Submission #1244745

#	Time	Username	Problem	Language	Result	Execution time	Memory
1244745		JoenPoenMan	Mechanical Doll (IOI18_doll)	C++20	53 / 100	84 ms	13224 KiB

doll

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

typedef vector<int> vi;
typedef vector<vi> vvi;

int makeswitch(vi &outs, vi &x, vi &y)
{
    if(outs.size() == 1)
        return outs[0];
        
    int switchindex = -x.size() - 1;
    x.push_back(0);
    y.push_back(0);

    if(outs.size() % 2 == 1)
    {
        outs.insert(outs.end() - 2, switchindex);
    }

    vi a, b;
    for(int i = 0; i < outs.size(); i += 2)
    {
        a.push_back(outs[i]);
        b.push_back(outs[i+1]);
    }
    x[-switchindex-1] = makeswitch(a, x, y);
    y[-switchindex-1] = makeswitch(b, x, y);
    return switchindex;
}

void create_circuit(int m, vi a) {
    int n = a.size();
    vvi next(m+1);
    next[0].push_back(a[0]);
    for(int i = 1; i < n; i++)
    {
        next[a[i-1]].push_back(a[i]);/*  */
    }
    next[a[n-1]].push_back(0);

    vi c(m+1), x, y;

    for(int i = 0; i < m + 1; i++)
    {
        if(next[i].empty())
            continue;
        c[i] = makeswitch(next[i], x, y);
    }

    answer(c, x, y);
}

• Subtask 1: 2 / 2
• Subtask 2: 4 / 4
• Subtask 3: 10 / 10
• Subtask 4: 0 / 10
• Subtask 5: 9 / 18
• Subtask 6: 28 / 56