IMPORTANT C Programming QUESTION

GYAN WALLA
personGYAN WALLA
April 05, 202513 minute read
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Master C Programming: Past Year Questions Guide for CSIT First Semester

Welcome CSIT First Semester students! C Programming is a foundational course for your degree. To help you prepare effectively, we've compiled a chapter-wise guide of past year questions (PYQs) from 2074 to 2081 for your C Programming (CSC115) course at Tribhuvan University. Use this resource to understand the exam pattern, focus your studies, and boost your exam performance.


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Course Overview

Get a quick overview of the C Programming course structure:

  • Course Title: C Programming
  • Course Code: CSC115
  • Semester: I
  • Nature: Theory + Lab
  • Full Marks: 60 (Theory) + 20 (Practical) + 20 (Internal Assessment)
  • Pass Marks: 24 (Theory) + 8 (Practical) + 8 (Internal Assessment)
  • Credit Hours: 3
  • Description: Covers structured programming concepts using the C language.
  • Objective: Familiarize students with C programming techniques.

Syllabus Units

The C Programming syllabus is divided into 11 units:

  1. Unit 1: Problem Solving with Computer (2 Hrs.)
  2. Unit 2: Elements of C (4 Hrs.)
  3. Unit 3: Input and Output (2 Hrs.)
  4. Unit 4: Operators and Expression (4 Hrs.)
  5. Unit 5: Control Statement (4 Hrs.)
  6. Unit 6: Arrays (6 Hrs.)
  7. Unit 7: Functions (5 Hrs.)
  8. Unit 8: Structure and Union (5 Hrs.)
  9. Unit 9: Pointers (6 Hrs.)
  10. Unit 10: File Handling in C (4 Hrs.)
  11. Unit 11: Introduction to Graphics (3 Hrs.)

Past Year Questions by Syllabus Unit

Unit 1: Problem Solving with Computer

  • What is algorithm? How is it different from flow chart? (2074, 5 marks)
  • Explain flowchart with example. What are the benefits of using flowcharts? (2077, 5 marks)
  • Discuss structure of a C Program with suitable example. (2078, 5 marks)
  • Explain the basic structure of C Programming. (2081, 5 marks)
  • Write short notes on: Compilation and execution. (2077, part of 5 marks)
  • Write short notes on: Debugging. (2081, part of 5 marks)

Unit 2: Elements of C

  • Discuss structure of a C Program with suitable example. (2074, 10 marks)
  • Write short notes on: History of C. (2078, part of 5 marks)
  • What is data type? Why do we need it in programming? Explain any three basic data types with example. (2077, 5 marks)
  • What is variable? How is it different from constant? How do you write comments in C? (2078, 5 marks)
  • Differentiate between constant and literals. Why do we need to define the type of data? (2079, 5 marks)
  • Differentiate between source code and object code. (2080, part of 10 marks)

Unit 3: Input and Output

  • What do you mean by unformatted I/O? Explain. (2077, 5 marks)
  • Explain formatted I/O functions in detail. (2078, 5 marks)
  • Describe the different types of I/O functions used in file handling with syntax. (2080, 5 marks)
  • Describe different formatted input and output functions. Why do we use them? (2081, 5 marks)

Unit 4: Operators and Expression

  • Discuss increment and decrement operators with example. (2074, 5 marks)
  • Discuss different logical operation in detail. (2075, 5 marks)
  • Write short notes on: Operator precedence and associativity. (2077, part of 5 marks)
  • Write short notes on: Bitwise Operator. (2078, part of 5 marks)
  • List different types of operators and explain any three of them. (2080, 5 marks)
  • List different types of operators and explain any four of them. (2081, 10 marks)
  • Write short notes on: Conditional Operator. (2079, part of 5 marks)

Unit 5: Control Statement

  • Discuss different types of if statements with example of each. Differentiate if statement with switch statement. (2074, 10 marks)
  • What is looping statement? Discuss different looping statements with suitable example of each. (2075, 10 marks)
  • What is break statement? Discuss with example. How the break statement is different from continue statement? (2075, 5 marks)
  • What do you mean by looping? Explain while loop with suitable example. Compare while loop with do-while loop. Write a program to find sum and average of first n natural numbers. (2077, 10 marks)
  • What do you mean by jump statement? Explain each jump statement with example. Write a program to check whether a number entered is prime or not. (2078, 10 marks)
  • 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;
  }
    (2079, part of 10 marks)
  • 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 follows: Find Odd or Even, Find Positive or Negative, Find the Factorial value, Exit. The choice will be displayed until the user gives “D” as a choice. (2079, 10 marks)

Unit 6: Arrays

  • Write a program to find sum and average of 10 integer numbers stored in an array. (2074, 5 marks)
  • Define array? What are the benefits of using array? Write a program to add two matrices using array. (2075, 10 marks)
  • What are the benefits of using arrays? Compare one dimensional array with two dimensional array. Write a program to find transpose of a matrix. (2077, 10 marks)
  • Explain any three string functions. Write a program to check if two matrices are identical or not. (2078, 10 marks)
  • Write a program to find the second largest number in the given array of numbers. (2079, 5 marks)
  • Write a program to read P*Q matrix of integers and find the largest integer of each row and display it. (2080, 5 marks)
  • Write a program to initialize an array of dimension 10 and sort the numbers within the array in ascending order. (2080, 5 marks)
  • What are the characteristics of array? Write a program to input age of 500 persons and display the following: Average age, Age between 25 to 30. (2081, 10 marks)

Unit 7: Functions

  • What is function? Discuss the benefits of using function. (2074, 5 marks)
  • Write a program to find product of two integers using your own function. (2077, 5 marks)
  • Write a program using your own function to find sum of two numbers. (2078, 5 marks)
  • Define formal argument and actual argument in function with examples. (2079, part of 10 marks)
  • Write a program to find the sum of digits of a given integer using recursion. (2079, 5 marks)
  • Write a program to calculate the factorial of a given number using recursion. (2080, 5 marks)
  • Write a program to compute the sum of first 10 even numbers using function. (2080, 5 marks)
  • Differentiate between library function and user-defined function. Write a program to swap two values using call by reference concept. (2081, 10 marks)
  • Demonstrate the use of recursive function with a suitable example. (2081, 5 marks)
  • Write short notes on: Local, Global, and Static variables. (2079, part of 5 marks)

Unit 8: Structure and Union

  • What is structure? How is it different from array? Create a structure student having data members name, roll-number, and percentage. Complete the program to display the name of student having percentage greater than or equal to 60. (2074, 10 marks)
  • What is structure? Create a structure rectangle with data members length and breadth. (2075, 5 marks)
  • What is structure? How is it different from union? Create a structure named course with name, code, and credit_hour as its members. Write a program using this structure to read data of 5 courses and display data of those courses with credit_hour greater than 3. (2077, 10 marks)
  • Define structure. Explain nested structure with example. Create a structure named book with name, author, and publisher as its members. Write a program using this structure to read data of 50 books and display name of those books published by “XYX” publisher. (2078, 10 marks)
  • 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 and living in Kathmandu. (2079, 5 marks)
  • What is the advantage of the union over structure? List any four string library functions with the prototype. (2079, 5 marks)
  • Define structure and nested structure. (2080, part of 10 marks)
  • Create a structure named Book with members Book_Name, Price, and Author_Name, then take input for 10 records of Book and print the name of authors having the price of book greater than 1000. (2080, 10 marks)
  • Create a structure called STUDENT with data members SID, name, address, CGPA. Write a program to initialize the value of 100 students and display the information of those students whose address is “KTM” and CGPA is between 3.5 to 4 using C program. (2081, 5 marks)

Unit 9: Pointers

  • Define pointer. Discuss the relationship between pointer and one-dimensional array. (2074, 5 marks)
  • Define pointer. How do you return pointers from functions? Explain with example. (2077, 5 marks)
  • List any one advantage and disadvantage of the pointer. How do you pass pointers as function arguments? (2079, 5 marks)
  • Explain the relation to array and pointer. Differentiate call by value and call by reference with a suitable program. (2080, 10 marks)
  • What is dynamic memory allocation? Explain with a suitable program. (2080, 5 marks)

Unit 10: File Handling in C

  • Write a program to read and print data stored in a file input.txt. (2074, 5 marks)
  • Why do we need data files? What are the different file opening modes? Write a program that reads data from a file “input.txt” and writes to “output.txt” file. (2075, 10 marks)
  • Explain different file I/O functions with example. (2077, 5 marks)
  • Write a program that simply reads data from a file. (2078, 5 marks)
  • 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. (2079, 5 marks)
  • Describe the different types of I/O functions used in file handling with syntax. (2080, 5 marks)
  • Explain different file opening modes. (2081, 5 marks)
  • Write short notes on: Benefits of data files. (2075, part of 5 marks)

Unit 11: Introduction to Graphics

  • Why do we need graphics functions? Write a program to draw a circle. (2074, 5 marks)
  • Write short notes on: Graphics functions. (2075, part of 5 marks)
  • Write a program to draw a circle using graphics function. (2077, 5 marks)
  • Write a program to draw a line using graphics function. (2078, 5 marks)
  • Write a program to draw two shapes of your choice using graphics function. (2081, 5 marks)

Additional Programming Exercises

Practice these general programming questions that cover concepts from multiple units:

  • Write a program that computes the sum of digits of a given integer number. (2074, 5 marks)
  • Write a program to check whether a number entered is even or odd. (2075, 5 marks)
  • Write a program to calculate sum of first 10 odd numbers. (2075, 5 marks)
  • Write a program to display first n prime numbers. (2077, 5 marks)
  • Write a program to print largest among three numbers entered by the user. (2078, 5 marks)
  • How do you swap the values of two integers without using the third temporary variable? Justify with the example. (2079, 5 marks)
  • Write a program to check whether the entered word is palindrome or not. (2080, 5 marks)
  • Trace the output of the following code: 
    
  #include
  #include
  void main(){
      int i = 0, k;
      for(k = 5; k >= 0; k--){
          i = i + k;
      }
      printf("%d\t", i);
      getch();
  }
    (2080, 5 marks)
  • Write a program to display first 50 prime numbers. (2081, 5 marks)
  • Write a program to display the following series up to 25 terms but do not print the 7th term: 2 x 3, 3 x 5, 4 x 7, 5 x 9… (2081, 5 marks)

This comprehensive guide of past year C Programming questions is designed to be your ultimate study companion. Practice these questions unit by unit to build a strong foundation and excel in your exam. Best wishes for your C Programming exam!

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