Submission #1135286

#	Time	Username	Problem	Language	Result	Execution time	Memory
1135286		Gray	Speedrun (RMI21_speedrun)	C++20	0 / 100	0 ms	576 KiB

speedrun

#include "speedrun.h"
#include <bits/stdc++.h>
#define ll long long
#define ull unsigned long long
#define ff first
#define ss second
#define ln "\n"
#define MOD (ll)1e9+7
#define INF (ll)1e18
using namespace std;

vector<vector<ll> > gr;

void dfs(ll u, ll p, vector<ll> &par, vector<ll> &ord){
    ord.push_back(u); par[u]=p;
    for (auto v:gr[u]){
        if (v==p) continue;
        dfs(v, u, par, ord);
    }
}

void assignHints(int subtask, int N, int A[], int B[]) {
    gr.resize(N+1); ll n = N;
    for (ll i=1; i<N; i++) {
        gr[A[i]].push_back(B[i]);
        gr[B[i]].push_back(A[i]);
    }
    vector<ll> par(n+1), ord, data2(n+1);
    dfs(1, -1, par, ord);
    // cout << "Came" << endl;
    for (ll i=0; i<n; i++){
        data2[ord[i]]=ord[(i+1)%n];
    }
    setHintLen(20);
    for (ll i=1; i<=n; i++){
        for (ll j=0; j<10; j++) if ((1ull<<j)&par[i]) setHint(i, j, 1);
        for (ll j=10; j<20; j++) if ((1ull<<(j-10))&data2[i]) setHint(i, j, 1);
    }
    // cout << "Came" << endl;
}

void speedrun(int subtask, int N, int start) {
    for (ll i=0; i<N; i++){
        ll par=0; for (ll j=0; j<10; j++) if (getHint(j)) par+=(1ull<<j);
        ll next=0; for (ll j=10; j<20; j++) if (getHint(j)) next+=(1ull<<(j-10));
        // cout << start << " - " << par << " - " << next << endl;
        while (!goTo(next)){
            goTo(par); par=0;
            for (ll j=0; j<10; j++) if (getHint(j)) par+=(1ull<<j);
        }
        // cout << "ca" << endl;
    }
}

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