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2016-01-05

Find Duplicates

You have an array with all the numbers from 1 to N, where N is at most 32,000.

2016-01-05

Check Duplicate

Given an array of integers, find if the array contains any duplicates.

2016-01-05

Palindrome Number

Determine whether an integer is a palindrome. Do this without extra space.

2016-01-04

Check Palindrome

回文，英文palindrome，指一个顺着读和反过来读都一样的字符串，比如madam、我爱我，这样的短句在智力性、趣味性和艺术性上都颇有特色，中国历史上还有很多有趣的回文诗。

2016-01-04

Palindrome Permutation

Given a string, write a function to check if it is a permutation of a palindrome.

2016-01-04

Check Permutation

Given two strings, write a method to decide if one is a permutation of the other.

2016-01-04

Check Valid Number

Validate if a given string is numeric.

2016-01-04

Check Valid Sudoku

请判定一个数独是否有效。

2016-01-04

Compare Version Numbers

Compare two version numbers version1 and version2.

2016-01-04

Count and Say

报数指的是，按照其中的整数的顺序进行报数，然后得到下一个数。如下所示：

Find Duplicates

Check Duplicate

Palindrome Number

Check Palindrome

Palindrome Permutation

Check Permutation

Check Valid Number

Check Valid Sudoku

Compare Version Numbers

Count and Say

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