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# Given a number n, print all primes smaller than or equal to n. It is also given that n is a small number.# For example, if n is 10, the output should be “2, 3, 5, 7”. If n is 20, the output should be “2, 3, 5, 7, 11, 13, 17, 19”.# Python program to print all primes smaller than or equal to# n using Sieve of Eratosthenesdef SieveOfEratosthenes(n):# Create a boolean array "prime[0..n]" and initialize# all entries it as true. A value in prime[i] will# finally be false if i is Not a prime, else true.prime = [True for i in range(n + 1)]p = 2while (p * p <= n):# If prime[p] is not changed, then it is a primeif (prime[p] == True):# Update all multiples of pfor i in range(p * 2, n + 1, p):prime[i] = Falsep += 1prime[0]= Falseprime[1]= False# Print all prime numbersfor p in range(n + 1):if prime[p]:print (p)# driver programif __name__=='__main__':n = 30print("Following are the prime numbers smaller")print("than or equal to ", n)print("than or equal to ", n)SieveOfEratosthenes(n)
filename = "data.txt"with open(filename, "r") as file:file_contents = file.readlines()file_contents = [line.strip() for line in file_contents]print("File contents:")for line in file_contents:print(line)
# Listlst = [1, 2, 3, 'Alice', 'Alice']# One-Linerindices = [i for i in range(len(lst)) if lst[i]=='Alice']# Resultprint(indices)# [3, 4]
prime_lists=[] # a list to store the prime numbersdef prime(n): # define prime numbersif n <= 1:return False# divide n by 2... up to n-1for i in range(2, n):if n % i == 0: # the remainder should'nt be a 0return Falseelse:prime_lists.append(n)return Truefor n in range(30,1000): # calling function and passing starting point =30 coz we need primes >30prime(n)check=0 # a var to limit the output to 10 onlyfor n in prime_lists:for x in prime_lists:val= n *xif (val > 1000 ):check=check +1if (check <10) :print("the num is:", val , "=",n , "* ", x )break
# function which return reverse of a stringdef isPalindrome(s):return s == s[::-1]# Driver codes = "malayalam"ans = isPalindrome(s)if ans:print("Yes")else:print("No")
import sys# sample TuplesTuple1 = ("A", 1, "B", 2, "C", 3)Tuple2 = ("Geek1", "Raju", "Geek2", "Nikhil", "Geek3", "Deepanshu")Tuple3 = ((1, "Lion"), ( 2, "Tiger"), (3, "Fox"), (4, "Wolf"))# print the sizes of sample Tuplesprint("Size of Tuple1: " + str(sys.getsizeof(Tuple1)) + "bytes")print("Size of Tuple2: " + str(sys.getsizeof(Tuple2)) + "bytes")print("Size of Tuple3: " + str(sys.getsizeof(Tuple3)) + "bytes")