IGNOU MCS 11 SOLVED ASSIGNMENT

Ques 1.

Explain the differences between call-by-value and call-by-reference in C. Write separate C programs to swap two numbers using both approaches and analyze the output. Which approach reflects the changes outside the function and why?

Ques 2.

Write a C program to calculate the average, highest, and lowest marks obtained by students in a class using an array. Accept n marks from the user and display the results.

Ques 3.

Write a C program to multiply two matrices A and B (of size N×N) and store the result in matrix C. Also, check whether the result is a diagonal matrix.

Ques 4.

Without using built-in string functions, write a menu-driven C program using switch-case to perform the following on two strings:

(i) Count the number of vowels in each string

(ii) Check whether both strings are palindromes

(iii) Replace a character with another

(iv) Find the frequency of each character

Ques 5.

Explain dynamic memory allocation in C. Write a C program to dynamically allocate memory to store a list of numbers and then compute their sum and standard deviation. Free the memory after use. Discuss memory management in your explanation.

Ques 6.

 What is a structure in C? Define a structure for an Employee containing emp_id, name, department, and salary. Write functions to:

• Input employee data


• Display all records


• Find employees with the highest salary


• Calculate average salary department-wise



 

Ques 7.

What are header files in C? Write a C program that uses a macro to convert Celsius to Fahrenheit and vice versa. Use conditional compilation to enable/disable each conversion. Discuss the significance of preprocessor directives.

Ques 8.

Explain the differences between call-by-value and call-by-reference in C. Write separate C programs to swap two numbers using both approaches and analyze the output. Which approach reflects the changes outside the function and why?

Ques 9.

Write a C program to calculate the average, highest, and lowest marks obtained by students in a class using an array. Accept n marks from the user and display the results.

Ques 10.

Write a C program to multiply two matrices A and B (of size N×N) and store the result in matrix C. Also, check whether the result is a diagonal matrix.

Ques 11.

Without using built-in string functions, write a menu-driven C program using switch-case to perform the following on two strings:

(i) Count the number of vowels in each string

(ii) Check whether both strings are palindromes

(iii) Replace a character with another

(iv) Find the frequency of each character

Ques 12.

Explain dynamic memory allocation in C. Write a C program to dynamically allocate memory to store a list of numbers and then compute their sum and standard deviation. Free the memory after use. Discuss memory management in your explanation.

Ques 13.

 What is a structure in C? Define a structure for an Employee containing emp_id, name, department, and salary. Write functions to:

• Input employee data


• Display all records


• Find employees with the highest salary


• Calculate average salary department-wise



 

Ques 14.

What are header files in C? Write a C program that uses a macro to convert Celsius to Fahrenheit and vice versa. Use conditional compilation to enable/disable each conversion. Discuss the significance of preprocessor directives.

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