Submission #1045098

#	Time	Username	Problem	Language	Result	Execution time	Memory
1045098		wood	Mechanical Doll (IOI18_doll)	C++17	6 / 100	42 ms	11208 KiB

doll

#include "doll.h"
#include <bits/stdc++.h>
using namespace std;
#define pb push_back
void create_circuit(int M, std::vector<int> A) {
	int N = A.size();
	vector<int> adj[M];
	for(int i = 0; i<N; i++){
		if(i<N-1)
		adj[A[i]-1].pb(A[i+1]);
		else adj[A[i]-1].pb(0);
	}
	vector<int> res(M+1), x, y;
	int switchcnt = 0;
	res[0] = A[0];
	for(int i = 0; i<M; i++){
		if(adj[i].size()==1) res[i+1] = adj[i][0];
		if(adj[i].size()==2){
			switchcnt++;
			res[i+1] = -switchcnt;
			x.pb(adj[i][0]);
			y.pb(adj[i][1]);
		}
		if(adj[i].size()>2){
			switchcnt++;
			res[i+1] = -switchcnt;
			switchcnt++; x.pb(-switchcnt);
			switchcnt++; y.pb(-switchcnt);
			x.pb(adj[i][0]);
			if(adj[i].size()==3) {
				y.pb(-switchcnt+2);
				x.pb(adj[i][1]);
				y.pb(adj[i][2]);
			}
			else{
				y.pb(adj[i][1]);
				x.pb(adj[i][2]);
				y.pb(adj[i][3]);
			}
		}

	}
	answer(res,x,y);
}

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