с 74 № 20(stack)

#include <iostream>
#include <string>
#include <stack>
#include <fstream>

using namespace std;




int main()
{
    stack<string> words;
    fstream in("input.txt", ios::in);
    while (in.peek() != EOF) {
        string s;
        in >> s;
        words.push(s);
    }
    while (!words.empty()) {
        cout << words.top() << endl;
        words.pop();
    }
}