What is problem in following code?

#1


it is giving correct answer for sample test case.

#2

Hey @chhabrapiyush480
Code is fine
One small error
Line 25 should be
else if(tree[2index][i]==tree[2index+1][j])
you wrote
else if(tree[2index][i]==tree[2index][j])

If your doubt is resolved please mark it as closed.