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INTEC PAPER ON 15th NOVEMBER AT BANGALORE

Hi  Folks

Test duration : 90 mins
No. of Questions : 23
Completelly Technical (It was based on C )
1. Difference between static & non-static variables.
2. Define Pointers
3. Write your own String Copy function.
4. What is the purpose of Volatile in C.
5. What is the purpose of Static in C?
6. One question was like
static int x;
It will be acessed by-------- in a file 1.c {Hint: It is based on scope of variables}
7. What is the Output?
    main()
    {
       char *p1="name";
       char *p2;
        p2=(char*)malloc(20);
        memset(p2,0,20);  // Plz check it out {Appendix of YPK--C}
           while(*p2++ = *p1);
           printf("%s\n",p2);
}
 
8. Long function based on command line arguments, u have 2 find out the error...
Ans: I think some error in 2nd If condition.
9. What is ths Output of given snippet?
     void main()
     {
        int x=20, y=35;
        x= x++ + y++;
        y= y++ + x++;
      printf("%d%d", x,y);
   }
 
10. main()
      {
        char s1[] = "XYZ";
        char s2[] = "inc";
        printf("%s", s1);
     }
 
11. Simple strcat code was given.
Ans: XYZinc
12. #define TRUE 0
      ----------- Some code
 
 
      while(TRUE)
       {
         ---------- Some code
       }
 
    what is the Output?
 
13. main()
       {
         int x=10,y=15;
         x= x++;
         y= y++;
         printf("%d%d",x,y);
     }
 
 What is the output?
 
14. int a;
      if(a==0)printf("XYZ");
      printf("XYZ");
 
  What is the output?
 
15. int x;
      int modify(int x)
      {
        return(x+=10);
      }
     int changevalue(int x)
     {
        return(x+=1);
      }
    
     void main()
      {
         int x=10;
         x++;
         modify(x);
        x++;
        printf("%d",x);
        x++;
        changevalue(x);
        x++;
        modify(x);
        printf("%d",x);
    }
 
16. Difference between malloc and calloc and implement maoolc as calloc.
 
17. Implement realloc with full error checking code.
 
18. Implement a in-memory look up table of int type and write a function having time
      complexity of O(logn).
 
19. Program for converting binary>>>decimal  or similat to this.
 
20. void main()
      {
          int x= 5;
          printf("%d%d%d",x,x<<2,x>>2);
      }
 
21. #define swap(a,b) a=a+b; b=a-b; a=a-b;
      void main()
      {
        int x=5, y=10;
        swap(x,y);
        printf("%d%d", x, y);
        swap2(x,y);
        printf("%d%d", x, y);
      }
   
     swap2(int a, int b)
     {
       int temp;
       temp=a;
       a=b;
       b=temp;
     }
 
what is the Output?
 
22. void main()
      {
         char *ptr= "xyz";
         *ptr++;
          printf("%d\n", ptr);
          ptr++;
           printf("%d", ptr);
      }
 
23.  Explain the given declerations
           
         char *const ptr;
        
        char const *ptr;
   
         similar to this // Its pointer to constant and conastant pointer
 
 
Hint : Run the given codes, bcoz no options will be dere in the paper
         U have to directly write the answers.
         Time is ample but u should be accurate.

Here are some questions. of intec test

1. what is malloc and calloc function.explain difference between them?
2. what is difference betwn const int*p and int *const p something like that?
3. wap to dynamically allocate memory using malloc function?
4. wap to resize the allocated memory done with help of malloc and design the case for exceptional handling?
5. wap to reverse string without using second variable?
6. write a trim function to trim the white spaces at beginning and end of string?
7. wap to multiply 2 number without using mulitiplication operator?
8. some question were objective where we have to findthe output of a particular function..and there were question regarding operator overloading,friend function,constructor etc.