Topic: queue-problem / Level: advanced

• 2051. Implement a function to sort a queue using recursive methods.
• 2052. Write a program to find the longest consecutive sequence of numbers in a queue.
• 2053. Implement a queue for managing tickets in a customer service application.
• 2054. Write a program to check if a queue can represent a valid sequence of operations in a double-ended queue.
• 2055. Implement a function to find the maximum length of a substring with at most k distinct characters using a queue.
• 2056. Write a program to simulate a multi-tasking environment using a queue.
• 2057. Implement a queue that supports rollback operations.
• 2058. Write a program to find the shortest distance from a source node to all other nodes in a graph using BFS.
• 2059. Implement a function that checks if a queue can be transformed into a stack using push and pop operations.
• 2060. Write a program to find the most frequently occurring element in a queue.
• 2061. Implement a queue for managing scheduled events in a calendar application.
• 2062. Write a program to determine the order of processing based on task dependencies using a queue.
• 2063. Implement a function that uses a queue to find all paths from a source node to a destination node in a graph.
• 2064. Write a program to find the longest increasing subsequence of numbers in a queue.
• 2065. Implement a function to compute the maximum area of a rectangle in a histogram using a queue.
• 2066. Write a program to track the last n elements added to a queue.
• 2067. Implement a queue for managing user messages in a chat application.
• 2068. Write a program to find the longest palindrome substring in a queue of characters.
• 2069. Implement a queue that can maintain a history of operations for undo/redo functionality.
• 2070. Write a program to find the shortest path in an unweighted grid using BFS with a queue.
• 2071. Implement a function to merge two queues without using extra space.
• 2072. Write a program to find the first repeated element in a stream using a queue.
• 2073. Implement a queue that supports dynamic resizing.
• 2074. Write a program to determine the minimum number of operations required to convert one queue into another.
• 2075. Implement a queue for managing tasks in a project with dependencies.
• 2076. Write a program to find the longest subsequence of characters that can be formed from a given queue.
• 2077. Implement a function that uses a queue to find all unique combinations of k numbers from 1 to n.
• 2078. Write a program to evaluate an infix expression using a queue.
• 2079. Implement a queue that allows for element priorities.
• 2080. Write a program to find the largest rectangle in a binary matrix using a queue.
• 2081. Implement a queue for managing multi-threaded tasks.
• 2082. Write a program to find the minimum number of swaps required to sort a queue.
• 2083. Implement a function that checks if a given string can be formed by removing characters from a queue.
• 2084. Write a program to find the maximum sum of k non-overlapping subarrays in a queue.
• 2085. Implement a queue for managing timed tasks in a scheduling application.
• 2086. Write a program to determine if a sequence of numbers can represent a valid queue.
• 2087. Implement a function that uses a queue to track the current state of a game.
• 2088. Write a program to find the first k unique characters in a stream using a queue.
• 2089. Implement a queue that supports merging two queues.
• 2090. Write a program to find the longest subsequence of numbers that can be formed from a given queue.
• 2091. Implement a priority queue for scheduling tasks based on deadlines.
• 2092. Write a program to check if a queue can represent a valid sequence of stack operations.
• 2093. Implement a function that uses a queue to find all subsets of a given set.
• 2094. Write a program to find the first unique integer in a stream of numbers using a queue.
• 2095. Implement a queue for managing order processing in an e-commerce application.
• 2096. Write a program to find the longest increasing subsequence in a queue of characters.
• 2097. Implement a queue that supports retrieval of elements based on their frequency.
• 2098. Write a program to find the total number of elements in a queue after several enqueue and dequeue operations.
• 2099. Implement a queue for managing online orders and deliveries.
• 2100. Write a program to check if a sequence of numbers can represent a valid sequence of operations in a double-ended queue.

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