#include <iostream>
#include <algorithm>
 
int main() {
	char *pass = "Qqqqqqqwwwww11111"; // or by user input
 
	// using std::string is easier and safer (works similarly with std::vector)
	std::string data(pass);
 
	// Remove duplicates with std::sort and std::unique
	std::sort(data.begin(), data.end());
	auto end = std::unique(data.begin(), data.end());
 
	// Remove duplicates – if needed.
	data.erase(end, data.end());
 
	// Print the unique chars
	std::cout << data << std::endl;
	return 0;
}

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