Compare for loop and while loop in two sum problem, I wonder why in case of while loop needs to be len(s)-1 for the code to work as the arrow pointed out?? Do we not need to get to the last element of len(s) ??? def two_sum(s, target):for i in range(len(s)):for j in range(i+1, len(s)):if s[i]+s[j]==target:print(s[i], s[j])return Truereturn False ____________________________________________________ def to_sum(s, target): i=0 j=len(s)-1 <------------------why ??? while i <=j: if s[i]+s[j] ==target: print(s[i], s[j]) print(s.index(s[i]), s.index(s[j])) return True elif s[i]+s[j] <target: i+=1 else: j-=1return Falseprint(to_sum(s, target))

Hi Thadaton, thanks for reaching out! Could you please provide a link to the lecture this question is related to? Thanks in advance. Best, The 365 Team

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Thadathon Chulikpongse

Last answered:

21 Oct 2020

Posted on:

06 Jun 2020

two_sum compare for loop & while loop

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Elitsa Kaloyanova

Instructor

Posted on:

21 Oct 2020

two_sum compare for loop & while loop

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