More Problems

• Write a program to check if a queue is a valid expression after operations.
• Write a program to find the frequency of the maximum element in a queue.
• Write a program to implement a queue that supports multiple operations.
• Write a program to find the total number of distinct elements in a queue.
• Write a program to remove elements at even indices from a queue.
• Write a program to implement a queue using an array with circular indexing.
• Write a program to determine if a queue can represent a valid postfix expression.
• Write a program to find the first unique character after multiple operations in a queue.