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Main.java
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package com.ds_algo.e_queue;
import com.ds_algo.e_queue.circle.CircleQueue;
import com.ds_algo.e_queue.circle.CircleDeque;
@SuppressWarnings("unused")
public class Main {
public static void test1(){
Queue<Integer> queue = new Queue<>();
queue.enQueue(11);
queue.enQueue(12);
queue.enQueue(13);
queue.enQueue(13);
queue.enQueue(14);
while (!queue.isEmpty()){
System.out.println(queue.deQueue());
}
}
public static void test2(){
Deque<Integer> queue = new Deque<>();
queue.enQueueFront(11);
queue.enQueueFront(22);
queue.enQueueRear(33);
queue.enQueueRear(44);
while (!queue.isEmpty()) {
/* 尾 44 33 11 22 头 */
System.out.println(queue.deQueueRear());
}
}
public static void test3(){
CircleQueue<Integer> queue = new CircleQueue<>();
// 0 1 2 3 4 5 6 7 8 9
for (int i = 0; i < 10; i++) {
queue.enQueue(i);
}
// null null null null null 5 6 7 8 9
for (int i = 0; i < 5; i++) {
queue.deQueue();
}
// 15 16 17 18 19 5 6 7 8 9
for (int i = 15; i < 20; i++) {
queue.enQueue(i);
}
System.out.println(queue);
while (!queue.isEmpty()){
System.out.println(queue.deQueue());
}
}
public static void test4() {
CircleDeque<Integer> queue = new CircleDeque<>();
// 头5 4 3 2 1 100 101 102 103 104 105 106 8 7 6 尾
// 头 8 7 6 5 4 3 2 1 100 101 102 103 104 105 106 107 108 109 null null 10 9 尾
for (int i = 0; i < 10; i++) {
queue.enQueueFront(i + 1);
queue.enQueueRear(i + 100);
}
// 头 null 7 6 5 4 3 2 1 100 101 102 103 104 105 106 null null null null null null null 尾
for (int i = 0; i < 3; i++) {
queue.deQueueFront();
queue.deQueueRear();
}
// 头 11 7 6 5 4 3 2 1 100 101 102 103 104 105 106 null null null null null null 12 尾
queue.enQueueFront(11);
queue.enQueueFront(12);
System.out.println(queue);
while (!queue.isEmpty()) {
System.out.println(queue.deQueueFront());
}
}
public static void main(String[] args) {
// test2();
// test3();
test4();
}
}