Submission #298020

#	Time	Username	Problem	Language	Result	Execution time	Memory
298020		miss_robot	Mechanical Doll (IOI18_doll)	C++14	100 / 100	246 ms	13340 KiB

doll

#include <bits/stdc++.h>
#include "doll.h"

#pragma GCC optimize("O0")

using namespace std;

int n, m, c = -2;
vector<int> X, Y, mode;

void b(int u, int l, int &j){
	if(l){
		Y[-u-1] = c;
		b(c--, l-1, j);
		if(j){
			X[-u-1] = c;
			b(c--, l-1, j);
		}
		else X[-u-1] = -1;
	}
	else{
		Y[-u-1] = m+1, j--;
		if(j) X[-u-1] = m+1, j--;
		else X[-u-1] = -1;
	}
}

void asg(int u, int t){
	if(mode[-u-1]){
		mode[-u-1] = 0;
		if(Y[-u-1] == m+1) Y[-u-1] = t;
		else asg(Y[-u-1], t);
	}
	else{
		mode[-u-1] = 1;
		if(X[-u-1] == m+1) X[-u-1] = t;
		else asg(X[-u-1], t);
	}
}

void create_circuit(int M, vector<int> A){
	A.push_back(0);
	n = A.size(), m = M;
	vector<int> C(m+1);
	X.resize(2*n), Y.resize(2*n), mode.resize(2*n);
	C[0] = -1;
	for(int i = 1; i <= m; i++) C[i] = -1;
	int l = ceil(log2(n)), t = n;
	b(-1, l-1, t);
	for(int i = 0; i < n; i++) asg(-1, A[i]);
	X.resize(-c-1), Y.resize(-c-1);
	answer(C, X, Y);
}

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