結果
問題 | No.1744 Selfish Spies 1 (à la Princess' Perfectionism) |
ユーザー | hashiryo |
提出日時 | 2024-02-18 20:09:34 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 25 ms / 5,000 ms |
コード長 | 5,297 bytes |
コンパイル時間 | 2,643 ms |
コンパイル使用メモリ | 215,696 KB |
実行使用メモリ | 6,820 KB |
最終ジャッジ日時 | 2024-09-29 00:54:23 |
合計ジャッジ時間 | 3,874 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge4 |
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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
6,820 KB |
testcase_01 | AC | 2 ms
6,816 KB |
testcase_02 | AC | 1 ms
6,816 KB |
testcase_03 | AC | 2 ms
6,816 KB |
testcase_04 | AC | 1 ms
6,820 KB |
testcase_05 | AC | 1 ms
6,816 KB |
testcase_06 | AC | 1 ms
6,820 KB |
testcase_07 | AC | 1 ms
6,816 KB |
testcase_08 | AC | 1 ms
6,816 KB |
testcase_09 | AC | 2 ms
6,816 KB |
testcase_10 | AC | 2 ms
6,816 KB |
testcase_11 | AC | 1 ms
6,816 KB |
testcase_12 | AC | 2 ms
6,820 KB |
testcase_13 | AC | 2 ms
6,816 KB |
testcase_14 | AC | 2 ms
6,816 KB |
testcase_15 | AC | 2 ms
6,820 KB |
testcase_16 | AC | 2 ms
6,820 KB |
testcase_17 | AC | 2 ms
6,816 KB |
testcase_18 | AC | 2 ms
6,820 KB |
testcase_19 | AC | 2 ms
6,820 KB |
testcase_20 | AC | 2 ms
6,816 KB |
testcase_21 | AC | 1 ms
6,816 KB |
testcase_22 | AC | 1 ms
6,820 KB |
testcase_23 | AC | 2 ms
6,816 KB |
testcase_24 | AC | 6 ms
6,820 KB |
testcase_25 | AC | 2 ms
6,816 KB |
testcase_26 | AC | 2 ms
6,820 KB |
testcase_27 | AC | 3 ms
6,820 KB |
testcase_28 | AC | 22 ms
6,816 KB |
testcase_29 | AC | 3 ms
6,816 KB |
testcase_30 | AC | 2 ms
6,816 KB |
testcase_31 | AC | 3 ms
6,820 KB |
testcase_32 | AC | 3 ms
6,816 KB |
testcase_33 | AC | 22 ms
6,816 KB |
testcase_34 | AC | 22 ms
6,816 KB |
testcase_35 | AC | 25 ms
6,820 KB |
testcase_36 | AC | 25 ms
6,820 KB |
testcase_37 | AC | 25 ms
6,816 KB |
testcase_38 | AC | 23 ms
6,816 KB |
ソースコード
// #define _GLIBCXX_DEBUG #include <bits/stdc++.h> // clang-format off std::ostream&operator<<(std::ostream&os,std::int8_t x){return os<<(int)x;} std::ostream&operator<<(std::ostream&os,std::uint8_t x){return os<<(int)x;} std::ostream&operator<<(std::ostream&os,const __int128_t &v){if(!v)os<<"0";__int128_t tmp=v<0?(os<<"-",-v):v;std::string s;while(tmp)s+='0'+(tmp%10),tmp/=10;return std::reverse(s.begin(),s.end()),os<<s;} std::ostream&operator<<(std::ostream&os,const __uint128_t &v){if(!v)os<<"0";__uint128_t tmp=v;std::string s;while(tmp)s+='0'+(tmp%10),tmp/=10;return std::reverse(s.begin(),s.end()),os<<s;} #define checkpoint() (void(0)) #define debug(...) (void(0)) #define debugArray(x,n) (void(0)) #define debugMatrix(x,h,w) (void(0)) // clang-format on #include <type_traits> #define _LR(name, IT, CT) \ template <class T> struct name { \ using Iterator= typename std::vector<T>::IT; \ Iterator bg, ed; \ Iterator begin() const { return bg; } \ Iterator end() const { return ed; } \ size_t size() const { return std::distance(bg, ed); } \ CT &operator[](int i) const { return bg[i]; } \ } _LR(ListRange, iterator, const T); _LR(ConstListRange, const_iterator, const T); #undef _LR template <class T> struct CSRArray { std::vector<T> dat; std::vector<int> p; size_t size() const { return p.size() - 1; } ListRange<T> operator[](int i) { return {dat.begin() + p[i], dat.begin() + p[i + 1]}; } ConstListRange<T> operator[](int i) const { return {dat.cbegin() + p[i], dat.cbegin() + p[i + 1]}; } }; template <template <class> class F, class T> std::enable_if_t<std::disjunction_v<std::is_same<F<T>, ListRange<T>>, std::is_same<F<T>, ConstListRange<T>>, std::is_same<F<T>, CSRArray<T>>>, std::ostream &> operator<<(std::ostream &os, const F<T> &r) { os << '['; for (int _= 0, __= r.size(); _ < __; ++_) os << (_ ? ", " : "") << r[_]; return os << ']'; } class DulmageMendelsohn { std::vector<int> blg[2], mate[2], pos[2]; std::vector<std::array<int, 2>> es; public: DulmageMendelsohn(int L, int R): blg{std::vector(L, -3), std::vector(R, -3)} {} void add_edge(int l, int r) { es.push_back({l, r}); } void build() { const int n[]= {(int)blg[0].size(), (int)blg[1].size()}; std::vector<int> g[2], rt, pre, que(std::max(n[0], n[1])); for (int b= 2; b--;) g[b].resize(es.size()), pos[b].resize(n[b] + 1), mate[b].assign(n[b], -1); for (auto [l, r]: es) ++pos[0][l], ++pos[1][r]; for (int b= 2; b--;) std::partial_sum(pos[b].begin(), pos[b].end(), pos[b].begin()); for (auto [l, r]: es) g[0][--pos[0][l]]= r, g[1][--pos[1][r]]= l; int t= 0, k= 0; for (bool upd= true; upd; t= 0) { upd= false, rt.assign(n[0], -1), pre.assign(n[0], -1); for (int l= n[0]; l--;) if (mate[0][l] == -1) que[t++]= rt[l]= pre[l]= l; for (int i= 0; i < t; ++i) if (int l= que[i]; mate[0][rt[l]] == -1) for (int j= pos[0][l], r, nl; j < pos[0][l + 1]; ++j) { if (nl= mate[1][r= g[0][j]]; nl == -1) { for (upd= true; r != -1; l= pre[l]) mate[1][r]= l, std::swap(mate[0][l], r); break; } if (pre[nl] == -1) rt[que[t++]= nl]= rt[pre[nl]= l]; } } for (int s= n[0], v; s--;) if (rt[s] != -1) if (blg[0][s]= -1, v= mate[0][s]; v != -1) blg[1][v]= -1; for (int s= n[1]; s--;) if (mate[1][s] == -1) blg[1][que[t++]= s]= 0; for (int i= 0; i < t; ++i) for (int v= que[i], j= pos[1][v], u, w; j < pos[1][v + 1]; ++j) if (blg[0][u= g[1][j]] == -3) if (w= mate[0][u], blg[0][u]= 0; w != -1 && blg[1][w] == -3) blg[1][que[t++]= w]= 0; pre.assign(pos[0].begin(), pos[0].begin() + n[0]), t= 0; for (int s= n[0], v; s--;) if (blg[0][s] == -3) for (blg[0][v= s]= -4; v >= 0;) { if (pre[v] == pos[0][v + 1]) rt[t++]= v, v= blg[0][v]; else if (int w= mate[1][g[0][pre[v]++]]; blg[0][w] == -3) blg[0][w]= v, v= w; } for (int i= 0, e= 0; t--;) if (int s= rt[t], p= mate[0][s]; blg[1][p] == -3) for (que[e++]= p, blg[0][s]= blg[1][p]= ++k; i < e; ++i) for (int v= que[i], j= pos[1][v]; j < pos[1][v + 1]; ++j) if (int u= g[1][j], w= mate[0][u]; blg[1][w] == -3) que[e++]= w, blg[0][u]= blg[1][w]= k; ++k; for (int b= 2, s; b--;) { for (pos[b].assign(k + 2, 0), s= n[b]; s--; ++pos[b][blg[b][s]]) if (blg[b][s] == -1) blg[b][s]= k; for (std::partial_sum(pos[b].begin(), pos[b].end(), pos[b].begin()), s= n[b]; s--;) mate[b][--pos[b][blg[b][s]]]= s; } } int component_num() const { return pos[0].size() - 1; } int left_belong(int l) const { return blg[0][l]; } int right_belong(int r) const { return blg[1][r]; } ConstListRange<int> left_block(int k) const { return {mate[0].cbegin() + pos[0][k], mate[0].cbegin() + pos[0][k + 1]}; } ConstListRange<int> right_block(int k) const { return {mate[1].cbegin() + pos[1][k], mate[1].cbegin() + pos[1][k + 1]}; } }; using namespace std; signed main() { cin.tie(0); ios::sync_with_stdio(0); int N, M, L; cin >> N >> M >> L; DulmageMendelsohn dm(N, M); int S[L], T[L]; for (int i= 0; i < L; ++i) { cin >> S[i] >> T[i]; dm.add_edge(--S[i], --T[i]); } dm.build(); int k= dm.component_num(); for (int i= 0; i < L; ++i) { int l= dm.left_belong(S[i]), r= dm.right_belong(T[i]); cout << (l != r || l == 0 || r == k - 1 || dm.left_block(l).size() >= 2 ? "Yes" : "No") << '\n'; } return 0; }