oj.uz

답안 #344068

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
344068 2021-01-05T05:36:02 Z Nurlykhan Red-blue table (IZhO19_stones) C++17
17 / 100
 2000 ms 620 KB 
#include <bits/stdc++.h>

using namespace std;

const int N = 1024;

int t;
int n, m;
bool a[N][N], ans[N][N];

int cnt() {
    int res = 0;
    for (int i = 0; i < n; i++) {
        int s = 0;
        for (int j = 0; j < m; j++) {
            if (a[i][j]) s++;
            else s--;
        }
        if (s > 0) res++;
    }
    for (int j = 0; j < m; j++) {
        int s = 0;
        for (int i = 0; i < n; i++) {
            if (a[i][j]) s++;
            else s--;
        }
        if (s < 0) res++;
    }
    return res;
}

void solve() {
    int mx = 0;
    for (int mask = 0; mask < (1 << (n * m)); mask++) {
        for (int i = 0; i < n; i++) {
            for (int j = 0; j < m; j++) {
                if ((mask >> (i * m + j)) % 2) {
                    a[i][j] = 1;
                } else {
                    a[i][j] = 0;
                }
            }
        }
        int cur = cnt();
        if (cur > mx) {
            mx = cur;
            for (int i = 0; i < n; i++) {
                for (int j = 0; j < m; j++) {
                    ans[i][j] = a[i][j];
                }
            }
        }
    }
    printf("%d\n", mx);
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < m; j++) {
            if (ans[i][j])
                printf("+");
            else
                printf("-");
        }
        printf("\n");
    }
}

int main() {
    scanf("%d", &t);
    while (t--) {
        scanf("%d%d", &n, &m);
        solve();
    }

    return 0;
}

Compilation message

stones.cpp: In function 'int main()':
stones.cpp:67:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   67 |     scanf("%d", &t);
      |     ~~~~~^~~~~~~~~~
stones.cpp:69:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   69 |         scanf("%d%d", &n, &m);
      |         ~~~~~^~~~~~~~~~~~~~~~

Subtask #1
17.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 4 ms 364 KB Output is correct

Subtask #2
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 2063 ms 364 KB Time limit exceeded

Subtask #3
0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 4 ms 364 KB Output is correct
3 Execution timed out 2063 ms 364 KB Time limit exceeded

Subtask #4
0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 2083 ms 492 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 2076 ms 620 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #6
0 / 31.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 4 ms 364 KB Output is correct
3 Execution timed out 2063 ms 364 KB Time limit exceeded