Unique Number - I Solution Added

Author: akashmodak97

Hacker Blocks/Unique Number - I.cpp

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+/* Hacker Blocks */
+/* Title - Unique Number - I */
+/* Created By - Akash Modak */
+/* Date 7/1/2020 */
+
+#include<iostream> 
+using namespace std;
+int main() {
+	int n;
+	cin>>n;
+	int x = 0;
+	for(int i=1;i<=n;i++){
+		int m;
+		cin>>m;
+		x^=m;
+	}
+	cout<<x<<endl;
+	return 0;
+}