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Given numBottles full water bottles, you can exchange numExchange empty water bottles for one full water bottle.
The operation of drinking a full water bottle turns it into an empty bottle.
Return the maximum number of water bottles you can drink.
Example 1:
Input: numBottles = 9, numExchange = 3
Output: 13
Explanation: You can exchange 3 empty bottles to get 1 full water bottle.
Number of water bottles you can drink: 9 + 3 + 1 = 13.
Example 2:
Input: numBottles = 15, numExchange = 4
Output: 19
Explanation: You can exchange 4 empty bottles to get 1 full water bottle.
Number of water bottles you can drink: 15 + 3 + 1 = 19.
Example 3:
Input: numBottles = 5, numExchange = 5
Output: 6
Example 4:
Input: numBottles = 2, numExchange = 3
Output: 2
Constraints:
1 <= numBottles <= 1002 <= numExchange <= 100