2nd Round Coding

1.

1.Point out the error in the following program

#include<stdio.h>

int main()

{

display();

return 0;

}

void display()

{

printf("Hello");

}

• a. No error

• b. display() doesn't get invoked

• c.
  display() is called before it is defined

• d.
  None of these

2.Which of the following statements are correct about the below declarations?
char *p = "Sanjay";
char a[] = "Sanjay";

1:There is no difference in the declarations and both serve the same purpose.2:p is a non-const pointer pointing to a non-const string, whereas a is a const pointer pointing to a non-const pointer.3:The pointer p can be modified to point to another string, whereas the individual characters within array a can be changed.4:In both cases the '\0' will be added at the end of the string "Sanjay".

• a. 1, 2

• b. 2, 3, 4

• c. 3, 4

• d. 2, 3

3. 3.Point out the error in the program?

   #include<stdio.h>

4. int main()

5. {

6. char ch;

7. int i;

8. scanf("%c", &i);

9. scanf("%d", &ch);

10. printf("%c %d", ch, i);

11. return 0;

12. }

• a. Error: suspicious char to in conversion in scanf()

• b. Error: we may not get input for second scanf() statement

• c. No error

• d. None of above

4.Point out the error in the program

#include<stdio.h>

int main()

{

int a=10;

void f();

a = f();

printf("%d\n", a);

return 0;

}

void f()

{

printf("Hi");

}

• a. Error: Not allowed assignment

• b. Error: Doesn't print anything

• c. No error

• d.None of above

5.Point out the error in the program?

#include<stdio.h>

int main()

{

struct emp {

char name[20];

float sal; };

struct emp e[10];

int i;

for(i=0; i<=9; i++)

scanf("%s %f", e[i].name, &e[i].sal);

return 0;

}

• a. Error: invalid structure member

• b. Error: Floating point formats not linked

• c. No error

• d. None of above