P215. WAP which contains multiple main inform to preprocessor, place any one main in .i file

 

#include<stdio.h>

#define op 1

 

#if(op==1)

void main()

{

        printf("Task 1..\n");

}

 

#elif(op==2)

void main()

{

        printf("Task 2..\n");

}

 

#elif(op==3)

void main()

{

        printf("Task 3..\n");

}

 

#else

void main()

{

        printf("Task 4..\n");

}

#endif