| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 171027 |
2019-12-27T05:40:09 Z |
super_j6 |
Bomb (IZhO17_bomb) |
C++14 |
|
1000 ms |
50296 KB |
#include <iostream>
#include <cstdio>
#include <algorithm>
#include <string.h>
using namespace std;
#define endl '\n'
#define pi pair<int, int>
const int maxn = 2502;
int n, m;
int a[maxn][maxn];
bool solve(int x, int y){
int b[maxn][maxn];
memset(b, 0, sizeof(b));
for(int i = x; i <= n; i++){
for(int j = y; j <= m; j++){
if(a[i][j] - a[i - x][j] - a[i][j - y] + a[i - x][j - y] == x * y){
b[i - x + 1][j - y + 1]++;
b[i - x + 1][j + 1]--;
b[i + 1][j - y + 1]--;
b[i + 1][j + 1]++;
}
}
}
int amt = a[n][m];
for(int i = 1; i <= n; i++){
for(int j = 1; j <= m; j++){
b[i][j] += b[i - 1][j] + b[i][j - 1] - b[i - 1][j - 1];
amt -= (b[i][j] > 0);
}
}
return amt == 0;
}
int solveh(int x){
int l = 0, r = n + 1;
while(r - l > 1){
int mid = (l + r) / 2;
if(solve(mid, x)) l = mid;
else r = mid;
}
return l;
}
int solvew(int x){
int l = 0, r = m + 1;
while(r - l > 1){
int mid = (l + r) / 2;
if(solve(x, mid)) l = mid;
else r = mid;
}
return l;
}
int main(){
ios::sync_with_stdio(false);
cin.tie(NULL);
cin >> n >> m;
for(int i = 1; i <= n; i++){
for(int j = 1; j <= m; j++){
char c;
cin >> c;
a[i][j] = c - '0' + a[i - 1][j] + a[i][j - 1] - a[i - 1][j - 1];
}
}
int ret = 0;
for(int i = 1; i <= n && solve(i, 1); i++){
int x = solvew(i);
i = solveh(x);
ret = max(ret, x * i);
}
cout << ret << endl;
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
44 ms |
24824 KB |
Output is correct |
| 2 |
Correct |
34 ms |
24952 KB |
Output is correct |
| 3 |
Correct |
70 ms |
34808 KB |
Output is correct |
| 4 |
Correct |
69 ms |
34936 KB |
Output is correct |
| 5 |
Correct |
55 ms |
24952 KB |
Output is correct |
| 6 |
Correct |
47 ms |
24828 KB |
Output is correct |
| 7 |
Correct |
42 ms |
24824 KB |
Output is correct |
| 8 |
Correct |
112 ms |
24956 KB |
Output is correct |
| 9 |
Correct |
125 ms |
24956 KB |
Output is correct |
| 10 |
Correct |
153 ms |
24824 KB |
Output is correct |
| 11 |
Correct |
107 ms |
24952 KB |
Output is correct |
| 12 |
Correct |
87 ms |
25080 KB |
Output is correct |
| 13 |
Correct |
42 ms |
24924 KB |
Output is correct |
| 14 |
Correct |
48 ms |
24824 KB |
Output is correct |
| 15 |
Correct |
91 ms |
24956 KB |
Output is correct |
| 16 |
Correct |
48 ms |
24952 KB |
Output is correct |
| 17 |
Correct |
58 ms |
25080 KB |
Output is correct |
| 18 |
Correct |
162 ms |
25208 KB |
Output is correct |
| 19 |
Correct |
117 ms |
25336 KB |
Output is correct |
| 20 |
Correct |
137 ms |
25296 KB |
Output is correct |
| 21 |
Correct |
128 ms |
25080 KB |
Output is correct |
| 22 |
Correct |
257 ms |
25312 KB |
Output is correct |
| 23 |
Correct |
113 ms |
25336 KB |
Output is correct |
| 24 |
Correct |
108 ms |
25272 KB |
Output is correct |
| 25 |
Correct |
136 ms |
25208 KB |
Output is correct |
| 26 |
Correct |
63 ms |
25336 KB |
Output is correct |
| 27 |
Correct |
94 ms |
26360 KB |
Output is correct |
| 28 |
Correct |
489 ms |
26600 KB |
Output is correct |
| 29 |
Execution timed out |
1054 ms |
27056 KB |
Time limit exceeded |
| 30 |
Correct |
272 ms |
27512 KB |
Output is correct |
| 31 |
Correct |
292 ms |
27000 KB |
Output is correct |
| 32 |
Correct |
254 ms |
27256 KB |
Output is correct |
| 33 |
Correct |
283 ms |
27676 KB |
Output is correct |
| 34 |
Correct |
613 ms |
26616 KB |
Output is correct |
| 35 |
Correct |
294 ms |
27708 KB |
Output is correct |
| 36 |
Correct |
121 ms |
27640 KB |
Output is correct |
| 37 |
Correct |
107 ms |
24952 KB |
Output is correct |
| 38 |
Correct |
834 ms |
50096 KB |
Output is correct |
| 39 |
Correct |
98 ms |
24952 KB |
Output is correct |
| 40 |
Correct |
507 ms |
31992 KB |
Output is correct |
| 41 |
Correct |
120 ms |
24952 KB |
Output is correct |
| 42 |
Execution timed out |
1059 ms |
25340 KB |
Time limit exceeded |
| 43 |
Execution timed out |
1086 ms |
50012 KB |
Time limit exceeded |
| 44 |
Execution timed out |
1072 ms |
27640 KB |
Time limit exceeded |
| 45 |
Execution timed out |
1081 ms |
50140 KB |
Time limit exceeded |
| 46 |
Correct |
974 ms |
50168 KB |
Output is correct |
| 47 |
Execution timed out |
1081 ms |
50040 KB |
Time limit exceeded |
| 48 |
Execution timed out |
1070 ms |
49976 KB |
Time limit exceeded |
| 49 |
Execution timed out |
1082 ms |
50040 KB |
Time limit exceeded |
| 50 |
Execution timed out |
1064 ms |
50080 KB |
Time limit exceeded |
| 51 |
Execution timed out |
1069 ms |
50168 KB |
Time limit exceeded |
| 52 |
Execution timed out |
1074 ms |
50040 KB |
Time limit exceeded |
| 53 |
Execution timed out |
1068 ms |
50296 KB |
Time limit exceeded |
| 54 |
Execution timed out |
1071 ms |
50040 KB |
Time limit exceeded |
| 55 |
Execution timed out |
1077 ms |
50172 KB |
Time limit exceeded |
| 56 |
Correct |
904 ms |
50040 KB |
Output is correct |
| 57 |
Execution timed out |
1084 ms |
50040 KB |
Time limit exceeded |
| 58 |
Execution timed out |
1070 ms |
50168 KB |
Time limit exceeded |
| 59 |
Execution timed out |
1076 ms |
50040 KB |
Time limit exceeded |
| 60 |
Execution timed out |
1036 ms |
50168 KB |
Time limit exceeded |
| 61 |
Execution timed out |
1069 ms |
50060 KB |
Time limit exceeded |
| 62 |
Execution timed out |
1084 ms |
50044 KB |
Time limit exceeded |
| 63 |
Execution timed out |
1028 ms |
50040 KB |
Time limit exceeded |
| 64 |
Correct |
999 ms |
50176 KB |
Output is correct |
| 65 |
Execution timed out |
1083 ms |
50040 KB |
Time limit exceeded |
| 66 |
Execution timed out |
1073 ms |
50040 KB |
Time limit exceeded |
| 67 |
Execution timed out |
1077 ms |
50040 KB |
Time limit exceeded |
| 68 |
Execution timed out |
1074 ms |
50044 KB |
Time limit exceeded |
| 69 |
Execution timed out |
1071 ms |
50020 KB |
Time limit exceeded |
| 70 |
Execution timed out |
1079 ms |
45176 KB |
Time limit exceeded |
| 71 |
Execution timed out |
1075 ms |
50208 KB |
Time limit exceeded |
| 72 |
Execution timed out |
1082 ms |
50012 KB |
Time limit exceeded |
| 73 |
Execution timed out |
1073 ms |
50132 KB |
Time limit exceeded |
| 74 |
Execution timed out |
1063 ms |
50040 KB |
Time limit exceeded |
| 75 |
Execution timed out |
1068 ms |
50116 KB |
Time limit exceeded |
| 76 |
Execution timed out |
1074 ms |
50040 KB |
Time limit exceeded |
| 77 |
Execution timed out |
1084 ms |
50036 KB |
Time limit exceeded |
| 78 |
Execution timed out |
1073 ms |
50040 KB |
Time limit exceeded |
| 79 |
Execution timed out |
1083 ms |
49672 KB |
Time limit exceeded |
| 80 |
Execution timed out |
1089 ms |
49656 KB |
Time limit exceeded |
| 81 |
Execution timed out |
1087 ms |
49616 KB |
Time limit exceeded |
| 82 |
Execution timed out |
1076 ms |
49656 KB |
Time limit exceeded |
| 83 |
Execution timed out |
1063 ms |
49656 KB |
Time limit exceeded |
| 84 |
Execution timed out |
1091 ms |
49656 KB |
Time limit exceeded |
| 85 |
Execution timed out |
1073 ms |
49576 KB |
Time limit exceeded |
| 86 |
Execution timed out |
1079 ms |
49772 KB |
Time limit exceeded |
| 87 |
Execution timed out |
1076 ms |
49656 KB |
Time limit exceeded |
| 88 |
Execution timed out |
1069 ms |
49720 KB |
Time limit exceeded |
| 89 |
Execution timed out |
1078 ms |
49656 KB |
Time limit exceeded |
| 90 |
Execution timed out |
1074 ms |
44792 KB |
Time limit exceeded |
| 91 |
Execution timed out |
1079 ms |
49664 KB |
Time limit exceeded |
| 92 |
Execution timed out |
1057 ms |
49784 KB |
Time limit exceeded |
| 93 |
Execution timed out |
1075 ms |
49656 KB |
Time limit exceeded |
| 94 |
Execution timed out |
1084 ms |
49656 KB |
Time limit exceeded |
| 95 |
Execution timed out |
1085 ms |
49784 KB |
Time limit exceeded |
| 96 |
Execution timed out |
1083 ms |
49656 KB |
Time limit exceeded |
| 97 |
Execution timed out |
1073 ms |
49656 KB |
Time limit exceeded |
| 98 |
Execution timed out |
1087 ms |
49660 KB |
Time limit exceeded |
| 99 |
Execution timed out |
1073 ms |
49676 KB |
Time limit exceeded |
| 100 |
Execution timed out |
1070 ms |
49684 KB |
Time limit exceeded |
