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‎Reg No.: Name:

‎APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY
FIRST SEMESTER MCA DEGREE EXAMINATION, JULY 2018

‎Course Code: RLMCAIO1
Course Name: PROBLEM SOLVING AND COMPUTER PROGRAMMING

‎Max. Marks: 60 Duration: 3 Hours
PART A
Answer all questions, each carries 3 marks Marks
1 What do you mean by the scope of a variable within a program? What will be (3) the

‏دم ~ +~ ہ ‎ರಾ‏

‎output of the following program?
int x = 10; main()

‎{ int x = 20;

‎printf(“%d”, x);

‎show(); )

‎show()

‎{ printf(‘“%d”, x); }

‎Differentiate between malloc() and calloc() functions in C. (3)
With example explain the use of break and continue statements in C. (3)
What is the difference between passing by value and passing by reference? (3)
What are Self referential structures? Explain. (3)
Write the output of the following program. (3)
void main()
{ int
X,y,*ptr;
x=0;
ptr = &x;
y = *ptr;
*ptr ಎ1;

‎printf("%d,%d" x,y);

‎How are command line arguments passed to a C program? (3)

‎What is a macro? Compare macros and functions. (3)
PART B

‎Answer six questions,one full question from each module and carries6 marks
Module I

‎a) You have 5 bottles of pills. Each pill weighs 10gms, except for contaminated pill (3)
contained in one bottle, where each pill weighs 9gms. How could you tell which bottle
had the contaminated pills in just one measurement.

‎b) What are library functions? How are library functions accessed in C? Are the (3) library

‎functions a part of C language?

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