| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 109219 |
2019-05-05T14:50:56 Z |
ihdignite |
Bomb (IZhO17_bomb) |
C++14 |
|
494 ms |
62328 KB |
#include <bits/stdc++.h>
using namespace std;
const int mxN=2500;
int n, m, mxw=mxN, mxh=mxN, u[mxN][mxN], d[mxN][mxN], a[mxN], ans;
string g[mxN];
int main() {
ios::sync_with_stdio(0);
cin.tie(0);
cin >> n >> m;
for(int i=0; i<n; ++i) {
cin >> g[i];
for(int j=0, w=0; j<m; ++j) {
w=g[i][j]&1?w+1:0;
if(w&&(j+1>=m||g[i][j+1]&1^1))
mxw=min(w, mxw);
}
}
for(int j=0; j<m; ++j) {
for(int i=0, h=0; i<n; ++i) {
h=g[i][j]&1?h+1:0;
if(h&&(i+1>=n||g[i+1][j]&1^1))
mxh=min(h, mxh);
u[i][j]=i&&g[i-1][j]&1?u[i-1][j]:i;
}
for(int i=n-1; ~i; --i)
d[i][j]=i<n-1&&g[i+1][j]&1?d[i+1][j]:i;
}
for(int i=0; i<mxw; ++i)
a[i]=mxh;
auto c=[]() {
for(int i=0; i<n; ++i) {
for(int j=0; j<m; ++j) {
if(j&&g[i][j-1]&1||g[i][j]&1^1)
continue;
for(int k=0, l=0, r=n; k<mxw; ++k) {
l=max(u[i][j+k], l);
r=min(d[i][j+k], r);
a[k]=min(r-l+1, a[k]);
}
}
}
};
c();
for(int i=0; i<n; ++i) {
reverse(g[i].begin(), g[i].end());
reverse(u[i], u[i]+m);
reverse(d[i], d[i]+m);
}
c();
for(int i=0; i<mxw; ++i)
ans=max((i+1)*a[i], ans);
cout << ans;
}
Compilation message
bomb.cpp: In function 'int main()':
bomb.cpp:17:28: warning: suggest parentheses around arithmetic in operand of '^' [-Wparentheses]
if(w&&(j+1>=m||g[i][j+1]&1^1))
bomb.cpp:24:28: warning: suggest parentheses around arithmetic in operand of '^' [-Wparentheses]
if(h&&(i+1>=n||g[i+1][j]&1^1))
bomb.cpp: In lambda function:
bomb.cpp:36:31: warning: suggest parentheses around arithmetic in operand of '^' [-Wparentheses]
if(j&&g[i][j-1]&1||g[i][j]&1^1)
bomb.cpp:36:9: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
if(j&&g[i][j-1]&1||g[i][j]&1^1)
~^~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
384 KB |
Output is correct |
| 2 |
Correct |
3 ms |
640 KB |
Output is correct |
| 3 |
Correct |
18 ms |
20452 KB |
Output is correct |
| 4 |
Correct |
18 ms |
20480 KB |
Output is correct |
| 5 |
Correct |
3 ms |
512 KB |
Output is correct |
| 6 |
Correct |
3 ms |
384 KB |
Output is correct |
| 7 |
Correct |
2 ms |
512 KB |
Output is correct |
| 8 |
Correct |
3 ms |
640 KB |
Output is correct |
| 9 |
Correct |
3 ms |
640 KB |
Output is correct |
| 10 |
Correct |
3 ms |
512 KB |
Output is correct |
| 11 |
Correct |
3 ms |
640 KB |
Output is correct |
| 12 |
Correct |
2 ms |
512 KB |
Output is correct |
| 13 |
Correct |
2 ms |
560 KB |
Output is correct |
| 14 |
Correct |
3 ms |
512 KB |
Output is correct |
| 15 |
Correct |
3 ms |
640 KB |
Output is correct |
| 16 |
Correct |
3 ms |
640 KB |
Output is correct |
| 17 |
Correct |
4 ms |
1024 KB |
Output is correct |
| 18 |
Correct |
3 ms |
1024 KB |
Output is correct |
| 19 |
Correct |
3 ms |
1280 KB |
Output is correct |
| 20 |
Correct |
3 ms |
1280 KB |
Output is correct |
| 21 |
Correct |
3 ms |
896 KB |
Output is correct |
| 22 |
Correct |
4 ms |
1152 KB |
Output is correct |
| 23 |
Correct |
3 ms |
1280 KB |
Output is correct |
| 24 |
Correct |
3 ms |
1152 KB |
Output is correct |
| 25 |
Correct |
3 ms |
1280 KB |
Output is correct |
| 26 |
Correct |
4 ms |
1280 KB |
Output is correct |
| 27 |
Correct |
7 ms |
3584 KB |
Output is correct |
| 28 |
Correct |
7 ms |
3840 KB |
Output is correct |
| 29 |
Correct |
8 ms |
4736 KB |
Output is correct |
| 30 |
Correct |
12 ms |
5760 KB |
Output is correct |
| 31 |
Correct |
8 ms |
4616 KB |
Output is correct |
| 32 |
Correct |
12 ms |
5248 KB |
Output is correct |
| 33 |
Correct |
11 ms |
6016 KB |
Output is correct |
| 34 |
Correct |
7 ms |
4096 KB |
Output is correct |
| 35 |
Correct |
12 ms |
6016 KB |
Output is correct |
| 36 |
Correct |
13 ms |
6016 KB |
Output is correct |
| 37 |
Correct |
2 ms |
640 KB |
Output is correct |
| 38 |
Correct |
364 ms |
62252 KB |
Output is correct |
| 39 |
Correct |
2 ms |
640 KB |
Output is correct |
| 40 |
Correct |
36 ms |
14968 KB |
Output is correct |
| 41 |
Correct |
3 ms |
640 KB |
Output is correct |
| 42 |
Correct |
5 ms |
1280 KB |
Output is correct |
| 43 |
Correct |
342 ms |
62204 KB |
Output is correct |
| 44 |
Correct |
11 ms |
6016 KB |
Output is correct |
| 45 |
Correct |
332 ms |
62200 KB |
Output is correct |
| 46 |
Correct |
336 ms |
62004 KB |
Output is correct |
| 47 |
Correct |
372 ms |
62280 KB |
Output is correct |
| 48 |
Correct |
338 ms |
62216 KB |
Output is correct |
| 49 |
Correct |
330 ms |
62208 KB |
Output is correct |
| 50 |
Correct |
353 ms |
62296 KB |
Output is correct |
| 51 |
Correct |
381 ms |
62228 KB |
Output is correct |
| 52 |
Correct |
363 ms |
62200 KB |
Output is correct |
| 53 |
Correct |
336 ms |
62220 KB |
Output is correct |
| 54 |
Correct |
384 ms |
62072 KB |
Output is correct |
| 55 |
Correct |
378 ms |
62132 KB |
Output is correct |
| 56 |
Correct |
372 ms |
62180 KB |
Output is correct |
| 57 |
Correct |
357 ms |
62072 KB |
Output is correct |
| 58 |
Correct |
398 ms |
62328 KB |
Output is correct |
| 59 |
Correct |
348 ms |
62200 KB |
Output is correct |
| 60 |
Correct |
326 ms |
62264 KB |
Output is correct |
| 61 |
Correct |
352 ms |
62204 KB |
Output is correct |
| 62 |
Correct |
344 ms |
62200 KB |
Output is correct |
| 63 |
Correct |
368 ms |
62136 KB |
Output is correct |
| 64 |
Correct |
375 ms |
62200 KB |
Output is correct |
| 65 |
Correct |
361 ms |
62228 KB |
Output is correct |
| 66 |
Correct |
396 ms |
62200 KB |
Output is correct |
| 67 |
Correct |
360 ms |
62200 KB |
Output is correct |
| 68 |
Correct |
355 ms |
62072 KB |
Output is correct |
| 69 |
Correct |
327 ms |
62200 KB |
Output is correct |
| 70 |
Correct |
195 ms |
47624 KB |
Output is correct |
| 71 |
Correct |
363 ms |
62156 KB |
Output is correct |
| 72 |
Correct |
433 ms |
62152 KB |
Output is correct |
| 73 |
Correct |
413 ms |
61904 KB |
Output is correct |
| 74 |
Correct |
431 ms |
62112 KB |
Output is correct |
| 75 |
Correct |
478 ms |
62172 KB |
Output is correct |
| 76 |
Correct |
390 ms |
62228 KB |
Output is correct |
| 77 |
Correct |
434 ms |
62112 KB |
Output is correct |
| 78 |
Correct |
433 ms |
62116 KB |
Output is correct |
| 79 |
Correct |
379 ms |
62208 KB |
Output is correct |
| 80 |
Correct |
422 ms |
62108 KB |
Output is correct |
| 81 |
Correct |
379 ms |
62116 KB |
Output is correct |
| 82 |
Correct |
418 ms |
62164 KB |
Output is correct |
| 83 |
Correct |
377 ms |
62288 KB |
Output is correct |
| 84 |
Correct |
396 ms |
62124 KB |
Output is correct |
| 85 |
Correct |
368 ms |
62200 KB |
Output is correct |
| 86 |
Correct |
402 ms |
62172 KB |
Output is correct |
| 87 |
Correct |
411 ms |
62124 KB |
Output is correct |
| 88 |
Correct |
410 ms |
62116 KB |
Output is correct |
| 89 |
Correct |
398 ms |
62264 KB |
Output is correct |
| 90 |
Correct |
228 ms |
47724 KB |
Output is correct |
| 91 |
Correct |
494 ms |
62032 KB |
Output is correct |
| 92 |
Correct |
421 ms |
62196 KB |
Output is correct |
| 93 |
Correct |
447 ms |
62000 KB |
Output is correct |
| 94 |
Correct |
410 ms |
62120 KB |
Output is correct |
| 95 |
Correct |
426 ms |
62168 KB |
Output is correct |
| 96 |
Correct |
441 ms |
62116 KB |
Output is correct |
| 97 |
Correct |
386 ms |
62112 KB |
Output is correct |
| 98 |
Correct |
403 ms |
62148 KB |
Output is correct |
| 99 |
Correct |
379 ms |
62108 KB |
Output is correct |
| 100 |
Correct |
387 ms |
62160 KB |
Output is correct |
