From e24d6ffa18cc2c4fa899ee48aae875dd98f6073a Mon Sep 17 00:00:00 2001
From: HarshitTiwari-20 <ht337378@gmail.com>
Date: Wed, 8 Oct 2025 01:28:08 +0530
Subject: [PATCH] Add 2sum solution in C++

---
 C++/2sum.cpp | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 C++/2sum.cpp

diff --git a/C++/2sum.cpp b/C++/2sum.cpp
new file mode 100644
index 0000000..a72bfe3
--- /dev/null
+++ b/C++/2sum.cpp
@@ -0,0 +1,16 @@
+class Solution {
+public:
+    vector<int> twoSum(vector<int>& nums, int target) {
+        map<int, int> mpp;
+        int n = nums.size();
+        for(int i = 0; i<n; i++) {
+            int num = nums[i];
+            int moreNeeded = target - num;
+            if(mpp.find(moreNeeded) != mpp.end()) {
+                return {mpp[moreNeeded], i};
+            }
+            mpp[num] = i;
+        }
+        return {-1, -1};
+    }
+};
\ No newline at end of file