Submission #1167487

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1167487	2025-03-16 07:42:57	PlayVoltz	Library (JOI18_library)	C++20	100 / 100	80 ms	488 KiB

library

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#include <bits/stdc++.h>
#include "library.h"
using namespace std;
#define pb push_back
void Solve(int n){
  int prev=1;
  vector<vector<int> > graph(n+1);
  vector<int> vect(1, 1), temp;
  for (int i=2; i<=n; ++i){
    temp.assign(n, 0);
    for (auto a:vect)temp[a-1]=1;
    temp[i-1]=1;
    int res=Query(temp);
    if (res>prev)vect.pb(i);
    else if (res==prev){
      int low=-1, high=vect.size();
      while (low+1<high){
        int mid=(low+high)/2, c=1, f;
        temp.assign(n, 0);
        for (int j=mid; j<high; ++j)temp[vect[j]-1]=1;
        temp[i-1]=1;
        f=Query(temp);
        for (int j=mid; j<high-1; ++j){
          bool got=0;
          for (auto a:graph[vect[j]])if (a==vect[j+1])got=1;
          c+=!got;
        }
        if (c==f)low=mid;
 
 
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• Subtask 1: 19 / 19
• Subtask 2: 81 / 81