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Posted By: bharath sudar Member Level: Platinum Posted Date: 13 May 2008
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2006 Indira Gandhi National Open University (IGNOU) M.C.A problem solving and programming Question paper
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1. Design an algorithm, draw a corresponding flow chart and write a program in C, to print the fibonacci series (10)
2. Write a program that does not use the inbuilt string functions to perform the following : (10) (i) To compare two strings (ii) To copy a string
3. Design an algorithm, and write a program to find the factorial of a number using recursion (10)
4. A C program contains the following declarations : 10 int i, j; long iX; short S; float X; double dX; char C; Determine the resultant data type of each of the following expressions: (i) i+C (ii) X+C (iii) dX+X (iv) ((int) dx) + ix (v) i+X (vi) S+j (vii) iX+j (viii) S + C (ix) iX+C (x) i+j
5. Summarize the purpose of the format strings (like %s, %d, %c) that are commonly used within the printf function, with an example for each. (10)
6. When can two matrices of order a x b and c x d be subtracted ? Also write a program in C to find the difference of two such matrices. (10)
7. Design an algorithm, draw a corresponding flow chart and write a C program to check whether a given string is a palindrome or not. (10)
8. Explain the meaning of each of the following functions prototypes and mention the return data type of each of them : (10) (i) double f(double a, mt b); (ii) void f(long a, short b, unsigned C); (iii) unsigned f(unsigned a, unsigned b); (iv) mt (*f) (char*, int); (v) mt * f(char*, int);
9. What is the difference between a function and a macro ? Find the largest number among two numbers using a function definition as well as a macro. Which is more efficient in terms of execution time and code size ? (10)
10. Write a program to sort a list of strings in alphabetical order, using an array of pointers. (10)
11. Write a program, usirg structures, to calculate the gross salary and net salary, if the details of an employee along with the basic pay, attendance and deductions are given as input. (10)
12. Write a program to count the number of characters, number of words and number of lines in a given file. (10)
13. Design an algorithm, draw a corresponding flow chart and write a program in C, to print the output in the following format : (10) 1 2 1 2 3 2 1 2 3 4 3 2 1 2 3 4 5 4 3 2 1 2 3 4 5
14. Write a loop that will calculate the sum of every third integer, beginning with I = 2 (i.e., calculate the sum of 2+5+8+11.i-..j, for all values of i that are less than 100. Write the loop in three different ways : (15) (i) Using "while" statement (ii) Using "do-while" statement (iii) Using "for" statement
15. Design an algorithm, draw a corresponding flow chart and write a program in C to convert a decimal number to its binary equivalent. (10)
16. Explain "Structure" and "Union" with an example for each, with appropriate syntax. Further, explain the difference between them. (5)
17. Summarize the use of the gets and puts functions to transfer strings between the computer and the standard input/output devices. Compare the use of these functions with the string transfer feature in the scanf and printf statements, with an example for each. (10)
18. Write a program in C using stmctures to simulate a bill application for a super-market. (10) Note : Assumptions can be made wherever necessary and should be listed.
19. Write an interactive C program that will encode or decode a line of text. To encode a line of text, proceed as follows : (10) (i) Convert each character, including blank spaces, to its ASCII equivalent. (ii) To decode the text, convert its ASCII to its character equivalent.
20. When can two matrices of order a x b and c x d be multiplied ? Also write a progam in C to multiply two such matrices. (10)
21. What is the relationship between an array name and a pointer ? How is an array name to be interpreted when it appears as an argument to a function ? Explain this with an example. (5)
22. Write the usage of the following datatypes, with an example for each : (7) (i) enum (ii) typedef
23. Write a function definition as well as a macro for the following : (8) (i) To find the cube of a given number (ii) To find the largest number among three given numbers.
24. Without using the strcat function, with a program to append a string2 to a stringi , and find the length of the resultant string. 10
25. What are the various purposes of the library function feof ? How might the feof function be utilized within a program that updates an unformatted data file ? Explain this with an example. 10
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