Spojuvanje (tocno za 5/20, ama premnogu se macev)

#include <bits/stdc++.h>
using namespace std;

bool Cmp(const string &a, const string &b) {
    int v1, v2, lenam = a.length()-1, lenbm = b.length()-1, i = 0, j = 0;
    bool chv1 = true, chv2 = true;
    while (1) {
        //cout << "i:" << i << " j:" << j << " ";
        v1 = a.at(i);
        v2 = b.at(j);
        //cout << "v1:" << v1 << " v2:" << v2 << endl;
        if (v1 == v2 && (chv1 || chv2)) {
            if (i < lenam) {
                i++;
                chv1 = true;
            } else {
                chv1 = false;
            }
            if (j < lenbm) {
                j++;
                chv2 = true;
            } else {
                chv2 = false;
            }
        } else {
            break;
        }
    }
    return v1 > v2;
}

int main() {
    int n;
    cin >> n;
    vector<string> k;
    for (int i = 0; i < n; ++i) {
        string s;
        cin >> s;
        k.push_back(s);
    }
    sort(k.begin(), k.end(), Cmp);
    for (string s : k) cout << s;
}