Submission #245988

#	Time	Username	Problem	Language	Result	Execution time	Memory
245988		kimbj0709	Cave (IOI13_cave)	C++14	100 / 100	346 ms	760 KiB

cave

#include<bits/stdc++.h>
using namespace std;
#include "cave.h"
void exploreCave(int N) {
  vector<int> ans(N);
  int pos[N];
  for(int i=0;i<N;i++){
    pos[i] = 0;
  }
  deque<int> currelem;
  for(int i=0;i<N;i++){
    currelem.push_back(i);
  }
  for(int i=0;i<N;i++){
    int rn = tryCombination(pos);
    if(rn==-1||rn>i){
    }
    else{
      for(auto k:currelem){
        pos[k] ^= 1;
      }
    }
    deque<int> curr = currelem;
    while(curr.size()>1){
      int mid = (curr.size()+1)/2;
      for(int j=0;j<mid;j++){
        pos[curr[j]] ^= 1;
      }
      int idk = tryCombination(pos);
      for(int j=0;j<mid;j++){
        pos[curr[j]] ^= 1;
      }
      if(idk==-1||idk>i){
        for(int j=0;j<mid;j++){
          curr.pop_front();
        }
      }
      else{
        int sss = curr.size();
        for(int j=sss-1;j>=mid;j--){
          curr.pop_back();
        }
      }
    }
    int p = 0;
    for(int j=0;j<currelem.size();j++){
      if(currelem[j]==curr[0]){
        p = j;
      }
    }
    ans[curr[0]] = i;
    currelem.erase(currelem.begin()+p);
  }
  int temp1[N];
  for(int i=0;i<N;i++){
    temp1[i] = ans[i];
  }
  answer(pos,temp1);
  return;
}

Compilation message (stderr)

cave.cpp: In function 'void exploreCave(int)':
cave.cpp:46:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int j=0;j<currelem.size();j++){
                 ~^~~~~~~~~~~~~~~~

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