pair

hello.cpp

@@ -0,0 +1,29 @@
+  #include <bits/stdc++.h>
+using namespace std;
+
+class Solution {
+public:
+    bool hasPairWithSum(vector<int>& arr, int target) {
+        int i = 0, j = arr.size() - 1;
+        while (i < j) {
+            int sum = arr[i] + arr[j];
+            if (sum == target) return true;
+            else if (sum < target) i++;
+            else j--;
+        }
+        return false;
+    }
+}; // ✅ class खत्म होने के बाद semicolon ज़रूरी है
+
+int main() {
+    vector<int> arr = {1, 2, 4, 7, 11, 15};
+    int target = 15;
+
+    Solution sol;
+    if (sol.hasPairWithSum(arr, target))
+        cout << "Pair Found!" << endl;
+    else
+        cout << "No Pair Found!" << endl;
+
+    return 0;
+}