oj.uz

Submission #905763

# Submission time Handle Problem Language Result Execution time Memory
905763 2024-01-13T04:41:12 Z Der_Vlapos Red-blue table (IZhO19_stones) C++17
27 / 100
 29 ms 1372 KB 
#pragma GCC optimize("Ofast")
#pragma GCC target ("sse4")
#include <map>
#include <set>
#include <cmath>
#include <queue>
#include <vector>
#include <iomanip>
#include <cstring>
#include <limits.h>
#include <iostream>
#include <string.h>
#include <algorithm>
using namespace std;
 
#define ff first
#define sc second
#define pb push_back
#define ll long long
#define pll pair<ll, ll>
#define pii pair<int, int>
#define ull unsigned long long
 
const ll inf = 1e18;
const ll mod = 1e9 + 7;
const ll wmod = 998244353;
#define int long long
 
void solve(){
    int n, m;
    cin >> n >> m;
    char a[n + 1][m + 1];
    if (n >= m){
        for (int i = 1; i <= n; i++){
            for (int j = 1; j <= m; j++){
                a[i][j] = '+';
            }
        }
        int arr[n + 1] = {};
        for (int j = 1; j <= m; j++){
            int cnt = 0;
            for (int i = 1; i <= n; i++)
                if (arr[i] < (m - (m % 2 == 0)) / 2)cnt++;
            if (cnt < n / 2 + 1)break;
            else cnt = n / 2 + 1;
            for (int i = 1; i <= n; i++){
                if (arr[i] < (m - (m % 2 == 0)) / 2 and cnt){a[i][j] = '-'; arr[i]++; cnt--;}
            }
        }
    }else {
        for (int i = 1; i <= n; i++){
            for (int j = 1; j <= m; j++){
                a[i][j] = '-';
            }
        }
        int arr[m + 1] = {};
        for (int i = 1; i <= n; i++){
            int cnt = 0;
            for (int j = 1; j <= m; j++)
                if (arr[j] < (n - (n % 2 == 0)) / 2)cnt++;
            if (cnt < m / 2 + 1)break;
            else cnt = m / 2 + 1;
            for (int j = 1; j <= m; j++){
                if (arr[j] < (n - (n % 2 == 0)) / 2 and cnt){a[i][j] = '+'; arr[j]++; cnt--;}
            }
        }
    }
    int ans = 0;
    for (int i = 1; i <= n; i++){
        int cnt = 0;
        for (int j = 1; j <= m; j++){
            cnt += (a[i][j] == '+');
        }
        if (cnt > m - cnt)ans++;
    }
    for (int j = 1; j <= m; j++){
        int cnt = 0;
        for (int i = 1; i <= n; i++){
            cnt += (a[i][j] == '-');
        }
        if (cnt > n - cnt)ans++;
    }
    cout << ans << '\n';
    for (int i = 1; i <= n; i++){
        for (int j = 1; j <= m; j++){
            cout << a[i][j];
        }cout << '\n';
    }
}
int32_t main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr); cout.tie(nullptr);
 
    ll T = 1;
    cin >> T;
    while(T--){
        solve();
    }
    return 0;
}

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 348 KB Output is correct

Subtask #3
0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 2 ms 348 KB Output is correct
4 Incorrect 2 ms 348 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 29 ms 1372 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 19 ms 1368 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 0 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 2 ms 348 KB Output is correct
4 Incorrect 2 ms 348 KB Wrong answer in test 5 29: 31 < 32
5 Halted 0 ms 0 KB -