Write a C program to find the areas of a circle, a triangle, a square and a rectangle using four different types of user defined functions.

Write a C program that will copy m consecutive characters from a string s1 beginning at position n into another string s2.

Describe the general form of a simple C program that includes at least directives, functions and statements.

Discuss the problem-solving methodology with giving an appropriate C program as an example.

Considering all possible situations, write a C program to solve any Quadratic Equation.

When is it better to use switch statement in a C program? Using switch statement, write a C program to calculate your grade of any course.

Write a C program to display a Pyramid of stars of any height.

Write a C program to search a value within an array of elements.

Write a C program to sort n number of elements in ascending order.

Write a C program to calculate Standard Deviation of an array of values using function.

Define a structure named Student which enclosed with data fields name, batch, id, incourse1 and incourse2. From keyboard, take input name, batch, id and marks of incourse1 and incourse2 for three students of Student type. Calculate total marks of incourse1 and incourse2 for each student. Print out the details of the student who got the lowest total incourse marks among three students.

Using function, write a C program to find the largest value among three values which are passed as arguments using the call by reference method.

Write C program to convert Celsius temperature to Fahrenheit and store the value into a file.

Write a C program to append additional items to an existing file, "Inventory", stored in "d" drive and print the total contents of the file.