4.

#include <iostream>
#include <string>
using namespace std;

void cetvrti() {
    int num;
    cout << "Koliko rijeci zelize?: ";
    cin >> num;
    string poljeS[num];
    for(int i = 0 ; i < num ; i++) {
        cout << "Upisite " << i+1 << " rijec: ";
        cin >> poljeS[i];
    }
    bool found = true;
    while(found) {
        found = false;
        for(int i = 0 ; i < num-1 ; i++)
            if(poljeS[i].size() < poljeS[i+1].size()) {
                swap(poljeS[i], poljeS[i+1]);
                found = true;
            }
    }

    found = true;
    while(found) {
        found = false;
        for(int i = 0 ; i < num-1 ; i++)
            if(poljeS[i].size() == poljeS[i+1].size() && poljeS[i] > poljeS[i+1]) {
                swap(poljeS[i], poljeS[i+1]);
                found = true;
            }
    }
    for(int i = 0 ; i < num ; i++)
        cout << poljeS[i] << " ";

}

int main() {
    cetvrti();
    return 0;
}