제출 #410819

#제출 시각아이디문제언어결과실행 시간메모리
410819meperdonas203동굴 (IOI13_cave)C++17
100 / 100
1046 ms536 KiB
#include<iostream> #include "cave.h" using namespace std; bool fijo[70005]; int arre[70005]; int ans[70005]; int posiciones[70005]; bool uno(int pos,int N){ for(int i=0;i<N;i++){ if(!fijo[i]){ arre[i]=1; }else{ arre[i]=ans[i]; } } return(tryCombination(arre)==pos); } bool cerrada(int medio, int pos,bool valor,int N){ for(int i=0;i<=medio;i++){ if(!fijo[i]){ arre[i]=valor; }else{ arre[i]=ans[i]; } } for(int i=medio+1;i<N;i++){ if(!fijo[i]){ arre[i]=!valor; }else{ arre[i]=ans[i]; } } return(tryCombination(arre)==pos); } void bs(int indice,bool valor,int N){ int ini=0,res=0,fin=N-1,medio; while(ini<=fin){ medio=(ini+fin)/2; if(cerrada(medio,indice,valor,N)){ res=medio; fin=medio-1; }else{ ini=medio+1; } } fijo[res]=true; ans[res]=!valor; posiciones[res]=indice; } void exploreCave(int N) { for(int i=0;i<N;i++){ bs(i,uno(i,N),N); } answer(ans,posiciones); }
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