Submission #735449

#	Time	Username	Problem	Language	Result	Execution time	Memory
735449		keisuke6	Fun Tour (APIO20_fun)	C++14	0 / 100	1 ms	212 KiB

fun

#include "fun.h"

#include <iostream>
#include <queue>
#include <vector>
#include <set>
using namespace std;
std::vector<int> createFunTour(int N, int Q) {
  vector<int> A = {};
  while(N > 2){
    int d = 0;
    while((1<<(d+1)) <= N) d++;
    if(N+1-(1<<d) > (1<<(d-1))){
      int s = (1<<d)+(1<<(d+1))-3;
      int c = 0;
      for(int i=(1<<d)-1;i<(1<<d)-1+(1<<(d-1));i++)if(s-i < N && i < s-i){
        A.push_back(i);
        A.push_back(s-i);
        c += 2;
      }
      N -= c;
      continue;
    }
    if(N+1-(1<<d) > (1<<(d-1)-1)/2+1){
      int s = (1<<d)+(1<<d)+(1<<(d-1))-3;
      int c = 0;
      for(int i=(1<<d)-1;i<=s-((1<<d)-1);i++)if(s-i < N && i < s-i){
        A.push_back(i);
        A.push_back(s-i);
        c+=2;
      }
      N -= c;
      continue;
    }
    int c = 0;
    for(int i=(1<<d)-1;i<N;i++){
      c += 2;
      A.push_back(i);
      A.push_back((1<<(d+1))-3-i);
    }
    N -= c;
    if(clock()*1.0/CLOCKS_PER_SEC > 1.6) break;
  }
  if(N == 2){
    A.push_back(0);
    A.push_back(1);
  }
  if(N == 1) A.push_back(0);
  return A;
}

Compilation message (stderr)

fun.cpp: In function 'std::vector<int> createFunTour(int, int)':
fun.cpp:24:30: warning: suggest parentheses around '-' inside '<<' [-Wparentheses]
   24 |     if(N+1-(1<<d) > (1<<(d-1)-1)/2+1){
      |                         ~~~~~^~

• Subtask 1: 0 / 10
• Subtask 2: 0 / 16
• Subtask 3: 0 / 21
• Subtask 4: 0 / 19
• Subtask 5: 0 / 34