 |
Insert Delete GetRandom O(1) - Duplicates allowed |
30.90% |
Hard |
| 380 |
Insert Delete GetRandom O(1) |
33.80% |
Medium |
| 379 |
Design Phone Directory $ |
25.80% |
Medium |
| 378 |
Kth Smallest Element in a Sorted Matrix |
40.20% |
Medium |
| 377 |
Combination Sum IV |
37.50% |
Medium |
| 376 |
Wiggle Subsequence |
35.80% |
Medium |
| 375 |
Guess Number Higher or Lower II |
28.30% |
Medium |
| 374 |
Guess Number Higher or Lower |
31.70% |
Easy |
| 373 |
Find K Pairs with Smallest Sums |
25.50% |
Medium |
| 372 |
Super Pow |
30.10% |
Medium |
| 371 |
Sum of Two Integers |
54.00% |
Easy |
| 370 |
Range Addition $ |
49.90% |
Medium |
| 369 |
Plus One Linked List $ |
50.10% |
Medium |
| 368 |
Largest Divisible Subset |
32.00% |
Medium |
| 367 |
Valid Perfect Square |
36.60% |
Medium |
| 366 |
Find Leaves of Binary Tree $ |
53.60% |
Medium |
| 365 |
Water and Jug Problem |
20.10% |
Medium |
| 364 |
Nested List Weight Sum II $ |
47.20% |
Medium |
| 363 |
Max Sum of Rectangle No Larger Than K |
27.00% |
Hard |
| 362 |
Design Hit Counter $ |
48.30% |
Medium |
| 361 |
Bomb Enemy $ |
32.60% |
Medium |
| 360 |
Sort Transformed Array $ |
40.80% |
Medium |
| 359 |
Logger Rate Limiter $ |
56.00% |
Easy |
| 358 |
Rearrange String k Distance Apart $ |
26.90% |
Hard |
| 357 |
Count Numbers with Unique Digits |
42.50% |
Medium |
| 356 |
Line Reflection $ |
28.70% |
Medium |
| 355 |
Design Twitter |
22.20% |
Medium |
| 354 |
Russian Doll Envelopes |
27.10% |
Hard |
| 353 |
Design Snake Game $ |
19.80% |
Medium |
| 352 |
Data Stream as Disjoint Intervals |
34.40% |
Hard |
| 351 |
Android Unlock Patterns $ |
32.00% |
Medium |
| 350 |
Intersection of Two Arrays II |
41.50% |
Easy |
| 349 |
Intersection of Two Arrays |
47.80% |
Easy |
| 348 |
Design Tic-Tac-Toe $ |
45.60% |
Medium |
| 347 |
Top K Frequent Elements |
44.50% |
Medium |
| 346 |
Moving Average from Data Stream $ |
69.20% |
Easy |
| 345 |
Reverse Vowels of a String |
35.30% |
Easy |
| 344 |
Reverse String |
58.90% |
Easy |
| 343 |
Integer Break |
43.60% |
Medium |
| 342 |
Power of Four |
34.10% |
Easy |
| 341 |
Flatten Nested List Iterator $ |
18.70% |
Medium |
| 340 |
Longest Substring with At Most K Distinct Characters $ |
36.30% |
Hard |
| 339 |
Nested List Weight Sum $ |
54.60% |
Easy |
| 338 |
Counting Bits |
55.40% |
Medium |
| 337 |
House Robber III |
37.00% |
Medium |
| 336 |
Palindrome Pairs |
18.70% |
Hard |
| 335 |
Self Crossing |
18.00% |
Medium |
| 334 |
Increasing Triplet Subsequence |
33.20% |
Medium |
| 333 |
Largest BST Subtree $ |
26.50% |
Medium |
| 332 |
Reconstruct Itinerary |
23.40% |
Medium |
| 331 |
Verify Preorder Serialization of a Binary Tree |
31.50% |
Medium |
| 330 |
Patching Array |
28.80% |
Medium |
| 329 |
Longest Increasing Path in a Matrix |
29.50% |
Medium |
| 328 |
Odd Even Linked List |
37.80% |
Easy |
| 327 |
Count of Range Sum |
24.30% |
Hard |
| 326 |
Power of Three |
35.30% |
Easy |
| 325 |
Maximum Size Subarray Sum Equals k $ |
39.60% |
Easy |
| 324 |
Wiggle Sort II |
20.10% |
Medium |
| 323 |
Number of Connected Components in an Undirected Graph $ |
43.30% |
Medium |
| 322 |
Coin Change |
24.90% |
Medium |
| 321 |
Create Maximum Number |
19.10% |
Hard |
| 320 |
Generalized Abbreviation $ |
40.40% |
Medium |
| 319 |
Bulb Switcher |
39.20% |
Medium |
| 318 |
Maximum Product of Word Lengths |
38.70% |
Medium |
| 317 |
Shortest Distance from All Buildings $ |
29.10% |
Hard |
| 316 |
Remove Duplicate Letters |
23.00% |
Medium |
| 315 |
Count of Smaller Numbers After Self |
28.20% |
Hard |
| 314 |
Binary Tree Vertical Order Traversal $ |
30.10% |
Medium |
| 313 |
Super Ugly Number |
31.20% |
Medium |
| 312 |
Burst Balloons |
24.50% |
Medium |
| 311 |
Sparse Matrix Multiplication $ |
40.00% |
Medium |
| 310 |
Minimum Height Trees |
20.20% |
Medium |
| 309 |
Best Time to Buy and Sell Stock with Cooldown |
32.60% |
Medium |
| 308 |
Range Sum Query 2D - Mutable $ |
20.30% |
Hard |
| 307 |
Range Sum Query - Mutable |
14.50% |
Medium |
| 306 |
Additive Number |
23.30% |
Medium |
| 305 |
Number of Islands II $ |
26.70% |
Hard |
| 304 |
Range Sum Query 2D - Immutable |
21.50% |
Medium |
| 303 |
Range Sum Query - Immutable |
25.70% |
Easy |
| 302 |
Smallest Rectangle Enclosing Black Pixels $ |
36.70% |
Hard |
| 301 |
Remove Invalid Parentheses |
27.00% |
Hard |
| 300 |
Longest Increasing Subsequence |
31.50% |
Medium |
| 299 |
Bulls and Cows |
23.80% |
Easy |
| 298 |
Binary Tree Longest Consecutive Sequence $ |
32.20% |
Medium |
| 297 |
Serialize and Deserialize Binary Tree |
23.80% |
Medium |
| 296 |
Best Meeting Point $ |
41.40% |
Hard |
| 295 |
Find Median from Data Stream |
18.60% |
Hard |
| 294 |
Flip Game II $ |
38.10% |
Medium |
| 293 |
Flip Game $ |
47.60% |
Easy |
| 292 |
Nim Game |
49.50% |
Easy |
| 291 |
Word Pattern II $ |
31.50% |
Hard |
| 290 |
Word Pattern |
26.50% |
Easy |
| 289 |
Game of Life |
32.60% |
Medium |
| 288 |
Unique Word Abbreviation $ |
16.80% |
Easy |
| 287 |
Find the Duplicate Number |
32.80% |
Hard |
| 286 |
Walls and Gates $ |
29.90% |
Medium |
| 285 |
Inorder Successor in BST $ |
32.50% |
Medium |
| 284 |
Peeking Iterator |
31.00% |
Medium |
| 283 |
Move Zeroes |
41.40% |
Easy |
| 282 |
Expression Add Operators |
18.90% |
Hard |
| 281 |
Zigzag Iterator $ |
37.20% |
Medium |
| 280 |
Wiggle Sort $ |
43.30% |
Medium |
| 279 |
Perfect Squares |
28.80% |
Medium |
| 278 |
First Bad Version |
19.80% |
Easy |
| 277 |
Find the Celebrity $ |
31.70% |
Medium |
| 276 |
Paint Fence $ |
25.00% |
Easy |
| 275 |
H-Index II |
31.40% |
Medium |
| 274 |
H-Index |
25.30% |
Medium |
| 273 |
Integer to English Words |
15.50% |
Medium |
| 272 |
Closest Binary Search Tree Value II $ |
26.90% |
Hard |
| 271 |
Encode and Decode Strings $ |
25.40% |
Medium |
| 270 |
Closest Binary Search Tree Value $ |
29.40% |
Easy |
| 269 |
Alien Dictionary $ |
16.50% |
Hard |
| 268 |
Missing Number |
34.70% |
Medium |
| 267 |
Palindrome Permutation II $ |
22.50% |
Medium |
| 266 |
Palindrome Permutation $ |
45.80% |
Easy |
| 265 |
Paint House II $ |
30.00% |
Hard |
| 264 |
Ugly Number II |
21.60% |
Medium |
| 263 |
Ugly Number |
32.60% |
Easy |
| 262 |
Trips and Users * |
16.10% |
Hard |
| 261 |
Graph Valid Tree $ |
25.40% |
Medium |
| 260 |
Single Number III |
37.60% |
Medium |
| 259 |
3Sum Smaller $ |
34.20% |
Medium |
| 258 |
Add Digits |
46.50% |
Easy |
| 257 |
Binary Tree Paths |
21.90% |
Easy |
| 256 |
Paint House $ |
38.40% |
Medium |
| 255 |
Verify Preorder Sequence in Binary Search Tree $ |
32.30% |
Medium |
| 254 |
Factor Combinations $ |
29.00% |
Medium |
| 253 |
Meeting Rooms II $ |
28.80% |
Medium |
| 252 |
Meeting Rooms $ |
35.40% |
Easy |
| 251 |
Flatten 2D Vector $ |
28.30% |
Medium |
| 250 |
Count Univalue Subtrees $ |
32.70% |
Medium |
| 249 |
Group Shifted Strings $ |
25.20% |
Easy |
| 248 |
Strobogrammatic Number III $ |
21.80% |
Hard |
| 247 |
Strobogrammatic Number II $ |
26.70% |
Medium |
| 246 |
Strobogrammatic Number $ |
31.60% |
Easy |
| 245 |
Shortest Word Distance III $ |
43.20% |
Medium |
| 244 |
Shortest Word Distance II $ |
33.70% |
Medium |
| 243 |
Shortest Word Distance $ |
41.80% |
Easy |
| 242 |
Valid Anagram |
39.30% |
Easy |
| 241 |
Different Ways to Add Parentheses |
27.10% |
Medium |
| 240 |
Search a 2D Matrix II |
31.40% |
Medium |
| 239 |
Sliding Window Maximum |
24.30% |
Hard |
| 238 |
Product of Array Except Self |
42.40% |
Medium |
| 237 |
Delete Node in a Linked List |
50.90% |
Easy |
| 236 |
Lowest Common Ancestor of a Binary Tree |
28.30% |
Medium |
| 235 |
Lowest Common Ancestor of a Binary Search Tree |
38.90% |
Medium |
| 234 |
Palindrome Linked List |
23.80% |
Easy |
| 233 |
Number of Digit One |
16.10% |
Medium |
| 232 |
Implement Queue using Stacks |
37.40% |
Easy |
| 231 |
Power of Two |
31.30% |
Easy |
| 230 |
Kth Smallest Element in a BST |
30.50% |
Medium |
| 229 |
Majority Element II |
30.50% |
Medium |
| 228 |
Summary Ranges |
21.10% |
Easy |
| 227 |
Basic Calculator II |
18.00% |
Medium |
| 226 |
Invert Binary Tree |
35.40% |
Easy |
| 225 |
Implement Stack using Queues |
29.60% |
Medium |
| 224 |
Basic Calculator |
15.80% |
Medium |
| 223 |
Rectangle Area |
25.60% |
Easy |
| 222 |
Count Complete Tree Nodes |
19.40% |
Medium |
| 221 |
Maximal Square |
20.30% |
Medium |
| 220 |
Contains Duplicate III |
15.30% |
Medium |
| 219 |
Contains Duplicate II |
25.60% |
Easy |
| 218 |
The Skyline Problem |
16.20% |
Hard |
| 217 |
Contains Duplicate |
35.90% |
Easy |
| 216 |
Combination Sum III |
27.70% |
Medium |
| 215 |
Kth Largest Element in an Array |
27.30% |
Medium |
| 214 |
Shortest Palindrome |
16.80% |
Hard |
| 213 |
House Robber II |
26.30% |
Medium |
| 212 |
Word Search II |
15.00% |
Hard |
| 211 |
Add and Search Word - Data structure design |
20.70% |
Medium |
| 210 |
Course Schedule II |
19.30% |
Medium |
| 209 |
Minimum Size Subarray Sum |
22.90% |
Medium |
| 208 |
Implement Trie (Prefix Tree) |
24.80% |
Medium |
| 207 |
Course Schedule |
21.70% |
Medium |
| 206 |
Reverse Linked List |
31.50% |
Easy |
| 205 |
Isomorphic Strings |
24.20% |
Easy |
| 204 |
Count Primes |
19.00% |
Easy |
| 203 |
Remove Linked List Elements |
25.80% |
Easy |
| 202 |
Happy Number |
31.40% |
Easy |
| 201 |
Bitwise AND of Numbers Range |
23.30% |
Medium |
| 200 |
Number of Islands |
21.90% |
Medium |
| 199 |
Binary Tree Right Side View |
27.10% |
Medium |
| 198 |
House Robber |
28.80% |
Easy |
| 197 |
Rising Temperature * |
25.90% |
Easy |
| 196 |
Delete Duplicate Emails * |
19.00% |
Easy |
| 195 |
Tenth Line # |
32.20% |
Easy |
| 194 |
Transpose File # |
21.40% |
Medium |
| 193 |
Valid Phone Numbers # |
24.40% |
Easy |
| 192 |
Word Frequency # |
26.10% |
Medium |
| 191 |
Number of 1 Bits |
37.30% |
Easy |
| 190 |
Reverse Bits |
28.40% |
Easy |
| 189 |
Rotate Array |
17.80% |
Easy |
| 188 |
Best Time to Buy and Sell Stock IV |
17.30% |
Hard |
| 187 |
Repeated DNA Sequences |
19.50% |
Medium |
| 186 |
Reverse Words in a String II $ |
31.10% |
Medium |
| 185 |
Department Top Three Salaries * |
15.20% |
Hard |
| 184 |
Department Highest Salary * |
19.00% |
Medium |
| 183 |
Customers Who Never Order * |
33.70% |
Easy |
| 182 |
Duplicate Emails * |
38.10% |
Easy |
| 181 |
Employees Earning More Than Their Managers * |
41.00% |
Easy |
| 180 |
Consecutive Numbers * |
26.60% |
Medium |
| 179 |
Largest Number |
15.70% |
Medium |
| 178 |
Rank Scores * |
24.60% |
Medium |
| 177 |
Nth Highest Salary * |
16.30% |
Medium |
| 176 |
Second Highest Salary * |
25.00% |
Easy |
| 175 |
Combine Two Tables * |
34.40% |
Easy |
| 174 |
Dungeon Game |
17.70% |
Hard |
| 173 |
Binary Search Tree Iterator |
29.30% |
Medium |
| 172 |
Factorial Trailing Zeroes |
28.40% |
Easy |
| 171 |
Excel Sheet Column Number |
36.50% |
Easy |
| 170 |
Two Sum III - Data structure design $ |
24.70% |
Easy |
| 169 |
Majority Element |
35.00% |
Easy |
| 168 |
Excel Sheet Column Title |
18.10% |
Easy |
| 167 |
Two Sum II - Input array is sorted $ |
43.30% |
Medium |
| 166 |
Fraction to Recurring Decimal |
12.70% |
Medium |
| 165 |
Compare Version Numbers |
15.20% |
Easy |
| 164 |
Maximum Gap |
24.40% |
Hard |
| 163 |
Missing Ranges $ |
24.10% |
Medium |
| 162 |
Find Peak Element |
31.50% |
Medium |
| 161 |
One Edit Distance $ |
24.00% |
Medium |
| 160 |
Intersection of Two Linked Lists |
28.70% |
Easy |
| 159 |
Longest Substring with At Most Two Distinct Characters $ |
30.20% |
Hard |
| 158 |
Read N Characters Given Read4 II - Call multiple times $ |
22.30% |
Hard |
| 157 |
Read N Characters Given Read4 $ |
29.80% |
Easy |
| 156 |
Binary Tree Upside Down $ |
34.30% |
Medium |
| 155 |
Min Stack |
18.50% |
Easy |
| 154 |
Find Minimum in Rotated Sorted Array II |
31.90% |
Hard |
| 153 |
Find Minimum in Rotated Sorted Array |
33.30% |
Medium |
| 152 |
Maximum Product Subarray |
19.40% |
Medium |
| 151 |
Reverse Words in a String |
15.10% |
Medium |
| 150 |
Evaluate Reverse Polish Notation |
21.10% |
Medium |
| 149 |
Max Points on a Line |
12.60% |
Hard |
| 148 |
Sort List |
22.00% |
Medium |
| 147 |
Insertion Sort List |
26.40% |
Medium |
| 146 |
LRU Cache |
15.00% |
Hard |
| 145 |
Binary Tree Postorder Traversal |
32.40% |
Hard |
| 144 |
Binary Tree Preorder Traversal |
36.30% |
Medium |
| 143 |
Reorder List |
21.00% |
Medium |
| 142 |
Linked List Cycle II |
31.40% |
Medium |
| 141 |
Linked List Cycle |
36.30% |
Medium |
| 140 |
Word Break II |
17.70% |
Hard |
| 139 |
Word Break |
23.00% |
Medium |
| 138 |
Copy List with Random Pointer |
25.10% |
Hard |
| 137 |
Single Number II |
35.00% |
Medium |
| 136 |
Single Number |
45.10% |
Medium |
| 135 |
Candy |
20.50% |
Hard |
| 134 |
Gas Station |
25.70% |
Medium |
| 133 |
Clone Graph |
24.00% |
Medium |
| 132 |
Palindrome Partitioning II |
19.70% |
Hard |
| 131 |
Palindrome Partitioning |
26.70% |
Medium |
| 130 |
Surrounded Regions |
14.60% |
Medium |
| 129 |
Sum Root to Leaf Numbers |
30.30% |
Medium |
| 128 |
Longest Consecutive Sequence |
29.40% |
Hard |
| 127 |
Word Ladder |
19.30% |
Medium |
| 126 |
Word Ladder II |
12.90% |
Hard |
| 125 |
Valid Palindrome |
22.00% |
Easy |
| 124 |
Binary Tree Maximum Path Sum |
21.50% |
Hard |
| 123 |
Best Time to Buy and Sell Stock III |
23.90% |
Hard |
| 122 |
Best Time to Buy and Sell Stock II |
38.30% |
Medium |
| 121 |
Best Time to Buy and Sell Stock |
32.60% |
Medium |
| 120 |
Triangle |
27.40% |
Medium |
| 119 |
Pascal's Triangle II |
29.40% |
Easy |
| 118 |
Pascal's Triangle |
30.10% |
Easy |
| 117 |
Populating Next Right Pointers in Each Node II |
32.00% |
Hard |
| 116 |
Populating Next Right Pointers in Each Node |
36.20% |
Medium |
| 115 |
Distinct Subsequences |
26.30% |
Hard |
| 114 |
Flatten Binary Tree to Linked List |
28.80% |
Medium |
| 113 |
Path Sum II |
26.60% |
Medium |
| 112 |
Path Sum |
29.80% |
Easy |
| 111 |
Minimum Depth of Binary Tree |
29.10% |
Easy |
| 110 |
Balanced Binary Tree |
32.00% |
Easy |
| 109 |
Convert Sorted List to Binary Search Tree |
27.90% |
Medium |
| 108 |
Convert Sorted Array to Binary Search Tree |
34.00% |
Medium |
| 107 |
Binary Tree Level Order Traversal II |
31.10% |
Easy |
| 106 |
Construct Binary Tree from Inorder and Postorder Traversal |
26.80% |
Medium |
| 105 |
Construct Binary Tree from Preorder and Inorder Traversal |
26.40% |
Medium |
| 104 |
Maximum Depth of Binary Tree |
45.10% |
Easy |
| 103 |
Binary Tree Zigzag Level Order Traversal |
26.40% |
Medium |
| 102 |
Binary Tree Level Order Traversal |
29.30% |
Easy |
| 101 |
Symmetric Tree |
31.60% |
Easy |
| 100 |
Same Tree |
41.80% |
Easy |
| 99 |
Recover Binary Search Tree |
24.30% |
Hard |
| 98 |
Validate Binary Search Tree |
20.60% |
Medium |
| 97 |
Interleaving String |
20.80% |
Hard |
| 96 |
Unique Binary Search Trees |
36.00% |
Medium |
| 95 |
Unique Binary Search Trees II |
28.00% |
Medium |
| 94 |
Binary Tree Inorder Traversal |
36.20% |
Medium |
| 93 |
Restore IP Addresses |
21.00% |
Medium |
| 92 |
Reverse Linked List II |
26.10% |
Medium |
| 91 |
Decode Ways |
16.40% |
Medium |
| 90 |
Subsets II |
27.70% |
Medium |
| 89 |
Gray Code |
32.80% |
Medium |
| 88 |
Merge Sorted Array |
29.70% |
Easy |
| 87 |
Scramble String |
24.20% |
Hard |
| 86 |
Partition List |
27.50% |
Medium |
| 85 |
Maximal Rectangle |
22.00% |
Hard |
| 84 |
Largest Rectangle in Histogram |
22.60% |
Hard |
| 83 |
Remove Duplicates from Sorted List |
34.50% |
Easy |
| 82 |
Remove Duplicates from Sorted List II |
25.00% |
Medium |
| 81 |
Search in Rotated Sorted Array II |
31.40% |
Medium |
| 80 |
Remove Duplicates from Sorted Array II |
30.50% |
Medium |
| 79 |
Word Search |
20.30% |
Medium |
| 78 |
Subsets |
28.20% |
Medium |
| 77 |
Combinations |
30.90% |
Medium |
| 76 |
Minimum Window Substring |
18.90% |
Hard |
| 75 |
Sort Colors |
32.60% |
Medium |
| 74 |
Search a 2D Matrix |
31.60% |
Medium |
| 73 |
Set Matrix Zeroes |
31.40% |
Medium |
| 72 |
Edit Distance |
26.20% |
Hard |
| 71 |
Simplify Path |
20.00% |
Medium |
| 70 |
Climbing Stairs |
34.40% |
Easy |
| 69 |
Sqrt(x) |
23.10% |
Medium |
| 68 |
Text Justification |
14.60% |
Hard |
| 67 |
Add Binary |
24.70% |
Easy |
| 66 |
Plus One |
30.40% |
Easy |
| 65 |
Valid Number |
11.40% |
Hard |
| 64 |
Minimum Path Sum |
32.20% |
Medium |
| 63 |
Unique Paths II |
28.00% |
Medium |
| 62 |
Unique Paths |
32.80% |
Medium |
| 61 |
Rotate List |
21.70% |
Medium |
| 60 |
Permutation Sequence |
22.80% |
Medium |
| 59 |
Spiral Matrix II |
31.80% |
Medium |
| 58 |
Length of Last Word |
28.00% |
Easy |
| 57 |
Insert Interval |
21.40% |
Hard |
| 56 |
Merge Intervals |
22.40% |
Hard |
| 55 |
Jump Game |
27.00% |
Medium |
| 54 |
Spiral Matrix |
20.80% |
Medium |
| 53 |
Maximum Subarray |
34.50% |
Medium |
| 52 |
N-Queens II |
35.80% |
Hard |
| 51 |
N-Queens |
26.50% |
Hard |
| 50 |
"Pow(x |
n)" |
26.70% |
| 49 |
Anagrams |
24.30% |
Medium |
| 48 |
Rotate Image |
31.90% |
Medium |
| 47 |
Permutations II |
25.80% |
Hard |
| 46 |
Permutations |
31.90% |
Medium |
| 45 |
Jump Game II |
24.20% |
Hard |
| 44 |
Wildcard Matching |
15.00% |
Hard |
| 43 |
Multiply Strings |
21.00% |
Medium |
| 42 |
Trapping Rain Water |
30.00% |
Hard |
| 41 |
First Missing Positive |
22.90% |
Hard |
| 40 |
Combination Sum II |
25.20% |
Medium |
| 39 |
Combination Sum |
27.90% |
Medium |
| 38 |
Count and Say |
25.20% |
Easy |
| 37 |
Sudoku Solver |
21.80% |
Hard |
| 36 |
Valid Sudoku |
27.20% |
Easy |
| 35 |
Search Insert Position |
35.40% |
Medium |
| 34 |
Search for a Range |
27.50% |
Medium |
| 33 |
Search in Rotated Sorted Array |
28.80% |
Hard |
| 32 |
Longest Valid Parentheses |
20.90% |
Hard |
| 31 |
Next Permutation |
25.00% |
Medium |
| 30 |
Substring with Concatenation of All Words |
19.40% |
Hard |
| 29 |
Divide Two Integers |
15.00% |
Medium |
| 28 |
Implement strStr() |
22.20% |
Easy |
| 27 |
Remove Element |
32.10% |
Easy |
| 26 |
Remove Duplicates from Sorted Array |
31.30% |
Easy |
| 25 |
Reverse Nodes in k-Group |
25.50% |
Hard |
| 24 |
Swap Nodes in Pairs |
32.50% |
Medium |
| 23 |
Merge k Sorted Lists |
21.10% |
Hard |
| 22 |
Generate Parentheses |
32.60% |
Medium |
| 21 |
Merge Two Sorted Lists |
32.70% |
Easy |
| 20 |
Valid Parentheses |
26.50% |
Easy |
| 19 |
Remove Nth Node From End of List |
27.10% |
Easy |
| 18 |
4Sum |
21.70% |
Medium |
| 17 |
Letter Combinations of a Phone Number |
25.80% |
Medium |
| 16 |
3Sum Closest |
26.90% |
Medium |
| 15 |
3Sum |
16.90% |
Medium |
| 14 |
Longest Common Prefix |
25.50% |
Easy |
| 13 |
Roman to Integer |
34.00% |
Easy |
| 12 |
Integer to Roman |
33.80% |
Medium |
| 11 |
Container With Most Water |
32.00% |
Medium |
| 10 |
Regular Expression Matching |
20.70% |
Hard |
| 9 |
Palindrome Number |
28.30% |
Easy |
| 8 |
String to Integer (atoi) |
13.00% |
Easy |
| 7 |
Reverse Integer |
25.10% |
Easy |
| 6 |
ZigZag Conversion |
21.80% |
Easy |
| 5 |
Longest Palindromic Substring |
20.70% |
Medium |
| 4 |
Median of Two Sorted Arrays |
17.40% |
Hard |
| 3 |
Longest Substring Without Repeating Characters |
20.60% |
Medium |
| 2 |
Add Two Numbers |
21.10% |
Medium |
| 1 |
Two Sum |
17.70% |
Medium |
