Add Two Numbers Given as LinkedLists | Amazon | Microsoft | Facebook | Qualcomm

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#dsa #leetcode #placements

[ankitr]

that's the tip, don't let interviewer know that u have already solved the problem. 😂

[GeekyBaller]

I was asked this question in my interview with Amazon.
Great work, Raj bhaiya!

[avishekroy]

your way of teaching is very simple, and easy to understand

[mrinmoyaus]

Great placement series is hitting bro just watching everytime i open youtube.

[settyruthvik]

#code in python
# Definition for singly-linked list.
# class ListNode:
# def __init__(self, val=0, next=None):
# self.val = val
# self.next = next
class Solution:
def addTwoNumbers(self, A: Optional[ListNode], B: Optional[ListNode]) -> Optional[ListNode]:
l3=ListNode(0)
head=l3
carry=0
while A or B or carry:
if A:
carry += A.val
A=A.next
if B:
carry += B.val
B=B.next
l3.val=carry%10
carry=carry//10
if A or B or carry:
l3.next=ListNode(0)
l3=l3.next
return head

[abhay]

I wanted to send you a heartfelt thank you for your tireless dedication to teaching DSA for free. Your selflessness and passion for helping students with their job interview preparation have made a significant impact on my life and countless others. I am incredibly grateful for the knowledge and confidence you have imparted to us. Thank you for everything you do!❣✨✨

[prabaljain]

i was solving this question on leetcode and the logic hit me in just 2mins but i wasn't able to code it

[DeepakGupta-zzvf]

we can also do like while(l1!=null || l2!=null) and after loop we can check if carry>0 then make a node else dont make

[tanishq]

I solved this without any extra space, making the additions in the node itself, was a bit complicated but yet it worked !

[avadheshsingh]

You are amazing best programming teacher on youtube keep it up brother

[reallydarkmatter]

You are really amazing at explaining every concept clearly

[NagaVijayKumar]

Thank you bro..
For uploading multiple videos in a single day..

[Metalrave]

I was able to do this in O(1) space as well with some optimisation (adding the sum values in the given listnodes only). Wouldn't that be a better answer to give to an interviewer?

[hrishitsarkar]

Striver You are GREAT Love from West Bengal <3

[hemanthvarmas]

Nicely put explanation (as always) for "how to add two numbers given as Linked Lists". Thanks bro.

[dhruvrajput]

Finally a question i figured out myself😂

[gamingwithhemend]

Love your simple and clean explanation 💯💯📸

[techdemy]

It was a really awesome explanation if you don't mind can you make a video on " k Queues in a single array " and " k Stack in a single array " when you START WITH STACK and QUEUE because I am not able to understand these two questions.

[SudhanshuKumar-lpnr]

Why do we need the dummy node in the starting why can't directly start from first sum value?

[jatinkumar]

Nice and clear explanation. One question... Should we consider the space used by output list when calculating space complexity?