Code dumped please help me out

#1
#2

move fast while (j<k) also increment j
then move till fast->next is not null


updated code.

#3

again there is time limit exceeded

#4

Yes this is because your LL build function has O(N^2) complexity, do it in linear time

#5

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#6

@Varun_a19
The doubt was reopened. Is your doubt resolved?

#7

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