結果
問題 | No.382 シャイな人たち (2) |
ユーザー | kopricky |
提出日時 | 2018-12-30 14:28:55 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 2,040 ms / 8,000 ms |
コード長 | 12,344 bytes |
コンパイル時間 | 2,139 ms |
コンパイル使用メモリ | 194,132 KB |
実行使用メモリ | 5,248 KB |
最終ジャッジ日時 | 2024-10-07 06:12:03 |
合計ジャッジ時間 | 38,797 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 | 2,040 ms
5,248 KB |
testcase_01 | AC | 1,907 ms
5,248 KB |
testcase_02 | AC | 1,747 ms
5,248 KB |
testcase_03 | AC | 1,702 ms
5,248 KB |
testcase_04 | AC | 1,697 ms
5,248 KB |
testcase_05 | AC | 1,823 ms
5,248 KB |
testcase_06 | AC | 1,576 ms
5,248 KB |
testcase_07 | AC | 1,760 ms
5,248 KB |
testcase_08 | AC | 1,521 ms
5,248 KB |
testcase_09 | AC | 1,615 ms
5,248 KB |
testcase_10 | AC | 1,669 ms
5,248 KB |
testcase_11 | AC | 1,466 ms
5,248 KB |
testcase_12 | AC | 1,502 ms
5,248 KB |
testcase_13 | AC | 1,676 ms
5,248 KB |
testcase_14 | AC | 1,807 ms
5,248 KB |
testcase_15 | AC | 1,728 ms
5,248 KB |
testcase_16 | AC | 1,678 ms
5,248 KB |
testcase_17 | AC | 1,412 ms
5,248 KB |
testcase_18 | AC | 1,782 ms
5,248 KB |
testcase_19 | AC | 1,447 ms
5,248 KB |
testcase_20 | AC | 1 ms
5,248 KB |
ソースコード
#include <bits/stdc++.h> #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: int N, sz; vector<int> prev, next; vector<T> 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++; prev[now_index] = prev[next_index], next[now_index] = next_index; next[prev[next_index]] = now_index, prev[next_index] = 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--; next[prev[index]] = next[index], prev[next[index]] = prev[index]; return iterator(this, next[index]); } 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]; } T& operator[](size_t index){ return container[index]; } size_t size(){ return sz; } bool empty(){ return size() == 0; } T& front(){ return container[next[N]]; } T& back(){ return container[prev[N]]; } iterator begin(){ return iterator(this, next[N]); } 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, prev[N]+1); } void pop_back(){ erase(prev[N]); } void index_clear(){ N = sz = 0, prev = next = {0}; } void clear(){ index_clear(); container.clear(); } public: List() : N(0), sz(0), prev({0}), next({0}){} List(int _N) : container(_N){ build(); } List(int _N, T val) : container(_N, val){ build(); } List(const List& ls): N(ls.N), sz(ls.sz), prev(ls.prev), next(ls.next), container(ls.container){} List(const vector<T>& vec) : container(vec){ build(); } List& operator=(const List& ls){ container = ls.container; build(); return *this; } List& operator=(const vector<T>& vec){ container = vec; build(); return *this; } List& operator=(const List&& ls) noexcept { container = ls.container; build(); return *this; } List(initializer_list<T> vals) : container(vals.begin(), vals.end()){ build(); } iterator push_back(T val){ N++, sz++; prev.push_back(N-1), prev[0] = N; next.back() = N, next.push_back(0); container.push_back(val); return iterator(this, N-1); } void build(){ N = sz = (int)container.size(); prev.resize(N+1), next.resize(N+1); iota(prev.begin(), prev.end(), -1), iota(next.begin(), next.end(), 1); prev[0] = N, next[N] = 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; } 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]; } T* operator->() const { return &ls_ptr->container[index]; } ListIterator& operator++(){ index = ls_ptr->next[index]; return *this; } ListIterator operator++(int){ ListIterator res = *this; index = ls_ptr->next[index]; return res; } ListIterator& operator--(){ index = ls_ptr->prev[index]; return *this; }; ListIterator operator--(int){ ListIterator res = *this; index = ls_ptr->prev[index]; 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){} }; int V, rem_edge_size, fp_size; vector<List<edge> > G; List<int> rem_ver; vector<int> cand, deg; vector<vector<info> > edge_info; set<int> small_deg_ver, use_ver; 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 false; } erase_ver.emplace_back(u, rem_ver.erase(u)); for(auto& e : G[u]){ edge_info[u].emplace_back(e.to, e.rev, G[e.to].erase(e.rev)); deg[e.to]--, rem_edge_size--; if(deg[e.to] == 0) erase_ver.emplace_back(e.to, rem_ver.erase(e.to)); if(!use){ if(use_ver.count(e.to) == 1) continue; if(!push_cand(e.to, add_size)) return false; if(deg[e.to] > 0) use_ver.insert(e.to); }else{ if(deg[e.to] == 1 && use_ver.count(e.to) == 0) small_deg_ver.insert(e.to); } } return true; } bool erase_rec_set(set<int>& st, bool flag, int& add_size, vector<pair<int, int> >& erase_ver){ while(!st.empty()){ int v = *st.begin(); st.erase(v); if(deg[v] == 0) continue; if(!erase(v, flag, flag, add_size, erase_ver)) return false; } return true; } bool reset(){ small_deg_ver.clear(), use_ver.clear(); return false; } 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.empty() || !use_ver.empty()){ 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 true; } bool preprocessing(int K, int& add_size, vector<pair<int, int> >& erase_ver){ for(int u : rem_ver){ if(deg[u] > K){ if(!erase_rec(u, true, add_size, erase_ver)) return false; } } return true; } 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), deg[dat.from]++, 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 false; } return (int)rem_ver.size() > 0; } 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(deg[v] > max_deg) max_deg = deg[v], next_ver = v; } if(2 * rem_edge_size > (long long)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); transition(K, next_ver, true); 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), deg(V, 0), edge_info(V){ 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}); deg[u]++, deg[v]++, 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; }