| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 167417 |
2019-12-08T10:41:19 Z |
GioChkhaidze |
Bomb (IZhO17_bomb) |
C++14 |
|
644 ms |
42360 KB |
#include <bits/stdc++.h>
#define Tree int h,int l,int r
#define Left 2*h,l,(l+r)/2
#define Right 2*h+1,(l+r)/2+1,r
#define F first
#define S second
using namespace std;
const int N=2505;
int n,m,width=1e9,length=1e9,last,D[N][N];
bool f[N][N];
string s[N],S;
vector < pair < int , pair < int , int > > > v;
inline bool check(int x,int y) {
for (int i=0; i<n; i++)
for (int j=0; j<m; j++)
if (s[i][j]=='1') f[i][j]=1;
else f[i][j]=0;
for (int i=0; i<n; i++)
for (int j=0; j<m; j++)
if (s[i][j]=='1')
if (i+x-1<n && j+y-1<m) {
if (D[i+x][j+y]-D[i][j+y]-D[i+x][j]+D[i][j]!=0 && !f[i][j]) continue;
if (D[i+x][j+y]-D[i][j+y]-D[i+x][j]+D[i][j]!=0) return 0;
for (int k1=i; k1<i+x; k1++)
for (int k2=j; k2<j+y; k2++)
f[k1][k2]=0;
}
return 1;
}
main () {
scanf("%d%d",&n,&m);
getline(cin,S);
for (int i=0; i<n; i++)
getline(cin,s[i]);
for (int i=0; i<n; i++)
for (int j=0; j<m; j++)
D[i+1][j+1]=D[i][j+1]+D[i+1][j]-D[i][j]+(s[i][j]=='0');
for (int i=0; i<n; i++) {
last=m;
for (int j=m-1; j>=0; j--) {
if (s[i][j]=='0' && last-1!=j)
if (width>last-j-1) width=last-j-1;
if (s[i][j]=='0') last=j;
}
if (last)
if (last<width) width=last;
}
for (int j=0; j<m; j++) {
last=n;
for (int i=n-1; i>=0; i--) {
if (s[i][j]=='0' && last-1!=i)
if (length>last-i-1) length=last-i-1;
if (s[i][j]=='0') last=i;
}
if (last)
if (last<length) length=last;
}
if (width==1e9 || length==1e9) { cout<<0<<endl; return 0; }
if (1LL*n*m*length*width>=3e8) {
cout<<length*width<<endl;
return 0;
}
for (int i=1; i<=length; i++)
for (int j=1; j<=width; j++)
v.push_back({i*j,{i,j}});
sort(v.begin(),v.end());
for (int i=v.size()-1; i>=0; i--) {
if (check(v[i].S.F,v[i].S.S)) {
cout<<v[i].F<<endl;
return 0;
}
}
}
Compilation message
bomb.cpp:33:7: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
main () {
^
bomb.cpp: In function 'int main()':
bomb.cpp:34:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d%d",&n,&m);
~~~~~^~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
376 KB |
Output is correct |
| 2 |
Correct |
2 ms |
504 KB |
Output is correct |
| 3 |
Correct |
20 ms |
16504 KB |
Output is correct |
| 4 |
Correct |
20 ms |
16504 KB |
Output is correct |
| 5 |
Correct |
2 ms |
504 KB |
Output is correct |
| 6 |
Correct |
2 ms |
376 KB |
Output is correct |
| 7 |
Correct |
2 ms |
504 KB |
Output is correct |
| 8 |
Correct |
2 ms |
504 KB |
Output is correct |
| 9 |
Correct |
2 ms |
504 KB |
Output is correct |
| 10 |
Correct |
2 ms |
504 KB |
Output is correct |
| 11 |
Correct |
2 ms |
508 KB |
Output is correct |
| 12 |
Correct |
2 ms |
504 KB |
Output is correct |
| 13 |
Correct |
2 ms |
504 KB |
Output is correct |
| 14 |
Correct |
2 ms |
504 KB |
Output is correct |
| 15 |
Correct |
2 ms |
504 KB |
Output is correct |
| 16 |
Correct |
2 ms |
504 KB |
Output is correct |
| 17 |
Correct |
3 ms |
888 KB |
Output is correct |
| 18 |
Correct |
3 ms |
888 KB |
Output is correct |
| 19 |
Correct |
6 ms |
1124 KB |
Output is correct |
| 20 |
Correct |
7 ms |
1016 KB |
Output is correct |
| 21 |
Correct |
3 ms |
760 KB |
Output is correct |
| 22 |
Correct |
3 ms |
892 KB |
Output is correct |
| 23 |
Correct |
11 ms |
1144 KB |
Output is correct |
| 24 |
Correct |
7 ms |
1016 KB |
Output is correct |
| 25 |
Correct |
63 ms |
1144 KB |
Output is correct |
| 26 |
Correct |
5 ms |
1144 KB |
Output is correct |
| 27 |
Correct |
10 ms |
2808 KB |
Output is correct |
| 28 |
Correct |
14 ms |
2936 KB |
Output is correct |
| 29 |
Incorrect |
12 ms |
2796 KB |
Output isn't correct |
| 30 |
Incorrect |
17 ms |
3288 KB |
Output isn't correct |
| 31 |
Incorrect |
14 ms |
2680 KB |
Output isn't correct |
| 32 |
Incorrect |
15 ms |
3064 KB |
Output isn't correct |
| 33 |
Incorrect |
19 ms |
3448 KB |
Output isn't correct |
| 34 |
Correct |
12 ms |
3192 KB |
Output is correct |
| 35 |
Incorrect |
18 ms |
3320 KB |
Output isn't correct |
| 36 |
Correct |
219 ms |
4648 KB |
Output is correct |
| 37 |
Correct |
2 ms |
504 KB |
Output is correct |
| 38 |
Correct |
431 ms |
35188 KB |
Output is correct |
| 39 |
Correct |
2 ms |
504 KB |
Output is correct |
| 40 |
Incorrect |
56 ms |
8568 KB |
Output isn't correct |
| 41 |
Correct |
2 ms |
504 KB |
Output is correct |
| 42 |
Correct |
342 ms |
1236 KB |
Output is correct |
| 43 |
Correct |
429 ms |
36132 KB |
Output is correct |
| 44 |
Incorrect |
18 ms |
3448 KB |
Output isn't correct |
| 45 |
Incorrect |
432 ms |
36284 KB |
Output isn't correct |
| 46 |
Correct |
432 ms |
36388 KB |
Output is correct |
| 47 |
Incorrect |
426 ms |
36232 KB |
Output isn't correct |
| 48 |
Incorrect |
426 ms |
36220 KB |
Output isn't correct |
| 49 |
Correct |
644 ms |
42360 KB |
Output is correct |
| 50 |
Incorrect |
428 ms |
36344 KB |
Output isn't correct |
| 51 |
Incorrect |
429 ms |
36200 KB |
Output isn't correct |
| 52 |
Incorrect |
445 ms |
36296 KB |
Output isn't correct |
| 53 |
Incorrect |
432 ms |
36176 KB |
Output isn't correct |
| 54 |
Incorrect |
431 ms |
36120 KB |
Output isn't correct |
| 55 |
Incorrect |
435 ms |
36064 KB |
Output isn't correct |
| 56 |
Correct |
432 ms |
36128 KB |
Output is correct |
| 57 |
Incorrect |
430 ms |
35824 KB |
Output isn't correct |
| 58 |
Incorrect |
430 ms |
35912 KB |
Output isn't correct |
| 59 |
Incorrect |
445 ms |
35992 KB |
Output isn't correct |
| 60 |
Correct |
490 ms |
36304 KB |
Output is correct |
| 61 |
Correct |
476 ms |
36088 KB |
Output is correct |
| 62 |
Correct |
429 ms |
36216 KB |
Output is correct |
| 63 |
Correct |
423 ms |
36272 KB |
Output is correct |
| 64 |
Correct |
446 ms |
36216 KB |
Output is correct |
| 65 |
Incorrect |
425 ms |
35840 KB |
Output isn't correct |
| 66 |
Incorrect |
432 ms |
35896 KB |
Output isn't correct |
| 67 |
Incorrect |
441 ms |
36020 KB |
Output isn't correct |
| 68 |
Incorrect |
450 ms |
35980 KB |
Output isn't correct |
| 69 |
Incorrect |
437 ms |
36068 KB |
Output isn't correct |
| 70 |
Incorrect |
278 ms |
29048 KB |
Output isn't correct |
| 71 |
Incorrect |
518 ms |
36344 KB |
Output isn't correct |
| 72 |
Incorrect |
430 ms |
35860 KB |
Output isn't correct |
| 73 |
Incorrect |
434 ms |
36056 KB |
Output isn't correct |
| 74 |
Incorrect |
430 ms |
35908 KB |
Output isn't correct |
| 75 |
Incorrect |
436 ms |
36020 KB |
Output isn't correct |
| 76 |
Incorrect |
486 ms |
35960 KB |
Output isn't correct |
| 77 |
Incorrect |
436 ms |
35956 KB |
Output isn't correct |
| 78 |
Incorrect |
533 ms |
36000 KB |
Output isn't correct |
| 79 |
Incorrect |
432 ms |
36220 KB |
Output isn't correct |
| 80 |
Incorrect |
433 ms |
36404 KB |
Output isn't correct |
| 81 |
Incorrect |
430 ms |
36392 KB |
Output isn't correct |
| 82 |
Incorrect |
433 ms |
36208 KB |
Output isn't correct |
| 83 |
Incorrect |
442 ms |
36216 KB |
Output isn't correct |
| 84 |
Incorrect |
434 ms |
36396 KB |
Output isn't correct |
| 85 |
Incorrect |
426 ms |
36472 KB |
Output isn't correct |
| 86 |
Incorrect |
423 ms |
36396 KB |
Output isn't correct |
| 87 |
Incorrect |
428 ms |
36712 KB |
Output isn't correct |
| 88 |
Incorrect |
431 ms |
36124 KB |
Output isn't correct |
| 89 |
Incorrect |
425 ms |
36496 KB |
Output isn't correct |
| 90 |
Incorrect |
326 ms |
29308 KB |
Output isn't correct |
| 91 |
Incorrect |
431 ms |
36808 KB |
Output isn't correct |
| 92 |
Incorrect |
429 ms |
37368 KB |
Output isn't correct |
| 93 |
Incorrect |
431 ms |
37088 KB |
Output isn't correct |
| 94 |
Incorrect |
432 ms |
36996 KB |
Output isn't correct |
| 95 |
Incorrect |
429 ms |
36260 KB |
Output isn't correct |
| 96 |
Incorrect |
428 ms |
36280 KB |
Output isn't correct |
| 97 |
Incorrect |
482 ms |
36800 KB |
Output isn't correct |
| 98 |
Incorrect |
431 ms |
36152 KB |
Output isn't correct |
| 99 |
Incorrect |
429 ms |
36856 KB |
Output isn't correct |
| 100 |
Incorrect |
424 ms |
36856 KB |
Output isn't correct |
