Submission #836257

#	Time	Username	Problem	Language	Result	Execution time	Memory
836257		Liudas	Minerals (JOI19_minerals)	C++17	80 / 100	30 ms	3400 KiB

minerals

#include "minerals.h"
#include "minerals.h"
#include <cstdio>
#include <cstdlib>
#include <algorithm>
#include <vector>
#include <iostream>
using namespace std;
int last = 0;
void div(vector<int> start, vector<int> end, int par){
  int N = start.size();
  vector<int> l, r, le, re;
  if(N == 1){
    Answer(start[0], end[0]);
    return;
  }
  if(par == 1){
    for(int i = 0; i < N/2; i ++){
      last = Query(start[i]);
      l.push_back(start[i]);
    }
    for(int i = N/2; i < N; i ++){
      r.push_back(start[i]);
    }
    for(int i = 0; i < N; i ++){
      int t = Query(end[i]);
      if(t != last){
        last = t;
        le.push_back(end[i]);
      }
      else{
        re.push_back(end[i]);
      }
    }
    div(le, l, 1);
    div(r, re, 2);
  }
  else if (par == 2){
    for(int i = 0; i < N/2; i ++){
      last = Query(start[i]);
      l.push_back(start[i]);
    }
    for(int i = N/2; i < N; i ++){
      r.push_back(start[i]);
    }
    for(int i = 0; i < N; i ++){
      int t = Query(end[i]);
      if(t != last){
        last = t;
        le.push_back(end[i]);
      }
      else{
        re.push_back(end[i]);
      }
    }
    div(l, le, 0);
    div(r, re, 1);
  }
  if(par == 0){
    for(int i = 0; i < N/2; i ++){
      last = Query(start[i]);
      l.push_back(start[i]);
    }
    for(int i = N/2; i < N; i ++){
      r.push_back(start[i]);
    }
    for(int i = 0; i < N; i ++){
      int t = Query(end[i]);
      if(t == last){
        last = t;
        le.push_back(end[i]);
      }
      else{
        last = t;
        re.push_back(end[i]);
      }
    }
    div(l, le, 2);
    div(re, r, 1);
  }
}
void Solve(int N) {
  vector<int> start, end;
  for(int i = 0; i < N * 2; i ++){
    int t = start.size();
    int ans = Query(i+1);
    if(ans == t + 1){
      start.push_back(i+1);
    }
    else{
      end.push_back(i+1);
    }
  }
  last = N;
  div(start, end, 2);
}

• Subtask 1: 6 / 6
• Subtask 2: 25 / 25
• Subtask 3: 9 / 9
• Subtask 4: 30 / 30
• Subtask 5: 5 / 5
• Subtask 6: 5 / 5
• Subtask 7: 0 / 5
• Subtask 8: 0 / 5
• Subtask 9: 0 / 10