Problem Statement | | | You are playing a simple one-player game in which you are given a set of cards.
Each card has a string written on the front and a number on the back.
The strings on all the cards have the same length.
You must choose some of these cards (at least one, possibly all)
and place them in a row with the front sides visible,
such that the concatenated string is a palindrome.
A palindrome is a string that reads the same forward and backward.
Your score is the sum of the numbers on the back sides of the chosen cards.
You are given a String[] front and a int[] back
describing the set of cards you are given.
The i-th card has front[i] written on the front and back[i] on the back.
Return the maximum possible score you can achieve with these cards.
If it is impossible to compose a palindrome from the given cards, return 0 instead.
| | | Definition | | | | Class: | PalindromeGame | | Method: | getMaximum | | Parameters: | String[], int[] | | Returns: | int | | Method signature: | int getMaximum(String[] front, int[] back) | | (be sure your method is public) |
| | | | | | Constraints | | - | front will contain between 1 and 50 elements, inclusive. | | - | Each element of front will contain between 1 and 50 characters, inclusive. | | - | Each element of front will contain the same number of characters. | | - | Each character in front will be a lowercase letter ('a' - 'z'). | | - | front and back will contain the same number of elements. | | - | Each element of back will be between 1 and 1,000,000, inclusive. | | | Examples | | 0) | | | | { "topcoder", "redcoder", "redocpot" } | { 7, 5, 3 } |
| Returns: 10 | | You can choose "topcoder" with 7 and "redocpot" with 3 to get a palindrome "topcoderredocpot".
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| | 1) | | | | | Returns: 0 | | No palindrome can be made.
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| | 2) | | | | { "abc", "abc", "def", "cba", "fed" } | { 24, 7, 63, 222, 190 } |
| Returns: 499 | |
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