ポーカー

#include "Header.h"

const int&  Poka::checkSamaCard()
{
    int sameCards =0;
    for(int i=0; i<HAND; i++){
        for(int j=0; j<HAND; j++){
            m_numbers.at(i) == m_numbers.at(j) ? sameCards++ : sameCards;
        }
    }
    return sameCards;
}

const std::string Poka::checkRank()
{
    const int sameCards = checkSamaCard();
    if( sameCards == 17 )
        return "4K";
    if( sameCards == 13 )
        return "FH";
    if( sameCards == 11 )
        return "3K";
    if( sameCards == 9 )
        return "2P";
    if( sameCards == 7 )
        return "1P";

    return "--";
}

void Poka::getNumbers(std::string input)
{
    int index = 0;
    for(int i=0; i<HAND; i++){
        index = input.find_first_of("SHDC",index) +1;
        m_numbers.push_back(input.substr(index, 1));
    }
}

const std::string Poka::solve(const std::string& input)
{
    getNumbers(input);
    const std::string& rank = checkRank();
    return rank;
}

int main()
{
    const std::string input = "S8D10H10S10C10";
    Poka poka;
    std::cout << poka.solve(input) << std::endl;
    return 0;
}

#ifndef _HEADER_H
#define _HEADER_H

#include <string>
#include <iostream>
#include <vector>

#define HAND 5

class Poka
{
public:
    const std::string           solve(const std::string& input);
private:
    const int&                  checkSamaCard();
    const std::string           checkRank();
    void                        getNumbers(std::string input);
    std::vector<std::string>    m_numbers;//10は1とする。
};

#endif