More Problems

• Write a program to check if a string is a valid time in the format HH
• Write a program to find the first non-repeating digit in a string.
• Write a program to implement a basic online shopping application.
• Write a program to check if a number is an abundant number using a function.
• Write a program to find the total number of characters in a string excluding whitespace.
• Write a program to implement a simple online ticket booking system.
• Write a program to check if a string is a valid date in the format DD-MM-YYYY.
• Write a program to find the longest common prefix in a set of strings.