Tribhuvan University

Institute of Science and Technology

2079

Bachelor Level / first-semester / Science

Computer Science and Information Technology( CSC110 )

C Programming

Full Marks: 60 + 20 + 20

Pass Marks: 24 + 8 + 8

Time: 3 Hours

Candidates are required to give their answers in their own words as far as practicable.

The figures in the margin indicate full marks.

Section A

Attempts any two questions:

1

What is the difference between exit(0) and exit(1)? Discuss the need of nested structue with an example. Write a program to find the value of xy without using POW code.

2

Why do we need a break and continue statement? Define formal argument and actual argument in function with examples. Identify and list the errors in the following code.

int main(){
int a,b,c
scanf("%d%d%d, &a, &b, &c);
sum(a, b, c);
return -1;
}

void sum(int x, int y, int z){
int sum;
sum = a + b + c;
return sum;
}
3

Write a program to demonstrate the following menu-driven program. The user will provide an integer and alphabet for making choice and the corresponding task has to be performed according as follow:

1. Find Odd or Even
2. Find Positive or Negative
3. Find the Factorial value
4. Exit

The choice will be displayed until the user will give “D” as a choice.

Section B

Attempts any eight questions:

4

How do you swap the values of two integers without using the third temporary variable? Justify with the example.

5

Write a program to find the sum of digits of a given integer using recursion.

6

Differentiate between constant and literals. Why do we need to define the type of data?

7

Write a program to find the second largest number in the given array of numbers.

8

Create a structure “Employee” having Name, Address, Salary, and Age as member functions. Display the name of the employee having aged between 40 and 50 are living in Kathmandu.

9

List any one advantage and disadvantage of the pointer. How do you pass pointers as function arguments?

10

Suppose a file named “Num.txt” contains a list of integers. Write a program to extract the prime numbers only from that file and write them on “Prime.txt” file.

11

What is the advantage of the union over structure? List any four-string library functions with the prototype.

12

Write short notes on

1. Local, Global, and Static variables
2. Conditional Operator