C Program to solve using Euler Rule

/*
Euler Rule 
Compute:: f(0.1)=?
When f(x,y)=1+xy, y(0)=2,h=0.01
*/
#include<conio.h>
#include<stdio.h>

void main()
{
 float x0,y0,h,xf,fx,x;
 float f(float,float);
 printf("\nEnter x0 & y0");
 scanf("%f%f",&x0,&y0);
 printf("\nEnter x & h");
 scanf("%f%f",&x,&h);
 xf=x0;fx=y0;
 while(xf<=x)
 {
 fx=fx+h*f(xf,fx);
 xf=xf+h;
 }
 printf("\nResult %f",fx);
 getch();
}

float f(float x,float y)
{
 return 1+x*y;
}