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Home » Placement Papers » LG Placement Papers  »LG Placement Paper 1

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LG Placement Paper 1


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Instructions: 
1. Please ignore any case-sensitive errors and un-included libraries. 
2. You may use the back of this question paper for any rough work. 

  1. main() 
       {  
        int i; 
        printf("%d", &i)+1; 
        scanf("%d", i)-1; 
      } 
      
    a. Runtime error. 
    b. Runtime error. Access violation. 
    c. Compile error. Illegal syntax 
    d. None of the above 
      

  2. main(int argc, char *argv[]) 
      { 
    (main && argc) ? main(argc-1, NULL) : return 0; 
      } 
      
    a. Runtime error. 
    b. Compile error. Illegal syntax 
    c. Gets into Infinite loop 
    d. None of the above 

  3. main() 

      int i; 
      float *pf; 
      pf = (float *)&i; 
      *pf = 100.00; 
      printf("%d", i); 

      
    a. Runtime error. 
    b. 100 
    c. Some Integer not 100 
    d. None of the above 

  4. main() 
      { 
       int i = 0xff; 
       printf("%d", i<<2); 
      } 
      
    a. 4 
    b. 512 
    c. 1020 
    d. 1024 

  5. #define SQR(x) x * x 
    main()
    {
      printf("%d", 225/SQR(15));  
    }  
      
    a. 1 
    b. 225 
    c. 15 
    d. none of the above 

  6. union u 

     struct st 

      int i : 4; 
      int j : 4; 
      int k : 4; 
      int l; 
     }st; 
      int i; 
     }u; 
      
    main() 
     { 
      u.i = 100; 
      printf("%d, %d, %d",u.i, u.st.i, u.st.l); 

      
    a. 4, 4, 0 
    b. 0, 0, 0 
    c. 100, 4, 0 
    d. 40, 4, 0 

  7. union u 
      { 
      union u 
       {  
       int i; 
       int j; 
     }a[10];  
      int b[10]; 
     }u; 
      
    main() 
      { 
       printf("%d", sizeof(u)); 
       printf("%d", sizeof(u.a)); 
       printf("%d", sizeof(u.a[0].i)); 
      } 
    a. 4, 4, 0 
    b. 0, 0, 0 
    c. 100, 4, 0 
    d. 40, 4, 0 

  8. main() 
       { 
       int (*functable[2])(char *format, ...) ={printf, scanf}; 
       int i = 100; 
      
       (*functable[0])("%d", i); 
       (*functable[1])("%d", i); 
       (*functable[1])("%d", i); 
       (*functable[0])("%d", &i); 

      
       a. 100, Runtime error. 
       b. 100, Random number, Random number, Random number. 
       c. Compile error 
       d. 100, Random number 

  9. main()
    {
        int i, j, *p;  
        i = 25;
        j = 100;
        p = &i; /* Address of i is assigned to pointer p */  
        printf("%f", i/(*p)); /* i is divided by pointer p */ 

      
    a. Runtime error. 
    b. 1.00000 
    c. Compile error 
    d. 0.00000 

  10. main() 
      { 
       int i, j; 
       scanf("%d %d"+scanf("%d %d", &i, &j)); 
       printf("%d %d", i, j); 
     } 
      
    a. Runtime error. 
    b. 0, 0 
    c. Compile error 
    d. the first two values entered by the user 

  11. main() 
      { 
       char *p = "hello world"; 
       p[0] = 'H'; 
       printf("%s", p); 
     } 
      
    a. Runtime error. 
    b. “Hello world” c. Compile error 
    d. “hello world”   

  12. main() 
      { 
     char * strA; 
     char * strB = “I am OK”; memcpy( strA, strB, 6); 

      
    a. Runtime error. 
    b. “I am OK” c. Compile error 
    d. “I am O”   

  13. How will you print % character? 
    a. printf(“\%”) b. printf(“\\%”) c. printf(“%%”) d. printf(“\%%”)   

  14. const int perplexed = 2; 
     #define perplexed 3   
    main() 
     { 
      #ifdef perplexed 
      #undef perplexed 
      #define perplexed 4 
      #endif 
       printf(“%d”,perplexed); } 
      
    a. 0 
    b. 2 
    c. 4 
    d. none of the above 

  15. struct Foo 
      { 
      char *pName; 
     }; 
      
    main() 
      { 
      struct Foo *obj = malloc(sizeof(struct Foo));  
      strcpy(obj->pName,"Your Name"); 
      printf("%s", obj->pName); 

      
    a. “Your Name” b. compile error 
    c. “Name” d. Runtime error 

  16. struct Foo 
      { 
          char *pName; 
         char *pAddress; 
      }; 
    main() 

       struct Foo *obj = malloc(sizeof(struct Foo)); 
       obj->pName = malloc(100); 
       obj->pAddress = malloc(100);
       strcpy(obj->pName,"Your Name"); 
       strcpy(obj->pAddress, "Your Address"); 
       free(obj); 
       printf("%s", obj->pName); 
      printf("%s", obj->pAddress); 

      
    a. “Your Name”, “Your Address” b. “Your Address”, “Your Address” c. “Your Name” “Your Name” d. None of the above 

  17. main() 

     char *a = "Hello "; 
     char *b = "World"; 
     printf("%s", stract(a,b)); 

      
    a. “Hello” b. “Hello World” c. “HelloWorld” d. None of the above 

  18. main() 

      char *a = "Hello "; 
      char *b = "World"; 
      printf("%s", strcpy(a,b)); 

      
    a. “Hello” b. “Hello World” c. “HelloWorld” d. None of the above 

  19. void func1(int (*a)[10]) 

    printf("Ok it works"); 

      
    void func2(int a[][10]) 

      printf("Will this work?"); 

      
    main() 

      int a[10][10]; 
      func1(a); 
      func2(a); 

      
    a. “Ok it works” b. “Will this work?” c. “Ok it works Will this work?” d. None of the above 

  20. main() 

      printf("%d, %d", sizeof('c'), sizeof(100)); 

      
    a. 2, 2 
    b. 2, 100 
    c. 4, 100 
    d. 4, 4 

  21. main() 

      int i = 100; 
      printf("%d", sizeof(sizeof(i))); 

      
    a. 2 
    b. 100 
    c. 4 
    d. none of the above 

  22. main() 

      int c = 5; 
      printf("%d", main|c); 

      
    a. 1 
    b. 5 
    c. 0 
    d. none of the above 

  23. main() 
      { 
       char c; 
       int i = 456; 
       c = i; 
       printf("%d", c); 
     } 
      
    a. 456 
    b. -456 
    c. random number 
    d. none of the above 

  24. oid main () 
      { 
      int x = 10; 
      printf ("x = %d, y = %d", x,--x++); 
     } 
      
    a. 10, 10 
    b. 10, 9 
    c. 10, 11 
    d. none of the above 

  25. main() 
      { 
       int i =10, j = 20; 
       printf("%d, %d\n", j-- , --i); 
       printf("%d, %d\n", j++ , ++i); 
      } 
      
    a. 20, 10, 20, 10 
    b. 20, 9, 20, 10 
    c. 20, 9, 19, 10 
    d. 19, 9, 20, 10 

  26. main() 
      { 
      int x=5; 
      for(;x==0;x--) { 
      printf(“x=%d\n”, x--); } 
     } 
    a. 4, 3, 2, 1, 0 
    b. 1, 2, 3, 4, 5 
    c. 0, 1, 2, 3, 4 
    d. none of the above 

  27. main() 
      { 
      int x=5; 
      for(;x!=0;x--) { 
      printf(“x=%d\n”, x--); } 
      } 
    a. 5, 4, 3, 2,1 
    b. 4, 3, 2, 1, 0 
    c. 5, 3, 1 
    d. none of the above 

  28. main() 
      { 
       int x=5; 
         { 
         printf(“x=%d ”, x--); } 
        } 
    a. 5, 3, 1 
    b. 5, 2, 1, 
    c. 5, 3, 1, -1, 3 
    d. –3, -1, 1, 3, 5  

  29. main() 

      unsigned int bit=256; 
      printf(“%d”, bit); } 
       { 
      unsigned int bit=512; 
      printf(“%d”, bit); } 

      
    a. 256, 256 
    b. 512, 512 
    c. 256, 512 
    d. Compile error 

  30. main() 
       { 
       int i; 
       for(i=0;i<5;i++) 
        { 
        printf("%d\n", 1L << i); 
       } 
     } 
    a. 5, 4, 3, 2, 1 
    b. 0, 1, 2, 3, 4 
    c. 0, 1, 2, 4, 8 
    d. 1, 2, 4, 8, 16 

  31. main() 

    signed int bit=512, i=5; 
      
    for(;i;i--) 

    printf("%d\n", bit = (bit >> (i - (i -1)))); 


    512, 256, 128, 64, 32 
    b. 256, 128, 64, 32, 16 
    c. 128, 64, 32, 16, 8 
    d. 64, 32, 16, 8, 4 
      

  32. main() 

    signed int bit=512, i=5; 
      
    for(;i;i--) 

    printf("%d\n", bit >> (i - (i -1))); 


      
    a. 512, 256, 0, 0, 0 
    b. 256, 256, 0, 0, 0 
    c. 512, 512, 512, 512, 512 
    d. 256, 256, 256, 256, 256 

  33. main() 

    if (!(1&&0)) 

    printf("OK I am done."); 

    else 

    printf(“OK I am gone.”); } 

      
    a. OK I am done 
    b. OK I am gone 
    c. compile error 
    d. none of the above 

  34. main() 

    if ((1||0) && (0||1)) 

    printf("OK I am done."); 

    else 

    printf(“OK I am gone.”); } 

      
    a. OK I am done 
    b. OK I am gone 
    c. compile error 
    d. none of the above 

  35. main() 

    signed int bit=512, mBit; 
      

    mBit = ~bit; 
    bit = bit & ~bit ; 
      
    printf("%d %d", bit, mBit); 


      
    a. 0, 0 
    b. 0, 513 
    c. 512, 0 
    d. 0, -513 

 




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