More Problems

• Write a program to check if a queue can represent a valid sequence of operations in a double-ended queue.
• Implement a function to find the maximum length of a substring with at most k distinct characters using a queue.
• Write a program to simulate a multi-tasking environment using a queue.
• Implement a queue that supports rollback operations.
• Write a program to find the shortest distance from a source node to all other nodes in a graph using BFS.
• Implement a function that checks if a queue can be transformed into a stack using push and pop operations.
• Write a program to find the most frequently occurring element in a queue.
• Implement a queue for managing scheduled events in a calendar application.