結果
問題 | No.5020 Averaging |
ユーザー | 寝癖 |
提出日時 | 2024-02-25 16:15:41 |
言語 | C++23 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 942 ms / 1,000 ms |
コード長 | 4,101 bytes |
コンパイル時間 | 1,772 ms |
コンパイル使用メモリ | 121,208 KB |
実行使用メモリ | 6,676 KB |
スコア | 38,367,331 |
最終ジャッジ日時 | 2024-02-25 16:16:39 |
合計ジャッジ時間 | 50,701 ms |
ジャッジサーバーID (参考情報) |
judge13 / judge10 |
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 | 907 ms
6,676 KB |
testcase_01 | AC | 909 ms
6,676 KB |
testcase_02 | AC | 931 ms
6,676 KB |
testcase_03 | AC | 930 ms
6,676 KB |
testcase_04 | AC | 942 ms
6,676 KB |
testcase_05 | AC | 910 ms
6,676 KB |
testcase_06 | AC | 931 ms
6,676 KB |
testcase_07 | AC | 929 ms
6,676 KB |
testcase_08 | AC | 905 ms
6,676 KB |
testcase_09 | AC | 929 ms
6,676 KB |
testcase_10 | AC | 913 ms
6,676 KB |
testcase_11 | AC | 931 ms
6,676 KB |
testcase_12 | AC | 906 ms
6,676 KB |
testcase_13 | AC | 930 ms
6,676 KB |
testcase_14 | AC | 907 ms
6,676 KB |
testcase_15 | AC | 931 ms
6,676 KB |
testcase_16 | AC | 906 ms
6,676 KB |
testcase_17 | AC | 930 ms
6,676 KB |
testcase_18 | AC | 931 ms
6,676 KB |
testcase_19 | AC | 912 ms
6,676 KB |
testcase_20 | AC | 908 ms
6,676 KB |
testcase_21 | AC | 936 ms
6,676 KB |
testcase_22 | AC | 930 ms
6,676 KB |
testcase_23 | AC | 907 ms
6,676 KB |
testcase_24 | AC | 924 ms
6,676 KB |
testcase_25 | AC | 930 ms
6,676 KB |
testcase_26 | AC | 929 ms
6,676 KB |
testcase_27 | AC | 908 ms
6,676 KB |
testcase_28 | AC | 932 ms
6,676 KB |
testcase_29 | AC | 905 ms
6,676 KB |
testcase_30 | AC | 930 ms
6,676 KB |
testcase_31 | AC | 929 ms
6,676 KB |
testcase_32 | AC | 909 ms
6,676 KB |
testcase_33 | AC | 906 ms
6,676 KB |
testcase_34 | AC | 930 ms
6,676 KB |
testcase_35 | AC | 930 ms
6,676 KB |
testcase_36 | AC | 907 ms
6,676 KB |
testcase_37 | AC | 907 ms
6,676 KB |
testcase_38 | AC | 929 ms
6,676 KB |
testcase_39 | AC | 930 ms
6,676 KB |
testcase_40 | AC | 907 ms
6,676 KB |
testcase_41 | AC | 906 ms
6,676 KB |
testcase_42 | AC | 930 ms
6,676 KB |
testcase_43 | AC | 930 ms
6,676 KB |
testcase_44 | AC | 907 ms
6,676 KB |
testcase_45 | AC | 907 ms
6,676 KB |
testcase_46 | AC | 930 ms
6,676 KB |
testcase_47 | AC | 929 ms
6,676 KB |
testcase_48 | AC | 931 ms
6,676 KB |
testcase_49 | AC | 907 ms
6,676 KB |
ソースコード
#include <iostream> #include <vector> #include <cmath> #include <cstdlib> #include <ctime> #include <algorithm> using namespace std; long long calc_score(const vector<pair<int, int>>& op, const vector<long long>& init_A, const vector<long long>& init_B, int N) { vector<long long> A = init_A, B = init_B; for (auto& p : op) { int u = p.first - 1; int v = p.second - 1; long long a = A[u], b = A[v]; A[u] = A[v] = (a + b) / 2; long long c = B[u], d = B[v]; B[u] = B[v] = (c + d) / 2; } long long V1 = abs(5e17 - A[0]); long long V2 = abs(5e17 - B[0]); long long V = -V1/2 - V2/2; return V; // long long V = max(V1, V2); // if (V == 0) { // return 2000050 - op.size(); // } else { // return floor(2000000.0 - 100000.0 * log10(V + 1)); // } } long long calc_true_score(const vector<pair<int, int>>& op, const vector<long long>& init_A, const vector<long long>& init_B, int N) { vector<long long> A = init_A, B = init_B; for (auto& p : op) { int u = p.first - 1; int v = p.second - 1; long long a = A[u], b = A[v]; A[u] = A[v] = (a + b) / 2; long long c = B[u], d = B[v]; B[u] = B[v] = (c + d) / 2; } long long V1 = abs(5e17 - A[0]); long long V2 = abs(5e17 - B[0]); long long V = max(V1, V2); if (V == 0) { return 2000050 - op.size(); } else { return floor(2000000.0 - 100000.0 * log10(V + 1)); } } int main() { srand(time(nullptr)); int N; cin >> N; vector<long long> init_A(N), init_B(N); for (int i = 0; i < N; ++i) { cin >> init_A[i] >> init_B[i]; } // 初期化 int X = 50; vector<pair<int, int>> op; vector<long long> A = init_A, B = init_B; while (op.size() < X / 2) { int min_idx_A = min_element(A.begin(), A.end()) - A.begin(); int max_idx_A = max_element(A.begin(), A.end()) - A.begin(); if (min_idx_A == max_idx_A) break; op.push_back({min_idx_A + 1, max_idx_A + 1}); long long new_value_A = (A[min_idx_A] + A[max_idx_A]) / 2; A[min_idx_A] = A[max_idx_A] = new_value_A; } // Bに対する操作 while (op.size() < X) { int min_idx_B = min_element(B.begin(), B.end()) - B.begin(); int max_idx_B = max_element(B.begin(), B.end()) - B.begin(); if (min_idx_B == max_idx_B) break; op.push_back({min_idx_B + 1, max_idx_B + 1}); long long new_value_B = (B[min_idx_B] + B[max_idx_B]) / 2; B[min_idx_B] = B[max_idx_B] = new_value_B; } // ランダムな操作を追加 while (op.size() < X) { int u = rand() % N + 1; int v = rand() % N + 1; if (u != v) { op.push_back({u, v}); } } long long score = calc_score(op, init_A, init_B, N); double start_temp = 2000.0; double end_temp = 10.0; double time_limit = 0.90; clock_t start_time = clock(); while (true) { double now_time = double(clock() - start_time) / CLOCKS_PER_SEC; if (now_time > time_limit) { break; } double temp = start_temp + (end_temp - start_temp) * now_time / time_limit; double r = double(rand()) / RAND_MAX; double diff_threshold = temp * log(r+1e-7); vector<pair<int, int>> new_op = op; int idx = rand() % op.size(); if (rand() % 2 == 0) { int u = rand() % (N-1) + 1; int v = rand() % (N-u) + u + 1; new_op[idx] = {u, v}; } else { int idx2 = rand() % op.size(); swap(new_op[idx], new_op[idx2]); } long long new_score = calc_score(new_op, init_A, init_B, N); if (new_score - score > diff_threshold) { op = move(new_op); score = new_score; } } cout << op.size() << endl; for (auto& p : op) { cout << p.first << " " << p.second << endl; } // cout << "Score: " << calc_true_score(op, init_A, init_B, N) << endl; return 0; }