Problem: Example

Input

2 4
%.@\$
..\$\$


Output

Yes

Solution (in CPP):

Solution:
/* template.cpp {{{ */
#include <bits/stdc++.h>
using namespace std;
#define get_macro(a, b, c, d, name, ...) name
#define rep(...) get_macro(__VA_ARGS__, rep4, rep3, rep2, rep1)(__VA_ARGS__)
#define rrep(...) get_macro(__VA_ARGS__, rrep4, rrep3, rrep2, rrep1)(__VA_ARGS__)
#define rep1(n) rep2(i_, n)
#define rep2(i, n) rep3(i, 0, n)
#define rep3(i, a, b) rep4(i, a, b, 1)
#define rep4(i, a, b, s) for (ll i = (a); i < (ll)(b); i += (ll)(s))
#define rrep1(n) rrep2(i_, n)
#define rrep2(i, n) rrep3(i, 0, n)
#define rrep3(i, a, b) rrep4(i, a, b, 1)
#define rrep4(i, a, b, s) for (ll i = (ll)(b) - 1; i >= (ll)(a); i -= (ll)(s))
#define each(x, c) for (auto &&x : c)
#define fs first
#define sc second
#define all(c) begin(c), end(c)
using ui = unsigned;
using ll = long long;
using ul = unsigned long long;
using ld = long double;
const int inf = 1e9 + 10;
const ll inf_ll = 1e18 + 10;
const ll mod = 1e9 + 7;
const ll mod9 = 1e9 + 9;
const int dx[]{-1, 0, 1, 0, -1, 1, 1, -1};
const int dy[]{0, -1, 0, 1, -1, -1, 1, 1};
template<class T, class U> void chmin(T &x, const U &y){ x = min<T>(x, y); }
template<class T, class U> void chmax(T &x, const U &y){ x = max<T>(x, y); }
struct prepare_ { prepare_(){ cin.tie(nullptr); ios::sync_with_stdio(false); cout << fixed << setprecision(12); } } prepare__;
/* }}} */

int h, w;
string s[200];
int d[200][200];

int main(){
  cin >> h >> w;
  rep(i, h) cin >> s[i];
  int sx, sy;
  rep(i, h) rep(j, w) if (s[i][j] == '%') sx = i, sy = j;
  fill_n(*d, 200 * 200, inf);
  queue<pair<int, int>> q;
  d[sx][sy] = 0;
  q.emplace(sx, sy);
  while (q.size()){
    int x, y;
    tie(x, y) = q.front(), q.pop();
    rep(i, 4){
      int nx = x + dx[i];
      int ny = y + dy[i];
      if (nx < 0 || nx >= h || ny < 0 || ny >= w) continue;
      if (s[nx][ny] == '#') continue;
      if (d[nx][ny] > d[x][y] + 1){
        d[nx][ny] = d[x][y] + 1;
        q.emplace(nx, ny);
      }
    }
  }
  int a, b = inf;
  rep(i, h) rep(j, w){
    if (s[i][j] == '@') a = d[i][j];
    if (s[i][j] == '$') chmin(b, d[i][j]);
  }
  cout << (a < b ? "Yes\n" : "No\n");
}