第21224题
使用辗转相除法求解最大公因数的C++函数横线处应填入什么代码?
int gcd(int a, int b) {
 while (b != 0) {
  ______________________
 }
 return a;
}
A
int temp = b; b = a / b; a = temp;
B
int temp = a; a = b / a; b = temp;
C
int temp = b; b = a % b; a = temp;
D
b = a % b; a = b;
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答案解析