39 lines
855 B
Kotlin
39 lines
855 B
Kotlin
/**
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* File: queue.kt
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* Created Time: 2024-01-25
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* Author: curtishd (1023632660@qq.com)
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*/
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package chapter_stack_and_queue
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import java.util.*
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/* Driver Code */
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fun main() {
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/* Initialize queue */
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val queue = LinkedList<Int>()
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/* Element enqueue */
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queue.offer(1)
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queue.offer(3)
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queue.offer(2)
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queue.offer(5)
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queue.offer(4)
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println("Queue queue = $queue")
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/* Access front element */
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val peek = queue.peek()
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println("Front element peek = $peek")
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/* Element dequeue */
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val pop = queue.poll()
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println("Dequeue element pop = $pop, queue after dequeue = $queue")
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/* Get the length of the queue */
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val size = queue.size
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println("Queue length size = $size")
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/* Determine if the queue is empty */
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val isEmpty = queue.isEmpty()
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println("Is the queue empty = $isEmpty")
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} |