Submission #167929

#	Time	Username	Problem	Language	Result	Execution time	Memory
167929		keta_tsimakuridze	동굴 (IOI13_cave)	C++14	100 / 100	1410 ms	644 KiB

cave

#include<bits/stdc++.h>
#include "cave.h"
using namespace std;
void exploreCave(int N){
	int C[50006],Cdef[50006],fix[50006],opens,Not,l,r,tr,ans2[500006];
	
	for(int k=0;k<N;k++)
	fix[k]=0;
	
	for(int k=0;k<N;k++){

		for(int i=0;i<N;i++){
			if(fix[i]==1)
				 C[i]=Cdef[i];
			else 
				C[i]=1;
	    } 
	 	int tr=tryCombination(C);
 		if(tr>k || tr==-1) {
 			opens=1;
		}
		 else opens=0;
		 
		 if(opens==0) Not=1;
		 else Not=0;
		l=0;
		r=N-1;
		
		while(l<=r)
		{
			if(l==r){
				fix[l]=1;
				Cdef[l]=opens;
				ans2[l]=k;
				break;
			}
			int mid=(l+r)/2;
			for(int i=l;i<=mid;i++)
			if(fix[i]==0) C[i]=opens;
			else C[i]=Cdef[i];
			for(int i=mid+1;i<=r;i++)
			if(fix[i]==0) C[i]=Not;
			else C[i]=Cdef[i];
			for(int i=0;i<N;i++)
			if(fix[i]==1) 
			 C[i]=Cdef[i];
			
			int tr=tryCombination(C);
			if(tr>k || tr==-1) r=mid;
			else l=mid+1; 
		}
		 
 		
		
	}
	answer(Cdef,ans2);
}

Compilation message (stderr)

cave.cpp: In function 'void exploreCave(int)':
cave.cpp:5:52: warning: unused variable 'tr' [-Wunused-variable]
  int C[50006],Cdef[50006],fix[50006],opens,Not,l,r,tr,ans2[500006];
                                                    ^~

• Subtask 1: 12 / 12
• Subtask 2: 13 / 13
• Subtask 3: 21 / 21
• Subtask 4: 30 / 30
• Subtask 5: 24 / 24