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Author: kerong2002

C++/1518. Water Bottles.cpp

@@ -0,0 +1,13 @@
+class Solution {
+public:
+    int numWaterBottles(int numBottles, int numExchange) {
+        int ans = numBottles;
+        while (numBottles >= numExchange) {
+            int temp = numBottles / numExchange;
+            ans += temp;
+            numBottles %= numExchange;
+            numBottles += temp;
+        }
+        return ans;
+    }
+};