代码(Python3) # Definition for singly-linked list. # class ListNode: # def __init__(self, val=0, next=None): # self.val = val # self.next = next class Solution: def addTwoNumbers(self, l1: Optional[ListNode], l2:
1.When version1 and version2 are not finished, compare the value of corresponding string before dot. 2.If version1 is finished, check whether remaining version2 contains string not equal to 0 3.If version2 is finished, check whether remaining version1 contains string not equal to 0 Example1...
Here is an example of version numbers ordering: 0.1 < 1.1 < 1.2 < 13.37 Credits: Special thanks to@tsfor adding this problem and creating all test cases. Solution: 1classSolution:2#@param version1, a string3#@param version2, a string4#@return an integer5defcompareVersion(self, version1...
Python练习篇——Leetcode 2. 两数相加(Add Two Numbers) 编程岛 1 人赞同了该文章 注:本文基于64位windows系统(鼠标右键点击桌面“此电脑”图标——属性可查看电脑系统版本)、python3.x(pycharm自动安装的版本, 3.0以上)。 文中代码内容所使用的工具是pycharm-community-2020.1,实践中如有碰到问题,可留言提问...
Python 的leecode问题问题:Given an array of integers, find two numbers such that they add up to a specific target number.The function twoSum should return indices of the two numbers such that they add up to the target, where index1 must be less than index2. Please note that your returned...
【LeetCode】445. Add Two Numbers II 两数相加 II 本文关键词:两数相加,链表,求加法,题解,leetcode, 力扣,python, c++, java 目录 题目描述 题目大意 解题方法 前言 十进制加法...
Add Two Numbers II 解题报告(Python) 标签(空格分隔): LeetCode 题目地址:https://leetcode.com/problems/add-two-numbers-ii/description/ 题目描述: You are given two non-empty linked lists representing two non-negative integers. The most significant digit comes first and each of their nodes ...
Chapter 4. Code Reuse: Functions and Modules Reusing code is key to building a maintainable system. And when it comes to reusing code in Python, it all starts and ends … - Selection from Head First Python, 2nd Edition [Book]
The pytest third-party library is a popular testing framework in Python. At its core, you’ll find the assert statement, which you can use to write most of your test cases in pytest. Here are a few examples of writing test cases using assert statements. The examples below take advantage ...
In this situation, you can use a class-level setup fixture to create the instance of Stack and reuse it in every test: Python test_stack.py import unittest from stack import Stack class TestStack(unittest.TestCase): def setUp(self): self.stack = Stack() def tearDown(self): del self....