std::count() not working!

Question

Why does this function not work in the code playground?

It runs my code fine in VS2017, but not on here....

Answer 1

You need to include <algorithm> for count to work here. IDEs like VS automatically include some headers for you, while Code Playground doesn't.

Answer 2

Can you show your code?

Answer 3

Yup...
https://code.sololearn.com/c7eId39AiUZ9/?ref=app

Answer 4

Wow awesome! Thanks!