07. 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;
    vector<int> word_size;

    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);
            }
    }

int max_length = 0;
  for(auto i : vec)
  {
      if(max_length < i.length())
      {
          max_length = i.length();
      }
  }

vector<string> max_word;

    for(int i =0; i < vec.size(); i++)
    {
        string max_string;
        max_string = vec[i];

        if(max_length == max_string.size())
        {
           max_word.push_back(max_string);
        }
    }

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

if(vec.size() == 0)
    {
        cout<<"no noise";
    }
else
    {
        cout<<max_word[0];
    }

    return 0;
}