IncredibleThings

摘要： We are playing the Guess Game. The game is as follows: I pick a number from 1 to n. You have to guess which number I picked. Every time you guess wrong, I'll tell you whether the number is higher o... 阅读全文

摘要： Given two arrays, write a function to compute their intersection. Example: Given nums1 = [1, 2, 2, 1], nums2 = [2, 2], return [2, 2]. Note: Each element in the result should appear as many times as... 阅读全文

摘要： Given two arrays, write a function to compute their intersection. Example: Given nums1 = [1, 2, 2, 1], nums2 = [2, 2], return [2]. Note: Each element in the result must be unique. The result can be... 阅读全文

摘要： Write a function that takes a string as input and reverse only the vowels of a string. Example 1: Given s = "hello", return "holle". Example 2: Given s = "leetcode", return "leotcede". public cla... 阅读全文

摘要： Write a function that takes a string as input and returns the string reversed. Example: Given s = "hello", return "olleh". public class Solution { public String reverseString(String s) { ... 阅读全文

摘要： Given an integer (signed 32 bits), write a function to check whether it is a power of 4. Example: Given num = 16, return true. Given num = 5, return false. Follow up: Could you solve it without loo... 阅读全文

摘要： Given an integer, write a function to determine if it is a power of three. Follow up: Could you do it without using any loop / recursion? public class Solution { private static final double ep... 阅读全文