Centre for Development of Advanced Computing(C-DAC) 2005 M.C.A Problem Solving Using C - Question Paper

END-TERM exam
FIRST SEMESTER [MCA] - DECEMBER 2005
Paper Code: MCA-105 Subject: issue Solving Using C
Time: three Hours (Batch – 2004 & 2005) Maximum Marks: 60

Q. 1. (a) provide syntax and task performed by the subsequent functions in C language :-
getch( ), getche( ), getchar( ), fgetc( )
(b) An OS automatically opens 3 files whenever a C program is executed.
Which are these 3 files and how are the referenced?
(c) provide the meaning of the subsequent format specifiers:-
%e %f %o %s %u %ld %14.5f
(d) What is Abstract Data kinds and Derived Data Type? Differentiate ranging from
structure and union data kind.
(e) What is placeholder? After the execution of “ x = y = z = six ”, What will be
the value of x, y and z? Clearly write your assumptions, if any.
Q. 2. (a) Write a program to convert a string of digits into corresponding number e.g.
string “12345” should be converted into a number 12345 and so that it can be
used in any mathematical expression.
(b) Write a function substr( ) that takes 2 strings as arguments and tests
whether 1st argument is a substring of 2nd or not?
Q. 3. describe a structure containing the subsequent information: name, employee code,
age, qualification (last only) and date of joining. You can presume improper
data kind for every of the field. Then write a program to append record in a file
called “employee.txt”.
Q. 4. (a) What is the advantage of linked list over array? provide an example in which
static data allocation is better than dynamic allocation.
(b) learn the subsequent function code and provide output when input is (4, 5)
Mystry (m, n)
{
if(m=0) return(n)
else return (m-n)
}
Paper Code: MCA-105 Subject: issue Solving Using C
Note: Attempt 5 ques. in all, including Q. one which is compulsory.
Q. 5. (a) provide syntax of fread( ) and fwriter( ) functions and discuss the meaning of
every parameters.
(b) Write a program to multiply 2 matrices. Make a provision in your
program to test whether 2 matrices are compatible for multiplication.
Q. 6. (a) discuss with example, concept of parameters by passing and by reference
and by value. Your example should emphasize on the advantages and
disadvantages of both.
(b) Write a function to concatenate string2 to string1 and outcome remains in
string1.
Q. 7. (a) Consider the variable: int A[10], x, *y, **z . Now determine valid statement
from the following:-
y=A; z = &y; y=&A; A=y; z=A
(b) Differentiate “continue and break” statement and also “while and repeat
until” statement
Q. 8. (a) Write a program to calculate EMI (Equated Monthly Installment) for a loan
amount P for a period D years at rate of interest R% per annum on reducing
balance.
(b) provide the output of the subsequent program
main( )
{
int y = 0;
unsigned int x=0;
while (x!=0) {x<<1; y--}
printf(“The value of y is %d”, y);
}

Earning:   Approval pending.