| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 91420 |
2018-12-27T12:22:29 Z |
Vardanyan |
Bomb (IZhO17_bomb) |
C++14 |
|
1000 ms |
10024 KB |
#include<bits/stdc++.h>
using namespace std;
const int N = 2505;
int a[N][N];
int pref[N][N];
int pref2[N][N];
int calc1(int x1,int y1,int x2,int y2){
return pref[x2][y2]-pref[x2][y1-1]-pref[x1-1][y2]+pref[x1-1][y1-1];
}
int calc2(int x1,int y1,int x2,int y2){
return pref2[x2][y2]-pref2[x2][y1-1]-pref2[x1-1][y2]+pref2[x1-1][y1-1];
}
int main()
{
int n,m;
scanf("%d%d",&n,&m);
if(n>450 || m>450) return 0;
for(int i = 1;i<=n;i++){
for(int j = 1;j<=m;j++){
char c;
scanf(" %c",&c);
a[i][j] = (c == '1');
}
}
for(int i = 1;i<=n;i++){
for(int j = 1;j<=m;j++){
pref[i][j] = pref[i-1][j]+pref[i][j-1]-pref[i-1][j-1]+a[i][j];
}
}
int l = 1;
int r = n*m;
int ans = 1;
while(r>=1){
int mid = r;
bool F = false;
for(int q = 1;q<=sqrt(mid);q++){
if(mid%q) continue;
int x = mid/q;
int y = q;
bool f = true;
for(int i = 1;i<=n;i++)
for(int j = 1;j<=m;j++) pref2[i][j] = 0;
for(int i = 1;i<=n;i++){
for(int j = 1;j<=m;j++){
// if(a[i][j]!=1) continue;
pref2[i][j] = pref2[i-1][j]+pref2[i][j-1]-pref2[i-1][j-1];
if(i+x-1<=n && j+y-1<=m){
if(calc1(i,j,i+x-1,j+y-1) == mid){
pref2[i][j] = pref2[i-1][j]+pref2[i][j-1]-pref2[i-1][j-1]+1;
}
}
if(a[i][j] == 0) continue;
int x1 = i-x+1;
int y1 = j-y+1;
x1 = max(1,x1);
y1 = max(1,y1);
if(calc2(x1,y1,i,j) == 0){
f = false;
break;
}
}
}
if(f){
F = true;
break;
}
swap(x,y);
f = true;
for(int i = 1;i<=n;i++)
for(int j = 1;j<=m;j++) pref2[i][j] = 0;
for(int i = 1;i<=n;i++){
for(int j = 1;j<=m;j++){
// if(a[i][j]!=1) continue;
pref2[i][j] = pref2[i-1][j]+pref2[i][j-1]-pref2[i-1][j-1];
if(i+x-1<=n && j+y-1<=m){
if(calc1(i,j,i+x-1,j+y-1) == mid){
pref2[i][j] = pref2[i-1][j]+pref2[i][j-1]-pref2[i-1][j-1]+1;
}
}
if(a[i][j] == 0) continue;
int x1 = i-x+1;
int y1 = j-y+1;
x1 = max(1,x1);
y1 = max(1,y1);
if(calc2(x1,y1,i,j) == 0){
f = false;
break;
}
}
}
if(f){
F = true;
break;
}
}
if(F){
ans = mid;
break;
}
r--;
}
cout<<ans<<endl;
return 0;
}
Compilation message
bomb.cpp: In function 'int main()':
bomb.cpp:31:9: warning: unused variable 'l' [-Wunused-variable]
int l = 1;
^
bomb.cpp:17:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d%d",&n,&m);
~~~~~^~~~~~~~~~~~~~
bomb.cpp:22:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf(" %c",&c);
~~~~~^~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
376 KB |
Output is correct |
| 2 |
Correct |
2 ms |
632 KB |
Output is correct |
| 3 |
Incorrect |
2 ms |
632 KB |
Output isn't correct |
| 4 |
Incorrect |
2 ms |
632 KB |
Output isn't correct |
| 5 |
Incorrect |
2 ms |
632 KB |
Output isn't correct |
| 6 |
Incorrect |
2 ms |
632 KB |
Output isn't correct |
| 7 |
Correct |
2 ms |
632 KB |
Output is correct |
| 8 |
Correct |
4 ms |
816 KB |
Output is correct |
| 9 |
Correct |
4 ms |
896 KB |
Output is correct |
| 10 |
Correct |
2 ms |
896 KB |
Output is correct |
| 11 |
Correct |
4 ms |
896 KB |
Output is correct |
| 12 |
Correct |
2 ms |
928 KB |
Output is correct |
| 13 |
Correct |
2 ms |
928 KB |
Output is correct |
| 14 |
Correct |
2 ms |
928 KB |
Output is correct |
| 15 |
Correct |
3 ms |
928 KB |
Output is correct |
| 16 |
Correct |
3 ms |
928 KB |
Output is correct |
| 17 |
Correct |
163 ms |
1604 KB |
Output is correct |
| 18 |
Correct |
312 ms |
1612 KB |
Output is correct |
| 19 |
Correct |
875 ms |
1956 KB |
Output is correct |
| 20 |
Correct |
982 ms |
1956 KB |
Output is correct |
| 21 |
Correct |
442 ms |
1956 KB |
Output is correct |
| 22 |
Correct |
847 ms |
1956 KB |
Output is correct |
| 23 |
Execution timed out |
1082 ms |
2040 KB |
Time limit exceeded |
| 24 |
Correct |
542 ms |
2040 KB |
Output is correct |
| 25 |
Execution timed out |
1084 ms |
2056 KB |
Time limit exceeded |
| 26 |
Correct |
611 ms |
2128 KB |
Output is correct |
| 27 |
Execution timed out |
1076 ms |
5280 KB |
Time limit exceeded |
| 28 |
Execution timed out |
1077 ms |
5744 KB |
Time limit exceeded |
| 29 |
Execution timed out |
1082 ms |
7140 KB |
Time limit exceeded |
| 30 |
Execution timed out |
1073 ms |
8672 KB |
Time limit exceeded |
| 31 |
Execution timed out |
1082 ms |
8672 KB |
Time limit exceeded |
| 32 |
Execution timed out |
1072 ms |
8672 KB |
Time limit exceeded |
| 33 |
Execution timed out |
1078 ms |
9540 KB |
Time limit exceeded |
| 34 |
Execution timed out |
1076 ms |
9540 KB |
Time limit exceeded |
| 35 |
Execution timed out |
1085 ms |
9824 KB |
Time limit exceeded |
| 36 |
Execution timed out |
1090 ms |
10024 KB |
Time limit exceeded |
| 37 |
Correct |
3 ms |
10024 KB |
Output is correct |
| 38 |
Incorrect |
1 ms |
10024 KB |
Output isn't correct |
| 39 |
Correct |
3 ms |
10024 KB |
Output is correct |
| 40 |
Incorrect |
1 ms |
10024 KB |
Output isn't correct |
| 41 |
Correct |
3 ms |
10024 KB |
Output is correct |
| 42 |
Correct |
785 ms |
10024 KB |
Output is correct |
| 43 |
Incorrect |
2 ms |
10024 KB |
Output isn't correct |
| 44 |
Execution timed out |
1076 ms |
10024 KB |
Time limit exceeded |
| 45 |
Incorrect |
2 ms |
10024 KB |
Output isn't correct |
| 46 |
Incorrect |
2 ms |
10024 KB |
Output isn't correct |
| 47 |
Incorrect |
2 ms |
10024 KB |
Output isn't correct |
| 48 |
Incorrect |
2 ms |
10024 KB |
Output isn't correct |
| 49 |
Incorrect |
1 ms |
10024 KB |
Output isn't correct |
| 50 |
Incorrect |
2 ms |
10024 KB |
Output isn't correct |
| 51 |
Incorrect |
1 ms |
10024 KB |
Output isn't correct |
| 52 |
Incorrect |
2 ms |
10024 KB |
Output isn't correct |
| 53 |
Incorrect |
2 ms |
10024 KB |
Output isn't correct |
| 54 |
Incorrect |
1 ms |
10024 KB |
Output isn't correct |
| 55 |
Incorrect |
1 ms |
10024 KB |
Output isn't correct |
| 56 |
Incorrect |
1 ms |
10024 KB |
Output isn't correct |
| 57 |
Incorrect |
1 ms |
10024 KB |
Output isn't correct |
| 58 |
Incorrect |
1 ms |
10024 KB |
Output isn't correct |
| 59 |
Incorrect |
1 ms |
10024 KB |
Output isn't correct |
| 60 |
Incorrect |
2 ms |
10024 KB |
Output isn't correct |
| 61 |
Incorrect |
1 ms |
10024 KB |
Output isn't correct |
| 62 |
Incorrect |
1 ms |
10024 KB |
Output isn't correct |
| 63 |
Incorrect |
2 ms |
10024 KB |
Output isn't correct |
| 64 |
Incorrect |
2 ms |
10024 KB |
Output isn't correct |
| 65 |
Incorrect |
2 ms |
10024 KB |
Output isn't correct |
| 66 |
Incorrect |
1 ms |
10024 KB |
Output isn't correct |
| 67 |
Incorrect |
2 ms |
10024 KB |
Output isn't correct |
| 68 |
Incorrect |
2 ms |
10024 KB |
Output isn't correct |
| 69 |
Incorrect |
2 ms |
10024 KB |
Output isn't correct |
| 70 |
Incorrect |
2 ms |
10024 KB |
Output isn't correct |
| 71 |
Incorrect |
2 ms |
10024 KB |
Output isn't correct |
| 72 |
Incorrect |
2 ms |
10024 KB |
Output isn't correct |
| 73 |
Incorrect |
2 ms |
10024 KB |
Output isn't correct |
| 74 |
Incorrect |
2 ms |
10024 KB |
Output isn't correct |
| 75 |
Incorrect |
2 ms |
10024 KB |
Output isn't correct |
| 76 |
Incorrect |
2 ms |
10024 KB |
Output isn't correct |
| 77 |
Incorrect |
2 ms |
10024 KB |
Output isn't correct |
| 78 |
Incorrect |
2 ms |
10024 KB |
Output isn't correct |
| 79 |
Incorrect |
2 ms |
10024 KB |
Output isn't correct |
| 80 |
Incorrect |
2 ms |
10024 KB |
Output isn't correct |
| 81 |
Incorrect |
2 ms |
10024 KB |
Output isn't correct |
| 82 |
Incorrect |
2 ms |
10024 KB |
Output isn't correct |
| 83 |
Incorrect |
2 ms |
10024 KB |
Output isn't correct |
| 84 |
Incorrect |
2 ms |
10024 KB |
Output isn't correct |
| 85 |
Incorrect |
2 ms |
10024 KB |
Output isn't correct |
| 86 |
Incorrect |
2 ms |
10024 KB |
Output isn't correct |
| 87 |
Incorrect |
2 ms |
10024 KB |
Output isn't correct |
| 88 |
Incorrect |
2 ms |
10024 KB |
Output isn't correct |
| 89 |
Incorrect |
2 ms |
10024 KB |
Output isn't correct |
| 90 |
Incorrect |
2 ms |
10024 KB |
Output isn't correct |
| 91 |
Incorrect |
2 ms |
10024 KB |
Output isn't correct |
| 92 |
Incorrect |
2 ms |
10024 KB |
Output isn't correct |
| 93 |
Incorrect |
2 ms |
10024 KB |
Output isn't correct |
| 94 |
Incorrect |
2 ms |
10024 KB |
Output isn't correct |
| 95 |
Incorrect |
2 ms |
10024 KB |
Output isn't correct |
| 96 |
Incorrect |
1 ms |
10024 KB |
Output isn't correct |
| 97 |
Incorrect |
1 ms |
10024 KB |
Output isn't correct |
| 98 |
Incorrect |
2 ms |
10024 KB |
Output isn't correct |
| 99 |
Incorrect |
1 ms |
10024 KB |
Output isn't correct |
| 100 |
Incorrect |
2 ms |
10024 KB |
Output isn't correct |
