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Update 0238-product-of-array-except-self.py

Eliminating unneeded prefix variable

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Lines changed: 2 additions & 4 deletions

Original file line number	Diff line number	Diff line change
`@@ -2,10 +2,8 @@ class Solution:`
`2`	`2`	`defproductExceptSelf(self,nums:List[int])->List[int]:`
`3`	`3`	`res= [1]* (len(nums))`
`4`	`4`
`5`		`-prefix=1`
`6`		`-foriinrange(len(nums)):`
`7`		`-res[i]=prefix`
`8`		`-prefix*=nums[i]`
	`5`	`+foriinrange(1,len(nums)):`
	`6`	`+res[i]=res[i-1]*nums[i-1]`
`9`	`7`	`postfix=1`
`10`	`8`	`foriinrange(len(nums)-1,-1,-1):`
`11`	`9`	`res[i]*=postfix`

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