1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
MakingChange←{ ⎕IO←0 n←⍵ n=0: 1 t←1↑⍨n+1 _←{ c←⍵ {{t[⍵]+←t[⍵-c]}⍣(⍵≥c)⊢⍵}¨1+⍳n }¨1 5 10 25 50 ⊃⌽t } ⎕←MakingChange 9 ⎕←MakingChange 15 ⎕←MakingChange 100