oj.uz

Submission #495251

# Submission time Handle Problem Language Result Execution time Memory
495251 2021-12-18T08:03:35 Z kingline Chessboard (IZhO18_chessboard) C++17
0 / 100
 3 ms 332 KB 
#include <bits/stdc++.h>
#define pb push_back
#define ios ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
#define all(data) data.begin() , data.end()
#define endl '\n'
//freopen("nenokku_easy.in", "r", stdin);
//freopen("nenokku_easy.out", "w", stdout);
//#define int long long

using namespace std;

typedef long long ll;
const int N = 1e3 + 5;

int n, k, y[N], x[N];
long long pref[N][N];

main() {
    /*ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);*/
    cin >> n >> k;
    for(int kk = 1; kk <= k; kk++) {
        int xx, yy;
        cin >> x[kk] >> y[kk] >> xx >> yy;
    }
    vector < int > dv;
    dv.pb(1);
    for(int i = 2; i <= sqrt(n); i++) {
        if(n % i == 0) {
            dv.pb(i);
            if(n / i != i) dv.pb(n / i);
        }
    }
    sort(all(dv));
    if(dv.size() == 1) {
        int odd = 0, even = 0;
        for(int i = 1; i <= k; i++) {
            if(x[i] % 2 == y[i] % 2) odd++;
            else even++;
        }
        cout << (n * n + 1) / 2 - max(even, odd) + min(even, odd);
    }
}

/*
5
2 8 5 1 10
5
2 3 5 3
2 5 3 3
1 4 4
2 3 4 2
1 1 2
*/

Compilation message

chessboard.cpp:18:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   18 | main() {
      | ^~~~

Subtask #1
0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Incorrect 0 ms 204 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #2
0 / 8.0

# Verdict Execution time Memory Grader output
1 Runtime error 3 ms 332 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 204 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 16.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 204 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 23.0

# Verdict Execution time Memory Grader output
1 Runtime error 3 ms 332 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Incorrect 0 ms 204 KB Output isn't correct
3 Halted 0 ms 0 KB -