辗转相除法求最大公约数1

辗转相除法求最大公约数1

#include 

int main(int argc, char **argv)
{
        if (argc < 3) {
                printf("Usage: gcd_1 num1 num2\n");
                return -1;
        }
        int a = atoi(argv[1]);
        int b = atoi(argv[2]);

        while (b != 0) {
                int temp = a;
                a = b;
                b = temp % b;
        }

        printf("%d\n", a);

        return 0;
}