1 files changed, 12 insertions, 0 deletions
diff --git a/LonelyInteger.cpp b/LonelyInteger.cpp
new file mode 100644
index 0000000..a5ce4a4
--- /dev/null
+++ b/LonelyInteger.cpp
@@ -0,0 +1,12 @@
+#include<bits/stdc++.h>
+using namespace std;
+int main(){
+  int n, x = 0, k;
+  cin >> n;
+  for(int i = 0; i < n; i++){
+    cin >> k;
+    x ^= k;
+  }
+  cout << x;
+  return 0;
+}