把已经建好的路直接合并即可; #include"stdio.h" #include"string.h" #include"stdlib.h" #include"algorithm" using namespace std; int pre[1000]; struct point { int x,y,z; }a[10000]; int cmp(point a,point b) { ret
题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=1102 Problem Description There are N villages, which are numbered from 1 to N, and you should build some roads such that every two villages can connect
文章目录 题目分析题目链接 题目分析 反转二叉树这道题目特别出名!!!,是因为Homebrew这款Mac上大火的软件的作者到google面试,就考了这道题。面试官说了下面这段话:你竟然连在白板上翻转二叉树都不会,还是滚吧。 Google: 90% of our engineers use the software you wrote (Homebrew), but yo