Subjective/Objective Pronoun Practice - ESL worksheet by imabalog - Free Printable

It looks like you've uploaded a text-based image containing a programming task, but the actual image isn't visible to me. However, I can help you solve the problem if you provide the details of the task.

From your message, it appears the task involves:

- A C++ program that reads input from `stdin` and writes output to `stdout`.
- The program should not use any external libraries (e.g., no `<iostream>`, `<string>`, etc.), so likely using low-level I/O functions like `getchar()` and `putchar()`.
- The goal is to process input character by character, possibly counting or transforming characters.
- There are specific constraints such as:
- No `cin`, `cout`, `scanf`, `printf`, etc.
- Use only `getchar()` and `putchar()`.
- Avoid string manipulation or arrays unless absolutely necessary.
- Handle input line by line, possibly counting occurrences of certain characters.

If you can describe the exact problem (e.g., "count the number of vowels in the input", or "reverse each line"), I can write and explain the solution.

But since I can’t see the image, here’s a general approach for such problems:

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✔ Example Problem: Count the number of lowercase letters in input

#### Solution (using only `getchar()` and `putchar()`):

```cpp
#include <stdio.h>

int main() {
int c;
int count = 0;

while ((c = getchar()) != EOF) {
if (c >= 'a' && c <= 'z') {
count++;
}
}

// Output the count
while (count > 0) {
putchar('0' + (count % 10));
count /= 10;
}
putchar('\n');

return 0;
}
```

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🔍 Explanation:

1. `getchar()` reads one character at a time until EOF (End of File).
2. We check if the character is a lowercase letter (`'a'` to `'z'`) using ASCII values.
3. Increment a counter for each match.
4. To print the result without `printf`, we manually convert the integer to digits using modulo and division.
5. Print each digit with `putchar()`.

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Please clarify what the exact task is (e.g., “count vowels”, “print reverse of input”, “remove duplicates”, etc.), and I’ll give you the correct C++ solution with detailed explanation.

Alternatively, if you can paste the text from the image, I can solve it directly.