Submission #587985

#	Time	Username	Problem	Language	Result	Execution time	Memory
587985		Jean7	XOR Sum (info1cup17_xorsum)	C++14	7 / 100	1692 ms	8020 KiB

xorsum

#include <bits/stdc++.h>
#define fastio ios_base::sync_with_stdio(0),cin.tie(0),cout.tie(0)
#define int long long

using namespace std ;

signed main ()
{
    fastio ;
    int n , ans = 0 ;
    cin >> n ;
    int a[n+1] ;
    for ( int i = 1 ; i <= n ; i++ )
    {
        cin >> a[i] ;
        for ( int j = 1 ; j <= i ; j++ )
            ans ^= ( a[i] + a[j] ) ;
    }
    cout << ans ;
    return 0 ;
}

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