More Problems

• Implement a function to check if a string is a valid email.
• Create a program to calculate the sum of the first n triangular numbers.
• Write a program to find the total number of prime numbers in a list.
• Implement a function to find the area of a rectangle given its length and width.
• Create a program to check if a number is a palindromic prime.
• Write a program to calculate the product of all digits in a number.
• Implement a function to find the maximum number in an array.
• Create a program to calculate the number of even and odd numbers in an array.