Editorial for Bedao Mini Contest 04 - PARITY

Remember to use this editorial only when stuck, and not to copy-paste code from it. Please be respectful to the problem author and editorialist.
Submitting an official solution before solving the problem yourself is a bannable offence.

Code mẫu

#include <bits/stdc++.h>

using namespace std;
const string filename = "PARITY";

int n;
int a[100001];

int main(int argc, char** argv)
{
    ios::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);

    freopen( (filename + ".inp").c_str(), "r", stdin);
    freopen( (filename + ".out").c_str(), "w", stdout);

    cin >> n;                    
    for (int i = 1; i <= n; i++)
        cin >> a[i];
    cout << ((accumulate(a + 1, a + 1 + n, 0LL) % 2) ? "NO" : "YES");
}

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