Submission #423820

#	Time	Username	Problem	Language	Result	Execution time	Memory
423820		kai824	Chameleon's Love (JOI20_chameleon)	C++17	4 / 100	10 ms	304 KiB

chameleon

#include "chameleon.h"
#include <bits/stdc++.h>
using namespace std;

namespace{
  vector<int> v;
}
void search(){
  int x=v.back();v.pop_back();

  vector<int> tmp;
  int lo=0,hi=v.size()-1,mid;
  while(lo<hi){
    mid=lo+((hi-lo)/2);
    tmp.clear();
    tmp.push_back(x);
    for(int i=lo;i<=mid;i++)tmp.push_back(v[i]);
    if(Query(tmp)<tmp.size())hi=mid;
    else lo=mid+1;
  }
  //cout<<v[lo]<<' '<<x<<'\n';
  Answer(v[lo],x);
  v.erase(v.begin()+lo);
}

void Solve(int n) {
  v.push_back(1);
  for(int i=2;i<=2*n;i++){
    v.push_back(i);
    if(v.size()==1)continue;
    if(Query(v)<v.size()){//lermao...
      search();
    }
  }

  //Answer(i * 2 + 1, i * 2 + 2);
}

Compilation message (stderr)

chameleon.cpp: In function 'void search()':
chameleon.cpp:18:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   18 |     if(Query(tmp)<tmp.size())hi=mid;
      |        ~~~~~~~~~~^~~~~~~~~~~
chameleon.cpp: In function 'void Solve(int)':
chameleon.cpp:31:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   31 |     if(Query(v)<v.size()){//lermao...
      |        ~~~~~~~~^~~~~~~~~

• Subtask 1: 4 / 4
• Subtask 2: 0 / 20
• Subtask 3: 0 / 20
• Subtask 4: 0 / 20
• Subtask 5: 0 / 36