Please check my java code and tell me why all test cases are not working

#1
#2

Hello @Bhuwan-Agrawal-2362769150606526,

You can refer to this video by Prateek Bhaiya.
He has explained the logic for this problem at 1:55:12.

If you still don’t understand your mistake.
Let me know, I will help you in correcting your code.

#3

hello Sir I have seen the video but stil donot understand my mistake

#4

I have seen the video but still cant understand whaat’s wrong with my code;

#5

Hello @Bhuwan-Agrawal-2362769150606526,

Mistake:
You have computed the ans from the leftmost index of the string.
Solution:
You have to iterate the loop from the rightmost index.
Corrected Code:

Hope, this would help.
Give a like if you are satisfied.

1 Like
#6

Sir now the code is working fine but according to the video where ever we encounter 7 the no. of digits less than that would be 2 raised to power index where index is starting from 0???

#7

Hey @Bhuwan-Agrawal-2362769150606526,

Please, watch the video again.
You might have misunderstood it.

The reason to iterate from right most position:
rightmost digit refers to the ones position.
and so on while moving towards to left.

You can refer to this video for better understanding.

1 Like
#8

now I understand thanks