| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 681706 |
2023-01-13T19:43:45 Z |
tvladm2009 |
Bomb (IZhO17_bomb) |
C++14 |
|
342 ms |
110868 KB |
#include <bits/stdc++.h>
using ll = long long;
int const nmax = 2500;
std::string s[5 + nmax];
int dp[5 + nmax], dp_left[5 + nmax][5 + nmax], dp_right[5 + nmax][5 + nmax], dp_up[5 + nmax][5 + nmax], dp_down[5 + nmax][5 + nmax];
int main() {
std::ios_base::sync_with_stdio(0);
std::cin.tie(0);
int n, m;
std::cin >> n >> m;
for(int i = 1;i <= n; i++) {
std::cin >> s[i];
s[i] = "#" + s[i];
}
for(int i = 1;i <= n; i++)
for(int j = 1;j <= m; j++) {
if(s[i][j] == '1') {
dp_left[i][j] = dp_left[i][j - 1] + 1;
dp_up[i][j] = dp_up[i - 1][j] + 1;
}
}
for(int i = n; 1 <= i; i--)
for(int j = m; 1 <= j; j--) {
if(s[i][j] == '1') {
dp_right[i][j] = dp_right[i][j + 1] + 1;
dp_down[i][j] = dp_down[i + 1][j] + 1;
}
}
for(int i = 1;i <= n; i++)
dp[i] = m + 1;
int h = n;
for(int i = 1;i <= n; i++)
for(int j = 1;j <= m; j++)
if(s[i][j] == '1') {
h = std::min(h, dp_up[i][j] + dp_down[i][j] - 1);
dp[1] = std::min(dp[1], dp_left[i][j] + dp_right[i][j] - 1);
}
for(int j = 1;j <= m; j++) {
int cnt = 0, left = 0, right = m + 1;
for(int i = 1;i <= n; i++) {
if(s[i][j] == '1') {
left = std::max(left, j - dp_left[i][j] + 1);
right = std::min(right, j + dp_right[i][j] - 1);
cnt++;
dp[cnt] = std::min(dp[cnt], right - left + 1);
} else {
cnt = 0;
left = 0;
right = m + 1;
}
}
}
for(int j = 1; j <= m; j++) {
int cnt = 0, left = 0, right = m + 1;
for(int i = n; 1 <= i; i--) {
if(s[i][j] == '1') {
left = std::max(left, j - dp_left[i][j] + 1);
right = std::min(right, j + dp_right[i][j] - 1);
cnt++;
dp[cnt] = std::min(dp[cnt], right - left + 1);
} else {
cnt = 0;
left = 0;
right = m + 1;
}
}
}
int result = 0;
for(int i = 1;i <= h; i++) {
if(i > 1)
dp[i] = std::min(dp[i], dp[i - 1]);
result = std::max(result, dp[i] * i);
}
std::cout << result << "\n";
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
340 KB |
Output is correct |
| 2 |
Correct |
1 ms |
596 KB |
Output is correct |
| 3 |
Correct |
19 ms |
40448 KB |
Output is correct |
| 4 |
Correct |
21 ms |
40420 KB |
Output is correct |
| 5 |
Correct |
1 ms |
468 KB |
Output is correct |
| 6 |
Correct |
1 ms |
468 KB |
Output is correct |
| 7 |
Correct |
0 ms |
468 KB |
Output is correct |
| 8 |
Correct |
0 ms |
540 KB |
Output is correct |
| 9 |
Correct |
1 ms |
596 KB |
Output is correct |
| 10 |
Correct |
1 ms |
596 KB |
Output is correct |
| 11 |
Correct |
1 ms |
596 KB |
Output is correct |
| 12 |
Correct |
1 ms |
596 KB |
Output is correct |
| 13 |
Correct |
1 ms |
596 KB |
Output is correct |
| 14 |
Correct |
1 ms |
596 KB |
Output is correct |
| 15 |
Correct |
0 ms |
596 KB |
Output is correct |
| 16 |
Correct |
1 ms |
724 KB |
Output is correct |
| 17 |
Correct |
1 ms |
1492 KB |
Output is correct |
| 18 |
Correct |
1 ms |
980 KB |
Output is correct |
| 19 |
Correct |
1 ms |
1364 KB |
Output is correct |
| 20 |
Correct |
1 ms |
1364 KB |
Output is correct |
| 21 |
Correct |
1 ms |
596 KB |
Output is correct |
| 22 |
Correct |
1 ms |
980 KB |
Output is correct |
| 23 |
Correct |
1 ms |
1368 KB |
Output is correct |
| 24 |
Correct |
1 ms |
1364 KB |
Output is correct |
| 25 |
Correct |
2 ms |
1876 KB |
Output is correct |
| 26 |
Correct |
1 ms |
2132 KB |
Output is correct |
| 27 |
Correct |
5 ms |
6484 KB |
Output is correct |
| 28 |
Correct |
2 ms |
1448 KB |
Output is correct |
| 29 |
Correct |
8 ms |
8404 KB |
Output is correct |
| 30 |
Correct |
5 ms |
6344 KB |
Output is correct |
| 31 |
Correct |
4 ms |
4436 KB |
Output is correct |
| 32 |
Correct |
4 ms |
6184 KB |
Output is correct |
| 33 |
Correct |
7 ms |
8400 KB |
Output is correct |
| 34 |
Correct |
2 ms |
1656 KB |
Output is correct |
| 35 |
Correct |
2 ms |
1876 KB |
Output is correct |
| 36 |
Correct |
10 ms |
11248 KB |
Output is correct |
| 37 |
Correct |
1 ms |
724 KB |
Output is correct |
| 38 |
Correct |
341 ms |
110768 KB |
Output is correct |
| 39 |
Correct |
1 ms |
664 KB |
Output is correct |
| 40 |
Correct |
47 ms |
28064 KB |
Output is correct |
| 41 |
Correct |
1 ms |
724 KB |
Output is correct |
| 42 |
Correct |
2 ms |
2132 KB |
Output is correct |
| 43 |
Correct |
268 ms |
102980 KB |
Output is correct |
| 44 |
Correct |
7 ms |
9940 KB |
Output is correct |
| 45 |
Correct |
253 ms |
105588 KB |
Output is correct |
| 46 |
Correct |
249 ms |
110764 KB |
Output is correct |
| 47 |
Correct |
258 ms |
105756 KB |
Output is correct |
| 48 |
Correct |
252 ms |
110740 KB |
Output is correct |
| 49 |
Correct |
342 ms |
110760 KB |
Output is correct |
| 50 |
Correct |
253 ms |
110760 KB |
Output is correct |
| 51 |
Correct |
252 ms |
110708 KB |
Output is correct |
| 52 |
Correct |
247 ms |
110624 KB |
Output is correct |
| 53 |
Correct |
249 ms |
109388 KB |
Output is correct |
| 54 |
Correct |
196 ms |
84128 KB |
Output is correct |
| 55 |
Correct |
165 ms |
80656 KB |
Output is correct |
| 56 |
Correct |
325 ms |
110768 KB |
Output is correct |
| 57 |
Correct |
158 ms |
70796 KB |
Output is correct |
| 58 |
Correct |
170 ms |
80832 KB |
Output is correct |
| 59 |
Correct |
155 ms |
74664 KB |
Output is correct |
| 60 |
Correct |
219 ms |
94384 KB |
Output is correct |
| 61 |
Correct |
330 ms |
110820 KB |
Output is correct |
| 62 |
Correct |
332 ms |
110744 KB |
Output is correct |
| 63 |
Correct |
332 ms |
110868 KB |
Output is correct |
| 64 |
Correct |
154 ms |
76364 KB |
Output is correct |
| 65 |
Correct |
226 ms |
108604 KB |
Output is correct |
| 66 |
Correct |
226 ms |
102452 KB |
Output is correct |
| 67 |
Correct |
247 ms |
110764 KB |
Output is correct |
| 68 |
Correct |
278 ms |
110864 KB |
Output is correct |
| 69 |
Correct |
152 ms |
70008 KB |
Output is correct |
| 70 |
Correct |
60 ms |
28272 KB |
Output is correct |
| 71 |
Correct |
134 ms |
55980 KB |
Output is correct |
| 72 |
Correct |
168 ms |
66956 KB |
Output is correct |
| 73 |
Correct |
161 ms |
67884 KB |
Output is correct |
| 74 |
Correct |
155 ms |
70992 KB |
Output is correct |
| 75 |
Correct |
160 ms |
74196 KB |
Output is correct |
| 76 |
Correct |
163 ms |
76876 KB |
Output is correct |
| 77 |
Correct |
166 ms |
77848 KB |
Output is correct |
| 78 |
Correct |
174 ms |
78256 KB |
Output is correct |
| 79 |
Correct |
67 ms |
23272 KB |
Output is correct |
| 80 |
Correct |
64 ms |
25880 KB |
Output is correct |
| 81 |
Correct |
85 ms |
26648 KB |
Output is correct |
| 82 |
Correct |
171 ms |
83344 KB |
Output is correct |
| 83 |
Correct |
167 ms |
83672 KB |
Output is correct |
| 84 |
Correct |
46 ms |
13924 KB |
Output is correct |
| 85 |
Correct |
163 ms |
81532 KB |
Output is correct |
| 86 |
Correct |
295 ms |
108492 KB |
Output is correct |
| 87 |
Correct |
156 ms |
79328 KB |
Output is correct |
| 88 |
Correct |
176 ms |
81192 KB |
Output is correct |
| 89 |
Correct |
209 ms |
98636 KB |
Output is correct |
| 90 |
Correct |
97 ms |
56736 KB |
Output is correct |
| 91 |
Correct |
186 ms |
89036 KB |
Output is correct |
| 92 |
Correct |
223 ms |
92336 KB |
Output is correct |
| 93 |
Correct |
281 ms |
106648 KB |
Output is correct |
| 94 |
Correct |
217 ms |
96016 KB |
Output is correct |
| 95 |
Correct |
170 ms |
83780 KB |
Output is correct |
| 96 |
Correct |
168 ms |
83096 KB |
Output is correct |
| 97 |
Correct |
286 ms |
108404 KB |
Output is correct |
| 98 |
Correct |
170 ms |
82712 KB |
Output is correct |
| 99 |
Correct |
208 ms |
95264 KB |
Output is correct |
| 100 |
Correct |
282 ms |
105932 KB |
Output is correct |
