Rain water harvesting

#1

failing in 2 test cases out of 10…showing run error

what is wrong in this

#2


look at this code once, it is simple and passes.


refer to this small video for the amazing explanation
#3

@seemantanishth
why my code was failing ???

it is also correct only
i m asking error in that

#4


this worked out, unnecessary macros were making the program misbehave