#include <bits/stdc++.h>

using namespace std;

#define x	first
#define y	second

const int N = 100 + 5;
typedef pair<int, int> PII;
char g[N][N];
int d[N][N];
int dx[4] = {-1,0,1,0}, dy[4] = {0,-1,0,1};
int h, m;

int bfs(int sx, int sy)
{
	queue<PII> q;
	d[sx][sy] = 0;
	q.push({sx, sy});
	
	while(q.size())
	{
		auto t = q.front();
		q.pop();
		
		if(g[t.x][t.y] == 'E')
		{
			return d[t.x][t.y];
		}
		
		for(int i = 0; i < 4; i++)
		{
	...