Problem 7 – The Noise and the Signal

#include <iostream>
#include <sstream>
#include <string>
#include <string.h>
#include <algorithm>
#include <vector>

using namespace std;

int main()
{
    string inPut;
    getline(cin,inPut);

    istringstream ss(inPut);
    string word;
    vector<string> vec;

    while(ss >> word)
    {
        string remove_number = "";
        for (char c : word)
        {
            if (!std::isdigit(c))
            {
              remove_number += c;

            }

        }
            if(remove_number.size() > 0)
            {
                vec.push_back(remove_number);
            }

    }



sort( vec.begin(), vec.end());


if(vec.size() == 0)
    {
        cout<<"no noise";
    }
else
    {
    //for(int i =0; i < vec.size(); i ++)
        cout<<vec[0];
    }

    return 0;
}