if ( i == n )
return (xo==0);
How can this be ever true since all v,u <=n-1
The problem solution video is very confusion it would be great if you explain the basic idea again in detail (or in brief)
Xor circuit codechef dp
The logic behind this is explained in the tutorial video, Please go through it twice. I understand the explanation is bit difficult but i highly recommend you to watch editorial twice again.
I am forwarding your request/feedback to the mentors.
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