Customers are standing in a queue to buy from you, and order one at a time (in the order specified bybills). Each customer will only buy one lemonade and pay with either a$5,$10, or$20bill. You must provide the correct change to each customer, so that the net transaction is that ...
[LeetCode&Python] Problem 476. Number Complement Given a positive integer, output its complement number. The complement strategy is to flip the bits of its binary representation. Note: The given integer is guaranteed to fit within the range of a 32-bit signed integer. You could assume no lea...
其实Leetcode上的一部分题我都基本刷过,那么我就开始吧。 注册Leetcode账号 目前Leetcod有国际和中文的两个版本,下图就是我的中文版本,刷的不够,其实我也挺菜的。这个是中文的网址:https://leetcode-cn.com/problemset/all/ 下图就是我的国际版本,其实我主要在国际版混日子,刷了100多题,其实我很菜的。这是...
My LeetCode Daily Problem & Contest Group: See rules and score board here (If you are interested in joining this group, ping me guan.huifeng@gmail.com) LeetCode难题代码和算法要点分析 目前分类目录 Two Pointers 011.Container-With-Most-Water (M+) 015.3Sum (M) 016.3Sum-Closet (M) 018.4Sum...
针对上文中,有递归调用的思想,这里有个附加题,强化下这个思想。学有余力的,欢迎做下自我挑战。 题目: 一只青蛙一次可以跳上1级台阶,也可以跳上2级台阶。求该青蛙跳上一个 n 级的台阶总共有多少种跳法。 来源:力扣(LeetCode) 链接:leetcode-cn.com/problem 浅析引导: 比如n=3,1+1+1=1+2=2+1=3,共...
784 Letter Case Permutation Python Java Note that this is a 2^n problem. 1. Recursively generate result with previous result 2. Bin Mask, number of zeor equal to number of alpha3. Python build in product. 804 Unique Morse Code Words Python Java String, Hash and Set. Set is recommended...
Producer-consumer problem in Python : from threading import Thread, Condition import time import random queue = [] MAX_NUM = 10 condition = Condition() class ProducerThread(Thread): def run(self): nums = range(5) global queue while True: condition.acquire() if len(queue) == MAX_NUM: ...
之前在github上写更新,现在搬到简书上。话不多说,直接上题目 16 3Sum Closest Given an array nums of n integers and ...
Leetcode python answers for leetcode No (Link of Problem)Title (Link of Solution) 5Longest Palindromic Substring 6ZigZag Conversion 14Longest Common Prefix 153Sum 184Sum 20Valid Parentheses 29Divide Two Integers 30Substring with Concatenation of All Words ...
但是我今天心血来潮想上洛谷用python写题发现连A+B Problem靠自己都没写出来。 原题就是这样: 输入格式 两个整数以空格分开。 输出格式 一个整数。 输入输出样例 输入:20 30 输出:50 分享27赞 开课吧python吧 语子易 【开课吧python】Python列表练习题1、创建一个空列表,命名为names,往里面添加 Lihua、Rain...