Problem

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Produk bit

Problem

Tulis program dengan fungsi rekursif untuk mengira hasil darab bit dalam nombor asli.

Input
Baris pertama mengandungi nombor asli N (  N<=109 ).

Cetakan
Keluarkan hasil darab bit.

Contoh

 

time 1000 ms
memory 256 Mb
Rules for program design and list of errors in automatic problem checking

Teacher commentary

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# Input Output
1 16 0
2 7 1