More Problems

• Write a program to implement a queue for managing event participants.
• Write a program to find the first unique integer in a queue after operations.
• Write a program to check if a queue can be rearranged to form a valid infix expression.
• Write a program to find the number of even elements in a queue after operations.
• Write a program to implement a queue that allows enqueue and dequeue in O(1) time.
• Write a program to find the total number of items in a queue after multiple operations.
• Write a program to implement a queue for managing a library system.
• Write a program to find the longest sequence of even integers in a queue.