#include <iostream>
#include <cstdio>
#include <cmath>
#include <algorithm>
#include <set>
#include <stack>
#include <vector>
#include <queue>
#include <map>
#include <cstring>
#include <array>
#include <bitset>
#include <cassert>
using namespace std;
const int maxn=2505;
bitset < maxn > a[maxn];
bitset < maxn > b[maxn];
int n, m;
bool provjeri(int x, int y){
for(int i=0; i<n; i++){
for(int j=0; j<m; j++){
b[i][j]=a[i][j];
}
}
bool ne;
for(int i=0; i<n; i++){
for(int j=0; j<m; j++){
if(a[i][j]){
ne=0;
for(int k=i; k<i+x; k++){
for(int l=j; l<j+y; l++){
if(k>=n || l>=m || !a[k][l]){
ne=1;
break;
}
if(ne){
break;
}
}
}
if(!ne){
for(int k=i; k<i+x; k++){
for(int l=j; l<j+y; l++){
b[k][l]=0;
}
}
}
}
}
}
for(int i=0; i<n; i++){
for(int j=0; j<m; j++){
if(b[i][j]){
return 0;
}
}
}
return 1;
}
int main(){
ios_base::sync_with_stdio(false);
cin.tie(0);
cout.tie(0);
cin >> n >> m;
string s;
for(int i=0; i<n; i++){
cin >> s;
for(int j=0; j<m; j++){
if(s[j]=='1'){
a[i][j]=1;
}
}
}
int br=0;
int mr=1e9, mc=1e9;
for(int i=0; i<n; i++){
for(int j=0; j<m; j++){
if(a[i][j]){
br++;
}
else if(br){
mr=min(mr, br);
br=0;
}
}
if(br){
mr=min(mr, br);
br=0;
}
}
for(int j=0; j<m; j++){
for(int i=0; i<n; i++){
if(a[i][j]){
br++;
}
else if(br){
mc=min(mc, br);
br=0;
}
}
if(br){
mc=min(mc, br);
br=0;
}
}
assert(mr!=1e9);
if(n>100 || m>100){
cout << mr*mc << '\n';
return 0;
}
int maksi=0;
for(int i=mr; i>0; i--){
for(int j=mc; j>0; j--){
if(provjeri(i, j)){
maksi=max(maksi, i*j);
}
}
}
cout << maksi << '\n';
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
1 ms |
364 KB |
Output isn't correct |
2 |
Incorrect |
1 ms |
364 KB |
Output isn't correct |
3 |
Correct |
2 ms |
1132 KB |
Output is correct |
4 |
Correct |
2 ms |
1132 KB |
Output is correct |
5 |
Correct |
1 ms |
384 KB |
Output is correct |
6 |
Correct |
1 ms |
364 KB |
Output is correct |
7 |
Correct |
1 ms |
364 KB |
Output is correct |
8 |
Correct |
1 ms |
512 KB |
Output is correct |
9 |
Correct |
1 ms |
364 KB |
Output is correct |
10 |
Correct |
1 ms |
364 KB |
Output is correct |
11 |
Correct |
1 ms |
364 KB |
Output is correct |
12 |
Correct |
1 ms |
364 KB |
Output is correct |
13 |
Incorrect |
1 ms |
364 KB |
Output isn't correct |
14 |
Correct |
1 ms |
364 KB |
Output is correct |
15 |
Correct |
1 ms |
364 KB |
Output is correct |
16 |
Incorrect |
1 ms |
236 KB |
Output isn't correct |
17 |
Incorrect |
2 ms |
364 KB |
Output isn't correct |
18 |
Correct |
2 ms |
364 KB |
Output is correct |
19 |
Correct |
30 ms |
364 KB |
Output is correct |
20 |
Correct |
35 ms |
364 KB |
Output is correct |
21 |
Correct |
1 ms |
364 KB |
Output is correct |
22 |
Correct |
3 ms |
364 KB |
Output is correct |
23 |
Correct |
240 ms |
364 KB |
Output is correct |
24 |
Correct |
36 ms |
364 KB |
Output is correct |
25 |
Correct |
786 ms |
468 KB |
Output is correct |
26 |
Incorrect |
142 ms |
492 KB |
Output isn't correct |
27 |
Correct |
2 ms |
492 KB |
Output is correct |
28 |
Incorrect |
2 ms |
364 KB |
Output isn't correct |
29 |
Incorrect |
2 ms |
492 KB |
Output isn't correct |
30 |
Incorrect |
2 ms |
492 KB |
Output isn't correct |
31 |
Incorrect |
2 ms |
364 KB |
Output isn't correct |
32 |
Incorrect |
2 ms |
512 KB |
Output isn't correct |
33 |
Incorrect |
2 ms |
492 KB |
Output isn't correct |
34 |
Incorrect |
1 ms |
364 KB |
Output isn't correct |
35 |
Incorrect |
2 ms |
364 KB |
Output isn't correct |
36 |
Correct |
2 ms |
492 KB |
Output is correct |
37 |
Incorrect |
2 ms |
364 KB |
Output isn't correct |
38 |
Correct |
34 ms |
1132 KB |
Output is correct |
39 |
Correct |
2 ms |
364 KB |
Output is correct |
40 |
Incorrect |
5 ms |
620 KB |
Output isn't correct |
41 |
Correct |
2 ms |
364 KB |
Output is correct |
42 |
Execution timed out |
1090 ms |
364 KB |
Time limit exceeded |
43 |
Correct |
32 ms |
1132 KB |
Output is correct |
44 |
Incorrect |
2 ms |
492 KB |
Output isn't correct |
45 |
Incorrect |
31 ms |
1132 KB |
Output isn't correct |
46 |
Correct |
34 ms |
1132 KB |
Output is correct |
47 |
Incorrect |
42 ms |
1132 KB |
Output isn't correct |
48 |
Incorrect |
32 ms |
1132 KB |
Output isn't correct |
49 |
Correct |
34 ms |
1132 KB |
Output is correct |
50 |
Incorrect |
31 ms |
1132 KB |
Output isn't correct |
51 |
Incorrect |
33 ms |
1260 KB |
Output isn't correct |
52 |
Incorrect |
32 ms |
1132 KB |
Output isn't correct |
53 |
Incorrect |
31 ms |
1132 KB |
Output isn't correct |
54 |
Incorrect |
30 ms |
1132 KB |
Output isn't correct |
55 |
Incorrect |
29 ms |
1260 KB |
Output isn't correct |
56 |
Correct |
36 ms |
1132 KB |
Output is correct |
57 |
Incorrect |
29 ms |
1004 KB |
Output isn't correct |
58 |
Incorrect |
29 ms |
1132 KB |
Output isn't correct |
59 |
Incorrect |
27 ms |
1004 KB |
Output isn't correct |
60 |
Correct |
30 ms |
1132 KB |
Output is correct |
61 |
Correct |
34 ms |
1132 KB |
Output is correct |
62 |
Correct |
33 ms |
1132 KB |
Output is correct |
63 |
Correct |
34 ms |
1132 KB |
Output is correct |
64 |
Correct |
28 ms |
1132 KB |
Output is correct |
65 |
Incorrect |
31 ms |
1132 KB |
Output isn't correct |
66 |
Incorrect |
31 ms |
1132 KB |
Output isn't correct |
67 |
Incorrect |
31 ms |
1132 KB |
Output isn't correct |
68 |
Incorrect |
32 ms |
1132 KB |
Output isn't correct |
69 |
Incorrect |
36 ms |
1004 KB |
Output isn't correct |
70 |
Incorrect |
18 ms |
620 KB |
Output isn't correct |
71 |
Incorrect |
28 ms |
876 KB |
Output isn't correct |
72 |
Incorrect |
29 ms |
876 KB |
Output isn't correct |
73 |
Incorrect |
29 ms |
876 KB |
Output isn't correct |
74 |
Incorrect |
30 ms |
1132 KB |
Output isn't correct |
75 |
Incorrect |
29 ms |
1004 KB |
Output isn't correct |
76 |
Incorrect |
30 ms |
1004 KB |
Output isn't correct |
77 |
Incorrect |
29 ms |
1004 KB |
Output isn't correct |
78 |
Incorrect |
29 ms |
1004 KB |
Output isn't correct |
79 |
Incorrect |
27 ms |
620 KB |
Output isn't correct |
80 |
Incorrect |
28 ms |
640 KB |
Output isn't correct |
81 |
Incorrect |
27 ms |
620 KB |
Output isn't correct |
82 |
Incorrect |
30 ms |
1048 KB |
Output isn't correct |
83 |
Incorrect |
30 ms |
1132 KB |
Output isn't correct |
84 |
Incorrect |
25 ms |
364 KB |
Output isn't correct |
85 |
Incorrect |
28 ms |
1132 KB |
Output isn't correct |
86 |
Incorrect |
33 ms |
1132 KB |
Output isn't correct |
87 |
Incorrect |
28 ms |
1132 KB |
Output isn't correct |
88 |
Incorrect |
29 ms |
1004 KB |
Output isn't correct |
89 |
Incorrect |
30 ms |
1132 KB |
Output isn't correct |
90 |
Incorrect |
18 ms |
1004 KB |
Output isn't correct |
91 |
Incorrect |
29 ms |
1132 KB |
Output isn't correct |
92 |
Incorrect |
32 ms |
1132 KB |
Output isn't correct |
93 |
Incorrect |
34 ms |
1132 KB |
Output isn't correct |
94 |
Incorrect |
32 ms |
1132 KB |
Output isn't correct |
95 |
Incorrect |
29 ms |
1132 KB |
Output isn't correct |
96 |
Incorrect |
29 ms |
1132 KB |
Output isn't correct |
97 |
Incorrect |
33 ms |
1132 KB |
Output isn't correct |
98 |
Incorrect |
29 ms |
1132 KB |
Output isn't correct |
99 |
Incorrect |
35 ms |
1132 KB |
Output isn't correct |
100 |
Incorrect |
33 ms |
1132 KB |
Output isn't correct |