wangyaning

2017年11月17日

摘要：内推阿里电话面试中面试官给我出的一个题：我想的头一个解决方案，就是放到stl 的map里面对出现的频率作为pair的第二个字段进行排序，之后按照排序结果返回：下面口说无凭，show your code，当然在讨论帖子中遭遇了工程界大牛的sql代码在技术上的碾压。什么是做工程的，什么是工程师的思维，不... 阅读全文

posted @ 2017-11-17 22:27 wangyaning 阅读(622) 评论(0) 推荐(0)

leetcode 110 Balanced Binary Tree

摘要： Balanced Binary Tree Total Accepted: 63288 Total Submissions: 198315 My Submissions Given a binary tree, determine if it is heig... 阅读全文

posted @ 2017-11-17 22:27 wangyaning 阅读(169) 评论(0) 推荐(0)

leetcode 102 Binary Tree Level Order Traversal

摘要： Given a binary tree, return the level order traversal of its nodes' values. (ie, from left to right, level by level).For example:Given binary tree {3,... 阅读全文

posted @ 2017-11-17 22:27 wangyaning 阅读(131) 评论(0) 推荐(0)

leetcode 101 Symmetric Tree

摘要： Symmetric Tree Total Accepted: 61440 Total Submissions: 194643 My Submissions Given a binary tree, check whether it is a mirror... 阅读全文

posted @ 2017-11-17 22:27 wangyaning 阅读(161) 评论(0) 推荐(0)

ios swift 实现饼状图进度条，swift环形进度条

posted @ 2017-11-17 22:27 wangyaning 阅读(1307) 评论(0) 推荐(0)

leetcode 67 Add Binary

摘要： Add Binary Total Accepted: 46815 Total Submissions: 189215 My Submissions Given two binary strings, return their sum (also a bin... 阅读全文

posted @ 2017-11-17 22:27 wangyaning 阅读(177) 评论(0) 推荐(0)

leetcode 20 Valid Parentheses 括号匹配

摘要： Given a string containing just the characters '(', ')', '{', '}', '[' and']', determine if the input string is valid.The brackets must close in the co... 阅读全文

posted @ 2017-11-17 22:27 wangyaning 阅读(133) 评论(0) 推荐(0)

leetcode 14 Longest Common Prefix

摘要： Write a function to find the longest common prefix string amongst an array of strings.我的解决方案：class Solution {public: string longestCommonPrefix(vec... 阅读全文

posted @ 2017-11-17 22:27 wangyaning 阅读(224) 评论(0) 推荐(0)

推荐一个计算机视觉图书：python计算机视觉编程

摘要：编辑部的主页：好像没啥用http://shop.oreilly.com/product/0636920022923.do每章的代码，github上面的：中文版https://github.com/willard-yuan/pcv-book-codegithub上面，英文版：https://githu... 阅读全文

posted @ 2017-11-17 22:27 wangyaning 阅读(3672) 评论(0) 推荐(0)

leetcode 9 Palindrome Number 回文数

摘要： Determine whether an integer is a palindrome. Do this without extra space.click to show spoilers.Some hints: Could negative integers be palin... 阅读全文

posted @ 2017-11-17 22:27 wangyaning 阅读(148) 评论(0) 推荐(0)

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