iNautics Placement Paper - C Programming Question And Answers

iNautics Previous Years Solved Sample Placement Papers

1. #define AND &&
   #define OR ||
   #define LE <=
   #define GE >=
   main( )
   {
   char ch = 'D';
   if((ch GE 65 AND ch LE 90) OR (ch GE 97 AND ch LE 122))
   printf("Alphabet");
   else
   printf("Not an alphabet");
   }
   

   (a) No Alphabet

   (b) Alphabet (Ans)

   (c) Error

   (d) None

2. main( )
   {
   int n[25];
   n[0] = 100;
   n[24] = 200;
   printf("%d %d", *n, *(n + 24) + *(n + 0));
   }
   

   (a) 200 100

   (b) 100 300 (Ans)

   (c) 100 200

   (d) None

3. main( )
   {
   int arr[] = {0, 1, 2, 3, 4};
   int i, *ptr;
   for(ptr = arr + 4; ptr = arr; ptr--)
   printf("%d", *ptr);
   }
   

   (a) 0 1 2 3 4

   (b) 4 3 2 1 0

   (c) 1 2 3 4 0

   (d) None (Ans)

4. main( )
   {
   struct employee
   {
   char name[25];
   int age;
   float bs;
   };
   struct employee e;
   e.name = "Hacker";
   e.age = 25;
   printf("%s%d", e.name, e.age);
   }
   

   (a) Hacker, 25

   (b) Error message (Ans)

   (c) 25 Hacker

   (d) None

5. #define NULL 0
   main( )
   {
   struct node
   {
   struct node *previous;
   int data;
   struct node *next;
   };
   struct node *p, *q;
   p = malloc(sizeof(struct node));
   q = malloc(sizeof(struct node));
   p->data = 75;
   q->data = 90;
   p->previous = NULL;
   p->next = q;
   q->previous = p;
   q->next = NULL;
   while(p!=NULL)
   {
   printf("%d\n", p->data);
   p = p->next;
   }
   }
   

   (a) 90

   (b) 75 90 (Ans)

   (c) 90

   (d) None

6. main( )
   {
   int i = 3;
   i = i++;
   printf("%d", i);
   }
   

   (a) 3 (Ans)

   (b) 4

   (c) Undefined

   (d) Error

7. What error would the following function give on compilation?
   f (int a, int b)
   {
   int a;
   a = 20;
   return a;
   }
   

   (a) Redeclaration error (Ans)

   (b) Logical error

   (c) Runtime error

   (d) None

8. #define sqr(x) (x * x)
   main( )
   {
   int a, b = 3;
   a = sqr(b + 2);
   printf("%d", a);
   }
   

   (a) 25 (Ans)

   (b) 11

   (c) Error

   (d) Garbage value

9. #define str(x) #x
   #define Xstr(x) str(x)
   #define oper multiply
   main( )
   {
   char *opername = Xstr(oper);
   printf("%s", opername);
   }
   

   (a) oper

   (b) multiply (Ans)

   (c) Error

   (d) None

10. main( )
    {
    printf("%c", "abcdefgh"[4]);
    }
    

    (a) a

    (b) e (Ans)

    (c) Error

    (d) None