More Problems

• Write a program to find the sum of elements in a queue after removing negative numbers.
• Implement a function that simulates a traffic light system using a queue.
• Write a program to find the maximum frequency of characters in a queue after various operations.
• Implement a queue for managing incoming messages in a chat application.
• Write a program to find the longest increasing subsequence of numbers in a queue.
• Implement a function to check if a queue can represent a valid binary tree after multiple operations.
• Write a program to simulate a call center queue for managing incoming calls.
• Implement a queue that supports peek operations on both ends efficiently.