How to passing string array from function to main() by references [c++]

Question

how to do like this ?

Example :

Item status
1. A off
2. B off
3. C off

enter no item to on: 2

-> system("cls") clear all previous output and print new output ass below

Item status
1. A off
2. B on
3. C off

enter no item to on: 1

system("cls") clear all previous output and print new output ass below

Item status
1. A on
2. B on
3. C off

enter no item to on:

Answer 1

in c++ array is passed to some fuction by reference default