The city of Midgard has faced extreme weather conditions in recent years. Causing huge floods everywhere. Lord In$,$ the ruler of Midgard, wanted to know at what height each area could hold water.

The city of Midgard had water walls on many levels.

with

a$.$ The data for the height of the retaining wall is in the form of array $[$ h$]$

b$.$ Each h$$ indicates the height of the water wall.