CF702E.Analysis of Pathes in Functional Graph
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题目描述
You are given a functional graph. It is a directed graph, in which from each vertex goes exactly one arc. The vertices are numerated from 0 to n−1.
Graph is given as the array f0,f1,…,fn−1, where fi — the number of vertex to which goes the only arc from the vertex i. Besides you are given array with weights of the arcs w0,w1,…,wn−1, where wi — the arc weight from i to fi.
The graph from the first sample test.Also you are given the integer k (the length of the path) and you need to find for each vertex two numbers si and mi, where:
- si — the sum of the weights of all arcs of the path with length equals to k which starts from the vertex i;
- mi — the minimal weight from all arcs on the path with length k which starts from the vertex i.
The length of the path is the number of arcs on this path.
输入格式
The first line contains two integers n,k (1≤n≤105,1≤k≤1010). The second line contains the sequence f0,f1,…,fn−1 (0≤fi<n) and the third — the sequence w0,w1,...,wn−1 (0≤wi≤108).
输出格式
Print n lines, the pair of integers si,mi in each line.
输入输出样例
输入#1
7 3 1 2 3 4 3 2 6 6 3 1 4 2 2 3
输出#1
10 1 8 1 7 1 10 2 8 2 7 1 9 3
输入#2
4 4 0 1 2 3 0 1 2 3
输出#2
0 0 4 1 8 2 12 3
输入#3
5 3 1 2 3 4 0 4 1 2 14 3
输出#3
7 1 17 1 19 2 21 3 8 1