Submission #414835

#	Time	Username	Problem	Language	Result	Execution time	Memory
414835		cfalas	Mechanical Doll (IOI18_doll)	C++14	6 / 100	136 ms	11864 KiB

doll

#include "doll.h"
#include<bits/stdc++.h>
using namespace std;
#define mp make_pair
#define INF 10000000
#define MOD 1000000007
#define MID ((l+r)/2)
#define HASHMOD 2305843009213693951
#define ll long long
#define ull unsigned long long
#define F first
#define S second
typedef pair<ll, ll> ii;
typedef pair<ii, int> iii;
typedef vector<int> vi;
typedef vector<ii> vii;
typedef map<int, int> mii;

#define EPS 1e-6
#define FOR(i,n) for(int i=0;i<((int)(n));i++)
#define FORi(i,a,b) for(int i=((int)(a));i<((int)(b));i++)
#define FOA(v, a) for(auto v : a)

int s=0, n;
int cnt[1000000];
vector<vi> nxt;
vector<int> C, X, Y;


void create_circuit(int M, std::vector<int> A) {
	n = A.size();
	FOR(i,n+1) cnt[i] = 0;
	nxt.assign(M+1, vi());
	C.assign(M+1, 0);
	nxt[0].push_back(A[0]);
	FORi(i,1,n) nxt[A[i-1]].push_back(A[i]);
	nxt[A[n-1]].push_back(0);
	FOR(x,M+1){
		int q = nxt[x].size();
		if(q==1){
			C[x] = nxt[x][0];
		}
		else if(q==2){
			C[x] = -(++s);
			X.push_back(nxt[x][0]);
			Y.push_back(nxt[x][1]);
		}
		else if(q==3){
			C[x] = -(++s);
			X.push_back(-(++s));
			X.push_back(nxt[x][0]);
			Y.push_back(nxt[x][2]);
			Y.push_back(nxt[x][1]);
		}
		else if(q==4){
			C[x] = -(++s);
			X.push_back(-(++s));
			Y.push_back(-(++s));
			X.push_back(nxt[x][0]);
			Y.push_back(nxt[x][2]);
			X.push_back(nxt[x][1]);
			Y.push_back(nxt[x][3]);
		}
	}
#ifdef LOCAL
	FOA(v,C) cout<<v<<" ";
	cout<<endl;
	FOA(v,X) cout<<v<<" ";
	cout<<endl;
	FOA(v,Y) cout<<v<<" ";
	cout<<endl;
#endif

	answer(C, 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