[理工] 資結請教
1. For the following recursive procedure RP1, (a) find RP1 (2468) = ?
(b)how many times for executing the instruction print (key mod 10) in (a) ?
Procedure RP1 (key: integer)
begin
if key < 10
then print (key);
else
begin
print (key mod 10);
RP1 (key div 10)
end
end
2. Considering the following program, write its recursive program.
long combi (int n, int r)
{ int i;
long p = 1;
for ( i = 1; i≦r; i++)
p = p*(n – i + 1)/i;
return (p) ;
}
3. f(x) = 2x4 + 3x3 + 5x2 + 8x + 9, what is the least number of multiplications
required for evaluating f(x) ?
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