Update counting_sort.go and radix_sort.go

This commit is contained in:
krahets 2023-03-20 21:40:50 +08:00
parent b9e97d3823
commit a78365401e
3 changed files with 8 additions and 7 deletions

View file

@ -8,7 +8,7 @@ type CountingSort struct{}
/* 计数排序 */
// 简单实现,无法用于排序对象
func (c *CountingSort) countingSortNaive(nums []int) {
func countingSortNaive(nums []int) {
// 1. 统计数组最大元素 m
m := 0
for num := range nums {
@ -31,7 +31,9 @@ func (c *CountingSort) countingSortNaive(nums []int) {
}
}
func (c *CountingSort) countingSort(nums []int) {
/* 计数排序 */
// 完整实现,可排序对象,并且是稳定排序
func countingSort(nums []int) {
// 1. 统计数组最大元素 m
m := 0
for num := range nums {

View file

@ -10,11 +10,10 @@ import (
)
func TestCountingSort(t *testing.T) {
c := &CountingSort{}
nums := []int{1, 0, 1, 2, 0, 4, 0, 2, 2, 4}
c.countingSortNaive(nums)
countingSortNaive(nums)
fmt.Println("计数排序(无法排序对象)完成后 nums = ", nums)
c.countingSort(nums)
countingSort(nums)
fmt.Println("计数排序完成后 nums = ", nums)
}

View file

@ -13,7 +13,7 @@ func digit(num, exp int) int {
}
/* 计数排序(根据 nums 第 k 位排序) */
func countingSort(nums []int, exp int) {
func countingSortDigit(nums []int, exp int) {
// 十进制的各位数字范围为 0~9 ,因此需要长度为 10 的桶
bucket := make([]int, 10)
n := len(nums)
@ -56,6 +56,6 @@ func radixSort(nums []int) {
// k = 2 -> exp = 10
// k = 3 -> exp = 100
// 即 exp = 10^(k-1)
countingSort(nums, exp)
countingSortDigit(nums, exp)
}
}