getch' was not declared in this scope

1. Issue Description: The error "getch' was not declared in this scope" is encountered.

2. Explanation: The error occurs because the getch function is not recognized in the current scope. This could be due to a missing header file or library that declares the getch function.

3. Resolution Steps:

4. Include the appropriate header file: #include <conio.h> for Windows or #include <curses.h> for Unix-like systems.

5. Ensure that the necessary library is linked during the compilation process. For example, with GCC, use the -l flag to link the appropriate library, such as -lncurses for Unix-like systems.

6. Example:

#include <stdio.h>
#ifdef _WIN32
#include <conio.h>
#else
#include <curses.h>
#endif

int main() {
    char ch = getch();
    printf("The character entered is: %c\n", ch);
    return 0;
}