冒泡排序，选择排序，插入排序，希尔（Shell）排序
int[] i = { 1, 5, 6, 12, 4, 9, 3, 23, 39, 403, 596, 87 };
冒泡排序，选择排序，插入排序，希尔（Shell）排序
int[] i = { 1, 5, 6, 12, 4, 9, 3, 23, 39, 403, 596, 87 };
// 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 + " ");
}
}
}