#include <vector> class Solution { public: int res=0; int vis[4][2]={{-1,0},{1,0},{0,-1},{0,1}};//上下左右 bool iscoming(int row,int col,int threshold){ int a,b,c,sum; a=row/100; b=(row-a*100)/10; c=(row-a*100-b*10)%10; sum=a+b+c; a=col/1...