Palindromize | Topcoder Archive

Problem Statement

A palindrome is a string that reads the same from left to right as it does from right to left. Given a String s, return the shortest palindrome that can be produced by adding zero or more characters to the right end of s. There is always one unique answer.

Definition

Class:: Palindromize
Method:: minAdds
Parameters:: String
Returns:: String
Method signature:: String minAdds(String s)
(be sure your method is public)

Constraints

s will contain between 1 and 50 characters, inclusive.
Each character of s will be a lowercase letter ('a'-'z').

Examples

```
"add"
```
```
Returns: "adda"
```
Add 'a' to make a palindrome. "adddda" is also a valid palindrome, but it is not the shortest possible one.
```
"cigartragic"
```
```
Returns: "cigartragic"
```
This is already a palindrome, so the shortest solution is to add 0 letters.
```
"redocpot"
```
```
Returns: "redocpotopcoder"
```
```
"acaba"
```
```
Returns: "acabaca"
```
```
"abczyxyz"
```
```
Returns: "abczyxyzcba"
```

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