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-# STL-in-Cpp
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+# C++ Standard Template Library (STL) Guide
+
+The Standard Template Library (STL) is a powerful set of C++ template classes that provide general-purpose classes and functions. This guide provides an overview of key components of the STL, including arrays, vectors, deques, lists, maps, queues, sets, stacks, and algorithms.
+
+## Components of STL
+
+### Containers
+
+1. **Array**: Static array with a fixed size.
+2. **Vector**: Dynamic array that can resize itself.
+3. **Deque**: Double-ended queue.
+4. **List**: Doubly-linked list.
+5. **Map**: Associative container that stores key-value pairs in a sorted order based on keys.
+6. **Queue**: FIFO (First In First Out) data structure.
+7. **Set**: Associative container that stores unique keys in a sorted order.
+8. **Stack**: LIFO (Last In First Out) data structure.
+
+### Algorithms
+
+STL provides various algorithms to operate on containers or ranges:
+   - Sorting: `std::sort`
+   - Searching: `std::find`, `std::binary_search`
+   - Modifying: `std::transform`, `std::fill`, `std::copy`
+   - Numeric: `std::accumulate`, `std::inner_product`, `std::partial_sum`
+   - And many more...
+
+## Usage
+
+To use the STL components in your C++ programs, include the appropriate header files and utilize the desired classes and functions. For example:
+```cpp
+#include <iostream>
+#include <vector>
+#include <algorithm>
+
+int main() {
+    std::vector<int> vec = {3, 1, 4, 1, 5, 9, 2, 6, 5};
+
+    // Sort the vector
+    std::sort(vec.begin(), vec.end());
+
+    // Print the sorted vector
+    for (int x : vec) {
+        std::cout << x << ' ';
+    }
+    std::cout << std::endl;
+
+    return 0;
+}
+
+References
+
+C++ Reference - STL
+STL Tutorial
+
+License
+This guide is licensed under the MIT License - see the LICENSE file