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Submission #490787

# Submission time Handle Problem Language Result Execution time Memory
490787 2021-11-29T08:54:06 Z infertechno2 Chessboard (IZhO18_chessboard) C++17
8 / 100
 22 ms 3708 KB 
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

const ll Size=1e5+1;

class point2d{
public:
    ll x,y;
};

point2d top[Size],bot[Size];

void solve(){
    ll n,k;
    cin>>n>>k;
    for(ll i=0;i<k;i++){
        cin>>top[i].y>>top[i].x>>bot[i].y>>bot[i].x;
    }
    for(ll i=n/2;i>=1;i--){
        if(n%i==0 and (n/i)%2==1){
            cout<<((n/i/2)*(n/i/2+1)*i*i)*2<<endl;
            return;
        }
    }
    cout<<(n*n)/2<<endl;
}

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

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct

Subtask #2
0 / 8.0

# Verdict Execution time Memory Grader output
1 Incorrect 22 ms 3708 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 332 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 332 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 23.0

# Verdict Execution time Memory Grader output
1 Incorrect 22 ms 3708 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Incorrect 22 ms 3708 KB Output isn't correct
10 Halted 0 ms 0 KB -