| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 556168 |
2022-05-02T14:29:19 Z |
ngpin04 |
Bomb (IZhO17_bomb) |
C++14 |
|
453 ms |
75396 KB |
#include <bits/stdc++.h>
#define fi first
#define se second
#define mp make_pair
#define TASK ""
#define ALL(x) (x).begin(), (x).end()
using namespace std;
template <typename T1, typename T2> bool mini(T1 &a, T2 b) {
if (a > b) {a = b; return true;} return false;
}
template <typename T1, typename T2> bool maxi(T1 &a, T2 b) {
if (a < b) {a = b; return true;} return false;
}
const int N = 2505;
const int oo = 1e9;
const long long ooo = 1e18;
const int mod = 1e9 + 7; // 998244353;
const long double pi = acos(-1);
int up[N][N];
int dn[N][N];
int a[N][N];
int mx[N];
int n,m;
int main() {
ios_base::sync_with_stdio(0);
cin.tie(0);
#ifdef ONLINE_JUDGE
// freopen(TASK".inp","r",stdin);
// freopen(TASK".out","w",stdout);
#endif
cin >> n >> m;
for (int i = 1; i <= n; i++) {
string str; cin >> str;
for (int j = 1; j <= m; j++)
a[i][j] = str[j - 1] - '0';
}
for (int j = 1; j <= m; j++) {
for (int i = 1; i <= n; i++)
if (a[i][j])
up[i][j] = up[i - 1][j] + 1;
for (int i = n; i >= 1; i--)
if (a[i][j])
dn[i][j] = dn[i + 1][j] + 1;
for (int i = 1; i <= n; i++)
if (a[i][j])
mini(mx[1], up[i][j] + dn[i][j] - 1);
}
for (int i = 1; i <= m; i++)
mx[i] = oo;
for (int t = 0; t < 2; t++) {
for (int i = 1; i <= n; i++) {
for (int j = 1; j <= m; j++) if (a[i][j]) {
int k = j;
while (a[i][k])
k++;
int f = oo, g = oo;
for (int it = j; it < k; it++) {
mini(f, up[i][it]);
mini(g, dn[i][it]);
// cerr << i << " " << j << " " << it << " " << f << " " << g << "\n";
mini(mx[it - j + 1], f + g - 1);
}
mini(mx[k - j + 1], 0);
j = k;
}
}
for (int i = 1; i <= n; i++) {
reverse(a[i] + 1, a[i] + m + 1);
reverse(dn[i] + 1, dn[i] + m + 1);
reverse(up[i] + 1, up[i] + m + 1);
}
}
int ans = 0;
for (int i = 1; i <= m; i++) {
if (mx[i] == 0)
break;
maxi(ans, i * mx[i]);
}
cout << ans;
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
340 KB |
Output is correct |
| 2 |
Correct |
1 ms |
452 KB |
Output is correct |
| 3 |
Correct |
12 ms |
30376 KB |
Output is correct |
| 4 |
Correct |
12 ms |
30420 KB |
Output is correct |
| 5 |
Correct |
1 ms |
340 KB |
Output is correct |
| 6 |
Correct |
1 ms |
340 KB |
Output is correct |
| 7 |
Incorrect |
1 ms |
324 KB |
Output isn't correct |
| 8 |
Correct |
1 ms |
468 KB |
Output is correct |
| 9 |
Correct |
1 ms |
468 KB |
Output is correct |
| 10 |
Correct |
1 ms |
456 KB |
Output is correct |
| 11 |
Correct |
1 ms |
468 KB |
Output is correct |
| 12 |
Correct |
1 ms |
468 KB |
Output is correct |
| 13 |
Correct |
1 ms |
468 KB |
Output is correct |
| 14 |
Correct |
1 ms |
468 KB |
Output is correct |
| 15 |
Correct |
1 ms |
468 KB |
Output is correct |
| 16 |
Correct |
1 ms |
468 KB |
Output is correct |
| 17 |
Correct |
1 ms |
1108 KB |
Output is correct |
| 18 |
Correct |
1 ms |
1236 KB |
Output is correct |
| 19 |
Correct |
1 ms |
1484 KB |
Output is correct |
| 20 |
Correct |
1 ms |
1492 KB |
Output is correct |
| 21 |
Correct |
1 ms |
980 KB |
Output is correct |
| 22 |
Correct |
1 ms |
1236 KB |
Output is correct |
| 23 |
Correct |
1 ms |
1620 KB |
Output is correct |
| 24 |
Correct |
1 ms |
1364 KB |
Output is correct |
| 25 |
Correct |
1 ms |
1616 KB |
Output is correct |
| 26 |
Incorrect |
1 ms |
1620 KB |
Output isn't correct |
| 27 |
Incorrect |
4 ms |
4792 KB |
Output isn't correct |
| 28 |
Correct |
4 ms |
5204 KB |
Output is correct |
| 29 |
Correct |
6 ms |
6612 KB |
Output is correct |
| 30 |
Correct |
6 ms |
7892 KB |
Output is correct |
| 31 |
Correct |
5 ms |
6228 KB |
Output is correct |
| 32 |
Correct |
8 ms |
7124 KB |
Output is correct |
| 33 |
Correct |
7 ms |
8276 KB |
Output is correct |
| 34 |
Correct |
5 ms |
5576 KB |
Output is correct |
| 35 |
Correct |
7 ms |
8360 KB |
Output is correct |
| 36 |
Incorrect |
13 ms |
8276 KB |
Output isn't correct |
| 37 |
Correct |
1 ms |
468 KB |
Output is correct |
| 38 |
Correct |
392 ms |
74952 KB |
Output is correct |
| 39 |
Correct |
1 ms |
468 KB |
Output is correct |
| 40 |
Correct |
53 ms |
20584 KB |
Output is correct |
| 41 |
Correct |
1 ms |
468 KB |
Output is correct |
| 42 |
Correct |
1 ms |
1620 KB |
Output is correct |
| 43 |
Correct |
369 ms |
75040 KB |
Output is correct |
| 44 |
Correct |
7 ms |
8296 KB |
Output is correct |
| 45 |
Correct |
361 ms |
75068 KB |
Output is correct |
| 46 |
Correct |
353 ms |
75080 KB |
Output is correct |
| 47 |
Correct |
357 ms |
75196 KB |
Output is correct |
| 48 |
Correct |
365 ms |
75068 KB |
Output is correct |
| 49 |
Incorrect |
450 ms |
75196 KB |
Output isn't correct |
| 50 |
Correct |
344 ms |
75000 KB |
Output is correct |
| 51 |
Correct |
343 ms |
75032 KB |
Output is correct |
| 52 |
Correct |
322 ms |
75064 KB |
Output is correct |
| 53 |
Correct |
345 ms |
75104 KB |
Output is correct |
| 54 |
Correct |
267 ms |
75024 KB |
Output is correct |
| 55 |
Correct |
277 ms |
75160 KB |
Output is correct |
| 56 |
Correct |
453 ms |
75068 KB |
Output is correct |
| 57 |
Correct |
263 ms |
74956 KB |
Output is correct |
| 58 |
Correct |
271 ms |
74968 KB |
Output is correct |
| 59 |
Correct |
273 ms |
75168 KB |
Output is correct |
| 60 |
Incorrect |
324 ms |
75132 KB |
Output isn't correct |
| 61 |
Incorrect |
422 ms |
75056 KB |
Output isn't correct |
| 62 |
Incorrect |
446 ms |
75052 KB |
Output isn't correct |
| 63 |
Incorrect |
423 ms |
75224 KB |
Output isn't correct |
| 64 |
Incorrect |
271 ms |
74988 KB |
Output isn't correct |
| 65 |
Correct |
295 ms |
75156 KB |
Output is correct |
| 66 |
Correct |
334 ms |
75236 KB |
Output is correct |
| 67 |
Correct |
350 ms |
75056 KB |
Output is correct |
| 68 |
Correct |
363 ms |
75040 KB |
Output is correct |
| 69 |
Correct |
256 ms |
75120 KB |
Output is correct |
| 70 |
Correct |
146 ms |
59904 KB |
Output is correct |
| 71 |
Correct |
227 ms |
75040 KB |
Output is correct |
| 72 |
Correct |
238 ms |
75060 KB |
Output is correct |
| 73 |
Correct |
250 ms |
75124 KB |
Output is correct |
| 74 |
Correct |
249 ms |
75088 KB |
Output is correct |
| 75 |
Correct |
253 ms |
75112 KB |
Output is correct |
| 76 |
Correct |
268 ms |
75064 KB |
Output is correct |
| 77 |
Correct |
262 ms |
75040 KB |
Output is correct |
| 78 |
Correct |
266 ms |
75128 KB |
Output is correct |
| 79 |
Correct |
188 ms |
75076 KB |
Output is correct |
| 80 |
Correct |
193 ms |
75396 KB |
Output is correct |
| 81 |
Correct |
219 ms |
75112 KB |
Output is correct |
| 82 |
Correct |
252 ms |
75104 KB |
Output is correct |
| 83 |
Correct |
268 ms |
75344 KB |
Output is correct |
| 84 |
Correct |
172 ms |
75176 KB |
Output is correct |
| 85 |
Correct |
259 ms |
75172 KB |
Output is correct |
| 86 |
Correct |
422 ms |
75172 KB |
Output is correct |
| 87 |
Correct |
273 ms |
75272 KB |
Output is correct |
| 88 |
Correct |
269 ms |
75376 KB |
Output is correct |
| 89 |
Correct |
326 ms |
75100 KB |
Output is correct |
| 90 |
Correct |
157 ms |
59820 KB |
Output is correct |
| 91 |
Correct |
294 ms |
74948 KB |
Output is correct |
| 92 |
Correct |
317 ms |
75100 KB |
Output is correct |
| 93 |
Correct |
425 ms |
74916 KB |
Output is correct |
| 94 |
Correct |
326 ms |
74920 KB |
Output is correct |
| 95 |
Correct |
258 ms |
74820 KB |
Output is correct |
| 96 |
Correct |
264 ms |
74876 KB |
Output is correct |
| 97 |
Correct |
409 ms |
75128 KB |
Output is correct |
| 98 |
Correct |
250 ms |
74984 KB |
Output is correct |
| 99 |
Correct |
298 ms |
74924 KB |
Output is correct |
| 100 |
Correct |
400 ms |
74868 KB |
Output is correct |
