Topic: queue-problem / Level: intermediate

• 1851. Write a program to check if two queues can represent a valid sequence of operations.
• 1852. Write a program to simulate a food delivery queue for restaurants.
• 1853. Write a program to find the first unique integer in a queue after various operations.
• 1854. Write a program to implement a circular queue for managing tasks in a project.
• 1855. Write a program to find the smallest number in a queue after multiple operations.
• 1856. Write a program to check if a queue can represent a valid sequence of stack operations.
• 1857. Write a program to implement a queue for managing customer inquiries in a helpdesk.
• 1858. Write a program to find the maximum frequency of elements in a queue after multiple operations.
• 1859. Write a program to check if a queue can represent a valid binary search tree.
• 1860. Write a program to find the longest contiguous subsequence of even numbers in a queue.
• 1861. Write a program to implement a queue for managing event ticket sales.
• 1862. Write a program to find the average of numbers in a queue after removing duplicates.
• 1863. Write a program to check if two queues can represent a valid sequence of operations.
• 1864. Write a program to simulate a job processing queue for a system.
• 1865. Write a program to find the total number of distinct characters in a queue after several operations.
• 1866. Write a program to implement a queue that allows retrieving both the maximum and minimum elements.
• 1867. Write a program to find the first unique character in a queue after multiple enqueue operations.
• 1868. Write a program to implement a circular queue using arrays for managing tasks.
• 1869. Write a program to find the sum of elements in a queue after removing negative numbers.
• 1870. Write a program to check if two queues can represent a valid binary tree.
• 1871. Write a program to find the longest subsequence of odd integers in a queue.
• 1872. Write a program to implement a queue for managing user registrations.
• 1873. Write a program to find the average of elements in a queue after removing odd numbers.
• 1874. Write a program to check if a queue is valid based on enqueue and dequeue operations.
• 1875. Write a program to implement a queue for managing feedback submissions.
• 1876. Write a program to find the maximum product of two numbers in a queue after various operations.
• 1877. Write a program to check if a queue can represent a valid sequence of operations.
• 1878. Write a program to simulate a customer service queue for inquiries.
• 1879. Write a program to find the first unique integer in a queue after various operations.
• 1880. Write a program to implement a circular queue for managing project tasks.
• 1881. Write a program to find the smallest number in a queue after several operations.
• 1882. Write a program to check if a queue can represent a valid binary search tree.
• 1883. Write a program to find the longest contiguous subsequence of characters in a queue.
• 1884. Write a program to implement a queue for managing online feedback.
• 1885. Write a program to find the average of numbers in a queue after removing duplicates.
• 1886. Write a program to check if two queues can represent a valid sequence of operations.
• 1887. Write a program to simulate a ticket sales queue for an event.
• 1888. Write a program to implement a queue for managing food orders.
• 1889. Write a program to find the total number of distinct characters in a queue after various operations.
• 1890. Write a program to implement a circular queue that resizes based on demand.
• 1891. Write a program to find the maximum frequency of characters in a queue after multiple operations.
• 1892. Write a program to check if a queue can represent a valid infix expression.
• 1893. Write a program to implement a queue for managing student feedback.
• 1894. Write a program to find the first unique character in a queue after multiple operations.
• 1895. Write a program to simulate a job processing queue for a company.
• 1896. Write a program to implement a queue for managing customer inquiries in a helpdesk.
• 1897. Write a program to find the longest subsequence of even integers in a queue.
• 1898. Write a program to check if two queues can represent a valid binary search tree.
• 1899. Write a program to find the smallest number in a queue after multiple operations.
• 1900. Write a program to simulate a food delivery queue for restaurants.

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