/** * Patryk Kisielewski * * Potyczki Algorytmiczne 2024 * Zadanie: LID - Liderzy [B] */ #include <vector> #include <utility> #include <cstdio> #include <iostream> #include <algorithm> using namespace std; int main() { ios::sync_with_stdio(false); cin.tie(nullptr); int n; cin >> n; vector<int> v(n + 1, 0); int x; for (int i = 0; i < n; ++i) { cin >> x; v[x] += 1; } sort(v.begin(), v.end()); auto start = upper_bound(v.begin(), v.end(), 0); int total = 0; int count = 0; auto it = v.end() - 1; while (true) { ++count; total += 2 * (*it) - 1; if (total >= n) { break; } if (it == start) { break; } --it; } cout << count << '\n'; return 0; }
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 | /** * Patryk Kisielewski * * Potyczki Algorytmiczne 2024 * Zadanie: LID - Liderzy [B] */ #include <vector> #include <utility> #include <cstdio> #include <iostream> #include <algorithm> using namespace std; int main() { ios::sync_with_stdio(false); cin.tie(nullptr); int n; cin >> n; vector<int> v(n + 1, 0); int x; for (int i = 0; i < n; ++i) { cin >> x; v[x] += 1; } sort(v.begin(), v.end()); auto start = upper_bound(v.begin(), v.end(), 0); int total = 0; int count = 0; auto it = v.end() - 1; while (true) { ++count; total += 2 * (*it) - 1; if (total >= n) { break; } if (it == start) { break; } --it; } cout << count << '\n'; return 0; } |