gistfile1.txt

#include <iostream>
#include <fstream>
#include <map>
#include <string>
#include <cctype>

using namespace std;

int main() {
    ifstream in("input.txt");
    ofstream out("output.txt");

    map<string, int> freq;
    string word;

    while (in >> word) {
        string w;
        for (char c : word) {
            if (isalpha((unsigned char)c))
                w += tolower(c);
        }
        if (!w.empty())
            freq[w]++;
    }

    string maxWord;
    int maxCount = 0;

    for (auto &p : freq) {
        cout << p.first << " " << p.second << endl;
        out << p.first << " " << p.second << endl;
        if (p.second > maxCount) {
            maxCount = p.second;
            maxWord = p.first;
        }
    }

    cout << maxWord << " " << maxCount << endl;
    out << maxWord << " " << maxCount << endl;

    return 0;
}

2