Submission #503658

#	Time	Username	Problem	Language	Result	Execution time	Memory
503658		blue	Speedrun (RMI21_speedrun)	C++17	21 / 100	47 ms	788 KiB

speedrun

#include "speedrun.h"
#include <vector>
#include <algorithm>
#include <iostream>
using namespace std;

using vi = vector<int>;
using vvi = vector<vi>;
const int maxN = 1'000;

void assignHints(int subtask, int N, int A[], int B[])
{
    setHintLen(N);

    for(int e = 1; e <= N-1; e++)
    {
        setHint(A[e], B[e], 1);
        setHint(B[e], A[e], 1);
    }
}

int N;

void dfs(int u, int p)
{
    // cerr << "dfs: " << u << '\n';

    vi adj;
    for(int v = 1; v <= N; v++)
    {
        if(v == p) continue;
        if(getHint(v)) adj.push_back(v);
    }

    for(int v: adj)
    {
        goTo(v);
        dfs(v, u);
        goTo(u);
    }

    // for(int v = 1; v <= N; v++)
    // {
    //     if(v == p) continue;
    //     if(getHint(v))
    //     {
    //         goTo(v);
    //         dfs(v, u);
    //         goTo(u);
    //     }
    // }
}

void speedrun(int subtask, int N_, int start)
{
    int l = getLength();

    N = N_;

    dfs(start, 0);
}

Compilation message (stderr)

speedrun.cpp: In function 'void speedrun(int, int, int)':
speedrun.cpp:56:9: warning: unused variable 'l' [-Wunused-variable]
   56 |     int l = getLength();
      |         ^

• Subtask 1: 21 / 21
• Subtask 2: 0 / 8
• Subtask 3: 0 / 19
• Subtask 4: 0 / 12
• Subtask 5: 0 / 40