Swap Nodes in Pairs | leetcode 24 | Company tag : Amazon, Microsoft, Facebook | Python

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[akanimohekwere]

Thank you. Was stuck on this one for quite a bit.

[AshishKumar-xgdm]

Really the best ever.. swapping of nodes video..

[john_rambo_]

Swap Nodes in Pairs - effective pointer manipulation explanation.

[quirkyquester]

best explanation i've found on youtube!

[iamnoob]

Brilliant Explanation of logic.Please keep making such amazing content like this, Thank you.

[UECDishaKhattri]

great way of explaining logic. loved it!

[sriharshasolasa]

Thanks for very clear explanation :) I like the way you explained with visual representation

[vandit_quantum]

wasn't d1.next = None ?
if so why should we return it ?

[jyotirmoydey]

subscribed! great explanation. All the best, keep creating more such videos :)

[chintamalli]

explanation is awesome, Is there any way we can solve this question without d variable

[fetkamausam]

can u explain how can u know that u shuld take dummy

[jugh]

Can someone tell me why this is wrong?


def swapPairs(self, head: ListNode) -> ListNode:
x=ListNode(0)
y=x
while head and head.next:
y.next=head.next
(y.next).next=head
y=head
head=head.next.next
return x.next

[SomnathDas-fgqc]

sir your voice is not audible properly