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1513:Palindrome

题目描述
A palindrome is a symmetrical string, that is, a string read identically from left to right as well as from right to left. You are to write a program which, given a string, determines the minimal number of characters to be inserted into the string in order to obtain a palindrome.

As an example, by inserting 2 characters, the string "Ab3bd" can be transformed into a palindrome ("dAb3bAd" or "Adb3bdA"). However, inserting fewer than 2 characters does not produce a palindrome.
输入解释
Your program is to read from standard input. The first line contains one integer: the length of the input string N, 3 <= N <= 5000. The second line contains one string with length N. The string is formed from uppercase letters from 'A' to 'Z', lowercase letters from 'a' to 'z' and digits from '0' to '9'. Uppercase and lowercase letters are to be considered distinct.
输出解释
Your program is to write to standard output. The first line contains one integer, which is the desired minimal number.
输入样例
5
Ab3bd
输出样例
2
来自杭电HDUOJ的附加信息
Recommend linle

该题目是Virtual Judge题目,来自 杭电HDUOJ

题目来源 IOI 2000

源链接: HDU-1513

最后修改于 2020-10-25T22:45:37+00:00 由爬虫自动更新

共提交 0

通过率 --%
时间上限 内存上限
4000/2000MS(Java/Others) 65536/32768K(Java/Others)