More Problems

• Implement a function to calculate the sum of squares of the first n natural numbers.
• Create a program to find the minimum value in a list of numbers.
• Write a function to check if a number is a perfect number.
• Implement a program to find the number of prime numbers in a given range.
• Create a function to calculate the sum of two fractions.
• Write a program to generate all combinations of a string.
• Implement a program to check if a string is a valid identifier.
• Create a function to find the second largest number in an array.