Submission #231215

#	Time	Username	Problem	Language	Result	Execution time	Memory
231215		AASG	Cave (IOI13_cave)	C++11	0 / 100	50 ms	504 KiB

cave

#include "cave.h"
#include <bits/stdc++.h>
using namespace std;
void exploreCave(int N) {
    int n=N;
    int R[n+10];int P[n+10];
    int aux2[n+10];
    int x,y;
    bool z;
    for(int i=0;i<n;i++){
        R[i]=1;
        P[i]=-1;
    }
    for(int i=0;i<n;i++){
        for(int l=0;l<n;l++)aux2[l]=R[l];
        
        int p1=0,p2=n-1;
        x=tryCombination(aux2);z=1;
        while(abs(p1-p2)!=1){
            int p3=(p1+p2)/2;
            if(z){
            for(int l=p1;l<=p3;l++){
                if(P[l]==0){
                    aux2[l]=0;
                }
            }}else{
            for(int l=p1;l<=p3;l++){
                if(P[l]==0){
                    aux2[l]=1;
                }
            }
            }
            y=tryCombination(aux2);
        if((x>=i+1 || x==-1) && (y>=i+1 || y==-1)){p1=p3+1;z=0;}
        else if((x>=i+1 || x==-1) && (y<i+1 && x!=-1)){p2=p3;z=1;}
        else if((x<i+1 && x!=-1) && (y>=i+1 || x==-1)){
                p2=p3;
                z=1;
        }
        else if((x<i+1 && x!=-1) && (y<i+1 && x!=-1)){
            p1=p3+1;
            z=0;
        }
        x=y;
        }
        if(i==n-1){
        if(aux2[p1]==1 && P[p1]==-1){aux2[p1]=0;}
        else if(aux2[p1]==0 && P[p1]==-1){aux2[p1]=1;}
        y=tryCombination(aux2);
        if(x==-1 && y==-1){R[p2]=aux2[p2];P[p2]=i;}
        else if(x!=-1 && y==-1){R[p1]=aux2[p1];P[p1]=i;}
        else if(x==-1 && y!=-1){if(aux2[p1]==1){aux2[p1]=0;}
        else{aux2[p1]=1;}
        R[p1]=aux2[p1];P[p1]=i;
        }
        else if(x!=-1 && y!=-1){if(aux2[p2]==1){aux2[p2]=0;}
        else{aux2[p2]=1;}
        R[p2]=aux2[p2];
        P[p2]=i;
        }
        }else{
        if(aux2[p1]==1 && P[p1]==-1){aux2[p1]=0;}
        else if(aux2[p1]==0 && P[p1]==-1){aux2[p1]=1;}
        y=tryCombination(aux2);
        if(x>=i+1 && y>=i+1){R[p2]=aux2[p2];P[p2]=i;}
        else if(x<i+1 && y>=i+1){R[p1]=aux2[p1];P[p1]=i;}
        else if(x>=i+1 && y<i+1){if(aux2[p1]==1){aux2[p1]=0;}
        else{aux2[p1]=1;}
        R[p1]=aux2[p1];P[p1]=i;
        }
        else if(x<i+1 && y<i+1){if(aux2[p2]==1){aux2[p2]=0;}
        else{aux2[p2]=1;}
        R[p2]=aux2[p2];
        P[p2]=i;
        }
        }
    }
    answer(R,P);
}

• Subtask 1: 0 / 12
• Subtask 2: 0 / 13
• Subtask 3: 0 / 21
• Subtask 4: 0 / 30
• Subtask 5: 0 / 24