#include <bits/stdc++.h>
using namespace std;
int main() {
ios::sync_with_stdio(false);
cin.tie(0);
int n, m;
cin >> n >> m;
vector<string> s(n);
for (int i = 0; i < n; i++) {
cin >> s[i];
}
vector<vector<int>> U(n, vector<int>(m));
for (int i = 0; i < n; i++) {
for (int j = 0; j < m; j++) {
if (s[i][j] == '0') {
continue;
}
U[i][j] = (i == 0 || s[i - 1][j] == '0' ? i : U[i - 1][j]);
}
}
vector<vector<int>> D(n, vector<int>(m));
for (int i = n - 1; i >= 0; i--) {
for (int j = 0; j < m; j++) {
if (s[i][j] == '0') {
continue;
}
D[i][j] = (i == n - 1 || s[i + 1][j] == '0' ? i : D[i + 1][j]);
}
}
vector<vector<int>> len(n, vector<int>(m));
for (int i = 0; i < n; i++) {
for (int j = 0; j < m; j++) {
if (s[i][j] == '0') {
continue;
}
len[i][j] = D[i][j] - U[i][j] + 1;
}
}
vector<int> mx(m + 1, n);
for (int i = 0; i < n; i++) {
vector<int> stk;
for (int j = 0; j < m; j++) {
if (s[i][j] == '0') {
while (!stk.empty()) {
int l = j - stk.back();
mx[l] = min(mx[l], len[i][stk.back()]);
stk.pop_back();
}
continue;
}
while (!stk.empty() && len[i][stk.back()] >= len[i][j]) {
int l = j - stk.back() + 1;
mx[l] = min(mx[l], len[i][j]);
stk.pop_back();
}
if (!stk.empty()) {
int l = j - stk.back() + 1;
mx[l] = min(mx[l], len[i][stk.back()]);
}
stk.push_back(j);
}
while (!stk.empty()) {
int l = m - stk.back();
mx[l] = min(mx[l], len[i][stk.back()]);
stk.pop_back();
}
}
for (int i = 0; i < n; i++) {
vector<int> stk;
for (int j = m - 1; j >= 0; j--) {
if (s[i][j] == '0') {
while (!stk.empty()) {
int l = stk.back() - j;
mx[l] = min(mx[l], len[i][stk.back()]);
stk.pop_back();
}
continue;
}
while (!stk.empty() && len[i][stk.back()] >= len[i][j]) {
int l = stk.back() - j + 1;
mx[l] = min(mx[l], len[i][j]);
stk.pop_back();
}
if (!stk.empty()) {
int l = stk.back() - j + 1;
mx[l] = min(mx[l], len[i][stk.back()]);
}
stk.push_back(j);
}
while (!stk.empty()) {
int l = stk.back() + 1;
mx[l] = min(mx[l], len[i][stk.back()]);
stk.pop_back();
}
}
int width = m;
for (int i = 0; i < n; i++) {
for (int j = 0; j < m; j++) {
if (s[i][j] == '0') {
continue;
}
int ptr = j;
while (ptr + 1 < m && s[i][ptr + 1] == '0') {
ptr += 1;
}
width = min(width, ptr - j + 1);
j = ptr;
}
}
cout << width << '\n';
return 0;
for (int i = 1; i < m; i++) {
mx[i + 1] = min(mx[i + 1], mx[i]);
}
int res = n * m;
for (int i = 1; i <= width; i++) {
res = min(res, mx[i] * i);
}
cout << res << '\n';
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
0 ms |
600 KB |
Output isn't correct |
2 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
3 |
Incorrect |
1 ms |
860 KB |
Output isn't correct |
4 |
Incorrect |
1 ms |
860 KB |
Output isn't correct |
5 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
6 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
7 |
Incorrect |
0 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 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
11 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
12 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
13 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
14 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
15 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
16 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
17 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
18 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
19 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
20 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
21 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
22 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
23 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
24 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
25 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
26 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
27 |
Incorrect |
2 ms |
1372 KB |
Output isn't correct |
28 |
Incorrect |
2 ms |
1884 KB |
Output isn't correct |
29 |
Incorrect |
3 ms |
1880 KB |
Output isn't correct |
30 |
Incorrect |
5 ms |
2904 KB |
Output isn't correct |
31 |
Incorrect |
3 ms |
2392 KB |
Output isn't correct |
32 |
Incorrect |
3 ms |
2396 KB |
Output isn't correct |
33 |
Incorrect |
4 ms |
2908 KB |
Output isn't correct |
34 |
Incorrect |
2 ms |
1372 KB |
Output isn't correct |
35 |
Incorrect |
5 ms |
2908 KB |
Output isn't correct |
36 |
Incorrect |
5 ms |
3096 KB |
Output isn't correct |
37 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
38 |
Incorrect |
120 ms |
80608 KB |
Output isn't correct |
39 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
40 |
Incorrect |
16 ms |
10448 KB |
Output isn't correct |
41 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
42 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
43 |
Incorrect |
125 ms |
80724 KB |
Output isn't correct |
44 |
Incorrect |
4 ms |
3108 KB |
Output isn't correct |
45 |
Incorrect |
117 ms |
80604 KB |
Output isn't correct |
46 |
Incorrect |
108 ms |
80844 KB |
Output isn't correct |
47 |
Incorrect |
133 ms |
80720 KB |
Output isn't correct |
48 |
Incorrect |
121 ms |
80724 KB |
Output isn't correct |
49 |
Incorrect |
140 ms |
80772 KB |
Output isn't correct |
50 |
Incorrect |
125 ms |
80844 KB |
Output isn't correct |
51 |
Incorrect |
116 ms |
80720 KB |
Output isn't correct |
52 |
Incorrect |
120 ms |
80844 KB |
Output isn't correct |
53 |
Incorrect |
113 ms |
80848 KB |
Output isn't correct |
54 |
Incorrect |
105 ms |
80844 KB |
Output isn't correct |
55 |
Incorrect |
105 ms |
80724 KB |
Output isn't correct |
56 |
Incorrect |
122 ms |
80720 KB |
Output isn't correct |
57 |
Incorrect |
100 ms |
80720 KB |
Output isn't correct |
58 |
Incorrect |
104 ms |
80844 KB |
Output isn't correct |
59 |
Incorrect |
102 ms |
80844 KB |
Output isn't correct |
60 |
Incorrect |
111 ms |
80880 KB |
Output isn't correct |
61 |
Incorrect |
133 ms |
80724 KB |
Output isn't correct |
62 |
Incorrect |
130 ms |
80608 KB |
Output isn't correct |
63 |
Incorrect |
133 ms |
80692 KB |
Output isn't correct |
64 |
Incorrect |
104 ms |
80840 KB |
Output isn't correct |
65 |
Incorrect |
118 ms |
80636 KB |
Output isn't correct |
66 |
Incorrect |
107 ms |
80720 KB |
Output isn't correct |
67 |
Incorrect |
121 ms |
80720 KB |
Output isn't correct |
68 |
Incorrect |
129 ms |
80720 KB |
Output isn't correct |
69 |
Incorrect |
103 ms |
80724 KB |
Output isn't correct |
70 |
Incorrect |
60 ms |
51792 KB |
Output isn't correct |
71 |
Incorrect |
96 ms |
80844 KB |
Output isn't correct |
72 |
Incorrect |
99 ms |
80800 KB |
Output isn't correct |
73 |
Incorrect |
105 ms |
80724 KB |
Output isn't correct |
74 |
Incorrect |
100 ms |
80720 KB |
Output isn't correct |
75 |
Incorrect |
108 ms |
80976 KB |
Output isn't correct |
76 |
Incorrect |
104 ms |
80844 KB |
Output isn't correct |
77 |
Incorrect |
119 ms |
80724 KB |
Output isn't correct |
78 |
Incorrect |
110 ms |
80704 KB |
Output isn't correct |
79 |
Incorrect |
97 ms |
80964 KB |
Output isn't correct |
80 |
Incorrect |
91 ms |
80856 KB |
Output isn't correct |
81 |
Incorrect |
90 ms |
80724 KB |
Output isn't correct |
82 |
Incorrect |
104 ms |
80724 KB |
Output isn't correct |
83 |
Incorrect |
103 ms |
80844 KB |
Output isn't correct |
84 |
Incorrect |
98 ms |
81192 KB |
Output isn't correct |
85 |
Incorrect |
102 ms |
80844 KB |
Output isn't correct |
86 |
Incorrect |
119 ms |
80844 KB |
Output isn't correct |
87 |
Incorrect |
100 ms |
80700 KB |
Output isn't correct |
88 |
Incorrect |
104 ms |
80724 KB |
Output isn't correct |
89 |
Incorrect |
108 ms |
80636 KB |
Output isn't correct |
90 |
Incorrect |
64 ms |
51920 KB |
Output isn't correct |
91 |
Incorrect |
103 ms |
80724 KB |
Output isn't correct |
92 |
Incorrect |
107 ms |
80840 KB |
Output isn't correct |
93 |
Incorrect |
121 ms |
80724 KB |
Output isn't correct |
94 |
Incorrect |
107 ms |
80720 KB |
Output isn't correct |
95 |
Incorrect |
102 ms |
80844 KB |
Output isn't correct |
96 |
Incorrect |
105 ms |
80944 KB |
Output isn't correct |
97 |
Incorrect |
122 ms |
80848 KB |
Output isn't correct |
98 |
Incorrect |
103 ms |
80720 KB |
Output isn't correct |
99 |
Incorrect |
106 ms |
80844 KB |
Output isn't correct |
100 |
Incorrect |
121 ms |
80640 KB |
Output isn't correct |