The function keeps the value of variable H to two decimal places and rounds the third digit

#include<stdio.h>
#include<stdlib.h>
double fun(double h);
int main()
{
    
	 float a;
	 printf("enter a:");
	 scanf("%f",&a);
	 printf("the original data is:");
	 printf("%f\n\n",a);
	 printf("the result:%f\n",fun(a));
	 
}
double fun(double h)
{
    
	 int temp;
	 temp=(int)(h*1000+5)/10;
	 return(double)temp/100;
	 
}