제출 #250193

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
250193		errorgorn	Minerals (JOI19_minerals)	C++14	40 / 100	78 ms	3788 KiB

minerals

#include <bits/stdc++.h>
#include "minerals.h"
using namespace std;
 
#define rep(x,s,e) for (auto x=s;x<e;x++)
#define sz(x) (int)(x).size()
#define all(x) (x).begin(),(x).end()
 
mt19937 rng(chrono::system_clock::now().time_since_epoch().count());

int curr=0;
void rec(vector<int> v1,vector<int> v2,bool flag){
	/*
	for (auto &it:v1) cout<<it<<" ";cout<<endl;
	for (auto &it:v2) cout<<it<<" ";cout<<endl;
	cout<<endl;
	//*/
	
	if (sz(v1)==1){
		Answer(v1[0],v2[0]);
		
		curr=Query(v1[0]);
		if (flag) Query(v2[0]);
		return;
	}
	
	rep(x,0,sz(v1)) swap(v1[x],v1[rng()%(x+1)]);
	rep(x,0,sz(v2)) swap(v2[x],v2[rng()%(x+1)]);
	
	vector<int> l1,l2,r1,r2;
	
	int half=1;
	while (half<sz(v1)) half<<=1;
	half>>=1;
	
	rep(x,0,half){
		l1.push_back(v1[x]);
	}
	rep(x,half,sz(v1)){
		curr=Query(v1[x]);
		r1.push_back(v1[x]);
	}
	
	if (!flag){
		for (auto &it:v2){
			int temp=Query(it);
			
			if (temp==curr){
				l2.push_back(it);
			}
			else{
				r2.push_back(it);
				curr=temp;
			}
		}
		
		rec(l1,l2,true),rec(r2,r1,false);
	}
	else{
		for (auto &it:v2){
			int temp=Query(it);
			
			if (temp==curr){
				l2.push_back(it);
			}
			else{
				r2.push_back(it);
				Query(it);
			}
		}
		
		rec(l1,l2,false),rec(r2,r1,false);
	}
}

 
void Solve(int n) {
	vector<int> v1,v2;
	
	rep(x,1,2*n+1){
		int temp=Query(x);
		
		if (temp==curr){
			v2.push_back(x);
		}
		else{
			v1.push_back(x);
		}
		
		curr=temp;
	}
	
	rec(v1,v2,true);
}

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