結果
問題 | No.1308 ジャンプビーコン |
ユーザー | やむなく |
提出日時 | 2020-12-01 23:28:43 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 2,807 bytes |
コンパイル時間 | 8,161 ms |
コンパイル使用メモリ | 332,236 KB |
実行使用メモリ | 5,376 KB |
最終ジャッジ日時 | 2024-09-15 06:37:11 |
合計ジャッジ時間 | 8,826 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge6 |
(要ログイン)
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 | WA | - |
testcase_01 | WA | - |
testcase_02 | WA | - |
testcase_03 | WA | - |
testcase_04 | WA | - |
testcase_05 | WA | - |
testcase_06 | WA | - |
testcase_07 | WA | - |
testcase_08 | WA | - |
testcase_09 | WA | - |
testcase_10 | WA | - |
testcase_11 | WA | - |
testcase_12 | WA | - |
testcase_13 | WA | - |
testcase_14 | WA | - |
testcase_15 | WA | - |
testcase_16 | WA | - |
testcase_17 | WA | - |
testcase_18 | WA | - |
testcase_19 | WA | - |
testcase_20 | WA | - |
testcase_21 | WA | - |
testcase_22 | WA | - |
testcase_23 | WA | - |
testcase_24 | WA | - |
testcase_25 | WA | - |
testcase_26 | WA | - |
testcase_27 | WA | - |
testcase_28 | WA | - |
testcase_29 | WA | - |
testcase_30 | WA | - |
testcase_31 | WA | - |
testcase_32 | WA | - |
testcase_33 | WA | - |
testcase_34 | WA | - |
testcase_35 | WA | - |
testcase_36 | WA | - |
testcase_37 | WA | - |
testcase_38 | WA | - |
testcase_39 | WA | - |
ソースコード
// // validator (writer) // #include <bits/stdc++.h> #include "testlib.h" using namespace std; const int MIN_N = 2; const int MAX_N = 3000; const int MIN_Q = 2; const int MAX_Q = 3000; const int MIN_C = 1; const int MAX_C = 1000000000; const int MIN_L = 1; const int MAX_L = 1000000000; // from ACL struct dsu { public: dsu() : _n(0) {} dsu(int n) : _n(n), parent_or_size(n, -1) {} int merge(int a, int b) { assert(0 <= a && a < _n); assert(0 <= b && b < _n); int x = leader(a), y = leader(b); if (x == y) return x; if (-parent_or_size[x] < -parent_or_size[y]) std::swap(x, y); parent_or_size[x] += parent_or_size[y]; parent_or_size[y] = x; return x; } bool same(int a, int b) { assert(0 <= a && a < _n); assert(0 <= b && b < _n); return leader(a) == leader(b); } int leader(int a) { assert(0 <= a && a < _n); if (parent_or_size[a] < 0) return a; return parent_or_size[a] = leader(parent_or_size[a]); } int size(int a) { assert(0 <= a && a < _n); return -parent_or_size[leader(a)]; } std::vector<std::vector<int>> groups() { std::vector<int> leader_buf(_n), group_size(_n); for (int i = 0; i < _n; i++) { leader_buf[i] = leader(i); group_size[leader_buf[i]]++; } std::vector<std::vector<int>> result(_n); for (int i = 0; i < _n; i++) { result[i].reserve(group_size[i]); } for (int i = 0; i < _n; i++) { result[leader_buf[i]].push_back(i); } result.erase(std::remove_if( result.begin(), result.end(), [&](const std::vector<int> &v) { return v.empty(); }), result.end()); return result; } private: int _n; // root node: -1 * component size // otherwise: parent std::vector<int> parent_or_size; }; int main() { registerValidation(); int n = inf.readInt(MIN_N, MAX_N); inf.readSpace(); int q = inf.readInt(MIN_Q, MAX_Q); inf.readSpace(); int c = inf.readInt(MIN_C, MAX_C); inf.readEoln(); dsu uf(n); for (int i = 0; i < n - 1; i++) { int u = inf.readInt(1, n); inf.readSpace(); int v = inf.readInt(1, n); inf.readSpace(); int l = inf.readInt(MIN_L, MAX_L); inf.readEoln(); u--, v--; ensure(!uf.same(u, v)); uf.merge(u, v); } int pre = -1; for (int i = 0; i < q; i++) { int x = inf.readInt(1, n); if (i < q - 1) inf.readSpace(); else inf.readEoln(); ensure(x != pre); pre = x; } inf.readEof(); return 0; }