#pragma GCC optimize("O3");
#include <bits/stdc++.h>
#define ll long long
#define ull unsigned long long
#define oo 1e9
#define pii pair<int, int>
using namespace std;
int n, m, q;
const int MAX = 505;
bitset<MAX * MAX> st, can;
int main()
{
cin >> n >> m >> q;
for (int i = 0; i < n; i++)
{
string s; cin >> s;
can[i * (m + 2)] = 0;
can[(i + 1) * (m + 2) - 1] = 0;
for (int j = 1; j <= m; j++)
{
can[i * (m + 2) + j] = s[j - 1] == '.';
}
}
st = can;
string s; cin >> s;
for (int i = 0; i < q; i++)
{
if(s[i] == 'W'){
st >>= 1;
}
else if(s[i] == 'S'){
st <<= m + 2;
}
else if(s[i] == 'E'){
st <<= 1;
}
else if(s[i] == 'N'){
st >>= m + 2;
}
else{
st = (st << 1) | (st >> 1) | (st << (m + 2)) | (st >> (m + 2));
}
st &= can;
}
cout << st.count() << '\n';
}
Compilation message
nautilus.cpp:1:27: error: '#pragma GCC optimize' string is badly formed
1 | #pragma GCC optimize("O3");
| ^
