输出两个数的最大公约数

# include <stdio.h>
# include <stdlib.h>
int main()
{
	int a, b, c,i;
	c = 1;
	scanf_s("%d %d",&a,&b);
	if (a > b)
	{
		c = a;
		a = b;
		b = c;
	}
	for (i = a;i > 0;i--)
	{
		if (a % i == 0 && b % i == 0)
		{
			printf("%d\n",i);
			break;
		}
	}
	system("pause");
	return 0;
}