Submission #503196

#	Time	Username	Problem	Language	Result	Execution time	Memory
503196		leinad2	Minerals (JOI19_minerals)	C++17	90 / 100	63 ms	13620 KiB

minerals

#include "minerals.h"
#include<bits/stdc++.h>
using namespace std;
vector<int>A;
vector<vector<int> >v;
int a;
void solve()
{
    bool flag=true;
    for(int i=0;i<v.size();i++)if(v[i].size()>=2)flag=false;
    if(flag)return;
    int sz=0;
    int x=0;
    for(int i=0;i<v.size();i++)
    {
        if(v[i].size()==1)
        {
            sz++;
            continue;
        }
        if(i%2==0)
        {
            for(int j=sz+(v[i].size()+1)/2;j<sz+v[i].size();j++)a=Query(A[j]);
        }
        else
        {
            for(int j=sz;j<sz+(v[i].size())/2;j++)a=Query(A[j]);
        }
        sz+=v[i].size();
    }
    vector<vector<int> >V;
    for(int i=0;i<v.size();i++)
    {
        vector<int>Fi, Se;
        if(v[i].size()==1)
        {
            V.push_back(v[i]);
            continue;
        }
        if(i%2==0)x=(v[i].size()+1)/2;
        else x=v[i].size()/2;
        for(auto p:v[i])
        {
            if(Fi.size()==x)Se.push_back(p);
            else if(Se.size()+x==v[i].size())Fi.push_back(p);
            else
            {
                int b=Query(p);
                if(a!=b)Se.push_back(p);
                else Fi.push_back(p);
                a=b;
            }
        }
        V.push_back(Fi);
        V.push_back(Se);
    }
    v=V;
    solve();
}
void Solve(int N)
{
    vector<int>A, B;
    for(int i=1;i<=2*N;i++)
    {
        int b=Query(i);
        if(a!=b)A.push_back(i);
        else B.push_back(i);
        a=b;
    }
    ::A=A;
    v={B};
    solve();
    vector<int>ans;
    for(int i=0;i<v.size();i++)if(v[i].size())ans.push_back(v[i][0]);
    for(int i=0;i<N;i++)Answer(A[i], ans[i]);
}

Compilation message (stderr)

minerals.cpp: In function 'void solve()':
minerals.cpp:10:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   10 |     for(int i=0;i<v.size();i++)if(v[i].size()>=2)flag=false;
      |                 ~^~~~~~~~~
minerals.cpp:14:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   14 |     for(int i=0;i<v.size();i++)
      |                 ~^~~~~~~~~
minerals.cpp:23:45: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   23 |             for(int j=sz+(v[i].size()+1)/2;j<sz+v[i].size();j++)a=Query(A[j]);
      |                                            ~^~~~~~~~~~~~~~~
minerals.cpp:27:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |             for(int j=sz;j<sz+(v[i].size())/2;j++)a=Query(A[j]);
      |                          ~^~~~~~~~~~~~~~~~~~~
minerals.cpp:32:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   32 |     for(int i=0;i<v.size();i++)
      |                 ~^~~~~~~~~
minerals.cpp:44:25: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   44 |             if(Fi.size()==x)Se.push_back(p);
      |                ~~~~~~~~~^~~
minerals.cpp: In function 'void Solve(int)':
minerals.cpp:74:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   74 |     for(int i=0;i<v.size();i++)if(v[i].size())ans.push_back(v[i][0]);
      |                 ~^~~~~~~~~

• 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: 5 / 5
• Subtask 8: 5 / 5
• Subtask 9: 0 / 10