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Baozi Leetcode solution 201: Bitwise AND of Numbers Range
Problem Statement Given a range [m, n] where 0 <= m <= n <= 2147483647, return the bitwise AND of all numbers in this range, inclusive. Given a range ...
分类:其他好文   时间:2019-10-01 09:39:23    阅读次数:102
Python3实用编程技巧进阶
Python3实用编程技巧进阶 1.如何实现可迭代对象和迭代器对象 如果想从网络上抓取数据存入字典,然后再对字典进行迭代显示,由于网络I/O操作的时间相对较长,这样就会造成用户的长时间等待,我们希望能一次抓取就显示一次,于是迭代器对象出现了。在 for 循环的时候 in 后面跟的是一个可迭代对象,在 ...
分类:编程语言   时间:2019-09-30 21:44:50    阅读次数:96
LC 1. Two Sum
题目介绍 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 would ha ...
分类:其他好文   时间:2019-09-30 20:15:05    阅读次数:119
Codeforces Round #589 (Div. 2) B——B. Filling the Grid
Suppose there is a h×wh×w grid consisting of empty or full cells. Let's make some definitions: riri is the number of consecutive full cells connected ...
分类:其他好文   时间:2019-09-30 18:12:34    阅读次数:122
HDU-1719 Friend 数学推导
Friend HDU - 1719 Friend number are defined recursively as follows. (1) numbers 1 and 2 are friend number; (2) if a and b are friend numbers, so is ab ...
分类:其他好文   时间:2019-09-30 14:40:25    阅读次数:114
Python函数
Python 函数 函数是组织好的,可重复使用的,用来实现单一,或相关联功能的代码段。 函数能提高应用的模块性,和代码的重复利用率。你已经知道Python提供了许多内建函数,比如print()。但你也可以自己创建函数,这被叫做用户自定义函数。 定义一个函数 你可以定义一个由自己想要功能的函数,以下是 ...
分类:编程语言   时间:2019-09-30 00:04:36    阅读次数:128
HDU 1018:Big Number (位数递推公式)
Problem DescriptionIn many applications very large integers numbers are required. Some of these applications are using keys for secure transmission of ...
分类:其他好文   时间:2019-09-29 23:35:48    阅读次数:121
[LeetCode 560] Subarray Sum Equals K
Given an array of integers and an integer k, you need to find the total number of continuous subarrays whose sum equals to k. Example 1: Note: Solutio ...
分类:其他好文   时间:2019-09-29 09:52:23    阅读次数:81
[LeetCode 1171] Remove Zero Sum Consecutive Nodes from Linked List
Given the head of a linked list, we repeatedly delete consecutive sequences of nodes that sum to 0 until there are no such sequences. After doing so, ...
分类:其他好文   时间:2019-09-29 09:14:16    阅读次数:113
$hncpc2019E\ Numbers$ 搜索
正解:搜索 解题报告: 没有传送门$QAQ$ 考虑直接搜所有长度为1的数的位置?然后其他就能确定了嘛$QwQ$ 设每个数的出现次数为$a_i$,状态数为$\prod_{i=0}^9(a_i+1) \le (\frac{\sum_{i=0}^9(a_i+1)}{10})^{10}=6^{10}$ 因为 ...
分类:其他好文   时间:2019-09-28 23:44:12    阅读次数:91
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