#include <bits/stdc++.h>
using namespace std;
const int INF = 1e9;
int main()
{
cin.tie(0)->sync_with_stdio(0);
int n, m;
cin >> n >> m;
vector<string> g(n);
for (int i = 0; i < n; i++)
{
cin >> g[i];
}
vector<int> res(n, INF);
for (int tt = 0; tt < 2; tt++)
{
vector<vector<int>> rr(n, vector<int>(m));
for (int i = 0; i < n; i++)
{
int cur = m;
for (int j = m - 1; j >= 0; j--)
{
if (g[i][j] == '0')
{
cur = j;
}
rr[i][j] = cur;
}
}
for (int i = 0; i < n; i++)
{
for (int j = 0; j < m; j++)
{
if (g[i][j] == '1' && (i == 0 || g[i - 1][j] == '0') && (j == 0 || g[i][j - 1] == '0'))
{
int k = i, cur = INF;
while (k < n && k - i < res.size() && g[k][j] == '1')
{
cur = min(cur, rr[k][j] - j);
res[k - i] = min(res[k - i], cur);
k++;
}
res.resize(k - i);
}
}
}
reverse(g.begin(), g.end());
for (int i = 0; i < n; i++)
{
reverse(g[i].begin(), g[i].end());
}
}
int ans = 0;
for (int i = 0; i < res.size(); i++)
{
ans = max(ans, (i + 1) * res[i]);
}
cout << ans << '\n';
return 0;
}
Compilation message
bomb.cpp: In function 'int main()':
bomb.cpp:38:43: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
38 | while (k < n && k - i < res.size() && g[k][j] == '1')
| ~~~~~~^~~~~~~~~~~~
bomb.cpp:55:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
55 | for (int i = 0; i < res.size(); i++)
| ~~^~~~~~~~~~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
1 ms |
604 KB |
Output is correct |
4 |
Correct |
1 ms |
604 KB |
Output is correct |
5 |
Correct |
1 ms |
344 KB |
Output is correct |
6 |
Correct |
0 ms |
364 KB |
Output is correct |
7 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
8 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
9 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
12 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
456 KB |
Output is correct |
15 |
Incorrect |
1 ms |
344 KB |
Output isn't correct |
16 |
Correct |
0 ms |
420 KB |
Output is correct |
17 |
Correct |
1 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
344 KB |
Output is correct |
19 |
Incorrect |
0 ms |
344 KB |
Output isn't correct |
20 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
21 |
Correct |
0 ms |
348 KB |
Output is correct |
22 |
Correct |
0 ms |
344 KB |
Output is correct |
23 |
Incorrect |
1 ms |
344 KB |
Output isn't correct |
24 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
25 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
26 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
27 |
Incorrect |
1 ms |
884 KB |
Output isn't correct |
28 |
Incorrect |
1 ms |
1124 KB |
Output isn't correct |
29 |
Incorrect |
2 ms |
1116 KB |
Output isn't correct |
30 |
Incorrect |
2 ms |
1524 KB |
Output isn't correct |
31 |
Incorrect |
2 ms |
1156 KB |
Output isn't correct |
32 |
Incorrect |
2 ms |
1384 KB |
Output isn't correct |
33 |
Incorrect |
2 ms |
1628 KB |
Output isn't correct |
34 |
Incorrect |
1 ms |
980 KB |
Output isn't correct |
35 |
Incorrect |
2 ms |
1628 KB |
Output isn't correct |
36 |
Incorrect |
2 ms |
1620 KB |
Output isn't correct |
37 |
Correct |
1 ms |
348 KB |
Output is correct |
38 |
Correct |
58 ms |
37780 KB |
Output is correct |
39 |
Correct |
0 ms |
344 KB |
Output is correct |
40 |
Incorrect |
8 ms |
5108 KB |
Output isn't correct |
41 |
Correct |
1 ms |
532 KB |
Output is correct |
42 |
Correct |
0 ms |
348 KB |
Output is correct |
43 |
Correct |
67 ms |
37760 KB |
Output is correct |
44 |
Correct |
2 ms |
1624 KB |
Output is correct |
45 |
Correct |
61 ms |
37724 KB |
Output is correct |
46 |
Correct |
62 ms |
37772 KB |
Output is correct |
47 |
Correct |
61 ms |
37716 KB |
Output is correct |
48 |
Correct |
54 ms |
37848 KB |
Output is correct |
49 |
Incorrect |
57 ms |
37896 KB |
Output isn't correct |
50 |
Incorrect |
55 ms |
37816 KB |
Output isn't correct |
51 |
Incorrect |
55 ms |
37716 KB |
Output isn't correct |
52 |
Correct |
55 ms |
37724 KB |
Output is correct |
53 |
Incorrect |
53 ms |
37716 KB |
Output isn't correct |
54 |
Correct |
55 ms |
38148 KB |
Output is correct |
55 |
Incorrect |
56 ms |
37716 KB |
Output isn't correct |
56 |
Correct |
68 ms |
37852 KB |
Output is correct |
57 |
Incorrect |
58 ms |
37716 KB |
Output isn't correct |
58 |
Correct |
57 ms |
37724 KB |
Output is correct |
59 |
Correct |
58 ms |
37888 KB |
Output is correct |
60 |
Incorrect |
57 ms |
37848 KB |
Output isn't correct |
61 |
Incorrect |
60 ms |
37848 KB |
Output isn't correct |
62 |
Incorrect |
63 ms |
37764 KB |
Output isn't correct |
63 |
Incorrect |
60 ms |
37712 KB |
Output isn't correct |
64 |
Incorrect |
60 ms |
37716 KB |
Output isn't correct |
65 |
Correct |
60 ms |
37712 KB |
Output is correct |
66 |
Incorrect |
58 ms |
37716 KB |
Output isn't correct |
67 |
Correct |
59 ms |
37712 KB |
Output is correct |
68 |
Incorrect |
63 ms |
37844 KB |
Output isn't correct |
69 |
Correct |
57 ms |
37720 KB |
Output is correct |
70 |
Incorrect |
35 ms |
24400 KB |
Output isn't correct |
71 |
Incorrect |
57 ms |
37716 KB |
Output isn't correct |
72 |
Incorrect |
57 ms |
38228 KB |
Output isn't correct |
73 |
Incorrect |
55 ms |
37824 KB |
Output isn't correct |
74 |
Incorrect |
59 ms |
37712 KB |
Output isn't correct |
75 |
Incorrect |
56 ms |
37712 KB |
Output isn't correct |
76 |
Incorrect |
56 ms |
37836 KB |
Output isn't correct |
77 |
Incorrect |
56 ms |
37712 KB |
Output isn't correct |
78 |
Incorrect |
57 ms |
37844 KB |
Output isn't correct |
79 |
Incorrect |
56 ms |
37836 KB |
Output isn't correct |
80 |
Incorrect |
54 ms |
37712 KB |
Output isn't correct |
81 |
Incorrect |
54 ms |
37896 KB |
Output isn't correct |
82 |
Incorrect |
55 ms |
37884 KB |
Output isn't correct |
83 |
Incorrect |
55 ms |
37896 KB |
Output isn't correct |
84 |
Incorrect |
54 ms |
37848 KB |
Output isn't correct |
85 |
Incorrect |
55 ms |
37716 KB |
Output isn't correct |
86 |
Incorrect |
62 ms |
37812 KB |
Output isn't correct |
87 |
Incorrect |
56 ms |
37844 KB |
Output isn't correct |
88 |
Incorrect |
60 ms |
38044 KB |
Output isn't correct |
89 |
Incorrect |
55 ms |
37716 KB |
Output isn't correct |
90 |
Incorrect |
35 ms |
24404 KB |
Output isn't correct |
91 |
Incorrect |
59 ms |
37712 KB |
Output isn't correct |
92 |
Incorrect |
54 ms |
37716 KB |
Output isn't correct |
93 |
Incorrect |
62 ms |
37848 KB |
Output isn't correct |
94 |
Incorrect |
58 ms |
37716 KB |
Output isn't correct |
95 |
Incorrect |
52 ms |
37716 KB |
Output isn't correct |
96 |
Incorrect |
58 ms |
37844 KB |
Output isn't correct |
97 |
Incorrect |
67 ms |
37780 KB |
Output isn't correct |
98 |
Incorrect |
59 ms |
38392 KB |
Output isn't correct |
99 |
Incorrect |
61 ms |
37848 KB |
Output isn't correct |
100 |
Incorrect |
65 ms |
37712 KB |
Output isn't correct |