35)void main() { extern int i; i=20; printf("%d",i); } a)20 b)0 c)compiler error   d)linker error   36)float me=0.7;    double you=0.7;    if(me==you)       printf("I luv u");    else printf("I hate u");   37)Can constructors have return types a)Cant have b)Compiler can internally return values from constructors c)Can jave   38)If pstr is a pointer.Tell which is better. 1)if((length(pstr)>=65) && (pstr!=NULL)) 2)if((pstr!=NULL)&&(length(pstr)>=65)) a)Makes no diff b)Only 1 is correct c)Only 2 is correct d)Both are wrong   39)void main()         {         static int var=5;         printf("%d",var--);         if(var)                 main();         }   40)void main()         {         int const *p=5;         printf("%d",++(*P);         }   41)Mr Bean asked to design a student class(in C) to store rollno,name,marks.If the task was given to you ,U would implement using a)Multridimensional array b)structurs c)LL d)stack   42)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;      } }   43)main() { int i=1; switch(i) { default:printf("Default"); break; case 1: printf("one"); case 2: printf("Two"); case 3: printf("Three"); } } a)one   b)default  c)one two three  d)one default   44)Containship is similar to a)Generalization  b)inheritance  c)Delegation  d)Genercity   45)Ternary Operator is 1)?:  2)>=  3)! 4)*