Stack and Queue :- Histogram

#1

How the area of 0th bar is coming as 80?

#2

This code given below is giving right answers in my ide but not in online ide https://ide.codingblocks.com/s/79632

#3

What is going wrong with this code?

#4

Hi Avin,
Use long instead of int also while taking input use sc.nextInt() in place of sc.nextLine() as input is not given as string.