# Program to check if a number is prime or not num = 29 # To take input from the user #num = int(input("Enter a number: ")) # define a flag variable flag = False if num == 0 or num == 1: print(num, "is not a prime number") elif num > 1: # check for factors for...
prime number python代码 primes在python 1.题目 2.代码 import os import sys # 请在此输入您的代码 def countPrimes(n): primes=[1]*n count=0 li=[] for i in range(2,n): if primes[i]: count+=1 li.append(i) for j in range(i*i,n,i): primes[j]=0 return count,li n=int(input...
Check outWrite a Program to Check Whether a Number is Prime or not in Python Method 3: Using Python’s Built-in Libraries Python’ssympylibrary includes a function to generate prime numbers. This method is straightforward and leverages the power of existing libraries. Example: Here is a prime...
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# this program will overwrite that file: outputFilename = 'frankenstein.encrypted.txt' myKey = 10 myMode = 'encrypt' # Set to 'encrypt' or 'decrypt'. # If the input file does not exist, the program terminates early: if not os.path.exists(inputFilename): ...
This function does a quicker # prime number check before calling rabinMiller(). if (num < 2): return False # 0, 1, and negative numbers are not prime. 当num不小于2时,我们也可以使用LOW_PRIMES列表作为测试num的快捷方式。检查num是否能被所有小于 100 的质数整除不会明确地告诉我们这个数是否是...
flag1=prime(k)#调用prime函数ifflag1:#如果k为素数 flag2=prime(j)#调用prime函数ifflag2:#如果k和j都是素数print(i,'=',k,'+',j)#输出结果 n+=k=k+ 结果如下。 在这里插入图片描述 三、参考 1、廖雪峰的官网 2、python官网 ...
using System;publicclassHappyProgram{publicstaticvoidMain(){ Console.WriteLine("Enter a number: ");intYourNumber=Convert.ToInt16(Console.ReadLine());if(YourNumber >10) Console.WriteLine("Your number is greater than ten");if(YourNumber <=10) Console.WriteLine("Your number is ten or smaller"...
Keep a limit to how far the program will go. Fibonacci Sequence - Enter a number and have the program generate the Fibonacci sequence to that number or to the Nth number. Prime Factorization - Have the user enter a number and find all Prime Factors (if there are any) and display them....
Note the placement of parentheses that help scope that text will refer to the text in the file and not the number of lines.The program still functions the same, although the word and character counts have changed:Shell $ python wc.py wc.py 11 34 293 wc.py ...