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Markdown 格式标记符号说明1. 标题在行首插入 1 到 6个#，分别表示标题 1 到标题 6 # 这是标题1 ## 这是标题1 ###### 这是标题6 点击保存后的效果：标题1标题2标题62. 有序列表在行首增加1.、2.、3.，即数字和英文句点, 不要求数字一定要连续，可以都是1. 1. 有序列表 1. 有序列表 4. 有序列表 点击保存后的效果：有序列表有序列表有序列表3. 无序列... 阅读全文
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238. Product of Array Except Self Given an array of n integers where n > 1, nums, return an array output such that output[i] is equal to the product o 阅读全文
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104. Maximum Depth of Binary Tree Given a binary tree, find its maximum depth. The maximum depth is the number of nodes along the longest path from th 阅读全文
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3. Longest Substring Without Repeating Characters Given a string, find the length of the longest substring without repeating characters. For example, 阅读全文
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2. Add Two Numbers You are given two linked lists representing two non-negative numbers. The digits are stored in reverse order and each of their node 阅读全文
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338. Counting Bits Given a non negative integer number num. For every numbers i in the range 0 ≤ i ≤ num calculate the number of 1's in their binary r 阅读全文
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258. Add Digits Given a non-negative integer num, repeatedly add all its digits until the result has only one digit. For example: Given num = 38, the 阅读全文
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136. Single Number Given an array of integers, every element appears twice except for one. Find that single one. Note: Your algorithm should have a li 阅读全文
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1. Two Sum Given an array of integers, return indices of the two numbers such that they add up to a specific target. You may assume that each input wo 阅读全文
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1、debug下手写快排效率为sort的10倍 2、release下sort略快于手写快排（相比debug均有极大提高） 3、stable_sort 在debug下比sort快 release下比sort慢 原因不明。 1 #pragma once 2 #include "stdafx.h" 3 # 阅读全文