Update two-sum.cpp

Author: Namanjain6152

CPP/Problems/two-sum.cpp

@@ -1,13 +1,22 @@
 class Solution {
 public:
     vector<int> twoSum(vector<int>& nums, int target) {
-        unordered_map<int,int> m;
-        for(int i=0;i<nums.size();i++){
-            if(m.find(target-nums[i]) != m.end()){
-                return {m[target-nums[i]],i};
+        int n=nums.size();
+        vector<int>v;
+        for(int i=0;i<n;i++)
+        {
+            for(int j=i+1;j<n;j++)
+            {
+                if(nums[i]+nums[j]==target)
+                {
+                    v.push_back(i);
+                    v.push_back(j);
+                    return v;
+                }
             }
-            m[nums[i]]=i;
         }
-        return {};
+        v.push_back(-1);
+        return v;
+        
     }
 };