Submission #646396

#	Time	Username	Problem	Language	Result	Execution time	Memory
646396		murad_2005	XOR Sum (info1cup17_xorsum)	C++17	7 / 100	1690 ms	636 KiB

xorsum

#include<bits/stdc++.h>
#define ll long long
#define ld long double
#define ull unsigned long long
#define ui unsigned int
#define eb emplace_back
#define all(v) v.begin(), v.end()
#define rall(v) v.rbegin(), v.rend()
#define pb push_back
#define pf push_front
#define pii pair<int, int>
#define pil pair<int, ll>
#define plli pair<long long, int>
#define pdi pair<double, int>
#define pldldi pair<ld, pair<ld, int>>
#define pdd pair<double, double>
#define pid pair<int, double>
#define piii pair<int, pair<int, int>>
#define pllll pair<long long, long long>
#define pllllll pair<ll, pllll>
#define INF 2e9 + 5
#define size(v) v.size()
#define f first
#define s second
#define Pi 3.14159265359

using namespace std;

const int up = 1e5 + 5;

int a[up];

void solve(){
    int n;
    cin >> n;
    int Res = 0;
    for(int i = 0; i < n; i++){
        cin >> a[i];
        for(int j = 0; j <= i; j++){
            Res ^= (a[i] + a[j]);
        }
    }
    cout << Res;
}

int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    int t;
    t = 1;
    // cin >> t;
    while(t--){
        solve();
    }
    return 0;
}

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