More Problems

• Write a program to check if a queue can represent a valid sequence of operations for a stack.
• Write a program to find the sum of elements in a queue after removing odd numbers.
• Write a program to implement a queue for managing student registration processes.
• Write a program to find the first unique character in a queue after multiple enqueue and dequeue operations.
• Write a program to check if a queue can represent a valid binary tree after operations.
• Write a program to implement a circular queue for managing tasks in a project.
• Write a program to find the total number of distinct elements in a queue after several operations.
• Write a program to check if two queues can represent a valid sequence of stack operations.