More Problems

• Write a program to check if a string is a valid date in the format YYYY-MM-DD.
• Write a program to implement a simple file search application.
• Write a program to find the first non-repeating digit in a number.
• Write a program to check if two strings are equal ignoring case and punctuation.
• Write a program to calculate the average of grades entered until a sentinel value is reached.
• Write a program to implement a simple online attendance tracking system.
• Write a program to find the sum of all even numbers in a range.
• Write a program to check if a string contains balanced square brackets.