华为OD笔试题

import java.util.Scanner;

public class TestOne{
	
	public static void main(String[] args) {
		Scanner scanner = new Scanner(System.in);
		int height = 0;
		int num = 0;
		for(int i = 0;i < 2;i++ ) {
			if(i == 0) {
				height = scanner.nextInt();
				System.out.println("height: " + height);
			}
			if(i == 1) {
				num = scanner.nextInt();
				System.out.println("num: " + num);
			}
		}
		int[] list = new int[num];
		if(num > 0 && num < 50)
			for(int i = 0; i < num;i++) {
				int h = scanner.nextInt();
				if(h <= 0 || h >= 200)
					break;
				list[i] = h;
			}
		System.out.println("数组遍历1: ");
		for(int i =0; i < list.length; i ++) {
			System.out.println(list[i] + " ");
		}
		System.out.println("list.length: " + list.length);
		if(list.length == num)
			// 根据绝对值小来进行冒泡排序
			for(int i = 0; i < list.length - 1; i++) {
				// 其他小孩身高
				int value = height - list[i];
				if(value < 0) {
					value = value * (-1);
				}
				for(int j = i+1; j < list.length; j++) {
					int value1 = height - list[j];
					if(value1 < 0) {
						value1 = value1 * (-1);
					}
					System.out.println("value"+ i +": " + value + ";v" + j + ":" + value1);
					if(value > value1) {
						System.out.println("交换前：list["+ i +"](" + list[i] + ")" + ";list[" + j +"](" + list[j] + ")");
						int tmp = list[i];
						list[i] = list[j];
						list[j] = tmp;
						// 如果是使用介质而非使用元素本身来判断元素位置交换，记得每次交换完之后更新介质的值
						value = height - list[i];
						if(value < 0) {
							value = value * (-1);
						}
						System.out.println("交换前：list["+ i +"](" + list[i] + ")" + ";list[" + j +"](" + list[j] + ")");
					}
				}
			}
		System.out.println("数组遍历2 : ");
		for(int i =0; i < list.length; i ++) {
			System.out.println(list[i] + " ");
		}
	}
}