BIT C Programming

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

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.

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.

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

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

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

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;
}

Write a program to generate the following pattern of Integers.

1
1 2
1 2 3
1 2 3 4
1 2 3 4 5

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

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

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

Write short notes on: 
a. Macros
b. Null Pointer