LinkT399752TheMazeoftheImperialSister（御姐的迷宫）Question判断图内是否有环Solution先判断连通性，所有点是不是在一个块内，然后用树的性质，点数\(=\)边数\(+1\)判断Code#include<bits/stdc++.h>usingnamespacestd;constintmaxn=1e5+5,maxe=maxn*2;structI

Givenanintegerarraywithevenlength,wheredifferentnumbersinthisarrayrepresentdifferentkindsofcandies.Eachnumbermeansonecandyofthecorrespondingkind.Youneedtodistributethesecandiesequallyinnumbertobrotherandsister.Retur

题目Givenanintegerarraywithevenlength,wheredifferentnumbersinthisarrayrepresentdifferentkindsofcandies.Eachnumbermeansonecandyofthecorr

SmartSisterTimeLimit: 5Seconds     MemoryLimit: 32768KBYesterday,Kamranwasworkingonareport,whichhemustsubmittohisbossnextSatur