Submission #333704

#	Time	Username	Problem	Language	Result	Execution time	Memory
333704		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 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; i++){
		nxt[a[i]].push_back(a[i+1]);
	}
	bool ok=1;
	for (int i=1; i<=m; i++){
		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];
		map <int,int> p;
		for (int i=1; i<=n; i++){
			if (nxt[a[i-1]].size()==1){
				c[i]=a[i];
			} else if (nxt[a[i-1]].size()==2){
				if (p.count(a[i-1])) c[i]=p[a[i-1]];
				else {
					cur--;
					p[a[i-1]]=cur;
					c[i]=cur;
					x.push_back(nxt[a[i]][0]);
					y.push_back(nxt[a[i]][1]);
				}
			} //else if (nxt[a[i-1]].size()==3){
				
			//} else if (nxt[a[i-1]].size()==4){
				
			//}
		}
	}
	answer(c,x,y);
	return;
}

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