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Submission #1102140

# Submission time Handle Problem Language Result Execution time Memory
1102140 2024-10-17T14:30:03 Z rembocoder Red-blue table (IZhO19_stones) C++17
100 / 100
 8 ms 3368 KB 
#include <bits/stdc++.h>

using namespace std;

#define int int64_t

const int mod = 1e9 + 7;
const int inf = 2e18;

int32_t main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
    int ttt;
    cin >> ttt;
    while (ttt--) {
        int n, m;
        cin >> n >> m;
        bool inv = false;
        if (n > m) {
            inv = true;
            swap(n, m);
        }
        vector<string> a(n, string(m, '-'));
        int plus_in_col = (n - 1) / 2;
        int pos_rows = (plus_in_col * m) / (m / 2 + 1);
        int i = 0;
        for (int j = 0; j < m; j++) {
            for (int q = 0; q < plus_in_col; q++) {
                a[i][j] = '+';
                i = (i + 1) % pos_rows;
            }
        }
        cout << pos_rows + m << '\n';
        if (inv) {
            swap(n, m);
            vector<string> b(n, string(m, '-'));
            for (int i = 0; i < n; i++) {
                for (int j = 0; j < m; j++) {
                    b[i][j] = a[j][i] == '-' ? '+' : '-';
                }
            }
            a = b;
        }
        for (int i = 0; i < n; i++) {
            cout << a[i] << '\n';
        }
    }
}

Subtask #1
17.0 / 17.0

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

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 508 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 508 KB Output is correct
4 Correct 1 ms 504 KB Output is correct

Subtask #4
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 1376 KB Output is correct
2 Correct 5 ms 2132 KB Output is correct
3 Correct 7 ms 3368 KB Output is correct

Subtask #5
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 1376 KB Output is correct
2 Correct 4 ms 1632 KB Output is correct
3 Correct 4 ms 1252 KB Output is correct

Subtask #6
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 508 KB Output is correct
4 Correct 1 ms 504 KB Output is correct
5 Correct 8 ms 1376 KB Output is correct
6 Correct 5 ms 2132 KB Output is correct
7 Correct 7 ms 3368 KB Output is correct
8 Correct 4 ms 1376 KB Output is correct
9 Correct 4 ms 1632 KB Output is correct
10 Correct 4 ms 1252 KB Output is correct
11 Correct 3 ms 596 KB Output is correct
12 Correct 5 ms 2620 KB Output is correct
13 Correct 5 ms 2064 KB Output is correct
14 Correct 4 ms 1336 KB Output is correct
15 Correct 4 ms 2388 KB Output is correct
16 Correct 3 ms 1740 KB Output is correct
17 Correct 3 ms 1620 KB Output is correct