习题5-3 使用函数计算两点间的距离 (10 分)

题目链接：
习题5-3 使用函数计算两点间的距离 (10 分)

#include 
#include 

double dist( double x1, double y1, double x2, double y2 );

int main()
{    
    double x1, y1, x2, y2;

    scanf("%lf %lf %lf %lf", &x1, &y1, &x2, &y2);
    printf("dist = %.2fn", dist(x1, y1, x2, y2));

    return 0;
}


double dist( double x1, double y1, double x2, double y2 ){
	double s;
	s=sqrt(pow(x1-x2,2)+pow(y1-y2,2));
	return s;
}