Submission #212367

#	Time	Username	Problem	Language	Result	Execution time	Memory
212367		Abdullah	Chameleon's Love (JOI20_chameleon)	C++17	20 / 100	28 ms	416 KiB

chameleon

#include "chameleon.h"
#include <bits/stdc++.h>
using namespace std;
void Solve(int n) {
	n*=2;
	vector<vector<int>>adjs(n+1);
	vector<int>sizs(n+1, 0);
	for(int i=1; i<=n; i++){
		for(int j=i+1; j<=n; j++){
			if(Query({i, j})==1){
				adjs[i].push_back(j);
				adjs[j].push_back(i);
			}
		}
	}
	vector<bool>vis(n+1, 0);
	vector<vector<int>>B(n+1);
	for(int i=1; i<=n; i++){
		if(vis[i]==1)continue;
		if(adjs[i].size()==1){
			Answer(i, adjs[i][0]);
			vis[i]=1; 
			vis[adjs[i][0]]=1;
		}else{
			for(int j=0; j<3; j++){
				vector<int>A={i};
				for(int a=0;a<=2; a++){
					if(a!=j)A.push_back(adjs[i][a]);
				}
				if(Query(A)==1){
					B[i].push_back(adjs[i][j]);
					B[adjs[i][j]].push_back(i);
					break;
				}
			}
		}
	}
	for(int i=1; i<=n; i++){
		if(vis[i]==1)continue;
		for(int a:adjs[i]){
			if(a!=B[i][0]&&a!=B[i][1]){
				Answer(i, a);
				vis[i]=1, vis[a]=1;
				break;
			}
		}
	}
}

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