| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 168966 |
2019-12-17T10:26:06 Z |
abil |
Bomb (IZhO17_bomb) |
C++14 |
|
1000 ms |
105712 KB |
#include <bits/stdc++.h>
#define fr first
#define sc second
#define pb push_back
#define mk make_pair
#define all(s) s.begin(),s.end()
//#define int long long
using namespace std;
const int N = (2500 + 12);
const int mod = (1e9 + 7);
const int INF = (0x3f3f3f3f);
char a[N][N];
int up[N][N], down[N][N], leftt[N][N], rightt[N][N];
int n, m;
bool solve(int x,int y){
for(int i = 1;i <= n; i++){
for(int j = 1;j <= m; j++){
if(a[i][j] == '1'){
if(up[i][j] + down[i][j] - 1 < x || leftt[i][j] + rightt[i][j] - 1 < y){
return false;
}
}
}
}
return true;
}
bool check(int x){
bool f = false;
for(int i = 1;i * i <= x; i++){
if(x % i == 0){
if(solve(x / i, i) || solve(i, x / i)){
f = true;
break;
}
}
}
return f;
}
main()
{
cin >> n >> m;
for(int i = 1;i <= n; i++){
for(int j = 1;j <= m; j++){
cin >> a[i][j];
}
}
for(int i = 1;i <= n; i++){
int cnt = 0;
for(int j = 1;j <= m; j++){
cnt = (a[i][j] == '0' ? 0 : cnt + 1);
leftt[i][j] = cnt;
}
}
for(int i = 1;i <= n; i++){
int cnt = 0;
for(int j = m;j >= 1; j--){
cnt = (a[i][j] == '0' ? 0 : cnt + 1);
rightt[i][j] = cnt;
}
}
for(int i = 1;i <= m; i++){
int cnt = 0;
for(int j = 1;j <= n; j++){
cnt = (a[j][i] == '0' ? 0 : cnt + 1);
up[j][i] = cnt;
}
}
for(int i = 1;i <= m; i++){
int cnt = 0;
for(int j = n;j >= 1; j--){
cnt = (a[j][i] == '0' ? 0 : cnt + 1);
down[j][i] = cnt;
}
}
int l = 1, r = n * m;
while(r - l > 1){
int mid = (r + l) >> 1;
if(check(mid)){
l = mid;
}
else{
r = mid;
}
}
if(check(r)){
l = r;
}
cout << l;
}
Compilation message
bomb.cpp:45:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
main()
^
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
376 KB |
Output is correct |
| 2 |
Correct |
2 ms |
760 KB |
Output is correct |
| 3 |
Correct |
38 ms |
46712 KB |
Output is correct |
| 4 |
Correct |
45 ms |
46584 KB |
Output is correct |
| 5 |
Correct |
2 ms |
376 KB |
Output is correct |
| 6 |
Correct |
2 ms |
380 KB |
Output is correct |
| 7 |
Correct |
2 ms |
376 KB |
Output is correct |
| 8 |
Incorrect |
2 ms |
760 KB |
Output isn't correct |
| 9 |
Incorrect |
2 ms |
760 KB |
Output isn't correct |
| 10 |
Incorrect |
2 ms |
632 KB |
Output isn't correct |
| 11 |
Incorrect |
2 ms |
760 KB |
Output isn't correct |
| 12 |
Incorrect |
2 ms |
632 KB |
Output isn't correct |
| 13 |
Correct |
2 ms |
760 KB |
Output is correct |
| 14 |
Correct |
2 ms |
636 KB |
Output is correct |
| 15 |
Incorrect |
2 ms |
760 KB |
Output isn't correct |
| 16 |
Incorrect |
2 ms |
760 KB |
Output isn't correct |
| 17 |
Incorrect |
4 ms |
1656 KB |
Output isn't correct |
| 18 |
Incorrect |
3 ms |
1656 KB |
Output isn't correct |
| 19 |
Incorrect |
4 ms |
2168 KB |
Output isn't correct |
| 20 |
Incorrect |
4 ms |
2168 KB |
Output isn't correct |
| 21 |
Incorrect |
3 ms |
1432 KB |
Output isn't correct |
| 22 |
Incorrect |
4 ms |
1912 KB |
Output isn't correct |
| 23 |
Incorrect |
5 ms |
2424 KB |
Output isn't correct |
| 24 |
Incorrect |
4 ms |
1916 KB |
Output isn't correct |
| 25 |
Incorrect |
4 ms |
2296 KB |
Output isn't correct |
| 26 |
Incorrect |
5 ms |
2296 KB |
Output isn't correct |
| 27 |
Correct |
16 ms |
7008 KB |
Output is correct |
| 28 |
Incorrect |
19 ms |
7544 KB |
Output isn't correct |
| 29 |
Incorrect |
24 ms |
9832 KB |
Output isn't correct |
| 30 |
Incorrect |
30 ms |
11512 KB |
Output isn't correct |
| 31 |
Incorrect |
25 ms |
9080 KB |
Output isn't correct |
| 32 |
Incorrect |
26 ms |
10332 KB |
Output isn't correct |
| 33 |
Incorrect |
34 ms |
12024 KB |
Output isn't correct |
| 34 |
Incorrect |
16 ms |
8312 KB |
Output isn't correct |
| 35 |
Incorrect |
33 ms |
12028 KB |
Output isn't correct |
| 36 |
Incorrect |
35 ms |
12024 KB |
Output isn't correct |
| 37 |
Incorrect |
2 ms |
760 KB |
Output isn't correct |
| 38 |
Incorrect |
973 ms |
105504 KB |
Output isn't correct |
| 39 |
Incorrect |
2 ms |
760 KB |
Output isn't correct |
| 40 |
Incorrect |
114 ms |
29276 KB |
Output isn't correct |
| 41 |
Incorrect |
2 ms |
760 KB |
Output isn't correct |
| 42 |
Incorrect |
4 ms |
2424 KB |
Output isn't correct |
| 43 |
Execution timed out |
1045 ms |
105568 KB |
Time limit exceeded |
| 44 |
Incorrect |
34 ms |
12024 KB |
Output isn't correct |
| 45 |
Execution timed out |
1032 ms |
105668 KB |
Time limit exceeded |
| 46 |
Incorrect |
980 ms |
105672 KB |
Output isn't correct |
| 47 |
Execution timed out |
1014 ms |
105528 KB |
Time limit exceeded |
| 48 |
Incorrect |
947 ms |
105468 KB |
Output isn't correct |
| 49 |
Incorrect |
959 ms |
105644 KB |
Output isn't correct |
| 50 |
Incorrect |
992 ms |
105500 KB |
Output isn't correct |
| 51 |
Execution timed out |
1004 ms |
105500 KB |
Time limit exceeded |
| 52 |
Incorrect |
969 ms |
105632 KB |
Output isn't correct |
| 53 |
Incorrect |
968 ms |
105524 KB |
Output isn't correct |
| 54 |
Incorrect |
999 ms |
105532 KB |
Output isn't correct |
| 55 |
Execution timed out |
1032 ms |
105576 KB |
Time limit exceeded |
| 56 |
Incorrect |
976 ms |
105436 KB |
Output isn't correct |
| 57 |
Execution timed out |
1089 ms |
105580 KB |
Time limit exceeded |
| 58 |
Execution timed out |
1084 ms |
105488 KB |
Time limit exceeded |
| 59 |
Execution timed out |
1082 ms |
105472 KB |
Time limit exceeded |
| 60 |
Incorrect |
973 ms |
105712 KB |
Output isn't correct |
| 61 |
Execution timed out |
1004 ms |
105676 KB |
Time limit exceeded |
| 62 |
Execution timed out |
1057 ms |
105480 KB |
Time limit exceeded |
| 63 |
Execution timed out |
1065 ms |
105428 KB |
Time limit exceeded |
| 64 |
Incorrect |
969 ms |
105572 KB |
Output isn't correct |
| 65 |
Incorrect |
981 ms |
105592 KB |
Output isn't correct |
| 66 |
Incorrect |
991 ms |
105548 KB |
Output isn't correct |
| 67 |
Incorrect |
976 ms |
105484 KB |
Output isn't correct |
| 68 |
Incorrect |
988 ms |
105604 KB |
Output isn't correct |
| 69 |
Execution timed out |
1082 ms |
105580 KB |
Time limit exceeded |
| 70 |
Incorrect |
605 ms |
84600 KB |
Output isn't correct |
| 71 |
Incorrect |
984 ms |
105592 KB |
Output isn't correct |
| 72 |
Incorrect |
967 ms |
105536 KB |
Output isn't correct |
| 73 |
Execution timed out |
1018 ms |
105576 KB |
Time limit exceeded |
| 74 |
Incorrect |
965 ms |
105536 KB |
Output isn't correct |
| 75 |
Incorrect |
981 ms |
105528 KB |
Output isn't correct |
| 76 |
Incorrect |
962 ms |
105508 KB |
Output isn't correct |
| 77 |
Incorrect |
995 ms |
105592 KB |
Output isn't correct |
| 78 |
Incorrect |
967 ms |
105568 KB |
Output isn't correct |
| 79 |
Incorrect |
946 ms |
105548 KB |
Output isn't correct |
| 80 |
Incorrect |
946 ms |
105500 KB |
Output isn't correct |
| 81 |
Incorrect |
947 ms |
105332 KB |
Output isn't correct |
| 82 |
Incorrect |
949 ms |
105348 KB |
Output isn't correct |
| 83 |
Incorrect |
947 ms |
105476 KB |
Output isn't correct |
| 84 |
Incorrect |
942 ms |
105332 KB |
Output isn't correct |
| 85 |
Execution timed out |
1014 ms |
105424 KB |
Time limit exceeded |
| 86 |
Execution timed out |
1042 ms |
105312 KB |
Time limit exceeded |
| 87 |
Incorrect |
999 ms |
105360 KB |
Output isn't correct |
| 88 |
Incorrect |
954 ms |
105460 KB |
Output isn't correct |
| 89 |
Incorrect |
973 ms |
105340 KB |
Output isn't correct |
| 90 |
Incorrect |
616 ms |
84344 KB |
Output isn't correct |
| 91 |
Incorrect |
978 ms |
105368 KB |
Output isn't correct |
| 92 |
Incorrect |
968 ms |
105376 KB |
Output isn't correct |
| 93 |
Execution timed out |
1002 ms |
105336 KB |
Time limit exceeded |
| 94 |
Incorrect |
970 ms |
105252 KB |
Output isn't correct |
| 95 |
Incorrect |
957 ms |
105328 KB |
Output isn't correct |
| 96 |
Incorrect |
950 ms |
105252 KB |
Output isn't correct |
| 97 |
Execution timed out |
1016 ms |
105336 KB |
Time limit exceeded |
| 98 |
Incorrect |
958 ms |
105228 KB |
Output isn't correct |
| 99 |
Incorrect |
968 ms |
105284 KB |
Output isn't correct |
| 100 |
Incorrect |
991 ms |
105336 KB |
Output isn't correct |
