Hello_Motty

迅速读懂：Effective STL （一）

摘要： c++中stl不是面向对象编程，而是提供一种新的方式：泛型编程。当然这个话题说起来几天几夜也说不完，然而如果对于stl有一个一般的理解，比如可以使用标准容器对数据进行存储，然后可以对标准容器进行简单的增删查改，知道stl中的大致algorithm，并且纠结于平时如何使用stl可以更加高效、易懂、安全阅读全文

posted @ 2017-08-23 21:06 Hello_Motty 阅读(595) 评论(0) 推荐(1)

LeetCode解题思路：344. Reverse String

摘要： Write a function that takes a string as input and returns the string reversed. Example:Given s = "hello", return "olleh". 题意：翻转字符串，从头到尾翻转。基本思路： 1.如果对阅读全文

posted @ 2017-08-22 13:30 Hello_Motty 阅读(278) 评论(0) 推荐(0)

LeetCode解题思路：566. Reshape the Matrix

摘要：题意：把一个矩阵变形成另一个矩阵，如3*4变成2*6。基本思路： 1. 把矩阵中所有元素放在一个一维数组中，然后把一位数组中的数保存在新矩阵中。 2.1中思路并没有什么问题，但是用了多余的空间，实际上c语言中二维数组仍然是按行优先模式的一维数组保存的。而保存的时候只需要将行数读出来保存在新数组中。阅读全文

posted @ 2017-08-21 14:50 Hello_Motty 阅读(172) 评论(0) 推荐(0)

LeetCode解题思路：575. Distribute Candies

摘要： Given an integer array with even length, where different numbers in this array represent different kinds of candies. Each number means one candy of th 阅读全文

posted @ 2017-08-19 22:04 Hello_Motty 阅读(148) 评论(0) 推荐(0)

LeetCode解题思路：557. Reverse Words in a String III

摘要： Given a string, you need to reverse the order of characters in each word within a sentence while still preserving whitespace and initial word order. E 阅读全文

posted @ 2017-08-18 20:48 Hello_Motty 阅读(194) 评论(0) 推荐(0)

LeetCode解题思路：500. Keyboard Row

摘要： Given a List of words, return the words that can be typed using letters of alphabet on only one row's of American keyboard like the image below. 题意：给一阅读全文

posted @ 2017-08-14 21:36 Hello_Motty 阅读(133) 评论(0) 推荐(0)

LeetCode解题思路：476. Number Complement

摘要： Given a positive integer, output its complement number. The complement strategy is to flip the bits of its binary representation. Note: Example 1: Exa 阅读全文

posted @ 2017-08-12 21:55 Hello_Motty 阅读(171) 评论(0) 推荐(0)

LeetCode解题思路：627. Swap Salary

摘要： Given a table salary, such as the one below, that has m=male and f=female values. Swap all f and m values (i.e., change all f values to m and vice ver 阅读全文

posted @ 2017-08-11 23:09 Hello_Motty 阅读(433) 评论(0) 推荐(0)

LeetCode解题思路：617. Merge Two Binary Trees

摘要： Given two binary trees and imagine that when you put one of them to cover the other, some nodes of the two trees are overlapped while the others are n 阅读全文

posted @ 2017-08-10 22:02 Hello_Motty 阅读(250) 评论(0) 推荐(0)

LeetCode解题思路：595. Big Countries

摘要： There is a table World A country is big if it has an area of bigger than 3 million square km or a population of more than 25 million. Write a SQL solu 阅读全文

posted @ 2017-08-09 21:59 Hello_Motty 阅读(381) 评论(0) 推荐(0)

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