A11152. Palindromic characteristics
编程题
普及/提高-
知识点
题目描述
Palindromic characteristics of string $s$ with length $|s|$ is a sequence of $|s|$ integers, where $k$ -th number is the total number of non-empty substrings of $s$ which are $k$ -palindromes.
A string is $1$ -palindrome if and only if it reads the same backward as forward.
A string is $k$ -palindrome ( $k>1$ ) if and only if:
1. Its left half equals to its right half.
2. Its left and right halfs are non-empty ( $k-1$ )-palindromes.
The left half of string $t$ is its prefix of length $⌊|t|/2⌋$ , and right half — the suffix of the same length. $⌊|t|/2⌋$ denotes the length of string $t$ divided by $2$ , rounded down.
Note that each substring is counted as many times as it appears in the string. For example, in the string "aaa" the substring "a" appears 3 times.
A string is $1$ -palindrome if and only if it reads the same backward as forward.
A string is $k$ -palindrome ( $k>1$ ) if and only if:
1. Its left half equals to its right half.
2. Its left and right halfs are non-empty ( $k-1$ )-palindromes.
The left half of string $t$ is its prefix of length $⌊|t|/2⌋$ , and right half — the suffix of the same length. $⌊|t|/2⌋$ denotes the length of string $t$ divided by $2$ , rounded down.
Note that each substring is counted as many times as it appears in the string. For example, in the string "aaa" the substring "a" appears 3 times.
输入格式
The first line contains the string $s$ ( $1<=|s|<=5000$ ) consisting of lowercase English letters.
输出格式
Print $|s|$ integers — palindromic characteristics of string $s$ .
输入输出样例
输入 #1
abba
输出 #1
6 1 0 0
输入 #2
abacaba
输出 #2
12 4 1 0 0 0 0
说明/提示
In the first example 1-palindromes are substring «a», «b», «b», «a», «bb», «abba», the substring «bb» is 2-palindrome. There are no 3- and 4-palindromes here.