#include <iostream>
#include <cstring>
#include <string>

unsigned repeatingCharCount(char const* s)
{
	std::string unique ;

	const unsigned length = std::strlen(s) ;

	for ( unsigned i = 0; i<length; ++i )
	{
		if ( std::string::npos == unique.find(s[i]) )
		unique += s[i] ;
	}

	std::cout << unique << '\n' ;		// ** change here **

	return length - unique.length() ;
}

int main()
{
	char buffer[1000] ; // ick.

	std::cout << "Enter a string\n" ;
	std::cin.getline(buffer, 1000) ;	// ** change here **
	// std::cin >> buffer ;

	std::cout << '"' << buffer << "\" has "
		<< repeatingCharCount(buffer) << " repeats.\n" ;
}