how to take out the unnecessary characters from a string?

Question

example:
string a = "M*#*m*#*mlls^

Answer 1

Use ASCII values from 65 to 90 for A to Z.

Answer 2

~ swim ~ i didnt get it.Where to find advance c++ tutorials?

Answer 3

~ swim ~ most of them wants money. Youtube only teaches the basics not the advance.I had started cybary thinking it was free but soon realizing it was not.So what now?

Answer 4

~ swim ~ the logic cant be developed through only this app

Answer 5

Ashwini adsule i didnt get it .But anyway thanks