Submission #736493

#	Time	Username	Problem	Language	Result	Execution time	Memory
736493		sq00	XOR Sum (info1cup17_xorsum)	C++14	7 / 100	1672 ms	8828 KiB

xorsum

#include <bits/stdc++.h>
using namespace std;

int main()
{
    cin.tie(0)->sync_with_stdio(0);
//    freopen("div7.in", "r", stdin);
//    freopen("div7.out", "w", stdout);
    int n;
    cin >> n;
    vector<int>v(n);
    for(int i = 0; i < n; i++) {cin >> v[i];}
    int ans = 0;
    for(int i = 0; i < n; i++) {
        for(int e = i; e < n; e++) {
            ans ^= v[i] + v[e];
        }
    }
    cout << ans;
}

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