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답안 #38393

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
38393 2018-01-04T05:02:23 Z Talant Bomb (IZhO17_bomb) C++14
2 / 100
 1000 ms 56992 KB 
#include <bits/stdc++.h>

#define fr first
#define sc second
#define OK puts("OK");
#define pb push_back
#define mk make_pair

using namespace std;

typedef long long ll;

const int inf = (int)1e9 + 7;
const int N = (int)1e6 + 10;

int n,m;
char a[2501][2501];
int t[2501][2501];
int c[2501][2501];
int mx,mn = inf,mn1 = inf;

bool check (int h,int w) {
        for (int i = h; i <= n;) {
                for (int j = w; j <= m;) {
                        if (c[i][j] - c[i - h][j] - c[i][j - w] + c[i - h][j - w] == (h * w)) {
                                for (int l = i - h + 1; l <= i; l ++) {
                                        for (int r = j - w + 1; r <= j; r ++) {
                                                t[l][r] = -1;
                                        }
                                }
                                if (j + w > m)
                                        j = w,i += h;
                                else
                                        j += w;
                        }
                        else
                                j ++;
                }
                i ++;
        }
        int f = 0;
        for (int i = 1; i <= n; i ++) {
                for (int j = 1; j <= m; j ++) {
                        if (t[i][j] == 1)
                                f = 1;
                        if (t[i][j] == -1)
                                t[i][j] = 1;
                }
        }
        if (f)
                return false;
        return true;
}
int main () {
        cin >> n >> m;

        for (int i = 1; i <= n; i ++)
                scanf ("%s", a[i] + 1);

        for (int i = 1; i <= n; i ++) {
                int cnt = 0;
                for (int j = 1; j <= m; j ++) {
                        t[i][j] = int(a[i][j] - '0');
                        c[i][j] = t[i][j];
                        if (c[i][j] == 1)
                                cnt ++;
                        else {
                                if (cnt > 0)
                                mn = min(mn,cnt);
                        cnt = 0;
                        }
                }
                if (cnt > 0)
                        mn = min(mn,cnt);
        }
        for (int i = 1; i <= m; i ++) {
                int cnt = 0;
                for (int j = 1; j <= n; j ++) {
                        if (c[j][i] == 1)
                                cnt ++;
                        else {
                                if (cnt > 0)
                                mn1 = min(mn1,cnt);
                        cnt = 0;
                        }
                }
                if (cnt > 0)
                        mn1 = min(mn1,cnt);
        }
        if (mn == inf)
                mn = 0;
        if (mn1 == inf)
                mn1 = 0;

        for (int i = 1; i <= n; i ++)
                for (int j = 2; j <= m; j ++)
                        c[i][j] += c[i][j - 1];

        for (int i = 2; i <= n; i ++)
                for (int j = 1; j <= m; j ++)
                        c[i][j] += c[i - 1][j];

        for (int i = 1; i <= mn1; i ++) {
                for (int j = 1; j <= mn; j ++) {
                         if (check(i,j))
                                mx = max(mx,i * j);
                }
        }
        cout << mx << endl;
}

Compilation message

bomb.cpp: In function 'int main()':
bomb.cpp:58:39: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
                 scanf ("%s", a[i] + 1);
                                       ^

Subtask #1
2.0 / 100.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 0 ms 56992 KB Output isn't correct
2 Incorrect 0 ms 56992 KB Output isn't correct
3 Incorrect 6 ms 56992 KB Output isn't correct
4 Incorrect 6 ms 56992 KB Output isn't correct
5 Incorrect 0 ms 56992 KB Output isn't correct
6 Incorrect 0 ms 56992 KB Output isn't correct
7 Incorrect 0 ms 56992 KB Output isn't correct
8 Incorrect 0 ms 56992 KB Output isn't correct
9 Incorrect 0 ms 56992 KB Output isn't correct
10 Incorrect 0 ms 56992 KB Output isn't correct
11 Incorrect 0 ms 56992 KB Output isn't correct
12 Correct 0 ms 56992 KB Output is correct
13 Incorrect 0 ms 56992 KB Output isn't correct
14 Correct 0 ms 56992 KB Output is correct
15 Incorrect 0 ms 56992 KB Output isn't correct
16 Incorrect 0 ms 56992 KB Output isn't correct
17 Incorrect 0 ms 56992 KB Output isn't correct
18 Incorrect 0 ms 56992 KB Output isn't correct
19 Incorrect 9 ms 56992 KB Output isn't correct
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21 Incorrect 0 ms 56992 KB Output isn't correct
22 Incorrect 0 ms 56992 KB Output isn't correct
23 Incorrect 29 ms 56992 KB Output isn't correct
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25 Incorrect 56 ms 56992 KB Output isn't correct
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27 Incorrect 3 ms 56992 KB Output isn't correct
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29 Execution timed out 1000 ms 56992 KB Execution timed out
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35 Execution timed out 1000 ms 56992 KB Execution timed out
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37 Incorrect 0 ms 56992 KB Output isn't correct
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