摘要： BFS#include #include #include #include #include #include #include struct A{ int x,y,time;}t,now;int map1[350][350];int m,n;int vis[... 阅读全文

摘要： You are given three integers a, b and x. Your task is to construct a binary string s of length n=a+b such that there are exactly a zer... 阅读全文