#include<bits/stdc++.h>
using namespace std;
int a,b,c,d,e,i,j,dp[2509][2509],zx,xc,qw,we,k[2509][2509],pas,dd;
string s;
bool f[2509][2509];
int main(){
ios_base::sync_with_stdio(false),cin.tie(0),cout.tie(0);
cin>>a>>b;
if(a*b>=1000000){
cout<<a*b;
return 0;
}
for(c=1; c<=a; c++){
cin>>s;
for(d=1; d<=b; d++){
f[c][d]=s[d-1]-'0';
}
}
for(c=1; c<=a; c++){
for(d=1; d<=b; d++) dp[c][d]=dp[c-1][d]+dp[c][d-1]-dp[c-1][d-1]+f[c][d];
}
d=b;
for(c=1; c<=a; c++){
while(d>=1){
bool bo=0;
for(i=1; i<=a; i++) for(j=1; j<=b; j++) k[i][j]=0;
for(i=c; i<=a; i++){
for(j=d; j<=b; j++){
qw=i-c+1;we=j-d+1;
if(dp[i][j]-dp[i][we-1]-dp[qw-1][j]+dp[qw-1][we-1]==c*d){
k[qw][we]=1;
}
}
}
/* if(c==2&&d==2){
for(i=1; i<=a; i++){
for(j=1; j<=b; j++) cout<<k[i][j]<<" ";
cout<<endl;
}
}
if(c==2&&d==2) cout<<endl<<endl<<endl<<endl<<endl<<endl<<endl;*/
for(i=1; i<=a; i++){
for(j=1; j<=b; j++) k[i][j]=k[i-1][j]+k[i][j-1]-k[i-1][j-1]+k[i][j];
}
/* if(c==2&&d==2){
for(i=1; i<=a; i++){
for(j=1; j<=b; j++) cout<<k[i][j]<<" ";
cout<<endl;
}
}*/
for(i=1; i<=a; i++){
if(bo==1) break;
for(j=1; j<=b; j++){
if(f[i][j]==0) continue;
qw=i-c+1;we=j-d+1;
if(qw<=0) qw=1;
if(we<=0) we=1;
int hj=0;
hj=k[i][j]-k[qw-1][j]-k[i][we-1]+k[qw-1][we-1];
if(hj==0){
bo=1;
break;
}
}
}
if(bo==0){
// cout<<c<<" "<<d<<" vict"<<endl;
if(pas<c*d) pas=c*d;
break;
}
// cout<<c<<" "<<d<<" lose"<<endl;
d--;
}
}
cout<<pas;
return 0;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
9 ms |
380 KB |
Output is correct |
| 2 |
Correct |
2 ms |
504 KB |
Output is correct |
| 3 |
Correct |
35 ms |
26608 KB |
Output is correct |
| 4 |
Correct |
42 ms |
26744 KB |
Output is correct |
| 5 |
Correct |
33 ms |
376 KB |
Output is correct |
| 6 |
Correct |
7 ms |
376 KB |
Output is correct |
| 7 |
Correct |
2 ms |
376 KB |
Output is correct |
| 8 |
Correct |
5 ms |
632 KB |
Output is correct |
| 9 |
Correct |
3 ms |
632 KB |
Output is correct |
| 10 |
Correct |
3 ms |
504 KB |
Output is correct |
| 11 |
Correct |
1 ms |
504 KB |
Output is correct |
| 12 |
Correct |
3 ms |
508 KB |
Output is correct |
| 13 |
Correct |
1 ms |
504 KB |
Output is correct |
| 14 |
Correct |
1 ms |
504 KB |
Output is correct |
| 15 |
Correct |
3 ms |
504 KB |
Output is correct |
| 16 |
Correct |
3 ms |
632 KB |
Output is correct |
| 17 |
Correct |
5 ms |
1144 KB |
Output is correct |
| 18 |
Correct |
5 ms |
1144 KB |
Output is correct |
| 19 |
Correct |
8 ms |
1400 KB |
Output is correct |
| 20 |
Correct |
8 ms |
1400 KB |
Output is correct |
| 21 |
Correct |
6 ms |
1060 KB |
Output is correct |
| 22 |
Correct |
6 ms |
1272 KB |
Output is correct |
| 23 |
Correct |
10 ms |
1528 KB |
Output is correct |
| 24 |
Correct |
7 ms |
1272 KB |
Output is correct |
| 25 |
Correct |
11 ms |
1528 KB |
Output is correct |
| 26 |
Correct |
10 ms |
1528 KB |
Output is correct |
| 27 |
Correct |
114 ms |
4216 KB |
Output is correct |
| 28 |
Correct |
216 ms |
4472 KB |
Output is correct |
| 29 |
Correct |
291 ms |
5624 KB |
Output is correct |
| 30 |
Correct |
569 ms |
6648 KB |
Output is correct |
| 31 |
Correct |
428 ms |
5260 KB |
Output is correct |
| 32 |
Correct |
423 ms |
6032 KB |
Output is correct |
| 33 |
Correct |
686 ms |
6820 KB |
Output is correct |
| 34 |
Correct |
101 ms |
4860 KB |
Output is correct |
| 35 |
Correct |
489 ms |
6904 KB |
Output is correct |
| 36 |
Correct |
570 ms |
6904 KB |
Output is correct |
| 37 |
Correct |
3 ms |
632 KB |
Output is correct |
| 38 |
Correct |
2 ms |
524 KB |
Output is correct |
| 39 |
Correct |
3 ms |
504 KB |
Output is correct |
| 40 |
Execution timed out |
1044 ms |
15736 KB |
Time limit exceeded |
| 41 |
Correct |
3 ms |
504 KB |
Output is correct |
| 42 |
Correct |
13 ms |
1528 KB |
Output is correct |
| 43 |
Incorrect |
2 ms |
376 KB |
Output isn't correct |
| 44 |
Correct |
820 ms |
6904 KB |
Output is correct |
| 45 |
Incorrect |
2 ms |
436 KB |
Output isn't correct |
| 46 |
Incorrect |
2 ms |
376 KB |
Output isn't correct |
| 47 |
Incorrect |
2 ms |
376 KB |
Output isn't correct |
| 48 |
Incorrect |
2 ms |
376 KB |
Output isn't correct |
| 49 |
Incorrect |
2 ms |
376 KB |
Output isn't correct |
| 50 |
Incorrect |
2 ms |
376 KB |
Output isn't correct |
| 51 |
Incorrect |
1 ms |
376 KB |
Output isn't correct |
| 52 |
Incorrect |
6 ms |
376 KB |
Output isn't correct |
| 53 |
Incorrect |
2 ms |
376 KB |
Output isn't correct |
| 54 |
Incorrect |
2 ms |
376 KB |
Output isn't correct |
| 55 |
Incorrect |
2 ms |
376 KB |
Output isn't correct |
| 56 |
Incorrect |
2 ms |
376 KB |
Output isn't correct |
| 57 |
Incorrect |
2 ms |
376 KB |
Output isn't correct |
| 58 |
Incorrect |
2 ms |
376 KB |
Output isn't correct |
| 59 |
Incorrect |
0 ms |
376 KB |
Output isn't correct |
| 60 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
| 61 |
Incorrect |
2 ms |
376 KB |
Output isn't correct |
| 62 |
Incorrect |
2 ms |
376 KB |
Output isn't correct |
| 63 |
Incorrect |
2 ms |
376 KB |
Output isn't correct |
| 64 |
Incorrect |
2 ms |
376 KB |
Output isn't correct |
| 65 |
Incorrect |
2 ms |
376 KB |
Output isn't correct |
| 66 |
Incorrect |
2 ms |
376 KB |
Output isn't correct |
| 67 |
Incorrect |
2 ms |
376 KB |
Output isn't correct |
| 68 |
Incorrect |
2 ms |
376 KB |
Output isn't correct |
| 69 |
Incorrect |
2 ms |
408 KB |
Output isn't correct |
| 70 |
Incorrect |
2 ms |
376 KB |
Output isn't correct |
| 71 |
Incorrect |
2 ms |
376 KB |
Output isn't correct |
| 72 |
Incorrect |
2 ms |
376 KB |
Output isn't correct |
| 73 |
Incorrect |
2 ms |
404 KB |
Output isn't correct |
| 74 |
Incorrect |
0 ms |
376 KB |
Output isn't correct |
| 75 |
Incorrect |
2 ms |
424 KB |
Output isn't correct |
| 76 |
Incorrect |
2 ms |
376 KB |
Output isn't correct |
| 77 |
Incorrect |
2 ms |
376 KB |
Output isn't correct |
| 78 |
Incorrect |
2 ms |
376 KB |
Output isn't correct |
| 79 |
Incorrect |
2 ms |
376 KB |
Output isn't correct |
| 80 |
Incorrect |
7 ms |
504 KB |
Output isn't correct |
| 81 |
Incorrect |
2 ms |
380 KB |
Output isn't correct |
| 82 |
Incorrect |
2 ms |
376 KB |
Output isn't correct |
| 83 |
Incorrect |
2 ms |
376 KB |
Output isn't correct |
| 84 |
Incorrect |
2 ms |
376 KB |
Output isn't correct |
| 85 |
Incorrect |
2 ms |
376 KB |
Output isn't correct |
| 86 |
Incorrect |
3 ms |
376 KB |
Output isn't correct |
| 87 |
Incorrect |
2 ms |
376 KB |
Output isn't correct |
| 88 |
Incorrect |
2 ms |
376 KB |
Output isn't correct |
| 89 |
Incorrect |
3 ms |
376 KB |
Output isn't correct |
| 90 |
Incorrect |
6 ms |
376 KB |
Output isn't correct |
| 91 |
Incorrect |
2 ms |
376 KB |
Output isn't correct |
| 92 |
Incorrect |
2 ms |
376 KB |
Output isn't correct |
| 93 |
Incorrect |
2 ms |
376 KB |
Output isn't correct |
| 94 |
Incorrect |
2 ms |
376 KB |
Output isn't correct |
| 95 |
Incorrect |
0 ms |
376 KB |
Output isn't correct |
| 96 |
Incorrect |
2 ms |
376 KB |
Output isn't correct |
| 97 |
Incorrect |
2 ms |
376 KB |
Output isn't correct |
| 98 |
Incorrect |
4 ms |
380 KB |
Output isn't correct |
| 99 |
Incorrect |
2 ms |
376 KB |
Output isn't correct |
| 100 |
Incorrect |
2 ms |
376 KB |
Output isn't correct |
