제출 #1216814

#제출 시각아이디문제언어결과실행 시간메모리
1216814lizi14동굴 (IOI13_cave)C++20
0 / 100
165 ms528 KiB
#include <iostream> #include <fstream> #include <cstdlib> #include <cstdio> #include "cave.h" using namespace std; void exploreCave(int N) { int x[N]; fill(x,x+N,1); int s[N]; fill(s,s+N,0); int an=0; int f=0; int c[N]; int h=0; while(h<N){ int a=tryCombination(x); // if(a==-1){ // break; // } if(a>h || a==-1){ int ans=0; int l=0,r=N-1; while(l<r){ int mid=(l+r)/2; for(int i=l; i<mid; i++){ if(s[i]==0){ x[i]=1-x[i]; } } int k=tryCombination(x); if(k==h+1){ l=mid+1; ans=mid; } else r=mid-1; } an=a; //x[ans]=1-x[ans]; s[ans]=1; c[ans]=h; for(int i=0; i<N; i++){ if(s[i]==0){ x[i]=0; } } h++; } else{ for(int i=0; i<N; i++){ if(s[i]==0){ x[i]=1-x[i]; //f=x[i]; } } } // for(int i=0; i<N; i++){ // cout<<x[i]<<" "; // } // cout<<endl; //x[a]=1-x[a]; } return answer(x, c); }
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