Submission #775232

#	Time	Username	Problem	Language	Result	Execution time	Memory
775232		Baytoro	Mechanical Doll (IOI18_doll)	C++17	2 / 100	42 ms	10372 KiB

doll

#include "doll.h"
//#include "grader.cpp"
#include <bits/stdc++.h>
using namespace std;
const int NN=2e5+5;
vector<int> g[NN];
vector<int> x,y;
#define pb push_back
void create_circuit(int m, vector<int> a) {
	int n=a.size();
	vector<int> c(m+1);
	c[0]=a[0];
	for(int i=0;i<n-1;i++){
		g[a[i]].push_back(a[i+1]);
		c[a[i]]=a[i+1];
	}
	int id=-1;
	for(int i=1;i<=m;i++){
		int sz=g[i].size();
		if(sz<=1) continue;
		c[i]=id--;
		if(sz==2){
			x.pb(g[i][0]);
			y.pb(g[i][1]);
		}
		else if(sz==3){
			x.pb(id--);
			y.pb(id--);
			x.pb(c[i]);
			y.pb(g[i][1]);
			x.pb(g[i][0]);
			y.pb(g[i][2]);
		}
		else if(sz==4){
			x.pb(id--);
			y.pb(id--);
			x.pb(g[i][0]);
			y.pb(g[i][2]);
			x.pb(g[i][1]);
			y.pb(g[i][3]);
		}
	}
	answer(c,x,y);
}

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