0.0如果一个贴子提问已经有人回答,然后我再把自己写的代码打上去,会不会有技术分
下面是算法分享……
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- public class SortAll {
- public static void main(String[] args){
- int[] i = { 1, 5, 6, 12, 4, 9, 3, 23, 39, 403, 596, 87 };
- System.out.println("----冒泡排序的结果:");
- maoPao(i);
- System.out.println();
- System.out.println("----选择排序的结果:");
- xuanZe(i);
- System.out.println();
- System.out.println("----插入排序的结果:");
- chaRu(i);
- System.out.println();
- System.out.println("----希尔(Shell)排序的结果:");
- shell(i);
-
- }
-
- // 冒泡排序
- public static void maoPao(int[] x) {
- for (int i = 0; i < x.length; i++) {
- for (int j = i + 1; j < x.length; j++) {
- if (x[i] > x[j]) {
- int temp = x[i];
- x[i] = x[j];
- x[j] = temp;
- }
- }
- }
- for (int i : x) {
- System.out.print(i + " ");
- }
- }
- // 选择排序
- public static void xuanZe(int[] x) {
- for (int i = 0; i < x.length; i++) {
- int lowerIndex = i;
- // 找出最小的一个索引
- for (int j = i + 1; j < x.length; j++) {
- if (x[j] < x[lowerIndex]) {
- lowerIndex = j;
- }
- }
- // 交换
- int temp = x[i];
- x[i] = x[lowerIndex];
- x[lowerIndex] = temp;
- }
- for (int i : x) {
- System.out.print(i + " ");
- }
- }
-
- // 插入排序
- public static void chaRu(int[] x) {
- for (int i = 1; i < x.length; i++) {
- // i从一开始,因为第一个数已经是排好序的啦
- for (int j = i; j > 0; j--) {
- if (x[j] < x[j - 1]) {
- int temp = x[j];
- x[j] = x[j - 1];
- x[j - 1] = temp;
- }
- }
- }
- for (int i : x) {
- System.out.print(i + " ");
- }
- }
-
- // 希尔排序
- public static void shell(int[] x) {
- // 分组
- for (int increment = x.length / 2; increment > 0; increment /= 2) {
- // 每个组内排序
- for (int i = increment; i < x.length; i++) {
- int temp = x[i];
- int j = 0;
- for (j = i; j >= increment; j -= increment) {
- if (temp < x[j - increment]) {
- x[j] = x[j - increment];
- } else {
- break;
- }
- }
- x[j] = temp;
- }
- }
- for (int i : x) {
- System.out.print(i + " ");
- }
- }
-
-
- }
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