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//File: insertion_sort.go
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//Created Time: 2022-12-12
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//Author: msk397 (machangxinq@gmail.com)
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package insertion_sort
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func insertionSort(nums []int) {
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// 外循环:待排序元素数量为 n-1, n-2, ..., 1
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for i := 1; i < len(nums); i++ {
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base := nums[i]
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j := i - 1
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// 内循环:将 base 插入到左边的正确位置
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for j >= 0 && nums[j] > base {
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nums[j+1] = nums[j] // 1. 将 nums[j] 向右移动一位
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j--
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}
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nums[j+1] = base // 2. 将 base 赋值到正确位置
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}
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}
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//File: insertion_sort_test.go
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//Created Time: 2022-12-12
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//Author: msk397 (machangxinq@gmail.com)
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package insertion_sort
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import (
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"fmt"
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"testing"
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)
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func TestInsertionSort(t *testing.T) {
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nums := []int{4, 1, 3, 1, 5, 2}
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insertionSort(nums)
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fmt.Println("插入排序完成后 nums = ", nums)
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}
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