Klawisze fortepianu mają 3 znaki szerokości i 7 znaków wysokości. Gdyby jednak każdy klawisz miał 3 znaki szerokości, nie byłoby wystarczającej ilości miejsca dla czarnych klawiszy. Dlatego niektóre białe klucze mają wycięte części. Istnieją 3 rodzaje białych klawiszy.
Klucze z brakującą prawą połówką (R):
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Klucze bez lewej połowy (L):
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|___|
I brakuje klawiszy z lewą i prawą połówką (M):
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Na prawdziwej klawiaturze ich wzór wygląda następująco:
RMLRMML, RMLRMML, RMLRMML...
i powtarza się dla 88 kluczy. Teraz nie możesz tego zobaczyć, gdy klawisze są pokazywane indywidualnie, ale kiedy je wepchniesz razem, zobaczysz czarne klawisze.
_________________________________________________________
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|___|___|___|___|___|___|___|___|___|___|___|___|___|___|
Twoje zadanie
Biorąc pod uwagę dodatnią liczbę całkowitą N , wydrukuj tę sztukę ASCII fortepianu z N białymi klawiszami. Powinieneś być w stanie obsłużyć dowolny N od 1 do 52 włącznie (ponieważ prawdziwe 88-klawiszowe fortepiany mają 52 białe klawisze). Oto wynik testu od 1 do 8, a następnie wzorzec rośnie w podobny sposób.
1
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2
________
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|___|___|
3
_____________
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|___|___|___|
4
________________
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|___|___|___|___|
5
____________________
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|___|___|___|___|___|
6
________________________
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|___|___|___|___|___|___|
7
_____________________________
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|___|___|___|___|___|___|___|
8
________________________________
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|___|___|___|___|___|___|___|___|
I na koniec, oto pełne 52 kluczowe dane wyjściowe:
_________________________________________________________________________________________________________________________________________________________________________________________________________________
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|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|
Standardowe luki są zakazane, a najkrótsza odpowiedź w bajtach wygrywa!