I dont understand what we are supposed to do here

#1

I cant sense of the sample input and output,can you pls explain it to me.

#2

Hello,
Relate this problem to your mobile’s keypad.

If you have to search the name/contact of any particular person, then you can directly search on the keypas as:

2 corresponds to letters a, b, c
3 corresponds to letters d, e, f
4 to g, h, i
so on… till 9

So, you have given a vector of names/ strings as specified in question.
Now, user will enter a string of digits.

Example : 34

34 will result into combinations :

*dg *eg *fg
*dh *eh *fh
*di *ei *fi

Corresponding strings are output.

vidhi contains dh
divyam contains di
sneha contains eh

Hope, this would help.
Give a like, if you are satisfied.

#3

Please, mark it as resolved if your doubt is resolved.