Submission #296554

#	Time	Username	Problem	Language	Result	Execution time	Memory
296554		cookiedoth	Mechanical Doll (IOI18_doll)	C++14	0 / 100	2 ms	332 KiB

doll

#include "doll.h"
#include <iostream>
#include <fstream>
#include <vector>
#include <set>
#include <map>
#include <tuple>
#include <unordered_set>
#include <unordered_map>
#include <bitset>
#include <iomanip>
#include <numeric>
#include <functional>
#include <algorithm>
#include <string>
#include <cstring>
#include <cmath>
#include <cassert>
#include <random>
#define ll long long
#define ld long double
#define null NULL
#define all(a) a.begin(), a.end()
#define rall(a) a.rbegin(), a.rend()
#define length(a) (int)a.size()

using namespace std;

template<class iterator> void output(iterator begin, iterator end, ostream &out = cerr) {
	while (begin != end) {
		out << (*begin) << ' ';
		begin++;
	}
	out << endl;
}

template<class T> void output(const T &x, ostream &out = cerr) {
	output(x.begin(), x.end(), out);
}

template<class T> int chkmin(T &a, const T &b) {
	if (b < a) {
		a = b;
		return 1;
	}
	return 0;
}

template<class T> int chkmax(T &a, const T &b) {
	if (b > a) {
		a = b;
		return 1;
	}
	return 0;
}

void fast_io() {
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
}

vector<int> C, X, Y;

int transform(int id) {
	return -(id + 1);
}

int new_vertex() {
	X.push_back(0);
	Y.push_back(0);
	return length(X) - 1;
}

int build_binary(vector<int> a) {
	if (a.size() == 1) {
		if (a[0] >= 1) {
			C[a[0]] = -1;
		}
		return a[0];
	}
	vector<int> a1, a2;
	int v = new_vertex();
	for (int i = 0; i < length(a); ++i) {
		if ((i % 2) == 0) {
			a1.push_back(a[i]);
		} else {
			a2.push_back(a[i]);
		}
	}
	int v1 = build_binary(a1);
	int v2 = build_binary(a2);
	X[v] = v1;
	Y[v] = v2;
	return transform(v);
}

int n;
vector<int> a;

void build() {
	int rv = 0;
	while ((1 << rv) - 1 < n) {
		rv++;
		new_vertex();
	}
	for (int i = 0; i < rv - 1; ++i) {
		Y[i] = transform(i + 1);
	}
	Y[rv - 1] = 0;
	vector<int> order;
	for (int i = 1; i < (1 << rv); ++i) {
		int cnt = 0;
		int x = i;
		while ((x & 1) == 0) {
			cnt++;
			x >>= 1;
		}
		if ((n >> (rv - 1 - cnt)) & 1) {
			order.push_back(cnt);
		}
	}
	assert(length(order) == n);
	vector<vector<int> > as(rv);
	for (int i = 0; i < n; ++i) {
		as[order[i]].push_back(a[i]);
	}
	for (int i = 0; i < rv; ++i) {
		if (as[i].empty()) {
			X[i] = -1;
		} else {
			X[i] = build_binary(as[i]);
		}
	}
}

void create_circuit(int M, vector<int> _a) {
	a = _a;
	C.resize(M + 1);
	n = a.size();
	build();
	C[0] = -1;
	// output(all(X));
	// output(all(Y));
	answer(C, X, Y);
}

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