More Problems

• Write a program to find the minimum element in a 2D array.
• Write a program to implement a simple text-based calendar.
• Write a program to find the index of the first occurrence of a character in a string.
• Write a program to check if a number is a perfect number.
• Write a program to print all combinations of two digits.
• Write a program to calculate the perimeter of a rectangle.
• Write a program to implement a basic text file reader.
• Write a program to check if a string contains all unique characters.