oj.uz

Submission #424765

# Submission time Handle Problem Language Result Execution time Memory
424765 2021-06-12T09:46:57 Z egekabas Red-blue table (IZhO19_stones) C++14
27 / 100
 36 ms 2236 KB 
#include <bits/stdc++.h>
#define all(x) (x).begin(), (x).end()
#define ff first
#define ss second
#define pb push_back
#define mp make_pair
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;
typedef pair<ll, ll> pll;
typedef pair<ull, ull> pull;
typedef pair<int, int> pii;
typedef pair<ld, ld> pld;
int n, m, rev;
int ans[1009][1009];
int tmp[1009][1009];
int cur[1009];
void solve(){
    cin >> n >> m;
    rev = 0;
    if(n > m){
        rev = 1;
        swap(n, m);
    }
    for(int i = 0; i < n; ++i)
        cur[i] = 0;
    for(int j = 0; j < m; ++j){
        int need = (n+2)/2;
        for(int i = 0; i < n; ++i){
            if(cur[i] > m/2 || n-i == need){
                --need;
                ans[i][j] = 0;
            }
            else{
                ++cur[i];
                ans[i][j] = 1;
            }
        }
    }
    int totval = m;
    for(int i = 0; i < n; ++i)
        if(cur[i] > m/2)
            ++totval;
    if(rev){
        for(int i = 0; i < n; ++i)
            for(int j = 0; j < m; ++j)
                tmp[j][i] = ans[i][j];
        swap(n, m);
        for(int i = 0; i < n; ++i)
            for(int j = 0; j < m; ++j)
                ans[i][j] = tmp[i][j];
    }
    cout << totval << '\n';
    for(int i = 0; i < n; ++i){
        for(int j = 0; j < m; ++j){
            if(ans[i][j]^rev)
                cout << '+';
            else
                cout << '-';
        }
        cout << '\n';
    }
}
int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    
    //freopen("in.txt", "r", stdin);
    //freopen("out.txt", "w", stdout);

    int t;
    cin >> t;
    while(t--)
        solve();
    
}

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 716 KB Output is correct

Subtask #3
0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 716 KB Output is correct
4 Incorrect 2 ms 716 KB Wrong answer in test 5 29: 31 < 32

Subtask #4
0 / 11.0

# Verdict Execution time Memory Grader output
1 Incorrect 36 ms 2236 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 33 ms 1864 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 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 716 KB Output is correct
4 Incorrect 2 ms 716 KB Wrong answer in test 5 29: 31 < 32