#include <iostream> #include <ranges> #include <unordered_map> #include <map> using namespace std; int main() { std::ios_base::sync_with_stdio(false); std::cin.tie(NULL); uint32_t n; cin >> n; unordered_map<uint32_t, uint32_t> counts; map<uint32_t, uint32_t> counts_count; uint32_t temp; for (int i = 0; i < n; ++i) { cin >> temp; counts[temp]++; } for (auto [num,count]: counts) { counts_count[count]++; } uint32_t count_seq = 0; uint32_t num_in; for (auto [count, count_num] : std::ranges::reverse_view(counts_count)) { num_in = (n - 1) / (count * 2 - 1) + 1; if (num_in <= count_num) { count_seq += num_in; cout << count_seq << '\n'; return 0; } else { n -= (count * 2 - 1) * count_num; count_seq += count_num; } } 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 | #include <iostream> #include <ranges> #include <unordered_map> #include <map> using namespace std; int main() { std::ios_base::sync_with_stdio(false); std::cin.tie(NULL); uint32_t n; cin >> n; unordered_map<uint32_t, uint32_t> counts; map<uint32_t, uint32_t> counts_count; uint32_t temp; for (int i = 0; i < n; ++i) { cin >> temp; counts[temp]++; } for (auto [num,count]: counts) { counts_count[count]++; } uint32_t count_seq = 0; uint32_t num_in; for (auto [count, count_num] : std::ranges::reverse_view(counts_count)) { num_in = (n - 1) / (count * 2 - 1) + 1; if (num_in <= count_num) { count_seq += num_in; cout << count_seq << '\n'; return 0; } else { n -= (count * 2 - 1) * count_num; count_seq += count_num; } } return 0; } |