Why is "getline" command have red under it?

[forest hawk]

@dire sonnet has reached level 1. GG!

[dire sonnet]

idk why

look

[pastel mango]

Hover your mouse on it to see what's wrong.

[upbeat quiver]

Try including the string header and see if that solves the problem.

[worthy scarab]

https://cplusplus.com/reference/string/string/getline/

[dire sonnet]

idk what that is 😭

[upbeat quiver]

getline() comes from the string header, just like cin/cout comes from iostream.

On line 3, do:
#include <string>

See if that solves the problem.

[worthy scarab]

Correctly as Torrman says, include the Standard Library Header called string to be able to use the getline function. when you include something you open up to new functionality in the program.
By writing

#include <string>

On line 3..

You now have the ability to use getline from the std:: (standard library)
You can read more about the string header here https://en.cppreference.com/w/cpp/string

[forest hawk]

@worthy scarab has reached level 6. GG!

[dire sonnet]

alright

thanks