| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 53467 |
2018-06-30T05:31:50 Z |
김세빈(#1419) |
Mecho (IOI09_mecho) |
C++11 |
|
251 ms |
9468 KB |
#include <bits/stdc++.h>
using namespace std;
char str[808][808];
int D[808][808], P[808][808], Q[1010101];
bool chk[808][808];
int n,k,x,y,z,w,f,r;
int dx[4] = {1, 0, -1, 0}, dy[4] = {0, 1, 0, -1};
int main()
{
int i,j,p,q,a,b,s,e;
scanf("%d%d", &n, &k);
for(i=0;i<n;i++){
scanf("%s", str[i]);
for(j=0;j<n;j++){
D[i][j] = 1e9;
if(str[i][j] == 'H'){
D[i][j] = 0;
chk[i][j] = 1;
Q[++f] = i*n+j;
}
else if(str[i][j] == 'M') x = i, y = j;
else if(str[i][j] == 'D') z = i, w = j;
}
}
for(;r<f;){
p = Q[++r] / n, q = Q[r] % n;
for(i=0;i<4;i++){
a = p + dx[i], b = q + dy[i];
if(0 <= a && a < n && 0 <= b && b < n && !chk[a][b] && (str[a][b] == 'G' || str[a][b] == 'M')){
chk[a][b] = 1;
D[a][b] = D[p][q] + k;
Q[++f] = a*n+b;
}
}
}
for(s=0,e=n*n;s<=e;){
for(i=0;i<n;i++){
for(j=0;j<n;j++){
chk[i][j] = 0;
}
}
f = r = 0;
P[x][y] = (s+e>>1) * k;
if(D[x][y] > P[x][y]){
chk[x][y] = 1;
Q[++f] = x*n+y;
}
for(;r<f;){
p = Q[++r] / n, q = Q[r] % n;
for(i=0;i<4;i++){
a = p + dx[i], b = q + dy[i];
if(0 <= a && a < n && 0 <= b && b < n && D[a][b] > P[p][q] + 1 && !chk[a][b] && (str[a][b] == 'G' || str[a][b] == 'D')){
chk[a][b] = 1;
P[a][b] = P[p][q] + 1;
Q[++f] = a*n+b;
}
}
}
if(chk[z][w]) s = (s+e>>1) + 1;
else e = (s+e>>1) - 1;
}
printf("%d\n", s-1);
return 0;
}
Compilation message
mecho.cpp: In function 'int main()':
mecho.cpp:53:15: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
P[x][y] = (s+e>>1) * k;
~^~
mecho.cpp:72:23: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
if(chk[z][w]) s = (s+e>>1) + 1;
~^~
mecho.cpp:73:14: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
else e = (s+e>>1) - 1;
~^~
mecho.cpp:15:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d%d", &n, &k);
~~~~~^~~~~~~~~~~~~~~~
mecho.cpp:18:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%s", str[i]);
~~~~~^~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 ms |
376 KB |
Output is correct |
| 2 |
Correct |
2 ms |
376 KB |
Output is correct |
| 3 |
Correct |
2 ms |
544 KB |
Output is correct |
| 4 |
Correct |
2 ms |
544 KB |
Output is correct |
| 5 |
Correct |
2 ms |
708 KB |
Output is correct |
| 6 |
Correct |
2 ms |
708 KB |
Output is correct |
| 7 |
Correct |
108 ms |
8392 KB |
Output is correct |
| 8 |
Correct |
2 ms |
8392 KB |
Output is correct |
| 9 |
Correct |
2 ms |
8392 KB |
Output is correct |
| 10 |
Correct |
2 ms |
8392 KB |
Output is correct |
| 11 |
Correct |
2 ms |
8392 KB |
Output is correct |
| 12 |
Correct |
3 ms |
8392 KB |
Output is correct |
| 13 |
Correct |
3 ms |
8392 KB |
Output is correct |
| 14 |
Correct |
3 ms |
8392 KB |
Output is correct |
| 15 |
Correct |
3 ms |
8392 KB |
Output is correct |
| 16 |
Correct |
2 ms |
8392 KB |
Output is correct |
| 17 |
Correct |
2 ms |
8392 KB |
Output is correct |
| 18 |
Correct |
2 ms |
8392 KB |
Output is correct |
| 19 |
Correct |
3 ms |
8392 KB |
Output is correct |
| 20 |
Correct |
2 ms |
8392 KB |
Output is correct |
| 21 |
Correct |
3 ms |
8392 KB |
Output is correct |
| 22 |
Correct |
3 ms |
8392 KB |
Output is correct |
| 23 |
Correct |
3 ms |
8392 KB |
Output is correct |
| 24 |
Correct |
3 ms |
8392 KB |
Output is correct |
| 25 |
Correct |
3 ms |
8392 KB |
Output is correct |
| 26 |
Correct |
2 ms |
8392 KB |
Output is correct |
| 27 |
Correct |
3 ms |
8392 KB |
Output is correct |
| 28 |
Correct |
3 ms |
8392 KB |
Output is correct |
| 29 |
Correct |
3 ms |
8392 KB |
Output is correct |
| 30 |
Correct |
3 ms |
8392 KB |
Output is correct |
| 31 |
Correct |
2 ms |
8392 KB |
Output is correct |
| 32 |
Correct |
3 ms |
8392 KB |
Output is correct |
| 33 |
Correct |
8 ms |
8392 KB |
Output is correct |
| 34 |
Correct |
10 ms |
8392 KB |
Output is correct |
| 35 |
Correct |
34 ms |
8392 KB |
Output is correct |
| 36 |
Correct |
11 ms |
8392 KB |
Output is correct |
| 37 |
Correct |
11 ms |
8392 KB |
Output is correct |
| 38 |
Correct |
64 ms |
8392 KB |
Output is correct |
| 39 |
Correct |
11 ms |
8392 KB |
Output is correct |
| 40 |
Correct |
14 ms |
8392 KB |
Output is correct |
| 41 |
Correct |
53 ms |
8392 KB |
Output is correct |
| 42 |
Correct |
15 ms |
8392 KB |
Output is correct |
| 43 |
Correct |
15 ms |
8392 KB |
Output is correct |
| 44 |
Correct |
68 ms |
8392 KB |
Output is correct |
| 45 |
Correct |
16 ms |
8392 KB |
Output is correct |
| 46 |
Correct |
19 ms |
8392 KB |
Output is correct |
| 47 |
Correct |
85 ms |
8392 KB |
Output is correct |
| 48 |
Correct |
19 ms |
8392 KB |
Output is correct |
| 49 |
Correct |
21 ms |
8392 KB |
Output is correct |
| 50 |
Correct |
129 ms |
8392 KB |
Output is correct |
| 51 |
Correct |
20 ms |
8392 KB |
Output is correct |
| 52 |
Correct |
27 ms |
8392 KB |
Output is correct |
| 53 |
Correct |
143 ms |
8392 KB |
Output is correct |
| 54 |
Correct |
23 ms |
8392 KB |
Output is correct |
| 55 |
Correct |
26 ms |
8392 KB |
Output is correct |
| 56 |
Correct |
147 ms |
8392 KB |
Output is correct |
| 57 |
Correct |
29 ms |
8392 KB |
Output is correct |
| 58 |
Correct |
30 ms |
8392 KB |
Output is correct |
| 59 |
Correct |
169 ms |
8392 KB |
Output is correct |
| 60 |
Correct |
29 ms |
8392 KB |
Output is correct |
| 61 |
Correct |
39 ms |
8392 KB |
Output is correct |
| 62 |
Correct |
219 ms |
8912 KB |
Output is correct |
| 63 |
Correct |
138 ms |
8912 KB |
Output is correct |
| 64 |
Correct |
251 ms |
8912 KB |
Output is correct |
| 65 |
Correct |
204 ms |
8912 KB |
Output is correct |
| 66 |
Correct |
159 ms |
8912 KB |
Output is correct |
| 67 |
Correct |
147 ms |
8912 KB |
Output is correct |
| 68 |
Correct |
65 ms |
8912 KB |
Output is correct |
| 69 |
Correct |
66 ms |
8912 KB |
Output is correct |
| 70 |
Correct |
50 ms |
8912 KB |
Output is correct |
| 71 |
Correct |
55 ms |
8912 KB |
Output is correct |
| 72 |
Correct |
41 ms |
8912 KB |
Output is correct |
| 73 |
Correct |
46 ms |
9400 KB |
Output is correct |
| 74 |
Correct |
74 ms |
9424 KB |
Output is correct |
| 75 |
Correct |
118 ms |
9440 KB |
Output is correct |
| 76 |
Correct |
79 ms |
9440 KB |
Output is correct |
| 77 |
Correct |
84 ms |
9468 KB |
Output is correct |
| 78 |
Correct |
105 ms |
9468 KB |
Output is correct |
| 79 |
Correct |
65 ms |
9468 KB |
Output is correct |
| 80 |
Correct |
78 ms |
9468 KB |
Output is correct |
| 81 |
Correct |
97 ms |
9468 KB |
Output is correct |
| 82 |
Correct |
93 ms |
9468 KB |
Output is correct |
| 83 |
Correct |
116 ms |
9468 KB |
Output is correct |
| 84 |
Correct |
102 ms |
9468 KB |
Output is correct |
| 85 |
Correct |
108 ms |
9468 KB |
Output is correct |
| 86 |
Correct |
112 ms |
9468 KB |
Output is correct |
| 87 |
Correct |
141 ms |
9468 KB |
Output is correct |
| 88 |
Correct |
111 ms |
9468 KB |
Output is correct |
| 89 |
Correct |
126 ms |
9468 KB |
Output is correct |
| 90 |
Correct |
146 ms |
9468 KB |
Output is correct |
| 91 |
Correct |
118 ms |
9468 KB |
Output is correct |
| 92 |
Correct |
139 ms |
9468 KB |
Output is correct |
