Submission #761564

#	Time	Username	Problem	Language	Result	Execution time	Memory
761564		vjudge1	XOR Sum (info1cup17_xorsum)	C++17	7 / 100	1668 ms	8820 KiB

xorsum

#include <bits/stdc++.h>

using namespace std;

typedef int64_t ll;

signed main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    int n;
    cin >> n;
    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 ^= a[i] + a[j];
        }
    }
    cout << ans;
}

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