A985.HILO--Platinum
提高+/省选-
通过率:0%
时间限制:1.00s
内存限制:128MB
题目描述
Bessie knows a number x+0.5 where x is some integer between 0 to N,
inclusive (1≤N≤2⋅105).
Elsie is trying to guess this number. She can ask questions of the form "is
i high or low?" for some integer i between 1 and N, inclusive. Bessie
responds by saying "HI" if i is greater than x+0.5, or "LO" if i is less
than x+0.5.
Elsie comes up with the following strategy for guessing Bessie's number.
Before making any guesses, she creates a list of N numbers, where every
number from 1 to N occurs exactly once (in other words, the list is a
permutation of size N). Then she goes through the list, guessing numbers
that appear in the list in order.
However, Elsie skips any unnecessary guesses. That is, if Elsie is about to
guess some number i and Elsie previously guessed some j<i and Bessie
responded with "HI", Elsie will not guess i and will move on to the next
number in the list. Similarly, if she is about to guess some number i and
she previously guessed some j>i and Bessie responded with "LO", Elsie will
not guess i and will move on to the next number in the list. It can be
proven that using this strategy, Elsie always uniquely determines x
regardless of the permutation she creates.
If we concatenate all of Bessie's responses of either "HI" or "LO" into a
single string S, then the number of times Bessie says "HILO" is the number
of length 4 substrings of S that are equal to "HILO."
Bessie knows that Elsie will use this strategy; furthermore, she also knows
the exact permutation that Elsie will use. However, Bessie has not decided on
what value of x to choose.
Help Bessie determine how many times she will say "HILO" for each value of
x.
输入格式
The first line contains N.
The second line contains Elsie's permutation of size N.
输出格式
For each x from 0 to N, inclusive, output the number of times Bessie
will say HILO on a new line.
输入输出样例
输入#1
5 5 1 2 4 3
输出#1
0 1 1 2 1 0
说明/提示
For x=0, Bessie will say "HIHI," for a total of zero "HILO"s.
For x=2, Bessie will say "HILOLOHIHI," for a total of one "HILO".
For x=3, Bessie will say "HILOLOHILO", for a total of two "HILO"s.