#include <iostream> #include <utility> #include<vector> using namespace std; int dx[4] = {-1,0,1,0}; int dy[4] = {0,1,0,-1}; vector<pair<int,int>> stk; void dfs(vector<vector<int>>& maze, int sx, int sy, int tx, int ty, vector<pair<int, int>>& pa...