More Problems

• Write a program to check if a string is an isogram.
• Write a program to find the longest palindrome in a string.
• Write a program to check if a number is a happy number using a function.
• Write a program to implement a simple dictionary application.
• Write a program to calculate the sum of squares of even numbers in a range.
• Write a program to find the longest substring with all distinct characters.
• Write a program to implement a basic task organizer.
• Write a program to convert a binary number to hexadecimal.