Gujarat University
MCA Semester I
FOP
ATKT Exam
Date: 7h August,1999 Marks: 50
Section I
Q-1 a. Describe the various data types available in C. 9
b. What is a variable? Hoe does an array variable differ from an ordinary variable?
c. Summarize the syntactic rules associated with for statement.
d. What is the purpose of the break statement? Suppose a break statement is included within the
innermost of several nested control statements. What happens when the break statement is executed.
e. When passing an argument to a function, what is the difference between passing by value and
passing by reference? To what types of arguments does each apply?
f. Distinguish between global and extern variables.
Q-2 a. Determine the value of each of the following logical expression if a=5, b=10 , c=-6 8
i. a>b && a<c
ii. a==c || b>a
iii.b>15 && c<0 || a>0
iv. (a/2.0 == 0.0 && b/2.0 != 0.0) || c<0.0
b. Describe the output generated by the following program:
main()
{
int a, count;
int f1(int count);
for (count=1; count<=4; ++count)
{
a = f1(count);
printf(“%d”, a);
}
}
f1(int x)
{
static int y =0;
y+=x;
return (y);
}
OR
Q-2 a. Write difference between while and do-while loops, with example. 8
b. What will be the outcome of the following:
#include<stdio.h>
main()
{
int I,j, x=0;
for (I=0; I<5; ++I)
for (j=0; j<I; ++j)
{
x += (I +j-1);
printf(“%d”, x);
}
printf(“\nx = %d”, x);
}
Q-3 a. Explain static array with example. 8
b. Write a complete ‘C’ program to read marks of 5 subjects of 30 students for 10 classes. Display
maximum marks of every subject for each class.
OR
Q-3 a. Write a recursive C function to generate 15th terms of Fibonacci series. 8
b. Write a program which will read a string and rewrite it in sorted order. For example, the word
STRING should be written as GINRST
Section II
Q-4 Answer the following: 10
a.What is the difference between formal arguments and actual arguments?
b.How can an entire structure be passes to a function? Describe.
c.What is a union? How does a union differ from a structure?
d.What is the principal difference between the function malloc and calloc?
e.Why a linked list is called a dynamic data structure? What are advantages of using linked lists over arrays?
Q-5 Write a program to accept 10 integers. Define a function, which is receiving 10 integers from the main program as an array. Function should sort the numbers using any convenient method and return the sorted array back to main program. 7
OR
Q-5 Define a structure that can describe a hotel. It should have members that include the name, address, grade, average, average from charge, and number of rooms. 7
Write functions to perform the following operations:
a. to print out hotels of a given grade in order of charges
b. to print out hotels with room charges less than a given value
Q-6 a. A C program contains the following statements 8
char u, v= ‘A’;
char *pu, *pv = &v;
……………
*pv = v+ 1;
u = *pv + 1;
pu = &u;
Suppose each character occupies 1 byte of memory. If any value assigned to u is stored in (hexadecimal) address FBC and the value assigned to v is stored in address F8D, then
1. what value is represented by &v?
2. what value is assigned to pv?
3. what value is represented by *pv?
4. what value is assigned to u?
5. what value is represented by &u?
6. what value is assigned to pu?
b. Write a ‘C’ program to search an element in a given linked list.
OR
Q-6 a. Explain the use of pointers in variable parameter passing with example. 8
b. Two files DATA1 and DATA2 contain sorted lists of integers. Write a program to produce a third file DATA which holds a single sorted, merged list of these two lists. Use command line arguments to specify the file names.
