Submission #333741

#	Time	Username	Problem	Language	Result	Execution time	Memory
333741		nicholask	Mechanical Doll (IOI18_doll)	C++14	0 / 100	1 ms	204 KiB

doll

#include "doll.h"
#include <bits/stdc++.h>
using namespace std;
/*
void answer(vector <int> c,vector <int> x,vector <int> y){
	cout<<"C: ";
	for (auto&i:c) cout<<i<<' ';
	cout<<endl;
	cout<<"X: ";
	for (auto&i:x) cout<<i<<' ';
	cout<<endl;
	cout<<"Y: ";
	for (auto&i:y) cout<<i<<' ';
	cout<<endl;
	return;
}
*/
void create_circuit(int m,vector <int> a){
	int n=a.size();
	vector <int> nxt[m+1];
	a.push_back(0);
	for (int i=0; i<n-1; i++){
		nxt[a[i]].push_back(a[i+1]);
	}
	bool ok=1;
	for (int i=1; i<=m; i++){
		//for (auto&j:nxt[i]) cout<<j<<' ';
		//cout<<endl;
		if (nxt[i].size()>4){
			ok=0;
			break;
		}
	}
	vector <int> c(m+1,0),x,y;
	int cur=0;
	if (ok){
		c[0]=a[0];
		for (int i=1; i<=m; i++){
			if (nxt[i].size()==1){
				c[a[i-1]]=nxt[i][0];
			} else if (nxt[i].size()==2){
				cur--;
				c[i]=cur;
				x.push_back(nxt[i][0]);
				y.push_back(nxt[i][1]);
			} else if (nxt[i].size()==3){
				cur--;
				c[i]=cur;
				cur--;
				x.push_back(cur);
				cur--;
				y.push_back(cur);
				x.push_back(c[i]);
				y.push_back(nxt[i][1]);
				x.push_back(nxt[i][0]);
				y.push_back(nxt[i][2]);
			} else if (nxt[i].size()==4){
				cur--;
				c[i]=cur;
				cur--;
				x.push_back(cur);
				cur--;
				y.push_back(cur);
				x.push_back(nxt[i][0]);
				y.push_back(nxt[i][2]);
				x.push_back(nxt[i][1]);
				y.push_back(nxt[i][3]);
			}
		}
	}
	answer(c,x,y);
	return;
}
/*
int main(){
	int n,m;
	cin>>m>>n;
	vector <int> a;
	for (int i=0; i<n; i++){
		int t;
		cin>>t;
		a.push_back(t);
	}
	create_circuit(m,a);
}
*/

• Subtask 1: 0 / 2
• Subtask 2: 0 / 4
• Subtask 3: 0 / 10
• Subtask 4: 0 / 10
• Subtask 5: 0 / 18
• Subtask 6: 0 / 56