python常用算法

Quick Sort 快排

python常用算法_第1张图片

def QuickSort(myList):
    if len(myList) > 1:
        pviot = myList[0]
        low = QuickSort([x for x in myList if x < pviot])
        mid = [x for x in myList if x== pviot]
        high = QuickSort([x for x in myList if x > pviot])
        return(low+mid+high)
    else:
        return(myList)

python冒泡排序 Bubble Sort

def BubbleSort(List):
    flag=True
    while flag:
        flag=False
        x=0
        while x <= len(List)-2:
            if List[x] > List[x+1]:
                temp = List[x]
                List[x]=List[x+1]
                List[x+1]=temp
                flag=True
            x=x+1
    return(List)


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