#include <bits/stdc++.h>
using namespace std ;
bool b[805][805] , bm[805][805];
string s[805] ;
int fuck , X1 , Y1 , X2 , Y2 , n , ss , a[805][805] , H[805][805];
queue <pair <int , int > > q , qm;
void good(int x , int y , int low) {
H[x][y]=low ;
b[x][y]=1 ;
// if(y-1>=0 && b[x][y-1]==0) q.push(make_pair(x , y-1)) ;
// if(y+1 < n && b[x][y+1]==0) q.push(make_pair(x , y+1)) ;
// if(x-1>=0 && b[x-1][y]==0) q.push(make_pair(x-1 , y)) ;
// if(x+1 < n && b[x+1][y]==0) q.push(make_pair(x+1 , y)) ;
}
bool pro(int mid) {
int ll=0 ;
while (qm.empty()==0) {
int siz=qm.size();
int cnt=0 ;
while (siz--) {
cnt++ ;
int x=qm.front().first ;
int y=qm.front().second ;
qm.pop() ;
if(x==X2 && y==Y2) {
fuck = cnt ;
break ;
}
bm[x][y] = 1 ;
if(y-1>=0 && bm[x][y-1]==0 && H[x][y-1] < (cnt/ss)+mid) qm.push(make_pair(x , y-1)) ;
if(y+1 < n && bm[x][y+1]==0 && H[x][y+1] < (cnt/ss)+mid) qm.push(make_pair(x , y+1)) ;
if(x-1>=0 && bm[x-1][y]==0 && H[x-1][y] < (cnt/ss)+mid) qm.push(make_pair(x-1 , y)) ;
if(x+1 < n && bm[x+1][y]==0 && H[x+1][y] < (cnt/ss)+mid) qm.push(make_pair(x+1 , y)) ;
}
if(fuck%ss==0 && fuck!=-1) {
if(cnt/ss+mid > H[X2][Y2]) return 1 ;
else return 0 ;
}
if(fuck%ss!=0 && fuck!=-1) {
if(fuck/ss+1+mid > H[X2][Y2]) return 1 ;
else return 0 ;
}
}
}
int main(){
fuck = -1 ;
cin >> n >> ss ;
for(int i=0 ; i<n ; i++){
cin >> s[i] ;
for(int j=0 ; j<n ; j++){
if(s[i][j]=='T') {
b[i][j]=1 ;
bm[i][j]=1 ;
}
if(s[i][j]=='H') {
q.push(make_pair(i , j)) ;
b[i][j]=1 ;
bm[i][j] = 1 ;
}
if(s[i][j]=='M'){
X2=i ;
Y2=j ;
}
if(s[i][j]=='D'){
X1=i ;
Y1=j ;
b[i][j]=1;
qm.push(make_pair(X1 , Y1)) ;
}
}
}
int cnt = 0 ;
while (q.empty()==0) {
int siz=q.size() ;
while (siz--){
int x=q.front().first ;
int y=q.front().second ;
b[x][y]=1 ;
q.pop() ;
if(y-1>=0 && b[x][y-1]==0) {
q.push(make_pair(x , y-1)) ;
b[x][y-1]=1 ;
}
if(y+1 < n && b[x][y+1]==0) {
q.push(make_pair(x , y+1)) ;
b[x][y+1] = 1 ;
}
if(x-1>=0 && b[x-1][y]==0) {
q.push(make_pair(x-1 , y)) ;
b[x-1][y] = 1 ;
}
if(x+1 < n && b[x+1][y]==0) {
q.push(make_pair(x+1 , y)) ;
b[x+1][y]=1 ;
}
good (x , y , cnt) ;
}
cnt++ ;
}
//
// for(int i=0 ; i<n ;i++){
// for(int j=0 ; j<n ; j++){
// printf("%3d",H[i][j]) ;
// }
// cout << endl ;
// }
//
int m1=0 , m2=H[X2][Y2] ;
while (m1 != m2) {
int mid=(m1+m2+1)/2 ;
if(1 == pro(mid) ) {
m1=mid ;
}
else {
m2=mid-1 ;
}
}
if(m2==0) {
cout << -1 << endl ;
return 0 ;
}
else {
cout << m2 << endl ;
}
}
Compilation message
mecho.cpp: In function 'bool pro(int)':
mecho.cpp:19:6: warning: unused variable 'll' [-Wunused-variable]
int ll=0 ;
^~
mecho.cpp:47:1: warning: control reaches end of non-void function [-Wreturn-type]
}
^
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Incorrect |
2 ms |
384 KB |
Output isn't correct |
| 2 |
Incorrect |
3 ms |
384 KB |
Output isn't correct |
| 3 |
Correct |
2 ms |
384 KB |
Output is correct |
| 4 |
Incorrect |
2 ms |
384 KB |
Output isn't correct |
| 5 |
Incorrect |
3 ms |
384 KB |
Output isn't correct |
| 6 |
Incorrect |
2 ms |
384 KB |
Output isn't correct |
| 7 |
Runtime error |
292 ms |
66560 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 8 |
Incorrect |
2 ms |
384 KB |
Output isn't correct |
| 9 |
Incorrect |
2 ms |
384 KB |
Output isn't correct |
| 10 |
Incorrect |
2 ms |
384 KB |
Output isn't correct |
| 11 |
Incorrect |
2 ms |
384 KB |
Output isn't correct |
| 12 |
Incorrect |
3 ms |
640 KB |
Output isn't correct |
| 13 |
Incorrect |
2 ms |
640 KB |
Output isn't correct |
| 14 |
Runtime error |
328 ms |
66560 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 15 |
Incorrect |
3 ms |
512 KB |
Output isn't correct |
| 16 |
Incorrect |
3 ms |
512 KB |
Output isn't correct |
| 17 |
Incorrect |
3 ms |
512 KB |
Output isn't correct |
| 18 |
Incorrect |
2 ms |
512 KB |
Output isn't correct |
| 19 |
Incorrect |
2 ms |
512 KB |
Output isn't correct |
| 20 |
Incorrect |
3 ms |
512 KB |
Output isn't correct |
| 21 |
Incorrect |
3 ms |
512 KB |
Output isn't correct |
| 22 |
Incorrect |
3 ms |
512 KB |
Output isn't correct |
| 23 |
Incorrect |
3 ms |
640 KB |
Output isn't correct |
| 24 |
Incorrect |
3 ms |
640 KB |
Output isn't correct |
| 25 |
Incorrect |
3 ms |
640 KB |
Output isn't correct |
| 26 |
Incorrect |
2 ms |
640 KB |
Output isn't correct |
| 27 |
Incorrect |
3 ms |
640 KB |
Output isn't correct |
| 28 |
Incorrect |
3 ms |
640 KB |
Output isn't correct |
| 29 |
Incorrect |
2 ms |
640 KB |
Output isn't correct |
| 30 |
Incorrect |
4 ms |
768 KB |
Output isn't correct |
| 31 |
Incorrect |
3 ms |
768 KB |
Output isn't correct |
| 32 |
Incorrect |
3 ms |
768 KB |
Output isn't correct |
| 33 |
Incorrect |
9 ms |
2176 KB |
Output isn't correct |
| 34 |
Incorrect |
9 ms |
2176 KB |
Output isn't correct |
| 35 |
Runtime error |
246 ms |
66560 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 36 |
Incorrect |
10 ms |
2432 KB |
Output isn't correct |
| 37 |
Incorrect |
11 ms |
2432 KB |
Output isn't correct |
| 38 |
Runtime error |
327 ms |
66560 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 39 |
Incorrect |
13 ms |
2688 KB |
Output isn't correct |
| 40 |
Incorrect |
18 ms |
2712 KB |
Output isn't correct |
| 41 |
Runtime error |
305 ms |
66560 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 42 |
Incorrect |
19 ms |
3200 KB |
Output isn't correct |
| 43 |
Incorrect |
15 ms |
3200 KB |
Output isn't correct |
| 44 |
Runtime error |
300 ms |
66560 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 45 |
Incorrect |
17 ms |
3456 KB |
Output isn't correct |
| 46 |
Incorrect |
17 ms |
3456 KB |
Output isn't correct |
| 47 |
Runtime error |
296 ms |
66560 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 48 |
Incorrect |
21 ms |
3836 KB |
Output isn't correct |
| 49 |
Incorrect |
19 ms |
3792 KB |
Output isn't correct |
| 50 |
Runtime error |
278 ms |
66560 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 51 |
Incorrect |
28 ms |
3964 KB |
Output isn't correct |
| 52 |
Incorrect |
25 ms |
4096 KB |
Output isn't correct |
| 53 |
Runtime error |
296 ms |
66560 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 54 |
Incorrect |
27 ms |
4344 KB |
Output isn't correct |
| 55 |
Incorrect |
28 ms |
4344 KB |
Output isn't correct |
| 56 |
Runtime error |
298 ms |
66560 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 57 |
Incorrect |
28 ms |
4608 KB |
Output isn't correct |
| 58 |
Incorrect |
33 ms |
4600 KB |
Output isn't correct |
| 59 |
Runtime error |
300 ms |
66560 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 60 |
Incorrect |
34 ms |
4984 KB |
Output isn't correct |
| 61 |
Incorrect |
45 ms |
4856 KB |
Output isn't correct |
| 62 |
Runtime error |
303 ms |
66560 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 63 |
Incorrect |
49 ms |
4984 KB |
Output isn't correct |
| 64 |
Incorrect |
54 ms |
4984 KB |
Output isn't correct |
| 65 |
Incorrect |
41 ms |
4856 KB |
Output isn't correct |
| 66 |
Incorrect |
45 ms |
4856 KB |
Output isn't correct |
| 67 |
Correct |
42 ms |
4880 KB |
Output is correct |
| 68 |
Incorrect |
57 ms |
4984 KB |
Output isn't correct |
| 69 |
Incorrect |
45 ms |
4864 KB |
Output isn't correct |
| 70 |
Incorrect |
44 ms |
4956 KB |
Output isn't correct |
| 71 |
Incorrect |
47 ms |
5056 KB |
Output isn't correct |
| 72 |
Incorrect |
47 ms |
4864 KB |
Output isn't correct |
| 73 |
Incorrect |
42 ms |
5240 KB |
Output isn't correct |
| 74 |
Incorrect |
43 ms |
5240 KB |
Output isn't correct |
| 75 |
Incorrect |
43 ms |
5248 KB |
Output isn't correct |
| 76 |
Incorrect |
42 ms |
5248 KB |
Output isn't correct |
| 77 |
Incorrect |
40 ms |
5112 KB |
Output isn't correct |
| 78 |
Runtime error |
272 ms |
66560 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 79 |
Runtime error |
280 ms |
66560 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 80 |
Runtime error |
280 ms |
66560 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 81 |
Runtime error |
311 ms |
66560 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 82 |
Runtime error |
267 ms |
66560 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 83 |
Runtime error |
285 ms |
66560 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 84 |
Runtime error |
294 ms |
66560 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 85 |
Incorrect |
59 ms |
5112 KB |
Output isn't correct |
| 86 |
Runtime error |
273 ms |
66560 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 87 |
Runtime error |
280 ms |
66560 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 88 |
Runtime error |
317 ms |
66560 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 89 |
Runtime error |
298 ms |
66560 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 90 |
Runtime error |
282 ms |
66560 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 91 |
Runtime error |
284 ms |
66560 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 92 |
Runtime error |
275 ms |
66560 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
