fixed dependencies
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71
vendor/github.com/nuknal/goNum/ShellSort.go
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vendored
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71
vendor/github.com/nuknal/goNum/ShellSort.go
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// ShellSort
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/*
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------------------------------------------------------
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作者 : Black Ghost
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日期 : 2019-03-05
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版本 : 0.0.0
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------------------------------------------------------
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希尔(Shell)排序法
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理论:
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时间复杂度: O(n^1.3)
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最好情况 : O(n)
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最坏情况 : O(n^2)
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空间复杂度: O(1)
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稳定性 : 不稳定
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------------------------------------------------------
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输入 :
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in 输入矩阵, 1xn
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输出 :
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sol 排序结果
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err 解出标志:false-未解出或达到步数上限;
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true-全部解出
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------------------------------------------------------
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*/
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package goNum
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// ShellSort 希尔(Shell)排序法
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func ShellSort(in Matrix) (Matrix, bool) {
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/*
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希尔(Shell)排序法
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输入 :
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in 输入矩阵, 1xn
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输出 :
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sol 排序结果
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err 解出标志:false-未解出或达到步数上限;
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true-全部解出
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*/
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//判断初值维数
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if in.Rows != 1 {
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panic("Error in goNum.ShellSort: Input Matrix error")
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}
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if in.Columns < 1 {
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panic("Error in goNum.ShellSort: Empty input Matrix")
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} else if in.Columns == 1 {
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return in, true
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}
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n := in.Columns
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sol := ZeroMatrix(1, n)
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subn := n / 2
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var err bool = false
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//初始化sol
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for i := 0; i < n; i++ {
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sol.Data[i] = in.Data[i]
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}
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//排序开始
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for ; subn > 0; subn = subn / 2 { //循环到增量减小为1
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for i := subn; i < n; i++ {
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temp := sol.Data[i]
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j := i - subn
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for ; j >= 0 && sol.Data[j] > temp; j -= subn {
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sol.Data[j+subn] = sol.Data[j]
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}
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sol.Data[j+subn] = temp
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}
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}
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err = true
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return sol, err
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}
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