leetcode_1512

Author: KeremTAN

1512_Number_of_Good_Pairs.cpp

@@ -0,0 +1,12 @@
+class Solution {
+public:
+    int numIdenticalPairs(vector<int>& nums) {
+        int ret{};
+        vector<int> memorization(101, 0);
+        for(size_t i{}; i<nums.size(); i++){
+            ret+=memorization[nums[i]];
+            memorization[nums[i]]++;
+        }
+        return ret;
+    }
+};