제출 #1139573

#제출 시각아이디문제언어결과실행 시간메모리
1139573MuhammetXOR Sum (info1cup17_xorsum)C++20
7 / 100
1694 ms4168 KiB
#include "bits/stdc++.h"

using namespace std;

#define ll long long
#define SZ(s) (int)s.size()
#define ff first
#define ss second

const int N = (2e5 + 5);

int T, n, m;

signed main(){
	ios::sync_with_stdio(false); cin.tie(nullptr);

	cin >> n;
	vector <int> a(n);
	for(int i = 0; i < n; i++){
		cin >> a[i];
	}
	int ans = 0;
	for(int i = 0; i < n; i++){
		for(int j = i; j < n; j++){
			ans = (ans^(a[i]+a[j]));
		}
	}
	cout << ans << '\n';

	return 0;
}
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