Submission #649465

#	Time	Username	Problem	Language	Result	Execution time	Memory
649465		DangerNoodle7591	XOR Sum (info1cup17_xorsum)	C++17	7 / 100	1693 ms	4180 KiB

xorsum

#include <iostream>
using namespace std;
int main(){
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);cout.tie(NULL);
	int n;cin>>n;
	int arr[n];
	int x=0;
	for(int i=0;i<n;i++){
		cin>>arr[i];
		x=x^(arr[i]*2);
	}
	for(int i=0;i<n;i++){
		for(int j=i+1;j<n;j++){
			x=x^(arr[i]+arr[j]);
		}
	}
	cout<<x<<"\n";
}

• Subtask 1: 7 / 7
• Subtask 2: 0 / 11
• Subtask 3: 0 / 21
• Subtask 4: 0 / 38
• Subtask 5: 0 / 23