More Problems

• Write a program to find the total number of uppercase letters in a string.
• Write a program to implement a basic online journal.
• Write a program to check if a string is a valid time in 24-hour format.
• Write a program to find the maximum frequency of any digit in a number.
• Write a program to implement a simple character frequency counter.
• Write a program to find the total number of elements in a linked list.
• Write a program to check if a string is a valid HTML tag.
• Write a program to find the longest decreasing subsequence in an array.