leetcode_771

Author: KeremTAN

771_Jewels_and_Stones.cpp

@@ -0,0 +1,12 @@
+class Solution {
+public:
+    int numJewelsInStones(string jewels, string stones) {
+        int ret{};
+        unordered_map<char, int> umj;
+        for(const char& c : jewels)
+            umj[c]++;
+        for(const char& c : stones)
+            ret+=umj[c];
+        return ret;
+    }
+};