任何人都知道为什么我的就地合并排序是“索引超出范围”。我在代码中找不到任何错误,对您有所帮助。
我本来的“ low”为0,但决定为每个“ low,mid,high”做+1以补偿索引空间。谁能找到任何东西?谢谢。
def merge_test(array, low, mid, high):
i,j,k = low,mid+1,low
leftarray = array[low:mid+1]
rightarray = array[mid+1:high+1]
temp= [0]*high
while i<=mid and j<=high:
if array[i]<array[j]:
temp[k] = array[i]
i+=1
else:
temp[k] = array[j]
j+=1
k+=1
if i>mid:
temp[k:high+1] = array[j:high+1]
else:
temp[k:high+1] = array[i:mid+1]
array[low:high+1] = temp[low:high+1]
def inplace(array,low,high):
if low<high:
mid = int((low+high)/2)
inplace(array,low,mid)
inplace(array,mid+1,high)
merge_test(array,low,mid,high)
array = [20,30,21,15,42,45,31,0,9]
inplace(array, 0, len(array)-1)
print(array)