PLEASE EXPLAIN THE OUTPUT OF THIS CODE??

Question

https://code.sololearn.com/c85k9qU77B5z

The code doesn't work but I copied it from a question in the Play section of the app. Why doesn't it work?

Answer 1

You forgot to add the <vector> header file.
Don't forget to give credit to the original author ;)

https://code.sololearn.com/cC26zIwI4s59/?ref=app

edit: Jackson Meddows my pleasure ^_^

Answer 2

you're forgotten to include the STL vector

Answer 3

Rahul George Thanks a lot for your answer!