Submission #286180

#	Time	Username	Problem	Language	Result	Execution time	Memory
286180		ne4eHbKa	Mechanical Doll (IOI18_doll)	C++17	6 / 100	326 ms	19592 KiB

doll

#include "doll.h"
#include <bits/stdc++.h>
using namespace std;
typedef vector<int> vi;

namespace solution {

map<int, list<int> > f;

vi c, x, y;
int s;

int swicch(list<int> &t) {
    int i = s++;
    x.push_back(0);
    y.push_back(0);
    list<int> a, b;
    int cnt = 0;
    for(int &j : t)
        (cnt++ & 1 ? b : a).push_back(j);
    x[i] = a.size() - 1 ? swicch(a) : a.front();
    y[i] = b.size() - 1 ? swicch(b) : b.front();
    return -(i + 1);
}

void trigger(int i) {
    if(f.find(i) == f.end()) {
        c[i] = 0;
        return;
    }
    list<int> &t = f[i];
    if(t.size() == 1) {
        c[i] = t.front();
        return;
    }
    c[i] = swicch(t);
}

}

void create_circuit (int m, vi a) {
    using namespace solution;
    int n = a.size();
    f.clear();
    for(int i = 1; i < n; ++i)
        f[a[i - 1]].push_back(a[i]);
    f[a.back()].push_back(0);
    c.resize(m + 1);
    x.clear();
    y.clear();
    s = 0;
    c[0] = a.front();
    for(int i = 1; i <= m; ++i)
        trigger(i);
    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