求一元二次方程的根

#include <stdio.h>

#include <math.h> int main() { int a, b, c;

scanf("%d%d%d", &a, &b, &c);
int d = pow(b, 2) - 4 * a * c;//pow是开根号，要引用math头文件
if (d >= 0)
{
	int x1;
	int x2;
	int x;
	if (d == 0)
	{
		x = -b / 2*a;
		printf("x = %d", x);

	}
	else if (d > 0)
	{
		x1 = (-b + sqrt(d)) / (2 * a);
		x2 = (-b - sqrt(d)) / (2 * a);
		printf("x1 = %d x2 = %d", x1, x2);


	}

}
else
{
	printf("无根\n");
}
return 0;

}