Submission #1272668

#	Time	Username	Problem	Language	Result	Execution time	Memory
1272668		rana_azka	Logičari (COCI21_logicari)	C++20	10 / 110	10 ms	580 KiB

Main

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

const int INF = 1e18;
const int MOD = 1e9+7;
const int MAXN = 5000;

int n;

void mulaidarinol(){}

void solve(){
    cin >> n;
    for(int i = 1; i <= n; i++){
        int u, v; cin >> u >> v;
    }

    if(n % 4 == 0) cout << n / 2 << endl;
    else cout << -1 << endl;
}

signed main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);

    int tc = 1;
    // cin >> tc;
    while(tc--){
        // mulaidarinol();
        solve();
        // cerr << endl;
    }

    return 0;
}

• Subtask 1: 10 / 10
• Subtask 2: 0 / 10
• Subtask 3: 0 / 40
• Subtask 4: 0 / 50