func_code_string: #include <bits/stdc++.h>   using namespace std;   void read_file(bool outToFile = true) {}   int n, m;   bool vis[500 + 9][500 + 9];   string s;   int l;   int x, y;   int ans[100000 + 1 + 9];   string alpha =  *URDL ;   int dij[5][2] = {{0, 0}, {-1, 0}, {0, +1}, {+1, 0}, {0, -1}};   bool valid(int i, int j) { return 0 <= i && i < n && 0 <= j && j < m; }   int main() {     read_file();     while (scanf( %d%d , &n, &m) != EOF) {       scanf( %d%d , &x, &y);       x--, y--;       memset(vis, 0, sizeof vis);       cin >> s;       s =  *  + s;       l = s.length();       for (int i = 0; i < l - 1; i++) {         int nx, ny;         nx = x + dij[alpha.find(s[i])][0];         ny = y + dij[alpha.find(s[i])][1];         if (!valid(nx, ny)) {           ans[i] = 0;           continue;         }         x = nx, y = ny;         if (!vis[x][y]) {           vis[x][y] = 1;           ans[i] = 1;         } else           ans[i] = 0;       }       int cnt = n * m;       for (int i = 0; i < n; i++)         for (int j = 0; j < m; j++) cnt -= vis[i][j];       ans[l - 1] = cnt;       for (int i = 0; i < l; i++) printf( %d%c , ans[i],    n [i == l - 1]);     }   }   