More Problems

• Write a program to implement a simple online ticket booking application.
• Write a program to check if a string is a valid time in the format HH:MM
• Write a program to find the sum of all digits in a number using a function.
• Write a program to implement a basic job scheduling system.
• Write a program to check if two strings are anagrams of each other using sorting.
• Write a program to find the first unique character in a string using a frequency count.
• Write a program to implement a simple online bookstore with inventory management.
• Write a program to check if a string is a valid binary number.