More Problems

• Write a program to find the sum of all even numbers in a queue after operations.
• Write a program to check if a queue can represent a valid sequence of stack operations.
• Write a program to implement a queue for managing student attendance.
• Write a program to find the longest contiguous subsequence of prime numbers in a queue.
• Write a program to check if a queue can represent a valid binary tree after operations.
• Write a program to implement a queue for managing online courses.
• Write a program to find the smallest number in a queue after several operations.
• Write a program to find the first non-repeating character in a queue after multiple enqueue operations.