摘要:一套全面的练习,大家智慧的结晶大家好,好久不见,我最近在上发现了一个好东西,是关于夯实基础的道题,原作者是在的时候创建的,闲来无事,非常适合像我一样的小白来练习对于每一道题,解法都不唯一,我在这里仅仅是抛砖引玉,希望可以集合大家的智慧,如果
一套全面的练习,大家智慧的结晶
大家好,好久不见,我最近在Github上发现了一个好东西,是关于夯实Python基础的100道题,原作者是在Python2的时候创建的,闲来无事,非常适合像我一样的小白来练习
对于每一道题,解法都不唯一,我在这里仅仅是抛砖引玉,希望可以集合大家的智慧,如果哪道题有其他解法,希望可以在评论中留下大家宝贵的意见!每次我会更新10道题,一共会更新10篇,这也算是对我之前的文章一个总结啦,如果没有看到我之前有关Python的小白学习分享的同学们,可以戳下面连接查看哈:
Python 基础起步,写给同为小白的你
Python 进阶之路
Python Pandas 之旅
如果大家想要和我联系,可以访问我的个人主页:
我的个人主页
好啦,闲话少说,让我们开始今天的刷题之旅吧!
Question 1:Write a program which will find all such numbers which are divisible by 7 but are not a multiple of 5,between 2000 and 3200 (both included).The numbers obtained should be printed in a comma-separated sequence on a single line.解法一
for i in range(2000,3201): if i%7 == 0 and i%5!=0: print(i,end=",") print("")解法二
numbers = [str(x) for x in range(2000,3201) if (x%7==0) and (x%5!=0)] print (",".join(numbers))Question 2:
*Write a program which can compute the factorial of a given numbers.The results should be printed in a comma-separated sequence on a single line.Suppose the following input is supplied to the program: 8解法一
Then, the output should be:40320*
def fact(x): if x == 0: return 1 return x * fact(x - 1) x=int(input()) print(fact(x))解法二
import math as ma x=int(input()) print(ma.factorial(x))解法三
from functools import reduce from operator import mul x=int(input()) print(reduce(mul,range(1,x+1)))Question 3:
With a given integral number n, write a program to generate a dictionary that contains (i, i x i) such that is an integral number between 1 and n (both included). and then the program should print the dictionary.Suppose the following input is supplied to the program: 8Then, the output should be:
{1: 1, 2: 4, 3: 9, 4: 16, 5: 25, 6: 36, 7: 49, 8: 64}
n=int(input()) d=dict() for i in range(1,n+1): d[i]=i*i print(d)解法二
n=int(input()) d={x:x*x for x in range(1,n+1)} print(d)Question 4:
Write a program which accepts a sequence of comma-separated numbers from console and generate a list and a tuple which contains every number.Suppose the following input is supplied to the program:
34,67,55,33,12,98
Then, the output should be:
["34", "67", "55", "33", "12", "98"] ("34", "67", "55", "33", "12", "98")解法一
values=input() l=values.split(",") t=tuple(l) print(f"List of values : {l}") print(f"Tuple of values : {t}")Question 5:
Define a class which has at least two methods:
getString: to get a string from console input
printString: to print the string in upper case.
Also please include simple test function to test the class methods.
class InputOutString: def __init__(self): self.s = "" def getString(self): self.s = input() def printString(self): print(self.s.upper()) # Test a = InputOutString() a.getString() a.printString()Question 6:
Write a program that calculates and prints the value according to the given formula:Q = Square root of [(2 C D)/H]
Following are the fixed values of C and H:
C is 50. H is 30.
D is the variable whose values should be input to your program in a comma-separated sequence.For example
Let us assume the following comma separated input sequence is given to the program:*
100,150,180
The output of the program should be:
18,22,24
import math c=50 h=30 value = [] items= [x for x in input("Input numbers comma-separated:").split(",")] for d in items: value.append(str(int(round(math.sqrt(2*c*float(d)/h))))) print (",".join(value))Question 7:
Write a program which takes 2 digits, X,Y as input and generates a 2-dimensional array. The element value in the i-th row and j-th column of the array should be i * j.Note: i=0,1.., X-1; j=0,1,¡Y-1. Suppose the following inputs are given to the program: 3,5
Then, the output of the program should be:
[[0, 0, 0, 0, 0], [0, 1, 2, 3, 4], [0, 2, 4, 6, 8]]
x,y = map(int,input().split(",")) lst = [] for i in range(x): tmp = [] for j in range(y): tmp.append(i*j) lst.append(tmp) print(lst)解法二
x,y = map(int,input().split(",")) lst = [[i*j for j in range(y)] for i in range(x)] print(lst)Question 8:
Write a program that accepts a comma separated sequence of words as input and prints the words in a comma-separated sequence after sorting them alphabetically.Suppose the following input is supplied to the program:
without,hello,bag,world
Then, the output should be:
bag,hello,without,world
original_string = input("Input Text:") l = original_string.split(",") final_string = sorted(l,key=str) print(",".join(final_string))解法二
lst = input().split(",") lst.sort() print(",".join(lst))Question 9:
Write a program that accepts sequence of lines as input and prints the lines after making all characters in the sentence capitalized.Suppose the following input is supplied to the program:
Hello world Practice makes perfect
Then, the output should be:
HELLO WORLD PRACTICE MAKES PERFECT
lines = [] while True: s = input() if s: lines.append(s.upper()) else: break; for sentence in lines: print(sentence)Question 10:
Write a program that accepts a sequence of whitespace separated words as input and prints the words after removing all duplicate words and sorting them alphanumerically.Suppose the following input is supplied to the program:
hello world and practice makes perfect and hello world again
Then, the output should be:
again and hello makes perfect practice world
word = input().split() for i in word: if word.count(i) > 1: #count function returns total repeatation of an element that is send as argument word.remove(i) # removes exactly one element per call word.sort() print(" ".join(word))解法二
s = input("Input Text:") words = [word for word in s.split(" ")] print (" ".join(sorted(list(set(words)))))源代码下载
我把前十道题的代码上传到github上啦,如果大家想看一下每道题的输出结果,可以点击以下链接下载:
Python 1-10题
我的运行环境Python 3.6+,如果你用的是Python 2.7版本,绝大多数不同就体现在以下3点:
raw_input()在Python3中是input()
print需要加括号
fstring 可以换成.format(), 或者%s,%d
谢谢大家,我们下期见!希望各位朋友不要吝啬,把每道题的更高效的解法写在评论里,我们一起进步!!!
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