제출 #441245

#제출 시각아이디문제언어결과실행 시간메모리
441245FEDIKUS동굴 (IOI13_cave)C++17
100 / 100
1123 ms644 KiB
#include "cave.h" const int maxn=5010; int s[maxn]; int d[maxn]; bool resio[maxn]; int ns[maxn]; int pitaj(int k,int sta,int n){ for(int i=0;i<n;i++){ if(resio[i]){ ns[i]=s[i]; continue; } if(i<=k) ns[i]=sta; else ns[i]=1-sta; } int ret=tryCombination(ns); if(ret==-1) ret=n; return ret; } void exploreCave(int n) { for(int i=0;i<n;i++){ int sta=-1; if(pitaj(n,1,n)>i) sta=1; else sta=0; int l=0; int r=n; int gde=-1; while(l<=r){ int mid=l+(r-l)/2; if(pitaj(mid,sta,n)>i){ gde=mid; r=mid-1; }else l=mid+1; } d[gde]=i; s[gde]=sta; resio[gde]=true; } answer(s,d); }
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