oj.uz

Submission #683715

# Submission time Handle Problem Language Result Execution time Memory
683715 2023-01-19T07:55:32 Z NintsiChkhaidze Red-blue table (IZhO19_stones) C++14
27 / 100
 28 ms 1868 KB 
#include <bits/stdc++.h>
#define ll long long
#define s second
#define pb push_back
#define f first
#define left (h<<1),l,((l+r)>>1)
#define right ((h<<1)|1),((l+r)>>1) + 1,r
#define pii pair<int,int>
// #define int ll // ? 
using namespace std;

const int N = 1005,mod = 1000000007; // ?
int a[N][N],y[N],x[N],f[N];
int ans,n,m;

void solve(){
    if (m >= n){
        for (int i = 1; i <= n; i++)
            for (int j = 1; j <= m; j++)
                a[i][j] = 0;
        //column-ebs ar vapucheb
        ans = m; int k = m/2 + 1;
        
        for (int j = 1; j <= m; j++) y[j] = n - n/2 - 1;
        for (int i = 1; i <= n; i++){
            int cnt = 0;
            for (int j = 1; j <= m; j++) f[j] = 0;
            for (int j = 1; j <= m; j++){
                if (y[j]) {
                    --y[j];
                    f[j] = 1;
                    cnt++;
                }
                if (cnt == k) {
                    ++ans;
                    break;
                }
            }
            if (cnt < k) break;

            for (int j = 1; j <= m; j++)
                if (f[j]) a[i][j] = 1;
        }
        return;
    }
    //n > m
    //row-ebs ar vapucheb
    for (int i = 1; i <= n; i++)
        for (int j = 1; j <= m; j++)
            a[i][j] = 1;

    ans = n; int k = n/2 + 1;
    for (int i = 1; i <= n; i++) x[i] = m - m/2 - 1;

    for (int j = 1; j <= m; j++){
        int cnt=0;
        for (int i = 1; i <= n; i++) f[i] = 0;
        for (int i = 1; i <= n; i++){
            if (x[i]){
                --x[i];
                f[i] = 1;
                ++cnt;
            }
            if (cnt == k) {
                ++ans;
                break;
            }
        }
        if (cnt < k) break;

        for (int i = 1; i <= n; i++){
            if (f[i]) a[i][j] = 0;
        }
    }
}
signed main (){
    ios_base::sync_with_stdio(0),cin.tie(NULL),cout.tie(NULL);

    int T;
    cin>>T;

    while (T--){
        cin>>n>>m;
        solve();
        cout<<ans<<endl;
        for (int i = 1; i <= n; i++){
            for (int j = 1; j <= m; j++){
                if (a[i][j]) cout<<"+";
                else cout<<"-";
            }
            cout<<"\n";
        }
        
    }
}

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 468 KB Output is correct

Subtask #3
0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 2 ms 468 KB Output is correct
4 Incorrect 3 ms 596 KB Wrong answer in test 5 29: 31 < 32
5 Halted 0 ms 0 KB -

Subtask #4
0 / 11.0

# Verdict Execution time Memory Grader output
1 Incorrect 28 ms 1660 KB Wrong answer in test 97 21: 107 < 116
2 Halted 0 ms 0 KB -

Subtask #5
0 / 15.0

# Verdict Execution time Memory Grader output
1 Incorrect 24 ms 1868 KB Wrong answer in test 24 24: 35 < 44
2 Halted 0 ms 0 KB -

Subtask #6
0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 2 ms 468 KB Output is correct
4 Incorrect 3 ms 596 KB Wrong answer in test 5 29: 31 < 32
5 Halted 0 ms 0 KB -