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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