Submission #649434

#	Time	Username	Problem	Language	Result	Execution time	Memory
649434		AZAxx	XOR Sum (info1cup17_xorsum)	C++14	7 / 100	1682 ms	8732 KiB

xorsum

#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define pb push_back

int main(){

	ll n; cin >> n;
	ll a[n];
	for(ll &x : a) cin >> x;

	ll ans=0;
	for(int i=0; i<n; i++){
		for(int j=i; j<n; j++) ans= (ans^(a[i]+a[j]));
	}
	cout << ans << endl;
}

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