結果
問題 | No.5020 Averaging |
ユーザー | ldsyb |
提出日時 | 2024-02-25 16:59:01 |
言語 | C++23 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 903 ms / 1,000 ms |
コード長 | 3,105 bytes |
コンパイル時間 | 5,908 ms |
コンパイル使用メモリ | 316,444 KB |
実行使用メモリ | 6,676 KB |
スコア | 16,431,994 |
最終ジャッジ日時 | 2024-02-25 17:01:36 |
合計ジャッジ時間 | 53,640 ms |
ジャッジサーバーID (参考情報) |
judge12 / judge11 |
純コード判定しない問題か言語 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 902 ms
6,676 KB |
testcase_01 | AC | 901 ms
6,676 KB |
testcase_02 | AC | 903 ms
6,676 KB |
testcase_03 | AC | 903 ms
6,676 KB |
testcase_04 | AC | 902 ms
6,676 KB |
testcase_05 | AC | 902 ms
6,676 KB |
testcase_06 | AC | 902 ms
6,676 KB |
testcase_07 | AC | 901 ms
6,676 KB |
testcase_08 | AC | 902 ms
6,676 KB |
testcase_09 | AC | 902 ms
6,676 KB |
testcase_10 | AC | 902 ms
6,676 KB |
testcase_11 | AC | 902 ms
6,676 KB |
testcase_12 | AC | 902 ms
6,676 KB |
testcase_13 | AC | 903 ms
6,676 KB |
testcase_14 | AC | 902 ms
6,676 KB |
testcase_15 | AC | 902 ms
6,676 KB |
testcase_16 | AC | 902 ms
6,676 KB |
testcase_17 | AC | 901 ms
6,676 KB |
testcase_18 | AC | 902 ms
6,676 KB |
testcase_19 | AC | 902 ms
6,676 KB |
testcase_20 | AC | 902 ms
6,676 KB |
testcase_21 | AC | 902 ms
6,676 KB |
testcase_22 | AC | 902 ms
6,676 KB |
testcase_23 | AC | 902 ms
6,676 KB |
testcase_24 | AC | 902 ms
6,676 KB |
testcase_25 | AC | 902 ms
6,676 KB |
testcase_26 | AC | 902 ms
6,676 KB |
testcase_27 | AC | 902 ms
6,676 KB |
testcase_28 | AC | 902 ms
6,676 KB |
testcase_29 | AC | 902 ms
6,676 KB |
testcase_30 | AC | 902 ms
6,676 KB |
testcase_31 | AC | 902 ms
6,676 KB |
testcase_32 | AC | 901 ms
6,676 KB |
testcase_33 | AC | 903 ms
6,676 KB |
testcase_34 | AC | 902 ms
6,676 KB |
testcase_35 | AC | 902 ms
6,676 KB |
testcase_36 | AC | 902 ms
6,676 KB |
testcase_37 | AC | 901 ms
6,676 KB |
testcase_38 | AC | 902 ms
6,676 KB |
testcase_39 | AC | 902 ms
6,676 KB |
testcase_40 | AC | 902 ms
6,676 KB |
testcase_41 | AC | 903 ms
6,676 KB |
testcase_42 | AC | 902 ms
6,676 KB |
testcase_43 | AC | 902 ms
6,676 KB |
testcase_44 | AC | 902 ms
6,676 KB |
testcase_45 | AC | 902 ms
6,676 KB |
testcase_46 | AC | 902 ms
6,676 KB |
testcase_47 | AC | 901 ms
6,676 KB |
testcase_48 | AC | 902 ms
6,676 KB |
testcase_49 | AC | 902 ms
6,676 KB |
ソースコード
#include <bits/stdc++.h> using namespace std; using namespace chrono; #if __has_include(<atcoder/all>) #include <atcoder/all> using namespace atcoder; #endif int main() { const auto start = steady_clock::now(); std::cin.tie(nullptr); std::ios_base::sync_with_stdio(false); int64_t n; cin >> n; vector<int64_t> as(n), bs(n); for (int64_t i = 0; i < n; i++) { cin >> as[i] >> bs[i]; } random_device rnd; mt19937 engine(rnd()); uniform_int_distribution<> randn(0, n - 1); uniform_int_distribution<> rand1n(1, n - 1); uniform_int_distribution<> rand2n(2, n - 1); int64_t c = 500000000000000000LL; auto calc_score = [&] { return int64_t(2000000 - 100000 * log10(max(abs(as[0] - c), abs(bs[0] - c)) + 1)); }; auto f = [&](int64_t a, int64_t b) { return max(abs(a - c), abs(b - c)); }; pair<int64_t, int64_t> p = {2 * c - as[0], 2 * c - bs[0]}; int64_t s = numeric_limits<int64_t>::max(); vector<int64_t> xs; while (duration_cast<milliseconds>(steady_clock::now() - start).count() < 900) { int64_t sz = rand2n(engine); vector<int64_t> ys(sz); ys[0] = rand1n(engine); for (int64_t i = 1; i < sz; i++) { ys[i] = rand1n(engine); while (ys[i] == ys[i - 1]) { ys[i] = rand1n(engine); } } vector<int64_t> cs(as), ds(bs); for (int64_t i = 1; i < ys.size(); i++) { int64_t x = (cs[ys[i - 1]] + cs[ys[i]]) / 2; int64_t y = (ds[ys[i - 1]] + ds[ys[i]]) / 2; cs[ys[i - 1]] = cs[ys[i]] = x; ds[ys[i - 1]] = ds[ys[i]] = y; } int64_t i = [&] { int64_t ret = 1; for (int64_t i = 2; i < n; i++) { int64_t x = (cs[0] + cs[i]) / 2; int64_t y = (ds[0] + ds[i]) / 2; int64_t a = (cs[0] + cs[ret]) / 2; int64_t b = (ds[0] + ds[ret]) / 2; if (f(x, y) < f(a, b)) { ret = i; } } return ret; }(); cs[0] = (cs[0] + cs[i]) / 2; ds[0] = (ds[0] + ds[i]) / 2; if (f(cs[0], ds[0]) < s) { s = f(cs[0], ds[0]); xs = ys; } } vector<int64_t> us, vs; for (int64_t i = 1; i < xs.size(); i++) { us.push_back(xs[i - 1] + 1); vs.push_back(xs[i] + 1); } us.push_back(1); vs.push_back([&] { int64_t ret = 1; for (int64_t i = 2; i < n; i++) { int64_t x = (as[0] + as[i]) / 2; int64_t y = (bs[0] + bs[i]) / 2; int64_t a = (as[0] + as[ret]) / 2; int64_t b = (bs[0] + bs[ret]) / 2; if (f(x, y) < f(a, b)) { ret = i; } } ret++; return ret; }()); cout << us.size() << '\n'; for (int64_t i = 0; i < us.size(); i++) { cout << us[i] << ' ' << vs[i] << '\n'; } // for (int64_t i = 0; i < us.size(); i++) { // int64_t x = (as[us[i] - 1] + as[vs[i] - 1]) / 2; // int64_t y = (bs[us[i] - 1] + bs[vs[i] - 1]) / 2; // as[us[i] - 1] = as[vs[i] - 1] = x; // bs[us[i] - 1] = bs[vs[i] - 1] = y; // } // cerr << calc_score() << endl; // for (int64_t i = 0; i < n; i++) { // cerr << i << ' ' << as[i] << ' ' << bs[i] << endl; // } return 0; }