C Program :
Given four numbers. Write a prog. to find smallest of them. Use macro.

C Programming -->
 
/* PROG. TO FIND MIN. OF FOUR VALUES USING NESTED MACROS */
#include<stdio.h>
#include<conio.h>
#define MIN(a,b) (((a)<b))?(a):(b))
main()
{
int w,x,y,z,small;
clrscr();
printf("enter four values");
scanf("%d%d%d%d" ,&w,&x,&y,&z);
/* using macro MIN to find minimum */
small= MIN(w, MIN(x, MIN(y,z)));
printf("\n minimum of%d %d %d %d is==> %d",w,x,y,z,small);
getch();
}