Submission #118367

#	Time	Username	Problem	Language	Result	Execution time	Memory
118367		baqargam	Cave (IOI13_cave)	C++14	0 / 100	813 ms	640 KiB

cave

#include<bits/stdc++.h>
#include "cave.h"

using namespace std;
int n,comb[5005],fx[5005],S[5005],D[5005],rd[5005];
vector<int>v;

void set_init(int k){
    for(int i=0;i<k;i++){
        comb[D[i]]=S[i];
        fx[D[i]]=1;
    }
    v.clear();
    for(int i=0;i<n;i++){
        if(!fx[i])v.push_back(i);
    }
}


void set2(int m,int i){
    for(int j=0;j<m;j++){
        comb[v[j]]=S[i];
    }
    for(int j=m;j<v.size();j++){
        comb[v[j]]=S[i];
    }
}

void exploreCave(int N) {
    n=N;
    for(int i=0;i<n;i++){
        set_init(i);
        int fr=tryCombination(comb);
        if(fr>i)
            S[i]=1;
        else
            S[i]=0;
        int l=0,r=v.size();
        while(r-l>1){
            int m=(l+r)/2;
            set2(m,i);
            fr=tryCombination(comb);
            if(fr>i) r=m; else l=m;
        }
        D[i]=v[l];
    }
    for(int i=0;i<n;i++){
        rd[D[i]]=i;
    }
    answer(S,rd);
}

Compilation message (stderr)

cave.cpp: In function 'void set2(int, int)':
cave.cpp:24:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int j=m;j<v.size();j++){
                 ~^~~~~~~~~

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