Https://ide.codingblocks.com/s/207296

#1

this code is returning -1

#2

@kundankumarsports2 in the functions for diameter, the correct return statement is
return max(op1+1,max(op2,p3))
If this resolves your doubt mark it as resolved.

#3

@kundankumarsports2 also in the diameter function you are using assignment operator instead of comparision.
if(root==NULL) //correct
if this resolves your doubt mark it as resolved

#4

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