feat: day 21 easy solution

OPCODE-Open-Spring-Fest · Apr 16, 2024 · 5f42276 · 5f42276
1 parent bd9a95d
commit 5f42276
Showing 1 changed file with 15 additions and 1 deletion.
diff --git a/Easy/Day 21/solution.cpp b/Easy/Day 21/solution.cpp
@@ -1 +1,15 @@
-// Write your code here.
+// Write your code here.
+#include <bits/stdc++.h>
+using namespace std;
+int main(){
+    int n;
+    cin >> n;
+    int sum = 0;
+    for(int i = 0 ;  i< (4*n)-1 ; i++){
+        int temp;
+        cin >> temp;
+        sum = sum ^ temp;
+    }
+    cout << sum;
+    return 0;
+}