#include<bits/stdc++.h> using namespace std; void local() { #define taskname "" if (fopen(taskname".inp", "r")) { freopen(taskname".inp", "r", stdin); freopen(taskname".out", "w", stdout); } } #define ll long long #define fi first #define se second #define fastio ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0); template<class X, class Y> bool mini(X &a, const Y &b) {return (a > b) ? a = b, true : false;} template<class X, class Y> bool maxi(X &a, const Y &b) {return (a < b) ? a = b, true : false;} const int N = 5e2 + 5; int n, m, k; bitset<N> vis[2][N]; bitset<N> init[N]; int main() { fastio; local(); cin >> n >> m >> k; for(int i = 0; i < n; i++) { for(int j = 0; j < m; j++) { char c; cin >> c; init[i][j] = (c == '.'); } } bool turn = 0; for(int i = 0; i < n; i++) vis[turn][i] = init[i]; string s; cin >> s; for(int _ = 0; _ < k; _++) { char dir = s[_]; turn ^= 1; for(int i = 0; i < n; i++) vis[turn][i].reset(); if(dir == 'N' || dir == '?') { for(int i = 1; i < n; i++) { vis[turn][i - 1] |= vis[turn ^ 1][i]; } } if(dir == 'S' || dir == '?') { for(int i = 0; i < n - 1; i++) { vis[turn][i + 1] |= vis[turn ^ 1][i]; } } if(dir == 'W' || dir == '?') { for(int i = 0; i < n; i++) { vis[turn][i] |= (vis[turn ^ 1][i] >> 1); } } if(dir == 'E' || dir == '?') { for(int i = 0; i < n; i++) { vis[turn][i] |= (vis[turn ^ 1][i] << 1); } } for(int i = 0; i < n; i++) vis[turn][i] &= init[i]; } int cnt = 0; for(int i = 0; i < n; i++) { for(int j = 0; j < m; j++) { cnt += vis[turn][i][j]; } } cout << cnt; }

nautilus.cpp: In function 'void local()':
nautilus.cpp:7:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
    7 |         freopen(taskname".inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
nautilus.cpp:8:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
    8 |         freopen(taskname".out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~