More Problems

• Implement a function to calculate the sum of squares of all even numbers in a list.
• Create a program to find the greatest product of three numbers in an array.
• Write a program to determine if a number is a Harshad number.
• Implement a function to calculate the average of a set of numbers.
• Create a program to find the sum of the first n even numbers.
• Write a program to find the longest palindromic substring in a string.
• Implement a function to check if a number is a square number.
• Create a program to compute the number of unique characters in a string.