Pattern

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

using namespace std;

int main()
{
    bool w = false;
    int count = 0, t = 0;
    string s = "";
    vector <int> digits;
    vector <string> pattern;
    pattern.push_back("1");
    cout << "1, ";
    while (t < 4)
    {
        for (int i = 0; i < pattern[pattern.size() - 1].size(); i++)
        {
            for (int k = 0; k < digits.size(); k++)
            {
                if (pattern[pattern.size() - 1][i] == (digits[k] + '0'))
                {
                    w = true;
                    break;
                }
            }
            if (!w)
            {
                for (int j = 0; j < pattern[pattern.size() - 1].size(); j++)
                {
                    if (pattern[pattern.size() - 1][j] == pattern[pattern.size() - 1][i])
                        count++;
                }
                s += (count + '0');
                s += pattern[pattern.size() - 1][i];
                count = 0;
                digits.push_back(pattern[pattern.size() - 1][i] - '0');

            }
            w = false;

        }
        if (t != 3)
            cout << s << ", ";
        else
            cout << s;
        pattern.push_back(s);
        digits.clear();
        s = "";
        t++;
    }
    cout << endl;
}