Challenge>formatString

Remove extra white-spaces from the given string. Example For input = " abc   a aa  a a ", the output should be formatString(input) = "abc a aa a a".

code>>

string formatString(string i) {

    return i.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries).Aggregate((l,r)=> l+" "+r);

}

문자열 처리에 C++은 최악...