原创 [LeetCode]187 Repeated DNA Sequences

https://oj.leetcode.com/problems/repeated-dna-sequences/     public List<String> findRepeatedDnaSequences(String s) {   

2018-09-11 08:08:41

原创 [LeetCode] Rotate Array / List

Question:http://leetcode.com/2010/04/rotating-array-in-place.html Rotate a one-dimensional array of n elements to the ri

2018-09-11 08:08:40 2

原创 [LintCode] Kth Prime Number

http://lintcode.com/en/problem/kth-prime-number/# class Solution {     /**      * @param k: The number k.      * @return

2018-09-11 08:08:40

原创 [LintCode] First Bad Version

http://lintcode.com/en/problem/first-bad-version/ /**  * public class VersionControl {  *     public static boolean isBa

2018-09-11 08:08:40

原创 [LeetCode] String Reorder Distance Apart

Question:Given a string of lowercase characters, reorder them such that the same characters are at least distance d from

2018-09-11 08:08:40

原创 [Twitter] Generate chars and *

Question:Given a list of string, like (a, b, c), return a list: (*, *, *), (a, *, *), (*, b, *), (*, *, c), (a, b, *), (

2018-09-11 08:08:39 2

原创 [Twitter] Lowest Level Common Ancestor

Question:In a binary integer value tree, find the lowest level common ancestor of two values.http://www.glassdoor.com/In

2018-09-11 08:08:26

原创 [LeetCode]186 Reverse Words in a String II

Question:Given an input string, reverse the string word by word.For example,Given s = "the sky is blue",return "blue is

2018-09-11 08:08:26

原创 [Twitter] Max Stack

Question:Design a max stack using one stack. ?One stack? I think it is two stacks.class MaxMinStack<T> {   private Stack

2018-09-11 08:08:26

原创 [LeetCode]189 Rotate Array

https://oj.leetcode.com/problems/rotate-array/ public class Solution {     public void rotate(int[] nums, int k) {      

2018-09-11 08:08:26

原创 [Twitter] All possible pickings

Question: Given n sets of choices: (1, 2, 3), (a, b, c), (i, ii, iii).You pick one element from each set of choices. Gen

2018-09-11 08:08:26