help with assignment

[bigmoney221]

using the find, length, substr, and ignore functions, I need to read in a string from a file that has a unique character within the sentence. Using the manipulators I need to write to an outfile the sentence correctly without that unique character.
I know how to read in and output the string, but cannot seem to figure out how to manipulate it.
Help, Please.

[Bdanielz]

I would start by writing an algorithm in plain english.
How do suppose you would find a unique character in a string?

Then try to implement your algorithm in code and if you have issues post your questions and code here.