제출 #981135

#제출 시각아이디문제언어결과실행 시간메모리
981135aaaaaarroz동굴 (IOI13_cave)C++17
100 / 100
547 ms912 KiB
#include "cave.h" #include <bits/stdc++.h> using namespace std; typedef vector<int> vi; int tryCombination(int S[]); void answer(int S[],int D[]); void exploreCave(int N) { int s[N],d[N]; int a[N];int ans[N]; int pos=0;int p=0;int g; while(pos<N){ for(int i=0;i<N;i++)a[i]=0; for(int i=0;i<pos;i++)a[d[i]]=s[d[i]]; p=tryCombination(a); if(p==pos)g=1; else g=0; int l=0;int r=N-1; while(N){ int k=(l+r)/2; if(g==0){ for(int i=0;i<N;i++)a[i]=1; for(int i=0;i<k+1;i++)a[i]=0; } else{ for(int i=0;i<N;i++)a[i]=0; for(int i=0;i<k+1;i++)a[i]=1; } for(int i=0;i<pos;i++)a[d[i]]=s[d[i]]; p=tryCombination(a); if(p==pos)l=k+1; else r=k; if(l==r)break; } d[pos]=l; s[d[pos]]=g; pos++; } for(int i=0;i<N;i++)ans[d[i]]=i; answer(s,ans); }
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