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g1501_1600.s1518_water_bottles.readme.md Maven / Gradle / Ivy

1518\. Water Bottles

Easy

There are `numBottles` water bottles that are initially full of water. You can exchange `numExchange` empty water bottles from the market with one full water bottle.

The operation of drinking a full water bottle turns it into an empty bottle.

Given the two integers `numBottles` and `numExchange`, return _the **maximum** number of water bottles you can drink_.

**Example 1:**

![](https://assets.leetcode.com/uploads/2020/07/01/sample_1_1875.png)

**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:**

![](https://assets.leetcode.com/uploads/2020/07/01/sample_2_1875.png)

**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.

**Constraints:**

*   `1 <= numBottles <= 100`
*   `2 <= numExchange <= 100`