pingfang

/* Note:Your choice is C IDE */
#include "stdio.h"
#include "math.h"
float po(int a,int b);
main()
{int a,b;
	scanf("%d %d",&a,&b);
	po(a,b);
	



}
float po(int a,int b)
{   float c;
	c=sqrt(a*a+b*b);
	printf("%f\n",c);
	return c;}