More Problems

• Write a program to simulate a ticket sales queue for a concert.
• Implement a queue that supports rolling back the last operation.
• Write a program to find the longest valid parentheses substring using a queue and stack.
• Implement a queue for managing customer service requests.
• Write a program to find the shortest path in a weighted graph using Dijkstras algorithm.
• Implement a function to merge multiple sorted queues into one.
• Write a program to check if a queue can be rearranged to form a valid palindrome.
• Implement a queue that allows batch processing of elements.