solves water bottles

Author: anishLearnsToCode

README.md

@@ -383,7 +383,7 @@
 | 1502 | [Can Make Arithmetic Progression From Sequence](https://leetcode.com/problems/can-make-arithmetic-progression-from-sequence)                         |                                                    [![Java](assets/java.png)](src/CanMakeArithmeticProgressionFromSequence.java)                                                     |                                                                                                                                   |
 | 1507 | [Reformat Date](https://leetcode.com/problems/reformat-date)                                                                                         |                                                                  [![Java](assets/java.png)](src/ReformatDate.java)                                                                   |                                                                                                                                   |
 | 1512 | [Number of Good Pairs](https://leetcode.com/problems/number-of-good-pairs)                                                                           |                                                                [![Java](assets/java.png)](src/NumberOfGoodPairs.java)                                                                |                                                                                                                                   |
-| 1518 | [Water Bottles](https://leetcode.com/problems/water-bottles)                                                                                         |                                                                                                                                                                                      |                                                                                                                                   |
+| 1518 | [Water Bottles](https://leetcode.com/problems/water-bottles)                                                                                         |                                                                  [![Java](assets/java.png)](src/WaterBottles.java)                                                                   |                                                                                                                                   |
 | 1523 | [Count Odd Numbers In Interval Range](https://leetcode.com/problems/count-odd-numbers-in-an-interval-range)                                          |                                                                                                                                                                                      |                                                                                                                                   |
 | 1528 | [Shuffle Strings](https://leetcode.com/problems/shuffle-string)                                                                                      |                                                                                                                                                                                      |                                                                                                                                   |
 | 1534 | [Count Good Triplets](https://leetcode.com/problems/count-good-triplets)                                                                             |                                                                                                                                                                                      |                                                                                                                                   |

src/WaterBottles.java

@@ -0,0 +1,10 @@
+public class WaterBottles {
+    public int numWaterBottles(int numBottles, int numExchange) {
+        int drink = numBottles;
+        while (numBottles >= numExchange) {
+            drink += numBottles / numExchange;
+            numBottles = numBottles  % numExchange + numBottles / numExchange;
+        }
+        return drink;
+    }
+}