#include <bits/stdc++.h>
using namespace std;
const int N = 505;
int n, m, b;
char a[N][N];
set <pair <int, pair <int,int> > > s;
char slj[10] = {'N', 'E', 'S', 'W', 'N', 'E', 'S', 'W'};
int dx[4] = {-1, 0, 1, 0};
int dy[4] = {0, 1, 0, -1};
int main(){
cin >> n >> m;
for (int i = 0; i < n; i++){
for (int j = 0; j < m; j++){
cin >> a[i][j];
}
}
s.insert({0,{0,0}});
int dist[N][N];
memset(dist, -1, sizeof(dist));
while (s.size() > 0){
//cout<<"\n";
//cout<<s.begin()->first<<" "<<s.begin()->second.first<<" "<<s.begin()->second.second<<"\n";
int x = s.begin()->second.first;
int y = s.begin()->second.second;
b=s.begin()->first;
s.erase(s.begin());
if(dist[x][y]!=-1) continue;
dist[x][y] = b;
if(a[x][y]=='X') continue;
//cout<<x<<" "<<y<<" "<<dist[x][y]<<"\n";
for (int i = 0; i < 4; i++){
int nx = x + dx[i];
int ny = y + dy[i];
//if(x==0 && y==0) cout<<nx<<" a "<<ny<<" "<<dist[nx][ny]<<"\n";
if (nx >= n or ny >= m) continue;
if (nx < 0 or ny < 0) continue;
if (dist[nx][ny] != -1) continue;
int ud = 0;
bool p = 0;
for (int j = 0; j < 4; j++){
if (p) break;
if (a[x][y] == slj[j]){
for (int k = j; k < 8; k++){
if (slj[k] == slj[i]) p = 1;
if (p) break;
ud++;
}
}
}
//cout<<dist[x][y]+ud<<" "<<nx<<" "<<ny<<"\n";
s.insert({dist[x][y] + ud,{nx,ny}});
}
}
cout << dist[n-1][m-1];
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
1236 KB |
Output is correct |
2 |
Correct |
1 ms |
1308 KB |
Output is correct |
3 |
Correct |
1 ms |
1236 KB |
Output is correct |
4 |
Correct |
1 ms |
1236 KB |
Output is correct |
5 |
Correct |
1 ms |
1236 KB |
Output is correct |
6 |
Correct |
1 ms |
1236 KB |
Output is correct |
7 |
Correct |
1 ms |
1236 KB |
Output is correct |
8 |
Correct |
1 ms |
1236 KB |
Output is correct |
9 |
Correct |
1 ms |
1236 KB |
Output is correct |
10 |
Correct |
1 ms |
1304 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
1236 KB |
Output is correct |
2 |
Correct |
1 ms |
1308 KB |
Output is correct |
3 |
Correct |
1 ms |
1236 KB |
Output is correct |
4 |
Correct |
1 ms |
1236 KB |
Output is correct |
5 |
Correct |
1 ms |
1236 KB |
Output is correct |
6 |
Correct |
1 ms |
1236 KB |
Output is correct |
7 |
Correct |
1 ms |
1236 KB |
Output is correct |
8 |
Correct |
1 ms |
1236 KB |
Output is correct |
9 |
Correct |
1 ms |
1236 KB |
Output is correct |
10 |
Correct |
1 ms |
1304 KB |
Output is correct |
11 |
Correct |
1 ms |
1236 KB |
Output is correct |
12 |
Correct |
1 ms |
1236 KB |
Output is correct |
13 |
Correct |
1 ms |
1308 KB |
Output is correct |
14 |
Correct |
1 ms |
1304 KB |
Output is correct |
15 |
Correct |
1 ms |
1236 KB |
Output is correct |
16 |
Correct |
1 ms |
1236 KB |
Output is correct |
17 |
Correct |
1 ms |
1236 KB |
Output is correct |
18 |
Correct |
1 ms |
1236 KB |
Output is correct |
19 |
Correct |
1 ms |
1300 KB |
Output is correct |
20 |
Correct |
1 ms |
1236 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
1236 KB |
Output is correct |
2 |
Correct |
1 ms |
1312 KB |
Output is correct |
3 |
Correct |
1 ms |
1304 KB |
Output is correct |
4 |
Correct |
1 ms |
1304 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
1308 KB |
Output is correct |
2 |
Correct |
1 ms |
1236 KB |
Output is correct |
3 |
Correct |
1 ms |
1300 KB |
Output is correct |
4 |
Correct |
1 ms |
1236 KB |
Output is correct |
5 |
Correct |
1 ms |
1236 KB |
Output is correct |
6 |
Correct |
1 ms |
1236 KB |
Output is correct |
7 |
Correct |
1 ms |
1308 KB |
Output is correct |
8 |
Correct |
1 ms |
1364 KB |
Output is correct |
9 |
Correct |
1 ms |
1236 KB |
Output is correct |
10 |
Correct |
1 ms |
1236 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
1236 KB |
Output is correct |
2 |
Correct |
1 ms |
1308 KB |
Output is correct |
3 |
Correct |
1 ms |
1236 KB |
Output is correct |
4 |
Correct |
1 ms |
1236 KB |
Output is correct |
5 |
Correct |
1 ms |
1236 KB |
Output is correct |
6 |
Correct |
1 ms |
1236 KB |
Output is correct |
7 |
Correct |
1 ms |
1236 KB |
Output is correct |
8 |
Correct |
1 ms |
1236 KB |
Output is correct |
9 |
Correct |
1 ms |
1236 KB |
Output is correct |
10 |
Correct |
1 ms |
1304 KB |
Output is correct |
11 |
Correct |
1 ms |
1236 KB |
Output is correct |
12 |
Correct |
1 ms |
1236 KB |
Output is correct |
13 |
Correct |
1 ms |
1308 KB |
Output is correct |
14 |
Correct |
1 ms |
1304 KB |
Output is correct |
15 |
Correct |
1 ms |
1236 KB |
Output is correct |
16 |
Correct |
1 ms |
1236 KB |
Output is correct |
17 |
Correct |
1 ms |
1236 KB |
Output is correct |
18 |
Correct |
1 ms |
1236 KB |
Output is correct |
19 |
Correct |
1 ms |
1300 KB |
Output is correct |
20 |
Correct |
1 ms |
1236 KB |
Output is correct |
21 |
Correct |
1 ms |
1236 KB |
Output is correct |
22 |
Correct |
1 ms |
1312 KB |
Output is correct |
23 |
Correct |
1 ms |
1304 KB |
Output is correct |
24 |
Correct |
1 ms |
1304 KB |
Output is correct |
25 |
Correct |
1 ms |
1308 KB |
Output is correct |
26 |
Correct |
1 ms |
1236 KB |
Output is correct |
27 |
Correct |
1 ms |
1300 KB |
Output is correct |
28 |
Correct |
1 ms |
1236 KB |
Output is correct |
29 |
Correct |
1 ms |
1236 KB |
Output is correct |
30 |
Correct |
1 ms |
1236 KB |
Output is correct |
31 |
Correct |
1 ms |
1308 KB |
Output is correct |
32 |
Correct |
1 ms |
1364 KB |
Output is correct |
33 |
Correct |
1 ms |
1236 KB |
Output is correct |
34 |
Correct |
1 ms |
1236 KB |
Output is correct |
35 |
Correct |
7 ms |
1364 KB |
Output is correct |
36 |
Correct |
1 ms |
1308 KB |
Output is correct |
37 |
Correct |
9 ms |
1316 KB |
Output is correct |
38 |
Correct |
3 ms |
1364 KB |
Output is correct |
39 |
Correct |
80 ms |
1900 KB |
Output is correct |
40 |
Correct |
78 ms |
1840 KB |
Output is correct |
41 |
Correct |
14 ms |
1748 KB |
Output is correct |
42 |
Correct |
91 ms |
1988 KB |
Output is correct |
43 |
Correct |
84 ms |
17308 KB |
Output is correct |
44 |
Correct |
15 ms |
1748 KB |
Output is correct |