C Aptitude - P2

1.      main()

{

            extern int i;

            i=20;

printf("%d",i);

}

2.   main()

{

            int i=-1,j=-1,k=0,l=2,m;

            m=i++&&j++&&k++||l++;

            printf("%d %d %d %d %d",i,j,k,l,m);

}

3.     main()

{

            char *p;

            printf("%d %d ",sizeof(*p),sizeof(p));

}

4.   main()

{

            int i=3;

            switch(i)

             {

                default:printf("zero");

                case 1: printf("one");

                           break;

               case 2:printf("two");

                          break;

              case 3: printf("three");

                          break;

              } 

}

5.  main()

{

              printf("%x",-1<<4);

}

Find the answers and check your answers on tomorrow(23-07-2011)