SKC
LAB:1 a. Write a C program to print Hello World. i. Problem Solving Logic – None ii. Algorithm Step 1. Start the program execution. Step 2. Include the necessary header file (stdio.h) for input and output operations. Step 3. Declare the main function, which serves as the entry point for the program. Step 4. Inside the main function: a) Use the printf function to print the string "Hello World" followed by a newline character (\n) to the console. b) Return 0 to indicate successful program execution. Step 5. End the program. b. Write a C program to calculate the area of a circle i. Problem Solving Logic a) Input the radius: Prompt the user to input the radius of the circle. b) Calculate the area: Once you have the radius, use the formula for the area of a circle, which is π * r^2, where r is the radius and π is a constant value. c) Output the result: Display the calculated area. ii. Algorithm Step 1. Start: Begin th...