結果
問題 | No.382 シャイな人たち (2) |
ユーザー | kopricky |
提出日時 | 2019-04-25 08:05:31 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 1,444 ms / 8,000 ms |
コード長 | 12,646 bytes |
コンパイル時間 | 2,425 ms |
コンパイル使用メモリ | 192,676 KB |
実行使用メモリ | 6,820 KB |
最終ジャッジ日時 | 2024-11-17 14:04:40 |
合計ジャッジ時間 | 29,009 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 | 1,444 ms
6,820 KB |
testcase_01 | AC | 1,366 ms
6,820 KB |
testcase_02 | AC | 1,256 ms
6,820 KB |
testcase_03 | AC | 1,208 ms
6,820 KB |
testcase_04 | AC | 1,192 ms
6,816 KB |
testcase_05 | AC | 1,299 ms
6,816 KB |
testcase_06 | AC | 1,135 ms
6,820 KB |
testcase_07 | AC | 1,257 ms
6,820 KB |
testcase_08 | AC | 1,077 ms
6,820 KB |
testcase_09 | AC | 1,134 ms
6,816 KB |
testcase_10 | AC | 1,189 ms
6,820 KB |
testcase_11 | AC | 1,076 ms
6,816 KB |
testcase_12 | AC | 1,079 ms
6,816 KB |
testcase_13 | AC | 1,193 ms
6,820 KB |
testcase_14 | AC | 1,284 ms
6,820 KB |
testcase_15 | AC | 1,171 ms
6,816 KB |
testcase_16 | AC | 1,186 ms
6,820 KB |
testcase_17 | AC | 1,001 ms
6,820 KB |
testcase_18 | AC | 1,278 ms
6,820 KB |
testcase_19 | AC | 1,047 ms
6,816 KB |
testcase_20 | AC | 2 ms
6,820 KB |
ソースコード
#include <bits/stdc++.h> #pragma GCC optimize("O3") #pragma GCC target("avx") #define ll long long #define INF 1000000005 #define MOD 1000000007 #define EPS 1e-10 #define rep(i,n) for(int i=0;i<(int)(n);++i) #define rrep(i,n) for(int i=(int)(n)-1;i>=0;--i) #define srep(i,s,t) for(int i=(int)(s);i<(int)(t);++i) #define each(a,b) for(auto& (a): (b)) #define all(v) (v).begin(),(v).end() #define len(v) (int)(v).size() #define zip(v) sort(all(v)),v.erase(unique(all(v)),v.end()) #define cmx(x,y) x=max(x,y) #define cmn(x,y) x=min(x,y) #define fi first #define se second #define pb push_back #define show(x) cout<<#x<<" = "<<(x)<<endl #define spair(p) cout<<#p<<": "<<p.fi<<" "<<p.se<<endl #define sar(a,n) cout<<#a<<":";rep(pachico,n)cout<<" "<<a[pachico];cout<<endl #define svec(v) cout<<#v<<":";rep(pachico,v.size())cout<<" "<<v[pachico];cout<<endl #define svecp(v) cout<<#v<<":";each(pachico,v)cout<<" {"<<pachico.first<<":"<<pachico.second<<"}";cout<<endl #define sset(s) cout<<#s<<":";each(pachico,s)cout<<" "<<pachico;cout<<endl #define smap(m) cout<<#m<<":";each(pachico,m)cout<<" {"<<pachico.first<<":"<<pachico.second<<"}";cout<<endl using namespace std; typedef pair<int,int> P; typedef pair<ll,ll> pll; typedef vector<int> vi; typedef vector<vi> vvi; typedef vector<ll> vl; typedef vector<vl> vvl; typedef vector<double> vd; typedef vector<P> vp; typedef vector<string> vs; const int MAX_N = 100005; template<typename T> class ListIterator; // 常に不変なイテレーターが欲しい場合に使う template<typename T> class List { public: using iterator = ListIterator<T>; private: struct block { int prev, next; T value; block(){} block(T value_) : value(value_){} block(int prev_, int next_) : prev(prev_), next(next_){} }; int N, sz; vector<block> container; friend ListIterator<T>; public: // 添字 next_index の要素の前に添字 now_index の要素を挿入 iterator insert(int next_index, int now_index){ sz++; auto& nw = container[now_index]; auto& nx = container[next_index]; nw.prev = nx.prev, nw.next = next_index; container[nx.prev].next = now_index, nx.prev = now_index; return iterator(this, now_index); } // 添字 index の値を削除 → 次の要素の iterator を返す iterator erase(int index){ sz--; auto& cur = container[index]; container[cur.prev].next = cur.next, container[cur.next].prev = cur.prev; return iterator(this, cur.next); } public: friend ostream& operator<< (ostream& os, List& ls){ for(auto& val : ls){ os << val << ' '; } return os; } const T& operator[](size_t index) const { return container[index].value; } T& operator[](size_t index){ return container[index].value; } size_t size(){ return sz; } bool empty(){ return size() == 0; } T& front(){ return container[container[N].next].value; } T& back(){ return container[container[N].prev].value; } iterator begin(){ return iterator(this, container[N].next); } iterator end(){ return iterator(this, N); } iterator insert(const iterator& itr, int index){ return insert(itr.index, index); } iterator erase(const iterator& itr){ return erase(itr.index); } iterator push_back(){ return insert(N, container[N].prev+1); } void pop_back(){ erase(container[N].prev); } void index_clear(){ N = sz = 0, container = {(block){0, 0}}; } void clear(){ index_clear(); container.clear(); } public: List() : N(0), sz(0), container({(block){0, 0}}){} List(int _N) : container(_N + 1){ build(); } List(const List& ls): N(ls.N), sz(ls.sz), container(ls.container){} List& operator=(const List& ls){ container = ls.container; build(); return *this; } List& operator=(const List&& ls) noexcept { container = ls.container; build(); return *this; } iterator push_back(T val){ N++, sz++; container[0].prev = container.back().next = N, container.back().value = val; container.emplace_back(N-1, 0); return iterator(this, N-1); } void build(){ N = sz = (int)container.size() - 1; for(int i = 0; i <= N; i++) container[i].prev = i-1, container[i].next = i+1; container[0].prev = N, container[N].next = 0; } }; template<typename T> class ListIterator : public std::iterator<bidirectional_iterator_tag, T, ptrdiff_t, T*, T&>{ private: friend List<T>; List<T>* ls_ptr; int index; private: ListIterator(List<T>* ls, int _index) : ls_ptr(ls), index(_index){} public: ListIterator(){} ListIterator(const ListIterator& itr){ ls_ptr = itr.ls_ptr, index = itr.index; } explicit operator int() const noexcept { return index; } ListIterator& operator=(const ListIterator& itr) & { ls_ptr = itr.ls_ptr, index = itr.index; return *this; } ListIterator& operator=(ListIterator&& itr) & noexcept { ls_ptr = itr.ls_ptr, index = itr.index; return *this; } T& operator*() const { return ls_ptr->container[index].value; } T* operator->() const { return &ls_ptr->container[index].value; } ListIterator& operator++(){ index = ls_ptr->container[index].next; return *this; } ListIterator operator++(int){ ListIterator res = *this; index = ls_ptr->container[index].next; return res; } ListIterator& operator--(){ index = ls_ptr->container[index].prev; return *this; }; ListIterator operator--(int){ ListIterator res = *this; index = ls_ptr->container[index].prev; return res; }; bool operator==(const ListIterator& itr) const { return !(*this != itr); }; bool operator!=(const ListIterator& itr) const { return this->ls_ptr != itr.ls_ptr || this->index != itr.index; } friend void swap(const ListIterator<T>& itr1, const ListIterator<T>& itr2){ ListIterator<T> tmp = itr1; itr1 = itr2, itr2 = itr1; }; }; // 多重辺はなし class MVC { private: struct edge { int to, rev; }; struct info { // from から to 番目に出ている辺が(を) next の前から消えた(に入れる) int from, to, next; info(int ag1, int ag2, int ag3) : from(ag1), to(ag2), next(ag3){} }; using LL = unsigned __int128; int V, rem_edge_size, fp_size; vector<List<edge> > G; List<int> rem_ver; vector<int> cand; vector<vector<info> > edge_info; LL small_deg_ver, use_ver; int get_first_element(LL num){ int x = __builtin_ffsll(num & (((LL)1 << 64) - 1)); int y = __builtin_ffsll((num >> 64) & (((LL)1 << 64) - 1)); return x ? (x - 1) : (y + 63); } bool push_cand(int u, int& add_size){ add_size++, cand.push_back(u); return (int)cand.size() >= ans_size; } bool erase(int u, bool use, bool alr_use, int& add_size, vector<pair<int, int> >& erase_ver){ if(use && !alr_use){ if(push_cand(u, add_size)) return true; } erase_ver.emplace_back(u, rem_ver.erase(u)); for(auto& e : G[u]){ edge_info[u].emplace_back(e.to, e.rev, (int)G[e.to].erase(e.rev)), rem_edge_size--; if(G[e.to].empty()) erase_ver.emplace_back(e.to, rem_ver.erase(e.to)); if(!use){ if(use_ver >> e.to & 1) continue; if(push_cand(e.to, add_size)) return true; if(!G[e.to].empty()) use_ver |= (LL)1 << e.to; }else{ if((int)G[e.to].size() == 1 && !(use_ver >> e.to & 1)) small_deg_ver |= (LL)1 << e.to; } } return false; } bool erase_rec_set(LL& st, bool flag, int& add_size, vector<pair<int, int> >& erase_ver){ while(st != 0){ int v = get_first_element(st); st ^= (LL)1 << v; if(G[v].empty()) continue; if(erase(v, flag, flag, add_size, erase_ver)) return true; } return false; } bool reset(){ small_deg_ver = use_ver = 0; return true; } bool erase_rec(int u, bool use, int& add_size, vector<pair<int, int> >& erase_ver){ if(erase(u, use, false, add_size, erase_ver)) return reset(); while(small_deg_ver != 0 || use_ver != 0){ if(erase_rec_set(small_deg_ver, false, add_size, erase_ver)) return reset(); if(erase_rec_set(use_ver, true, add_size, erase_ver)) return reset(); } return false; } bool preprocessing(int K, int& add_size, vector<pair<int, int> >& erase_ver){ for(int u : rem_ver){ if((int)G[u].size() > K){ if(!erase_rec(u, true, add_size, erase_ver)) return true; } } return false; } void postprocessing(int K, int add_size, vector<pair<int, int> >& erase_ver){ if(K == fp_size) return; for(int i = 0; i < add_size; i++){ cand.pop_back(); } for(int i = (int)erase_ver.size() - 1; i >= 0; i--){ auto& p = erase_ver[i]; while(!edge_info[p.first].empty()){ auto& dat = edge_info[p.first].back(); G[dat.from].insert(dat.next, dat.to), rem_edge_size++; edge_info[p.first].pop_back(); } rem_ver.insert(p.second, p.first); } } bool check(){ if(rem_edge_size == 0){ if((int)cand.size() < ans_size){ ans_size = (int)cand.size(), ans_set = cand; } return true; } return rem_ver.empty(); } void transition(int K, int next_ver, bool use){ int pl_add_size = 0; vector<pair<int, int> > pl_erase_ver; if(erase_rec(next_ver, use, pl_add_size, pl_erase_ver)){ return postprocessing(K-1, pl_add_size, pl_erase_ver); } if(!check()) judge(K-1); return postprocessing(K-1, pl_add_size, pl_erase_ver); } int find_max_degree_ver(){ int max_deg = -1, next_ver = -1; for(int v : rem_ver){ if((int)G[v].size() > max_deg) max_deg = (int)G[v].size(), next_ver = v; } if(2 * rem_edge_size > max_deg * (int)rem_ver.size()) return -1; return next_ver; } void judge(int K){ int add_size = 0; vector<pair<int, int> > erase_ver; if(preprocessing(K, add_size, erase_ver)) return postprocessing(K, add_size, erase_ver); if(check()) return postprocessing(K, add_size, erase_ver); int next_ver = find_max_degree_ver(); if(next_ver < 0) return postprocessing(K, add_size, erase_ver); // 使う場合 if((int)G[next_ver].size() > 1) transition(K, next_ver, true); // 使わない場合 if((int)cand.size() + (int)G[next_ver].size() < ans_size) transition(K, next_ver, false); return postprocessing(K, add_size, erase_ver); } public: vector<int> ans_set; int ans_size; MVC(int node_size) : V(node_size), rem_edge_size(0), G(V), rem_ver(V), edge_info(V), small_deg_ver(0), use_ver(0){ for(int i = 0; i < V; i++) rem_ver[i] = i; } void add_edge(int u, int v){ G[u].push_back((edge){v, (int)G[v].size()}); G[v].push_back((edge){u, (int)G[u].size() - 1}); rem_edge_size++; } bool solve(int K){ fp_size = K, ans_size = fp_size + 1; judge(fp_size); return ans_size <= fp_size; } }; bool used[121]; int main() { cin.tie(0); ios::sync_with_stdio(false); ll S; cin >> S; S = S * 12345LL % 1000003LL; int n = (S % 120) + 2, m = 0; MVC mvc(n); S = S * 12345LL % 1000003LL; ll P = S; rep(i,n){ srep(j,i+1,n){ S = S * 12345LL % 1000003LL; if(S >= P){ mvc.add_edge(i, j); m++; } } } if(m == 0){ cout << "-1\n"; }else{ mvc.solve(n); cout << n - mvc.ans_size + 1 << "\n"; each(v, mvc.ans_set){ used[v] = true; } vector<int> ans; rep(i,n){ if(!used[i]) ans.pb(i); } rep(i,len(ans)-1){ cout << ans[i] + 1 << " "; } cout << ans.back() + 1 << "\n"; } return 0; }