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Articles tagged with #python-beginner
Write a Python program to count the number of occurrences of a given element in a given list. def count_occurrences(lst, element_to_count): count = 0 for item in lst: if item == element_to_count: count += 1 return coun...
Write a Python program to find the missing number in a given array of integers. array = [1,2,3,4,5,7,8,9] n = len(array) + 1 total_sum = (n * (n + 1)) // 2 array_sum = sum(array) missing_number = total_sum - array_sum print(missing_number) Output : ...
Write a Python program to reverse a given list. n=[1,2,35,4] print(n[::-1]) Output : [4, 35, 2, 1] The expression n[::-1] is used to create a new list that contains the elements of n in reverse order. The [::-1] part is called slicing with a step v...
Write a Python program to find the sum of all even numbers between 1 and a given number. n=int(input("enter the number")) sum=0 for i in range(0,n+1): if i%2==0: sum+=i print(sum) Output : enter the number10 30 The user is prompted to ...
Write a Python program to Check whether the given number is prime or not. n=int(input("Enter the number: ")) if n < 2 : is_prime= False else: is_prime= True for i in range(2,int(n**0.5)+1): if n%i==0: is_prime= False...
Write a Python program to check whether a given number is a prime number or not:- num = int(input("Enter a number: ")) result = "" i = 2 while i * i <= num: if num % i == 0: result = "not " break i += 1 if num < 2 or result...
