2016年4月19日
Leetcode题目：Roman to Integer
摘要： 题目：Given a roman numeral, convert it to an integer. Input is guaranteed to be within the range from 1 to 3999. 解题思路：罗马数字的构成规则是： 相同的数字连写，所表示的数等于这些数字相加得 阅读全文
posted @ 2016-04-19 18:49 CodingGirl121 阅读(107) 评论(0) 推荐(0)
Leetcode题目：Contains Duplicate
摘要： 题目：Given an array of integers, find if the array contains any duplicates. Your function should return true if any value appears at least twice in the 阅读全文
posted @ 2016-04-19 18:05 CodingGirl121 阅读(99) 评论(0) 推荐(0)
Leetcode题目：Valid Anagram
摘要： 题目： Given two strings s and t, write a function to determine if t is an anagram of s. For example,s = "anagram", t = "nagaram", return true.s = "rat", 阅读全文
posted @ 2016-04-19 18:00 CodingGirl121 阅读(157) 评论(0) 推荐(0)
Leetcode题目：Move Zeroes
摘要： 题目：Given an array nums, write a function to move all 0's to the end of it while maintaining the relative order of the non-zero elements. For example, 阅读全文
posted @ 2016-04-19 16:49 CodingGirl121 阅读(112) 评论(0) 推荐(0)
Leetcode题目：Nim Game
摘要： 题目：You are playing the following Nim Game with your friend: There is a heap of stones on the table, each time one of you take turns to remove 1 to 3 s 阅读全文
posted @ 2016-04-19 16:35 CodingGirl121 阅读(114) 评论(0) 推荐(0)
Leetcode题目：Power of Four
摘要： 题目：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, retur 阅读全文
posted @ 2016-04-19 15:35 CodingGirl121 阅读(166) 评论(0) 推荐(0)
2016年2月11日
Leetcode题目：Remove Duplicates from Sorted Array II
摘要： 题目：Follow up for "Remove Duplicates": What if duplicates are allowed at most twice? For example, Given sorted array nums = [1,1,1,2,2,3], Your functio 阅读全文
posted @ 2016-02-11 10:16 CodingGirl121 阅读(142) 评论(0) 推荐(0)
2016年2月4日
Leetcode题目：Remove Duplicates from Sorted Array
摘要： 题目：Given a sorted array, remove the duplicates in place such that each element appear only once and return the new length. Do not allocate extra space 阅读全文
posted @ 2016-02-04 11:02 CodingGirl121 阅读(186) 评论(0) 推荐(0)