#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define all(aaa) aaa.begin(), aaa.end()
const int N = 505;
char s[N][N];
bitset<N> dp[2][N], water[N];
int r, c, m;
void horizontalShift(int i, int d) {
for (int x = 0; x < r; x++) {
if (d < 0) {
dp[i ^ 1][x] |= dp[i][x] >> -d;
}
else {
dp[i ^ 1][x] |= dp[i][x] << d;
}
}
}
void verticalShift(int i, int d) {
for (int x = 0; x < r; x++) {
if (x + d >= 0 && x + d < r)
dp[i ^ 1][x + d] |= dp[i][x];
}
}
signed main() {
#ifdef HOME
freopen("input.txt", "r", stdin);
freopen("output.txt", "w", stdout);
#endif
ios_base::sync_with_stdio(0);
cin.tie(0);
cin >> r >> c >> m;
for (int i = 0; i < r; i++) {
cin >> s[i];
for (int j = 0; j < c; j++) {
if (s[i][j] == '.') {
water[i][j] = 1;
dp[0][i][j] = 1;
}
}
}
string s;
cin >> s;
for (int i = 0, j = 0; i < m; i++, j ^= 1) {
for (int k = 0; k < r; k++) {
dp[j ^ 1][k].reset();
}
if (s[i] == 'W') {
horizontalShift(j, -1);
}
else if (s[i] == 'E') {
horizontalShift(j, 1);
}
else if (s[i] == 'N') {
verticalShift(j, -1);
}
else if (s[i] == 'S') {
verticalShift(j, 1);
}
else {
horizontalShift(j, 1);
horizontalShift(j, -1);
verticalShift(j, -1);
verticalShift(j, 1);
}
for (int k = 0; k < r; k++) {
dp[j ^ 1][k] &= water[k];
}
}
int ans = 0;
for (int i = 0; i < r; i++)
ans += dp[m & 1][i].count();
cout << ans;
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
504 KB |
Output is correct |
3 |
Correct |
2 ms |
504 KB |
Output is correct |
4 |
Correct |
2 ms |
504 KB |
Output is correct |
5 |
Correct |
2 ms |
380 KB |
Output is correct |
6 |
Correct |
2 ms |
248 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
504 KB |
Output is correct |
3 |
Correct |
2 ms |
504 KB |
Output is correct |
4 |
Correct |
2 ms |
504 KB |
Output is correct |
5 |
Correct |
2 ms |
380 KB |
Output is correct |
6 |
Correct |
2 ms |
248 KB |
Output is correct |
7 |
Correct |
2 ms |
376 KB |
Output is correct |
8 |
Correct |
3 ms |
376 KB |
Output is correct |
9 |
Correct |
3 ms |
376 KB |
Output is correct |
10 |
Correct |
3 ms |
376 KB |
Output is correct |
11 |
Correct |
3 ms |
504 KB |
Output is correct |
12 |
Correct |
3 ms |
504 KB |
Output is correct |
13 |
Correct |
3 ms |
376 KB |
Output is correct |
14 |
Correct |
3 ms |
504 KB |
Output is correct |
15 |
Correct |
3 ms |
376 KB |
Output is correct |
16 |
Correct |
3 ms |
504 KB |
Output is correct |
17 |
Correct |
3 ms |
380 KB |
Output is correct |
18 |
Correct |
3 ms |
508 KB |
Output is correct |
19 |
Correct |
3 ms |
376 KB |
Output is correct |
20 |
Correct |
3 ms |
376 KB |
Output is correct |
21 |
Correct |
3 ms |
376 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
2 ms |
504 KB |
Output is correct |
3 |
Correct |
2 ms |
504 KB |
Output is correct |
4 |
Correct |
2 ms |
504 KB |
Output is correct |
5 |
Correct |
2 ms |
380 KB |
Output is correct |
6 |
Correct |
2 ms |
248 KB |
Output is correct |
7 |
Correct |
2 ms |
376 KB |
Output is correct |
8 |
Correct |
3 ms |
376 KB |
Output is correct |
9 |
Correct |
3 ms |
376 KB |
Output is correct |
10 |
Correct |
3 ms |
376 KB |
Output is correct |
11 |
Correct |
3 ms |
504 KB |
Output is correct |
12 |
Correct |
3 ms |
504 KB |
Output is correct |
13 |
Correct |
3 ms |
376 KB |
Output is correct |
14 |
Correct |
3 ms |
504 KB |
Output is correct |
15 |
Correct |
3 ms |
376 KB |
Output is correct |
16 |
Correct |
3 ms |
504 KB |
Output is correct |
17 |
Correct |
3 ms |
380 KB |
Output is correct |
18 |
Correct |
3 ms |
508 KB |
Output is correct |
19 |
Correct |
3 ms |
376 KB |
Output is correct |
20 |
Correct |
3 ms |
376 KB |
Output is correct |
21 |
Correct |
3 ms |
376 KB |
Output is correct |
22 |
Correct |
114 ms |
992 KB |
Output is correct |
23 |
Correct |
115 ms |
1064 KB |
Output is correct |
24 |
Correct |
112 ms |
1016 KB |
Output is correct |
25 |
Correct |
112 ms |
888 KB |
Output is correct |
26 |
Correct |
111 ms |
1016 KB |
Output is correct |
27 |
Correct |
169 ms |
1016 KB |
Output is correct |
28 |
Correct |
171 ms |
992 KB |
Output is correct |
29 |
Correct |
170 ms |
1016 KB |
Output is correct |
30 |
Correct |
170 ms |
996 KB |
Output is correct |
31 |
Correct |
167 ms |
888 KB |
Output is correct |
32 |
Correct |
213 ms |
996 KB |
Output is correct |
33 |
Correct |
213 ms |
996 KB |
Output is correct |
34 |
Correct |
213 ms |
888 KB |
Output is correct |
35 |
Correct |
213 ms |
992 KB |
Output is correct |
36 |
Correct |
212 ms |
972 KB |
Output is correct |