Sure! Let's break down the problem step by step to develop a C program that prints the multi-line output as specified:
### Step-by-Step Solution:
1. Problem Understanding: We need to print a multi-line output using a single `printf` statement in C. The desired output is two lines, with the first line indicating a mathematical expression and its result, and the second line containing a single character `B`.
2. Output Analysis: The desired output should look like:
```
The result of 5 + 3 is:
8
```
3. Using `printf` in C: The C `printf` function can handle formatted text including newlines (`\n`). To achieve the desired multi-line output, we can include the newline character within the format string.
### Step-by-Step C Program:
1. Include necessary headers: We need to include the standard I/O library header.
2. Declare the main function: The entry point of the C program is `main`.
3. Calculate the result: Perform the calculation of `5 + 3` and store the result in a variable.
4. Use `printf` for multi-line output: Format the string to include the newline.
Here's how to write the program:
```c
#include
int main() {
// Calculate sum of 5 + 3
int result = 5 + 3;
// Print the formatted multi-line output using a single printf statement
printf("The result of 5 + 3 is:\n%d\n", result);
return 0;
}
```
### Explanation:
- `#include `: This directive includes the standard input-output library necessary for using `printf`.
- `int main() { ... }`: The main function acts as the entry point for the program.
- `int result = 5 + 3;`: We calculate the sum of `5` and `3` and store it in the variable `result`.
- `printf("The result of 5 + 3 is:\n%d\n", result);`: The `printf` function prints the formatted string.
- `"The result of 5 + 3 is:\n%d\n"`: This format string includes:
- `"The result of 5 + 3 is:"` (a literal string),
- `\n` (a newline character to move to the next line),
- `%d` (a placeholder for the integer value of `result`),
- `\n` (another newline to ensure clean formatting after the integer value).
When you run this C program, it will output:
```
The result of 5 + 3 is:
8
```
This matches the specified multi-line output.
