#计算字符串中有效的表达式 print(eval('pow(2,2)')) print(eval('2+2')) #将字符串转成相应的对象(如list、tuple、dict和string之间的转换) a="[[1,2], [3,4], [5,6], [7,8], [9,0]]" b="(1,2,3,4)" c="{1:'xx',2:'yy'}" print(eval(a)) print(eval(b)) print(eval...
基于Python的强大,此题目可以用一行代码输出这个图形,只是这行代码要堆砌挺长的…… from__future__importprint_functionimportstring N =input() [print((reduce(lambdas,x:s.center(len(s)+2,'-').center(len(s)+4,x),[itemforiteminstring.lowercase[N-i:N]])).center(4*N-3,'-'))foriinrange...
功能说明(Function Description) Complete the miniMaxSum function in the editor below. miniMaxSum has the following parameter(s): arr: an array of 5 integers 在下面的编辑器中完成miniMaxSum函数。 miniMaxSum 具有以下参数: arr : 一个数组5个整数 打印(Print) Print two space-separated integers on one...
Your range() loop starts at 0 , so you print n spaces and zero # characters on the first line. Start your range() at 1, and n should start at num_stairs - 2 (as Multiple arguments to print() adds a space: from __future__ import print_function def staircase(num_stairs): n = ...
代码语言:python 代码运行次数:0 复制 Cloud Studio代码运行 importre pattern=r'\.'# 正则表达式模式,匹配句点字符text='This is a sentence. This is another sentence.'matches=re.findall(pattern,text)# 使用re.findall()函数查找所有匹配项print(matches)# 输出匹配结果 ...
Python语言中的HackerRank记号和玩具问题 基础概念 HackerRank 是一个在线编程挑战平台,提供了各种编程问题和竞赛,旨在帮助开发者提高编程技能。HackerRank 上的“记号和玩具”问题(通常称为 "Mark and Toys" 问题)是一个典型的贪心算法问题。 问题描述 问题通常描述为:给定一组玩具的价格和一个预算,求在预算内最多能...
/bin/python3importmathimportosimportrandomimportreimportsys#Complete the solve function below.defsolve(meal_cost, tip_percent, tax_percent): totalCost= meal_cost+ meal_cost*(tip_percent/100)+meal_cost*(tax_percent/100) totalCost=round(totalCost)print(totalCost)if__name__=='__main__':...
Introduction Python: Division Easy 10 Solution.py Introduction Loops Easy 10 Solution.py Introduction Write a function Medium 10 Solution.py Introduction Print Function Easy 20 Solution.py Distributed Systems SubdomainChallengeDifficultyScoreSolution Multiple Choise RPC - 1 Easy 10 Solution.txt Multiple Ch...
/bin/python3importmathimportosimportrandomimportreimportsys# Complete the checkMagazine function below.defcheckMagazine(magazine,note):m={}forwordinmagazine:ifwordnotinm:m[word]=1else:m[word]+=1forwordinnote:ifwordnotinmorm[word]<1:return'No'else:m[word]-=1return'Yes'if__name__=='__...
Hackerrank Python Tutorial Solutions. Contribute to sonmez-hakan/hackerrank-python development by creating an account on GitHub.