#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int,int> pii;
#define SZ(x) (int)(x.size())
#define F0(i,n) for(int i=0;i<n;i++)
#define F1(i,n) for(int i=1;i<=n;i++)
#define CL(a,x) memset(x, a, sizeof(x));
#define PR(x) cerr << #x << "=" << (x) << endl;
const int MOD = 1000000007;
const double pi = atan(1.0)*4.0;
const double eps = 1e-8;
const int N = 501;
int i, j, k, m, n;
int a[N];
string s[N];
int DX[]={-1,0,1,0};
int DY[]={0,1,0,-1};
int d[N][N];
string H="NESW";
int main() {
//freopen("x.in", "r", stdin);
cin >> m >> n;
F0(i, m) cin >> s[i];
set<pair<int, pii>> S;
CL(-1, d);
d[0][0] = 0;
S.insert(make_pair(0, pii(0, 0)));
while (!S.empty()) {
pii p = S.begin()->second;
S.erase(S.begin());
if (s[p.first][p.second] == 'X') continue;
F0(k, 4) {
int x = p.first + DX[k], y = p.second + DY[k];
if (x < 0 || x >= m || y < 0 || y >= n) continue;
int d0 = H.find(s[p.first][p.second]);
int cost = (k - d0 + 4) % 4 + d[p.first][p.second];
if (d[x][y] == -1 || d[x][y] > cost) {
d[x][y] = cost;
S.insert(make_pair(cost, pii(x, y)));
}
}
}
cout << d[m-1][n-1] << endl;
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
5 ms |
1280 KB |
Output is correct |
2 |
Correct |
5 ms |
1280 KB |
Output is correct |
3 |
Correct |
5 ms |
1280 KB |
Output is correct |
4 |
Correct |
5 ms |
1280 KB |
Output is correct |
5 |
Correct |
5 ms |
1280 KB |
Output is correct |
6 |
Correct |
5 ms |
1280 KB |
Output is correct |
7 |
Correct |
5 ms |
1280 KB |
Output is correct |
8 |
Correct |
5 ms |
1280 KB |
Output is correct |
9 |
Correct |
5 ms |
1408 KB |
Output is correct |
10 |
Correct |
5 ms |
1408 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
5 ms |
1280 KB |
Output is correct |
2 |
Correct |
5 ms |
1280 KB |
Output is correct |
3 |
Correct |
5 ms |
1280 KB |
Output is correct |
4 |
Correct |
5 ms |
1280 KB |
Output is correct |
5 |
Correct |
5 ms |
1280 KB |
Output is correct |
6 |
Correct |
5 ms |
1280 KB |
Output is correct |
7 |
Correct |
5 ms |
1280 KB |
Output is correct |
8 |
Correct |
5 ms |
1280 KB |
Output is correct |
9 |
Correct |
5 ms |
1408 KB |
Output is correct |
10 |
Correct |
5 ms |
1408 KB |
Output is correct |
11 |
Correct |
5 ms |
1280 KB |
Output is correct |
12 |
Correct |
5 ms |
1280 KB |
Output is correct |
13 |
Correct |
5 ms |
1280 KB |
Output is correct |
14 |
Correct |
5 ms |
1280 KB |
Output is correct |
15 |
Correct |
5 ms |
1280 KB |
Output is correct |
16 |
Correct |
5 ms |
1408 KB |
Output is correct |
17 |
Correct |
5 ms |
1280 KB |
Output is correct |
18 |
Correct |
6 ms |
1536 KB |
Output is correct |
19 |
Correct |
5 ms |
1280 KB |
Output is correct |
20 |
Correct |
5 ms |
1408 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
5 ms |
1280 KB |
Output is correct |
2 |
Correct |
6 ms |
1408 KB |
Output is correct |
3 |
Correct |
5 ms |
1280 KB |
Output is correct |
4 |
Correct |
5 ms |
1280 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
5 ms |
1280 KB |
Output is correct |
2 |
Correct |
5 ms |
1280 KB |
Output is correct |
3 |
Correct |
5 ms |
1280 KB |
Output is correct |
4 |
Correct |
5 ms |
1280 KB |
Output is correct |
5 |
Correct |
7 ms |
1280 KB |
Output is correct |
6 |
Correct |
5 ms |
1408 KB |
Output is correct |
7 |
Correct |
5 ms |
1280 KB |
Output is correct |
8 |
Correct |
5 ms |
1408 KB |
Output is correct |
9 |
Correct |
5 ms |
1280 KB |
Output is correct |
10 |
Correct |
5 ms |
1280 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
5 ms |
1280 KB |
Output is correct |
2 |
Correct |
5 ms |
1280 KB |
Output is correct |
3 |
Correct |
5 ms |
1280 KB |
Output is correct |
4 |
Correct |
5 ms |
1280 KB |
Output is correct |
5 |
Correct |
5 ms |
1280 KB |
Output is correct |
6 |
Correct |
5 ms |
1280 KB |
Output is correct |
7 |
Correct |
5 ms |
1280 KB |
Output is correct |
8 |
Correct |
5 ms |
1280 KB |
Output is correct |
9 |
Correct |
5 ms |
1408 KB |
Output is correct |
10 |
Correct |
5 ms |
1408 KB |
Output is correct |
11 |
Correct |
5 ms |
1280 KB |
Output is correct |
12 |
Correct |
5 ms |
1280 KB |
Output is correct |
13 |
Correct |
5 ms |
1280 KB |
Output is correct |
14 |
Correct |
5 ms |
1280 KB |
Output is correct |
15 |
Correct |
5 ms |
1280 KB |
Output is correct |
16 |
Correct |
5 ms |
1408 KB |
Output is correct |
17 |
Correct |
5 ms |
1280 KB |
Output is correct |
18 |
Correct |
6 ms |
1536 KB |
Output is correct |
19 |
Correct |
5 ms |
1280 KB |
Output is correct |
20 |
Correct |
5 ms |
1408 KB |
Output is correct |
21 |
Correct |
5 ms |
1280 KB |
Output is correct |
22 |
Correct |
6 ms |
1408 KB |
Output is correct |
23 |
Correct |
5 ms |
1280 KB |
Output is correct |
24 |
Correct |
5 ms |
1280 KB |
Output is correct |
25 |
Correct |
5 ms |
1280 KB |
Output is correct |
26 |
Correct |
5 ms |
1280 KB |
Output is correct |
27 |
Correct |
5 ms |
1280 KB |
Output is correct |
28 |
Correct |
5 ms |
1280 KB |
Output is correct |
29 |
Correct |
7 ms |
1280 KB |
Output is correct |
30 |
Correct |
5 ms |
1408 KB |
Output is correct |
31 |
Correct |
5 ms |
1280 KB |
Output is correct |
32 |
Correct |
5 ms |
1408 KB |
Output is correct |
33 |
Correct |
5 ms |
1280 KB |
Output is correct |
34 |
Correct |
5 ms |
1280 KB |
Output is correct |
35 |
Correct |
11 ms |
1408 KB |
Output is correct |
36 |
Correct |
5 ms |
1280 KB |
Output is correct |
37 |
Correct |
13 ms |
1408 KB |
Output is correct |
38 |
Correct |
8 ms |
1408 KB |
Output is correct |
39 |
Correct |
80 ms |
2168 KB |
Output is correct |
40 |
Correct |
82 ms |
2168 KB |
Output is correct |
41 |
Correct |
17 ms |
2048 KB |
Output is correct |
42 |
Correct |
80 ms |
2168 KB |
Output is correct |
43 |
Correct |
129 ms |
17612 KB |
Output is correct |
44 |
Correct |
17 ms |
2048 KB |
Output is correct |