Submission #968960

#	Time	Username	Problem	Language	Result	Execution time	Memory
968960		Darren0724	Chameleon's Love (JOI20_chameleon)	C++17	40 / 100	15 ms	600 KiB

chameleon

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

void Solve(int n) {
	vector<int> vis(n*2+1),deg(n*2+1);
	vector<int> adj[n*2+1];
	map<pair<int,int>,int> m;
	for(int i=1;i<=n*2;i++){
		for(int j=i+1;j<=n*2;j++){
			if(Query({i,j})==1){
				//cout<<i<<' '<<j<<endl;
				adj[i].push_back(j);
				adj[j].push_back(i);
				deg[i]++,deg[j]++;
			}
		}
	}
	for(int i=1;i<=n*2;i++){
		if(vis[i])continue;
		if(deg[i]==1){
			Answer(i,adj[i][0]);
			vis[i]=1;
			vis[adj[i][0]]=1;
		}
	}
	for(int i=1;i<=n*2;i++){
		if(vis[i])continue;
		vector<int> t;
		for(int j:adj[i]){
			//if(vis[j])continue;
			t.push_back(j);
			//cout<<j<<' ';
		}
		//cout<<endl;
		vector<int> rec(3);
		rec[0]=Query({t[0],t[1],i});
		rec[1]=Query({t[0],t[2],i});
		rec[2]=Query({t[1],t[2],i});
		auto upd=[&](int a,int b){
			if(a>b)swap(a,b);
			if(m[{a,b}])Answer(a,b);
			m[{a,b}]++;
		};
		if(rec[0]==1){
			upd(i,t[0]);
			upd(i,t[1]);
		}
		if(rec[1]==1){
			upd(i,t[0]);
			upd(i,t[2]);
		}
		if(rec[2]==1){
			upd(i,t[1]);
			upd(i,t[2]);
		}
	}
}

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