More Problems

• Write a program to check if a queue is valid after a sequence of enqueue and dequeue operations.
• Write a program to find the total number of characters in a queue after various operations.
• Write a program to implement a queue for managing incoming email messages.
• Write a program to check if a queue can be rearranged to form a valid infix expression.
• Write a program to find the first non-repeating character in a queue after multiple operations.
• Write a program to implement a queue for managing customer feedback.
• Write a program to find the maximum product of two elements in a queue.
• Write a program to remove all elements that are not prime from a queue.