| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 917917 |
2024-01-29T05:24:35 Z |
SeDunion |
Bomb (IZhO17_bomb) |
C++17 |
|
446 ms |
80428 KB |
#include <iostream>
using namespace std;
const int N = 2505;
int a[N][N], ans[N];
int L[N][N], R[N][N];
int main() {
int n, m;
cin >> n >> m;
for (int i = 1 ; i <= n ; ++ i) {
for (int j = 1 ; j <= m ; ++ j) {
char c;
cin >> c;
a[i][j] = (c - '0');
}
}
for (int i = 1 ; i <= n ; ++ i) {
ans[i] = m;
}
int lim = n;
for (int rep = 0 ; rep < 2 ; ++ rep) {
for (int i = 1 ; i <= n ; ++ i) {
for (int j = 1 ; j <= m ; ++ j) {
if (a[i][j]) L[i][j] = L[i][j - 1] + 1;
else L[i][j] = 0;
}
for (int j = m ; j >= 1 ; -- j) {
if (a[i][j]) R[i][j] = R[i][j + 1] + 1;
else R[i][j] = 0;
}
}
for (int j = 1 ; j <= m ; ++ j) {
int cnt = 0;
int LX = -1, RX = -1;
for (int i = 1 ; i <= n + 1 ; ++ i) {
if (a[i][j]) {
cnt++;
if (cnt == 1) {
LX = L[i][j], RX = R[i][j];
}
LX = min(LX, L[i][j]), RX = min(RX, R[i][j]);
ans[cnt] = min(ans[cnt], LX + RX - 1);
} else {
if (cnt > 0) lim = min(lim, cnt);
LX = RX = -1;
cnt = 0;
}
}
}
for (int i = 1 ; i <= n / 2 ; ++ i) {
for (int j = 1 ; j <= m ; ++ j) {
swap(a[i][j], a[n - i + 1][j]);
}
}
}
int res = 0;
for (int i = 1 ; i <= lim ; ++ i) {
//cerr << i << " " << ans[i] << endl;
ans[i + 1] = min(ans[i + 1], ans[i]);
res = max(res, ans[i] * i);
}
cout << res;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
4440 KB |
Output is correct |
| 2 |
Correct |
1 ms |
4700 KB |
Output is correct |
| 3 |
Correct |
13 ms |
45000 KB |
Output is correct |
| 4 |
Correct |
13 ms |
44892 KB |
Output is correct |
| 5 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 6 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 7 |
Incorrect |
1 ms |
2396 KB |
Output isn't correct |
| 8 |
Correct |
1 ms |
4696 KB |
Output is correct |
| 9 |
Correct |
1 ms |
4700 KB |
Output is correct |
| 10 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 11 |
Correct |
1 ms |
4700 KB |
Output is correct |
| 12 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 13 |
Correct |
1 ms |
4444 KB |
Output is correct |
| 14 |
Correct |
1 ms |
4700 KB |
Output is correct |
| 15 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 16 |
Correct |
1 ms |
2652 KB |
Output is correct |
| 17 |
Correct |
2 ms |
8796 KB |
Output is correct |
| 18 |
Correct |
2 ms |
8796 KB |
Output is correct |
| 19 |
Correct |
2 ms |
8796 KB |
Output is correct |
| 20 |
Correct |
2 ms |
8644 KB |
Output is correct |
| 21 |
Correct |
2 ms |
10588 KB |
Output is correct |
| 22 |
Correct |
2 ms |
10588 KB |
Output is correct |
| 23 |
Correct |
2 ms |
8796 KB |
Output is correct |
| 24 |
Correct |
2 ms |
8796 KB |
Output is correct |
| 25 |
Correct |
2 ms |
7004 KB |
Output is correct |
| 26 |
Incorrect |
2 ms |
5212 KB |
Output isn't correct |
| 27 |
Incorrect |
8 ms |
9672 KB |
Output isn't correct |
| 28 |
Correct |
10 ms |
15196 KB |
Output is correct |
| 29 |
Correct |
9 ms |
14428 KB |
Output is correct |
| 30 |
Correct |
11 ms |
14172 KB |
Output is correct |
| 31 |
Correct |
10 ms |
14172 KB |
Output is correct |
| 32 |
Correct |
9 ms |
14172 KB |
Output is correct |
| 33 |
Correct |
13 ms |
20368 KB |
Output is correct |
| 34 |
Correct |
6 ms |
16984 KB |
Output is correct |
| 35 |
Correct |
12 ms |
21340 KB |
Output is correct |
| 36 |
Incorrect |
15 ms |
13916 KB |
Output isn't correct |
| 37 |
Correct |
2 ms |
6488 KB |
Output is correct |
| 38 |
Correct |
440 ms |
80052 KB |
Output is correct |
| 39 |
Correct |
1 ms |
6488 KB |
Output is correct |
| 40 |
Correct |
49 ms |
27340 KB |
Output is correct |
| 41 |
Correct |
2 ms |
6488 KB |
Output is correct |
| 42 |
Correct |
2 ms |
9052 KB |
Output is correct |
| 43 |
Correct |
397 ms |
80180 KB |
Output is correct |
| 44 |
Correct |
13 ms |
19544 KB |
Output is correct |
| 45 |
Correct |
374 ms |
80188 KB |
Output is correct |
| 46 |
Correct |
380 ms |
79916 KB |
Output is correct |
| 47 |
Correct |
389 ms |
80308 KB |
Output is correct |
| 48 |
Correct |
366 ms |
79956 KB |
Output is correct |
| 49 |
Incorrect |
433 ms |
80284 KB |
Output isn't correct |
| 50 |
Correct |
379 ms |
79956 KB |
Output is correct |
| 51 |
Correct |
377 ms |
80428 KB |
Output is correct |
| 52 |
Correct |
376 ms |
80188 KB |
Output is correct |
| 53 |
Correct |
369 ms |
80300 KB |
Output is correct |
| 54 |
Correct |
328 ms |
79956 KB |
Output is correct |
| 55 |
Correct |
336 ms |
80208 KB |
Output is correct |
| 56 |
Correct |
415 ms |
79956 KB |
Output is correct |
| 57 |
Correct |
332 ms |
80048 KB |
Output is correct |
| 58 |
Correct |
324 ms |
80176 KB |
Output is correct |
| 59 |
Correct |
324 ms |
80032 KB |
Output is correct |
| 60 |
Correct |
369 ms |
79956 KB |
Output is correct |
| 61 |
Incorrect |
446 ms |
80184 KB |
Output isn't correct |
| 62 |
Incorrect |
444 ms |
80140 KB |
Output isn't correct |
| 63 |
Incorrect |
440 ms |
80064 KB |
Output isn't correct |
| 64 |
Correct |
332 ms |
79920 KB |
Output is correct |
| 65 |
Correct |
372 ms |
80088 KB |
Output is correct |
| 66 |
Correct |
356 ms |
79956 KB |
Output is correct |
| 67 |
Correct |
377 ms |
80324 KB |
Output is correct |
| 68 |
Correct |
398 ms |
80160 KB |
Output is correct |
| 69 |
Correct |
333 ms |
80044 KB |
Output is correct |
| 70 |
Correct |
201 ms |
68372 KB |
Output is correct |
| 71 |
Correct |
312 ms |
80184 KB |
Output is correct |
| 72 |
Correct |
324 ms |
79956 KB |
Output is correct |
| 73 |
Correct |
323 ms |
80152 KB |
Output is correct |
| 74 |
Correct |
353 ms |
80140 KB |
Output is correct |
| 75 |
Correct |
321 ms |
79916 KB |
Output is correct |
| 76 |
Correct |
334 ms |
80140 KB |
Output is correct |
| 77 |
Correct |
341 ms |
80036 KB |
Output is correct |
| 78 |
Correct |
334 ms |
80144 KB |
Output is correct |
| 79 |
Correct |
286 ms |
80148 KB |
Output is correct |
| 80 |
Correct |
302 ms |
79916 KB |
Output is correct |
| 81 |
Correct |
285 ms |
80096 KB |
Output is correct |
| 82 |
Correct |
375 ms |
80144 KB |
Output is correct |
| 83 |
Correct |
330 ms |
79952 KB |
Output is correct |
| 84 |
Correct |
293 ms |
80144 KB |
Output is correct |
| 85 |
Correct |
328 ms |
80140 KB |
Output is correct |
| 86 |
Correct |
422 ms |
80208 KB |
Output is correct |
| 87 |
Correct |
333 ms |
80212 KB |
Output is correct |
| 88 |
Correct |
329 ms |
80208 KB |
Output is correct |
| 89 |
Correct |
356 ms |
80080 KB |
Output is correct |
| 90 |
Correct |
213 ms |
67292 KB |
Output is correct |
| 91 |
Correct |
340 ms |
80140 KB |
Output is correct |
| 92 |
Correct |
363 ms |
80208 KB |
Output is correct |
| 93 |
Correct |
427 ms |
80144 KB |
Output is correct |
| 94 |
Correct |
360 ms |
79952 KB |
Output is correct |
| 95 |
Correct |
344 ms |
79956 KB |
Output is correct |
| 96 |
Correct |
334 ms |
79916 KB |
Output is correct |
| 97 |
Correct |
424 ms |
80048 KB |
Output is correct |
| 98 |
Correct |
336 ms |
80336 KB |
Output is correct |
| 99 |
Correct |
367 ms |
80140 KB |
Output is correct |
| 100 |
Correct |
422 ms |
80172 KB |
Output is correct |
