C Programming 2077

Section A

Long Answer Questions.

Attempt any two questions.        (2 x 10 = 20)

1. Explain the role of function in programming. How function is declared, defined and called in C? Write a program to find factorial of 'n' using recursive function.

2. What is an identifier and keyword? Explain the rules for naming valid identifiers in C with example. Write a C program to find sum of digits of a 'n' digit number.

3. How structure is different from union? Write a program to store and display basic information (roll, name, address, email and phone) of students of using a structure.

Section B

Short Answer Questions.

Attempt any eight questions.        (8 x 5 = 40)

4. What is the basic structure of a C program? Explain each part.

5. How break statement is different from continue statement. Explain with examples.

6. What do you mean by multi-dimensional array? Write  program logic to add and display the sum of two m x n matrices.

7. Find errors (if any) in the following program and rewrite it.

        #define(studio.h)

        float main <>

        {

            int m[ ][ ] = ({1,2,3,4});

            for(i=4, i>=0; i--)

            for(j=0, j<4; j++);

            m[i][j] = a[i][j]+b[i][j];

            return 0.0;

        }

8. Write a program to generate the following pattern of Integers.

9. Write a C program to check whether a given string is palindrome or not.

10. What is pointer? Illustrate the use of a double pointer with suitable example.

11. Why file is used in programming? Explain different file opening modes.

12. Write short notes on:

        a. Macros

        b. Null Pointer