vreau si eu explicatie la asta va rog mersi frumos

f(3) = f(2) 3 f(2) 2 f(2) 1
f(2) = f(1) 2 f(1) 1
f(1) = f(0) 1
f(0) = nu se executa nimic
Astfel :
f(1) = 1
f(2) = 1 2 1 1
f(3) = 1 2 1 1 3 1 2 1 1 2 1 2 1 1 1
Raspuns : b