WAP to use of sizeof

/*use of sizeof*/

#include<stdio.h>
#include<conio.h>
main()
{
clrscr();
char a;
int b;
float c;
double d;
a=sizeof(char);
b=sizeof(int);
c=sizeof(float);
d=sizeof(double);

printf("\nsize of char=%d\n",a);
printf("\nsize of integer=%d\n",b);
printf("\nsizeof float=%f\n",c);
printf("\nsize of d float=%f\n",d);
getch();
}