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xiaomeng79
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go-algorithm
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master
Breadcrumbs
go-algorithm
/
algorithms
/
sort
/
selection
/
selection.go
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25 lines (23 loc) · 766 Bytes
master
Breadcrumbs
go-algorithm
/
algorithms
/
sort
/
selection
/
selection.go
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25 lines (23 loc) · 766 Bytes
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//选择排序
package
selection
//原理:每一次从待排序的数据元素中选出最小(或最大)的一个元素,存放在序列的起始位置
//稳定: 不稳定
//适用: 数据规模越小越好
//算法步骤:
//1. 首先在未排序序列中找到最小(大)元素,存放到排序序列的起始位置
//2. 再从剩余未排序元素中继续寻找最小(大)元素,然后放到已排序序列的末尾
//3. 重复第二步,直到所有元素均排序完毕
func
SelectionSort
(
arr
[]
int
) []
int
{
length
:=
len
(
arr
)
for
i
:=
0
;
i
<
length
-
1
;
i
++
{
minIndex
:=
i
for
j
:=
i
+
1
;
j
<
length
;
j
++
{
if
arr
[
j
]
<
arr
[
minIndex
] {
minIndex
=
j
}
}
//
arr
[
minIndex
],
arr
[
i
]
=
arr
[
i
],
arr
[
minIndex
]
}
return
arr
}
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