The Euclidean algorithm is used to find the greatest common divisor (gcd) of two positive integers
(继续)a and b.
input (a)
input (b)
while b>0
begin
r:=a mod b
a:=b
b:=r
end
gcd:=a
output(gcd)
When the algorithm is used to find the greatest common divisor of a =273 and b=110, which of the following is the sequence of computed values for r?
(A)2,26,1,0
(B)2,53,1,0
(C)53,2,1,0
(D)53,4,1,0
(E) 53,5,1,0
选D,怎么做的?
程序里的":="是什么意思?