Preparando MOJI
You are given a set of strings $$$S$$$. Each string consists of lowercase Latin letters.
For each string in this set, you want to calculate the minimum number of seconds required to type this string. To type a string, you have to start with an empty string and transform it into the string you want to type using the following actions:
What is the minimum number of seconds that you have to spend to type each string from $$$S$$$?
Note that the strings from $$$S$$$ are given in an unusual way.
The first line contains one integer $$$n$$$ ($$$1 \le n \le 10^6$$$).
Then $$$n$$$ lines follow, the $$$i$$$-th line contains one integer $$$p_i$$$ ($$$0 \le p_i < i$$$) and one lowercase Latin character $$$c_i$$$. These lines form some set of strings such that $$$S$$$ is its subset as follows: there are $$$n + 1$$$ strings, numbered from $$$0$$$ to $$$n$$$; the $$$0$$$-th string is an empty string, and the $$$i$$$-th string ($$$i \ge 1$$$) is the result of appending the character $$$c_i$$$ to the string $$$p_i$$$. It is guaranteed that all these strings are distinct.
The next line contains one integer $$$k$$$ ($$$1 \le k \le n$$$) — the number of strings in $$$S$$$.
The last line contains $$$k$$$ integers $$$a_1$$$, $$$a_2$$$, ..., $$$a_k$$$ ($$$1 \le a_i \le n$$$, all $$$a_i$$$ are pairwise distinct) denoting the indices of the strings generated by above-mentioned process that form the set $$$S$$$ — formally, if we denote the $$$i$$$-th generated string as $$$s_i$$$, then $$$S = {s_{a_1}, s_{a_2}, \dots, s_{a_k}}$$$.
Print $$$k$$$ integers, the $$$i$$$-th of them should be equal to the minimum number of seconds required to type the string $$$s_{a_i}$$$.
10 0 i 1 q 2 g 0 k 1 e 5 r 4 m 5 h 3 p 3 e 5 8 9 1 10 6
2 4 1 3 3
8 0 a 1 b 2 a 2 b 4 a 4 b 5 c 6 d 5 2 3 4 7 8
1 2 2 4 4
In the first example, $$$S$$$ consists of the following strings: ieh, iqgp, i, iqge, ier.