Take a look at this program

[abyssphobia]

Well a friend sent me this code and ask me if I can figure out what is wrong, but the proble is I donno C, I barely understood the instructions, its totally different to C++, well if someone knows Ill be glad.

#include<stdio.h> 
#include<conio.h> 
#include<string.h> 

void main() 
{ 
	float tmp,c,k,f;
	int grd;
	printf("\n\r How grade you want?\r 1.-Celcius \n\r 2.-Farenheit \n\r 3.-Kelvin");
	scanf("\n\r %i",&grd);
	scanf("\n\r %f",&tmp);
	if (grd==1)
	{
		f=(tmp*1.8)+32;
		k= tmp+273;
		printf("\n\r Farenheit%f Kelvin%f",&f,&k);
	}
	if (grd==2)
	{
		c= (tmp-32)/1.8;
		k= c+273;
	}
	if (grd==3)
	{
		c= tmp-273;
		f= (c*1.8)+32;

	}
	

	}