DDD sample

cargo

DDD sample with OO

counting shapes

DDD sample with FP

The first game:

How many triangles can you see? <Br/>24, details as follows:<Br/>[abc abd abe acd ace ade aef aeg aeh afg afh agh ahi ahj ahk aij aik ajk beh ceg def ehk fhj ghi]

The second game:

How many quadrangles can you see?<Br/>18, details as follows:<Br/>[aceh adeg adeh afhk aghj aghk bcgh bcih bdfh bdjh bekh cdfg cdji ceki dekj efjk egik fgij]