#include<bits/stdc++.h>
using namespace std;
#define pii pair<int ,int>
#define pb push_back
const int maxN = 2600;
int n, m;
int a[maxN][maxN];
int d[maxN][maxN];
int c[maxN][maxN];
string s;
int cnt[maxN];
int getDSum(int x1, int y1, int x2, int y2) {
if (x2 > n || y2 > m) return 0;
return d[x2][y2] + d[x1 - 1][y1 - 1] - d[x1 - 1][y2] - d[x2][y1 - 1];
}
int heuristic1() {
vector<pii> gornji;
for (int i = 1; i<=n; i++) {
for (int j = 1; j<=m; j++) {
if (a[i - 1][j] == 0 && a[i][j - 1] == 0 && a[i][j] == 1) gornji.pb({i, j});
}
}
for (int i = 1; i <=n; i++) {
cnt[i] = m;
}
for (int i = 0; i < gornji.size(); i++) {
for (int len = 1; len <= n; len++) {
int width = m;
int x = gornji[i].first;
int y = gornji[i].second;
while ((width > 0 || cnt[len]) && getDSum(x, y, x + len - 1, y + width - 1) != len * width) width--;
cnt[len] = min(cnt[len], width);
}
}
int ans = 0;
for (int i = 1; i<=n; i++) {
ans = max(ans, i * cnt[i]);
}
return ans;
}
int main() {
cin >> n >> m;
for (int i = 1; i <=n; i++) {
cin >> s;
for (int j = 0; j < m; j++) {
a[i][j + 1] = s[j] - '0';
}
}
for (int i = 1; i <= n; i++) {
for (int j = 1; j<=m; j++) {
d[i][j] = d[i - 1][j] + d[i][j - 1] + a[i][j] - d[i - 1][j - 1];
}
}
cout << heuristic1() << endl;
}
Compilation message
bomb.cpp: In function 'int heuristic1()':
bomb.cpp:37:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
37 | for (int i = 0; i < gornji.size(); i++) {
| ~~^~~~~~~~~~~~~~~
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
212 KB |
Output is correct |
| 2 |
Correct |
0 ms |
468 KB |
Output is correct |
| 3 |
Correct |
10 ms |
20404 KB |
Output is correct |
| 4 |
Correct |
11 ms |
20388 KB |
Output is correct |
| 5 |
Correct |
1 ms |
312 KB |
Output is correct |
| 6 |
Correct |
0 ms |
312 KB |
Output is correct |
| 7 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
| 8 |
Incorrect |
1 ms |
468 KB |
Output isn't correct |
| 9 |
Incorrect |
1 ms |
444 KB |
Output isn't correct |
| 10 |
Correct |
1 ms |
340 KB |
Output is correct |
| 11 |
Incorrect |
1 ms |
468 KB |
Output isn't correct |
| 12 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
| 13 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
| 14 |
Correct |
1 ms |
340 KB |
Output is correct |
| 15 |
Incorrect |
1 ms |
468 KB |
Output isn't correct |
| 16 |
Correct |
1 ms |
468 KB |
Output is correct |
| 17 |
Correct |
2 ms |
824 KB |
Output is correct |
| 18 |
Correct |
1 ms |
828 KB |
Output is correct |
| 19 |
Incorrect |
2 ms |
1108 KB |
Output isn't correct |
| 20 |
Incorrect |
1 ms |
1108 KB |
Output isn't correct |
| 21 |
Correct |
1 ms |
724 KB |
Output is correct |
| 22 |
Correct |
1 ms |
980 KB |
Output is correct |
| 23 |
Incorrect |
1 ms |
1220 KB |
Output isn't correct |
| 24 |
Incorrect |
1 ms |
980 KB |
Output isn't correct |
| 25 |
Incorrect |
1 ms |
1108 KB |
Output isn't correct |
| 26 |
Incorrect |
1 ms |
1216 KB |
Output isn't correct |
| 27 |
Incorrect |
4 ms |
3300 KB |
Output isn't correct |
| 28 |
Incorrect |
7 ms |
3540 KB |
Output isn't correct |
| 29 |
Incorrect |
18 ms |
4500 KB |
Output isn't correct |
| 30 |
Incorrect |
8 ms |
5316 KB |
Output isn't correct |
| 31 |
Incorrect |
8 ms |
4416 KB |
Output isn't correct |
| 32 |
Incorrect |
9 ms |
4820 KB |
Output isn't correct |
| 33 |
Incorrect |
8 ms |
5700 KB |
Output isn't correct |
| 34 |
Incorrect |
7 ms |
3796 KB |
Output isn't correct |
| 35 |
Incorrect |
9 ms |
5628 KB |
Output isn't correct |
| 36 |
Incorrect |
8 ms |
5632 KB |
Output isn't correct |
| 37 |
Incorrect |
0 ms |
468 KB |
Output isn't correct |
| 38 |
Correct |
172 ms |
54924 KB |
Output is correct |
| 39 |
Incorrect |
1 ms |
468 KB |
Output isn't correct |
| 40 |
Incorrect |
27 ms |
14028 KB |
Output isn't correct |
| 41 |
Correct |
1 ms |
468 KB |
Output is correct |
| 42 |
Correct |
2 ms |
1092 KB |
Output is correct |
| 43 |
Execution timed out |
1100 ms |
54908 KB |
Time limit exceeded |
| 44 |
Correct |
29 ms |
5716 KB |
Output is correct |
| 45 |
Execution timed out |
1026 ms |
55032 KB |
Time limit exceeded |
| 46 |
Execution timed out |
1084 ms |
55244 KB |
Time limit exceeded |
| 47 |
Execution timed out |
1008 ms |
55696 KB |
Time limit exceeded |
| 48 |
Execution timed out |
1050 ms |
55864 KB |
Time limit exceeded |
| 49 |
Incorrect |
180 ms |
55804 KB |
Output isn't correct |
| 50 |
Execution timed out |
1050 ms |
55632 KB |
Time limit exceeded |
| 51 |
Execution timed out |
1020 ms |
55468 KB |
Time limit exceeded |
| 52 |
Execution timed out |
1052 ms |
55784 KB |
Time limit exceeded |
| 53 |
Execution timed out |
1045 ms |
55544 KB |
Time limit exceeded |
| 54 |
Execution timed out |
1069 ms |
55528 KB |
Time limit exceeded |
| 55 |
Execution timed out |
1024 ms |
55416 KB |
Time limit exceeded |
| 56 |
Correct |
535 ms |
55368 KB |
Output is correct |
| 57 |
Execution timed out |
1072 ms |
55636 KB |
Time limit exceeded |
| 58 |
Execution timed out |
1026 ms |
55056 KB |
Time limit exceeded |
| 59 |
Execution timed out |
1031 ms |
54988 KB |
Time limit exceeded |
| 60 |
Incorrect |
176 ms |
54816 KB |
Output isn't correct |
| 61 |
Incorrect |
171 ms |
54876 KB |
Output isn't correct |
| 62 |
Incorrect |
177 ms |
54836 KB |
Output isn't correct |
| 63 |
Incorrect |
168 ms |
54580 KB |
Output isn't correct |
| 64 |
Incorrect |
172 ms |
54556 KB |
Output isn't correct |
| 65 |
Execution timed out |
1039 ms |
55380 KB |
Time limit exceeded |
| 66 |
Incorrect |
300 ms |
55388 KB |
Output isn't correct |
| 67 |
Execution timed out |
1032 ms |
55056 KB |
Time limit exceeded |
| 68 |
Execution timed out |
1014 ms |
54092 KB |
Time limit exceeded |
| 69 |
Execution timed out |
1008 ms |
54008 KB |
Time limit exceeded |
| 70 |
Incorrect |
117 ms |
43496 KB |
Output isn't correct |
| 71 |
Incorrect |
174 ms |
54384 KB |
Output isn't correct |
| 72 |
Incorrect |
180 ms |
54252 KB |
Output isn't correct |
| 73 |
Incorrect |
175 ms |
54228 KB |
Output isn't correct |
| 74 |
Incorrect |
177 ms |
54936 KB |
Output isn't correct |
| 75 |
Incorrect |
174 ms |
54432 KB |
Output isn't correct |
| 76 |
Incorrect |
176 ms |
54304 KB |
Output isn't correct |
| 77 |
Incorrect |
173 ms |
54324 KB |
Output isn't correct |
| 78 |
Incorrect |
175 ms |
54376 KB |
Output isn't correct |
| 79 |
Incorrect |
174 ms |
54976 KB |
Output isn't correct |
| 80 |
Incorrect |
176 ms |
54280 KB |
Output isn't correct |
| 81 |
Incorrect |
173 ms |
54848 KB |
Output isn't correct |
| 82 |
Incorrect |
175 ms |
55252 KB |
Output isn't correct |
| 83 |
Incorrect |
174 ms |
55664 KB |
Output isn't correct |
| 84 |
Incorrect |
173 ms |
55988 KB |
Output isn't correct |
| 85 |
Incorrect |
180 ms |
55808 KB |
Output isn't correct |
| 86 |
Incorrect |
175 ms |
56380 KB |
Output isn't correct |
| 87 |
Incorrect |
178 ms |
55952 KB |
Output isn't correct |
| 88 |
Incorrect |
176 ms |
55404 KB |
Output isn't correct |
| 89 |
Incorrect |
177 ms |
55136 KB |
Output isn't correct |
| 90 |
Incorrect |
120 ms |
44392 KB |
Output isn't correct |
| 91 |
Incorrect |
179 ms |
55180 KB |
Output isn't correct |
| 92 |
Incorrect |
176 ms |
54348 KB |
Output isn't correct |
| 93 |
Incorrect |
176 ms |
54332 KB |
Output isn't correct |
| 94 |
Incorrect |
182 ms |
54268 KB |
Output isn't correct |
| 95 |
Incorrect |
170 ms |
54456 KB |
Output isn't correct |
| 96 |
Incorrect |
175 ms |
54564 KB |
Output isn't correct |
| 97 |
Incorrect |
174 ms |
54396 KB |
Output isn't correct |
| 98 |
Incorrect |
173 ms |
55372 KB |
Output isn't correct |
| 99 |
Incorrect |
182 ms |
54672 KB |
Output isn't correct |
| 100 |
Incorrect |
174 ms |
55008 KB |
Output isn't correct |
