golang数据结构之快速排序
具体过程:黑色标记代表左指针,红色标记代表右指针,蓝色标记代表中间值。(依次从左往向下)

//QuickSort 快速排序
func QuickSort(left int, right int, arr *[7]int) {
l := left
r := right
pivot := arr[(left+right)/2]
tmp := 0
for l < r {
for arr[l] < pivot {
l++
}
for arr[r] > pivot {
r--
}
if l >= r {
break
}
tmp = arr[l]
arr[l] = arr[r]
arr[r] = tmp
if arr[l] == pivot {
r--
}
if arr[r] == pivot {
l++
}
}
if l == r {
l++
r--
}
if left < r {
QuickSort(left, r, arr)
}
if right > l {
QuickSort(l, right, arr)
}
}
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