Zoho Sample Placement Paper & Questions

1. What is the output of this C code?

#include <stdio.h>

void main()

{

int a = 45;

int b = sizeof(a++);

printf("A is %d", a);

}

2. Comment on the output of this C code?

#include <stdio.h>

int main()

{

int num = 10;

switch (num)

{

case num:

printf("Matched num ");

default:

printf("Default");

}

}

3. What is the output of this C code?

#include <stdio.h>

int main()

{

printf("%d ", 5);

goto label1;

printf("%d ", 6);

}

void display()

{

label1: printf("7 ");

}

4. What is the output of this C code?

#include <stdio.h>

int main()

{

float f = 5.5;

void *ptr = &f;

printf("%f\n", (float)*ptr);

return 0;

}

5. What is the output of this C code?

#include <stdio.h>

void bar(double *);

int main()

{

int x = 25, *ptr = &x;

bar(&x);

}

void bar(double *ptr)

{

printf("%lf\n", *ptr);

}

6. What is the output of this C code?

#include <stdio.h>

void execute(int (*ptr)(int));

int funcA(int x);

int (*funcPtr)(int) = funcA;

int main()

{

execute(funcPtr(5));

}

void execute(int (*x)(int))

{

x(6);

}

int funcA(int x)

{

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

return x;

}

7. What is the output of this C code?

#include <stdio.h>

int ((y()))[3];

typedef int ((ptr)())[3] ptrType;

int main()

{

ptrType ptr2;

ptr2 = y;

ptr2();

return 0;

}

int ((y()))[3]

{

int (*array)[3] = malloc(sizeof *array);

return &array;

}

8. Which of the following share a similarity in memory allocation?

Static variables, 2. Global variables, 3. Dynamic variables, 4. Local variables

9. Which type of files cannot be opened using fopen()?

10. The scanf function checks for input overflow.

11. A card is drawn from a well-shuffled pack of cards. The probability of getting a queen of the club or king of the heart is ?

12. An Arab buys two horses, paying Rs. 5000 less for one than for the other. He sells the dearer one at 20% gain and the cheaper one at 30% gain. If he gets Rs. 4000 less on the first than on the second, then the cost price of the second horse is

13. A and B set out to meet each other from two places 165 km apart. A travels 15 km the first day, 14 km the second, 13 km the third and so on. B travels 10 km the first day, 12 km the second, 14 km the third and so on. When will they meet?

14. A park receives an average of 600 visitors on Saturdays and 300 on other days. What is the average number of visitors per day in a month of 30 days starting on a Saturday?

15. What will be the least number that, when tripled, will be exactly divisible by 8, 15, 20, and 25?