Create two sum.cpp

Author: sanyathisside

LeetCode/two sum.cpp

@@ -0,0 +1,17 @@
+#include<unordered_map>
+class Solution {
+public:
+    vector<int> twoSum(vector<int>& nums, int target) {
+        unordered_map<int,int> m;
+        vector<int> ans;
+        for(int i=0;i<nums.size();i++)
+        {
+            if(m.find(target-nums[i])!=m.end()){
+                ans.push_back(i);
+                ans.push_back(m[target-nums[i]]);
+            }
+            m[nums[i]]=i;
+        }
+            return ans;
+    }
+};