Below are some solved questions from TCS Anna university Placements.

 1) main()
 {
  float me = 1.1;
   double you = 1.1;
     if(me==you)
         printf("I love U");
       else
   printf("I hate U");
}

a) I love U
b) I hate U
c) Both a) & b)

Answer: I hate U

2) main()
{
   static int var = 5;
         printf("%d ",var--);
     if(var)
  main();
}

a) 12345
b) 54321
c) 15243

Answer:5 4 3 2 1

3) main()
{
   int c[ ]={2.8,3.4,4,6.7,5};
      int j,*p=c,*q=c;
        for(j=0;j<5;j++) {
           printf(" %d ",*c);
           ++q;
}
        for(j=0;j<5;j++)
{
   printf(" %d ",*p);
  ++p;
}
}

a) 2 2 2 2 2 4 2 3 5 5
b) 2 2 2 2 2 2 5 4 6 3
c) 2 2 2 2 2 2 3 4 6 5

Answer is 2 2 2 2 2 2 3 4 6 5

4) main()
{
    extern int i;
     i=20;
      printf("%d",i);
}

a) compiler error
b) Linker error
c) Runtime error

Answer is compiler error