Topic: queue-problem / Level: advanced

• 2901. Write a program to implement a queue that supports retrieval of the median in O(1) time.
• 2902. Write a program to find the longest palindromic substring using a queue and dynamic programming.
• 2903. Implement a function that uses a queue to track the state of a game or simulation for rollback functionality.
• 2904. Write a program to simulate a customer feedback queue with priority handling.
• 2905. Implement a priority queue that supports both increasing and decreasing priorities for tasks.
• 2906. Write a program to find the shortest path in a grid with obstacles using BFS and a queue.
• 2907. Implement a queue that allows for reordering of elements based on custom criteria.
• 2908. Write a program to determine if a sequence can represent a valid queue sequence after multiple operations.
• 2909. Implement a function that tracks the maximum and minimum values in a queue efficiently.
• 2910. Write a program to simulate a round-robin scheduling algorithm using a queue.
• 2911. Implement a queue for managing event notifications in a mobile application.
• 2912. Write a program to find the longest contiguous subsequence of numbers that can be formed from a queue.
• 2913. Implement a queue that supports undo operations for the last k operations.
• 2914. Write a program to find the maximum product of k elements in a queue.
• 2915. Implement a function that generates all unique permutations of a given string using a queue.
• 2916. Write a program to find the longest subsequence of characters that can form a valid palindrome.
• 2917. Implement a queue for managing incoming customer service requests.
• 2918. Write a program to check if a queue can represent a valid sequence of operations for a binary search tree.
• 2919. Implement a function that merges two sorted queues into a single sorted queue.
• 2920. Write a program to find the first unique character in a stream of characters using a queue.
• 2921. Implement a queue that allows dynamic resizing based on the number of elements.
• 2922. Write a program to find the longest increasing subsequence of characters in a queue.
• 2923. Implement a queue for managing job applications in a hiring process.
• 2924. Write a program to simulate a print job queue for a printer with multiple jobs.
• 2925. Implement a function that checks if two queues can represent the same sequence of operations.
• 2926. Write a program to find the average of elements in a queue after removing duplicates.
• 2927. Implement a queue for managing scheduled tasks in a project management application.
• 2928. Write a program to find the longest valid parentheses substring using a queue.
• 2929. Implement a circular queue for managing tasks in a project.
• 2930. Write a program to check if a queue can represent a valid sequence of operations for a stack.
• 2931. Implement a function that simulates a traffic light system using a queue.
• 2932. Write a program to track the order of operations in a queue for a sequence of tasks.
• 2933. Implement a queue for managing user sessions in a web application with expiration features.
• 2934. Write a program to find the maximum frequency of characters in a queue after multiple enqueue operations.
• 2935. Implement a circular queue that allows simultaneous enqueue and dequeue operations from both ends.
• 2936. Write a program to find the longest contiguous subsequence of prime numbers in a queue.
• 2937. Implement a function to check if a queue can represent a valid sequence of operations for a double-ended queue.
• 2938. Write a program to track the last k elements added to a queue.
• 2939. Implement a queue that supports lazy deletion of its elements.
• 2940. Write a program to find the longest palindromic substring in a queue of characters.
• 2941. Implement a queue for managing scheduled notifications in a messaging app.
• 2942. Write a program to find the average of numbers in a queue after removing odd numbers.
• 2943. Implement a function that uses a queue to simulate a job processing system.
• 2944. Write a program to find the first unique integer in a queue after several operations.
• 2945. Implement a queue for managing tasks in a multi-threaded environment.
• 2946. Write a program to check if a queue can represent a valid sequence of operations for a binary search tree.
• 2947. Implement a function to find the total number of distinct characters in a queue after multiple operations.
• 2948. Write a program to find the longest contiguous subsequence of characters in a queue that can form a palindrome.
• 2949. Implement a queue for managing orders in a restaurant with different priorities.
• 2950. Write a program to simulate a bank queue with customers arriving at random intervals.

• More Levels

• Beginner
• Intermediate