addition.c

Here is an explanation for each step in the addition.c program:

  1. Include the necessary header files:

  2. The program begins by including the necessary header files using the #include directive. In this case, the standard input/output library stdio.h is included, which provides functions for input and output operations.

  3. Declare the main function:

  4. The main function is the entry point of the program and is where the execution starts. It is declared with the return type int to indicate that it returns an integer value.

  5. Declare variables:

  6. The program declares two integer variables num1 and num2 to store the input values.

  7. It also declares another integer variable sum to store the result of the addition operation.

  8. Prompt for user input:

  9. The printf function is used to display a message asking the user to enter the first number.
  10. The scanf function is used to read the user input and store it in the variable num1.

  11. Similarly, the program prompts for the second number and stores it in the variable num2.

  12. Perform the addition:

  13. The addition operation is performed by assigning the sum of num1 and num2 to the variable sum.

  14. Display the result:

  15. The printf function is used to display the result of the addition operation by printing the value of the variable sum.

  16. Return from the main function:

  17. The return statement is used to exit the main function and return a value to the caller. In this case, the program returns 0 to indicate successful execution.

This is a basic C program that prompts the user to enter two numbers, performs the addition operation, and displays the result.