結果
問題 | No.1153 ねこちゃんゲーム |
ユーザー | hitonanode |
提出日時 | 2020-08-08 21:34:19 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 434 ms / 2,500 ms |
コード長 | 6,582 bytes |
コンパイル時間 | 2,683 ms |
コンパイル使用メモリ | 218,192 KB |
実行使用メモリ | 92,416 KB |
最終ジャッジ日時 | 2024-10-02 07:33:18 |
合計ジャッジ時間 | 26,675 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge3 |
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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 | 2 ms
5,248 KB |
testcase_01 | AC | 3 ms
5,248 KB |
testcase_02 | AC | 4 ms
5,248 KB |
testcase_03 | AC | 4 ms
5,248 KB |
testcase_04 | AC | 4 ms
5,248 KB |
testcase_05 | AC | 4 ms
5,248 KB |
testcase_06 | AC | 4 ms
5,248 KB |
testcase_07 | AC | 327 ms
19,200 KB |
testcase_08 | AC | 325 ms
18,560 KB |
testcase_09 | AC | 318 ms
19,304 KB |
testcase_10 | AC | 325 ms
18,496 KB |
testcase_11 | AC | 318 ms
19,200 KB |
testcase_12 | AC | 318 ms
19,200 KB |
testcase_13 | AC | 330 ms
18,404 KB |
testcase_14 | AC | 324 ms
19,176 KB |
testcase_15 | AC | 323 ms
18,544 KB |
testcase_16 | AC | 336 ms
19,072 KB |
testcase_17 | AC | 322 ms
19,200 KB |
testcase_18 | AC | 330 ms
18,560 KB |
testcase_19 | AC | 344 ms
19,072 KB |
testcase_20 | AC | 317 ms
18,520 KB |
testcase_21 | AC | 311 ms
19,200 KB |
testcase_22 | AC | 308 ms
19,328 KB |
testcase_23 | AC | 320 ms
18,304 KB |
testcase_24 | AC | 313 ms
19,072 KB |
testcase_25 | AC | 324 ms
18,560 KB |
testcase_26 | AC | 308 ms
19,200 KB |
testcase_27 | AC | 434 ms
92,416 KB |
testcase_28 | AC | 424 ms
60,096 KB |
testcase_29 | AC | 419 ms
77,184 KB |
testcase_30 | AC | 406 ms
65,792 KB |
testcase_31 | AC | 418 ms
72,448 KB |
testcase_32 | AC | 258 ms
28,532 KB |
testcase_33 | AC | 266 ms
28,660 KB |
testcase_34 | AC | 268 ms
28,532 KB |
testcase_35 | AC | 279 ms
28,648 KB |
testcase_36 | AC | 264 ms
28,524 KB |
testcase_37 | AC | 178 ms
29,192 KB |
testcase_38 | AC | 167 ms
29,060 KB |
testcase_39 | AC | 171 ms
29,060 KB |
testcase_40 | AC | 241 ms
29,060 KB |
testcase_41 | AC | 170 ms
29,056 KB |
ソースコード
#include <bits/stdc++.h> using namespace std; using lint = long long; using pint = pair<int, int>; using plint = pair<lint, lint>; struct fast_ios { fast_ios(){ cin.tie(nullptr); ios::sync_with_stdio(false); cout << fixed << setprecision(20); }; } fast_ios_; #define ALL(x) (x).begin(), (x).end() #define FOR(i, begin, end) for(int i=(begin),i##_end_=(end);i<i##_end_;i++) #define IFOR(i, begin, end) for(int i=(end)-1,i##_begin_=(begin);i>=i##_begin_;i--) #define REP(i, n) FOR(i,0,n) #define IREP(i, n) IFOR(i,0,n) template <typename T> void ndarray(vector<T> &vec, int len) { vec.resize(len); } template <typename T, typename... Args> void ndarray(vector<T> &vec, int len, Args... args) { vec.resize(len); for (auto &v : vec) ndarray(v, args...); } template <typename V, typename T> void ndfill(V &x, const T &val) { x = val; } template <typename V, typename T> void ndfill(vector<V> &vec, const T &val) { for (auto &v : vec) ndfill(v, val); } template <typename T> bool chmax(T &m, const T q) { if (m < q) {m = q; return true;} else return false; } template <typename T> bool chmin(T &m, const T q) { if (m > q) {m = q; return true;} else return false; } template <typename T1, typename T2> pair<T1, T2> operator+(const pair<T1, T2> &l, const pair<T1, T2> &r) { return make_pair(l.first + r.first, l.second + r.second); } template <typename T1, typename T2> pair<T1, T2> operator-(const pair<T1, T2> &l, const pair<T1, T2> &r) { return make_pair(l.first - r.first, l.second - r.second); } template <typename T> vector<T> srtunq(vector<T> vec) { sort(vec.begin(), vec.end()), vec.erase(unique(vec.begin(), vec.end()), vec.end()); return vec; } template <typename T> istream &operator>>(istream &is, vector<T> &vec) { for (auto &v : vec) is >> v; return is; } template <typename... T> istream &operator>>(istream &is, tuple<T...> &tpl) { std::apply([&is](auto &&... args) { ((is >> args), ...);}, tpl); return is; } template <typename T> ostream &operator<<(ostream &os, const vector<T> &vec) { os << '['; for (auto v : vec) os << v << ','; os << ']'; return os; } template <typename... T> ostream &operator<<(ostream &os, const tuple<T...> &tpl) { std::apply([&os](auto &&... args) { ((os << args << ','), ...);}, tpl); return os; } template <typename T> ostream &operator<<(ostream &os, const deque<T> &vec) { os << "deq["; for (auto v : vec) os << v << ','; os << ']'; return os; } template <typename T> ostream &operator<<(ostream &os, const set<T> &vec) { os << '{'; for (auto v : vec) os << v << ','; os << '}'; return os; } template <typename T> ostream &operator<<(ostream &os, const unordered_set<T> &vec) { os << '{'; for (auto v : vec) os << v << ','; os << '}'; return os; } template <typename T> ostream &operator<<(ostream &os, const multiset<T> &vec) { os << '{'; for (auto v : vec) os << v << ','; os << '}'; return os; } template <typename T> ostream &operator<<(ostream &os, const unordered_multiset<T> &vec) { os << '{'; for (auto v : vec) os << v << ','; os << '}'; return os; } template <typename T1, typename T2> ostream &operator<<(ostream &os, const pair<T1, T2> &pa) { os << '(' << pa.first << ',' << pa.second << ')'; return os; } template <typename TK, typename TV> ostream &operator<<(ostream &os, const map<TK, TV> &mp) { os << '{'; for (auto v : mp) os << v.first << "=>" << v.second << ','; os << '}'; return os; } template <typename TK, typename TV> ostream &operator<<(ostream &os, const unordered_map<TK, TV> &mp) { os << '{'; for (auto v : mp) os << v.first << "=>" << v.second << ','; os << '}'; return os; } #ifdef HITONANODE_LOCAL #define dbg(x) cerr << #x << " = " << (x) << " (L" << __LINE__ << ") " << __FILE__ << endl #else #define dbg(x) #endif int mex(vector<int> v) { sort(v.begin(), v.end()); int ret = 0; for (auto x : v) { if (x == ret) ret++; if (x > ret) break; } return ret; } struct rand_int_ { using lint = long long; mt19937 mt; rand_int_() : mt(chrono::steady_clock::now().time_since_epoch().count()) {} lint operator()(lint x) { return this->operator()(0, x); } // [0, x) lint operator()(lint l, lint r) { uniform_int_distribution<lint> d(l, r - 1); return d(mt); } } rnd; int main() { int N, M; cin >> N >> M; vector<int> A(M); cin >> A; for (auto &a : A) a--; vector<vector<int>> to(N); int root = rnd(N); REP(_, N - 1) { int u, v; cin >> u >> v; u--, v--; to[u].emplace_back(v); to[v].emplace_back(u); } vector<int> gchild(N), gpar(N, 1e9), grundy(N), par(N, -1); auto gdfs = [&](auto &&gdfs, int now) -> void { vector<int> gs; for (auto nxt : to[now]) if (nxt != par[now]) { par[nxt] = now; gdfs(gdfs, nxt); gs.emplace_back(gchild[nxt]); } gchild[now] = mex(gs); }; gdfs(gdfs, root); auto pardfs = [&](auto &&pardfs, int now, int prv) -> void { vector<int> cnt(to[now].size() + 3); cnt[min<int>(cnt.size() - 1, gpar[now])]++; for (auto nxt : to[now]) if (nxt != prv) { int g = min<int>(cnt.size() - 1, gchild[nxt]); cnt[g]++; } set<int> ok; REP(i, cnt.size()) if (!cnt[i]) ok.insert(i); dbg(now); dbg(to[now]); dbg(cnt); dbg(ok); grundy[now] = *ok.begin(); for (auto nxt : to[now]) if (nxt != prv) { int g = min<int>(cnt.size() - 1, gchild[nxt]); cnt[g]--; if (!cnt[g]) ok.insert(g); gpar[nxt] = *ok.begin(); cnt[g]++; ok.erase(g); } for (auto nxt : to[now]) if (nxt != prv) pardfs(pardfs, nxt, now); }; pardfs(pardfs, root, -1); dbg(gchild); dbg(gpar); dbg(grundy); int XOR = 0; for (auto a : A) { XOR ^= grundy[a]; } if (XOR) { vector<int> checked(N); REP(i, A.size()) { int r = A[i]; if (checked[r]) continue; checked[r] = 1; for (auto s : to[r]) { if (par[r] == s and (grundy[r] ^ gpar[r]) == XOR) { cout << i + 1 << ' ' << s + 1 << '\n'; return 0; } if (par[r] != s and (grundy[r] ^ gchild[s]) == XOR) { cout << i + 1 << ' ' << s + 1 << '\n'; return 0; } } } } else puts("-1 -1"); }