#585. 1589. [Usaco2008 Dec]Trick or Treat on the Farm 采集糖果
1589. [Usaco2008 Dec]Trick or Treat on the Farm 采集糖果
#1589. [Usaco2008 Dec]Trick or Treat on the Farm 采集糖果
题目描述
每年万圣节,威斯康星的奶牛们都要打扮一番,出门在农场的N(1≤N≤100000)个牛棚里转悠,来采集糖果.她们
每走到一个未曾经过的牛棚,就会采集这个棚里的1颗糖果. 农场不大,所以约翰要想尽法子让奶牛们得到快乐.
他给每一个牛棚设置了一个"后继牛棚".牛棚i的后继牛棚是Xi.他告诉奶牛们,她们到了一个牛棚之后,只要
再往后继牛棚走去,就可以搜集到很多糖果.事实上这是一种有点欺骗意味的手段,来节约他的糖果. 第i只奶
牛从牛棚i开始她的旅程.请你计算,每一只奶牛可以采集到多少糖果.
输入格式
第1行输入N,之后一行一个整数表示牛棚i的后继牛棚Xi,共N行.
输出格式
共N行,一行一个整数表示一只奶牛可以采集的糖果数量.
样例
样例输入
4 //有四个点
1 //1有一条边指向1
3 //2有一条边指向3
2 //3有一条边指向2
3
INPUT DETAILS:
Four stalls.
* Stall 1 directs the cow back to stall 1.
* Stall 2 directs the cow to stall 3
* Stall 3 directs the cow to stall 2
* Stall 4 directs the cow to stall 3
样例输出
1
2
2
3
//Cow 1: Start at 1, next is 1. Total stalls visited: 1.
Cow 2: Start at 2, next is 3, next is 2. Total stalls visited: 2.
Cow 3: Start at 3, next is 2, next is 3. Total stalls visited: 2.
Cow 4: Start at 4, next is 3, next is 2, next is 3. Total stalls visited: 3.