제출 #109471

#제출 시각아이디문제언어결과실행 시간메모리
109471nikolapesic2802자동 인형 (IOI18_doll)C++14
53 / 100
228 ms20204 KiB
#include <bits/stdc++.h> #define ll long long #define pb push_back #define f first #define s second #define sz(x) (int)x.size() #define all(x) x.begin(), x.end() using namespace std; template<class T1, class T2> ostream& operator<<(ostream& os, const pair<T1,T2>& a) { os << '{' << a.f << ", " << a.s << '}'; return os; } template<class T> ostream& operator<<(ostream& os, const vector<T>& a){os << '{';for(int i=0;i<sz(a);i++){if(i>0&&i<sz(a))os << ", ";os << a[i];}os<<'}';return os;} void answer(std::vector<int> C, std::vector<int> X, std::vector<int> Y); struct node{ int x,y; node(){x=-1;y=-1;} }; const int NMAX=6e5+5; vector<node> graf(NMAX); vector<int> flipped(NMAX); int stigao; void build(int tr,int koliko) { if(koliko==0) return; graf[tr].x=stigao; stigao++; build(stigao-1,koliko-1); graf[tr].y=stigao; stigao++; build(stigao-1,koliko-1); } pair<int,int> get(int tr) { //printf("Getujem %i %i %i %i\n",tr,flipped[tr],graf[tr].x,graf[tr].y); if(flipped[tr]) { flipped[tr]=0; if(graf[tr].y==-1) { return {tr,1}; } else return get(graf[tr].y); } else { flipped[tr]=1; if(graf[tr].x==-1) { return {tr,0}; } else return get(graf[tr].x); } } void construct(int i,vector<int> d) { //cout << d << i << endl; if(d.size()==0) d.pb(0); if(d.size()==1) { graf[i].x=d[0]; return; } int sz=1; while((1<<sz)<(int)d.size()) sz++; graf[i].x=stigao; stigao++; build(stigao-1,sz-1); for(int j=0;j<(1<<sz);j++) { pair<int,int> t=get(graf[i].x); if(t.s) { if(j==(1<<sz)-1) { graf[t.f].y=d.back(); continue; } if(j>=(int)d.size()-1) graf[t.f].y=graf[i].x; else graf[t.f].y=d[j]; } else { if(j==(1<<sz)-1) { graf[t.f].x=d.back(); continue; } if(j>=(int)d.size()-1) graf[t.f].x=graf[i].x; else graf[t.f].x=d[j]; } } /*for(int i=0;i<NMAX;i++) { printf("%i: %i %i\n",i,graf[i].x,graf[i].y); }*/ } void create_circuit(int m, vector<int> a) { int n=a.size(); vector<vector<int> > ide(m+1); for(int i=0;i<=m;i++) graf[i].y=-1; graf[0].x=a[0]; for(int i=1;i<n;i++) ide[a[i-1]].pb(a[i]); ide[a.back()].pb(0); stigao=m+1; for(int i=1;i<=m;i++) construct(i,ide[i]); vector<int> A,X,Y; for(int i=0;i<=m;i++) if(graf[i].x>m) A.pb(m-graf[i].x); else A.pb(graf[i].x); for(int i=m+1;i<stigao;i++) { if(graf[i].x>m) X.pb(m-graf[i].x); else X.pb(graf[i].x); if(graf[i].y>m) Y.pb(m-graf[i].y); else Y.pb(graf[i].y); } answer(A,X,Y); }
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