Submission #644866

#	Time	Username	Problem	Language	Result	Execution time	Memory
644866		PanTkd	Speedrun (RMI21_speedrun)	C++14	0 / 100	200 ms	800 KiB

speedrun

#include "speedrun.h"
#include <iostream>
#include <algorithm>
#include <bitset>
#include <complex>
#include <deque>
#include <fstream>
#include <iomanip>
#include <iterator>
#include <limits>
#include <list>
#include <cstring>
#include <map>
#include <queue>
#include <set>
#include <stack>
#include <string>
#include <vector>
#include <unordered_map>

using namespace std;

typedef long long ll;
typedef vector<ll> vi;
typedef pair<ll,ll> ii;
#ifdef px
    #define p(x) cerr<<#x<<' '<<x<<endl;
#else
    #define p(x) {}
#endif
#define F first
#define S second
#define sz size
#define ls s,m,idx<<1
#define rs m+1,e,idx<<1|1
const ll MOD=ll(1e9)+7;
const ll MAXN=2*ll(1e6);

ll freq[20001];
ll arxi;

vector<vi> Adj;
vi Par,Son;
void dfs(ll s,ll p=-1){
    for(auto x:Adj[s]){
        if(x!=p){
            Par[x]=s;
            Son[s]=x;
            dfs(x,s);
        }
    }
}
void assignHints(int subtask, int N, int A[], int B[]) { 
    setHintLen(20);
    Adj.assign(N+1,vi());
    Par.assign(N+1,0);
    Son.assign(N+1,0);
    for(ll i=1;i<N;i++){
        freq[A[i]]++;
        freq[B[i]]++;
        Adj[A[i]].push_back(B[i]);
        Adj[B[i]].push_back(A[i]);
    }
    for(ll i=1;i<=N;i++){
        if(freq[i]==1){
            arxi=i;
            break;
        }
    }
    p(arxi);
    Par[arxi]=0;
    Son[arxi]=0;

    dfs(arxi,arxi);
    
    for(ll i=1;i<=N;i++){
        for(ll j=0;j<10;j++){
            if((1<<j)&Son[i]){
                setHint(i,j+1,1);
            }else{
                setHint(i,j+1,0);
            }
            if((1<<j)&Par[i]){
                setHint(i,j+11,1);
            }else{
                setHint(i,j+11,0);
            }
        }
        //cout<<i<<"->"<<son<<"<-"<<par<<endl;
        //cout<<i<<"->"<<Son[i]<<"<-"<<Par[i]<<endl;
    }
}
ll l;


void speedrun(int subtask, int N, int start) { /* your solution here */
    ll l=getLength();

    ll curr=start;
    while(curr!=0){
        p(curr);
        ll x=0;
        for(ll j=11;j<=20;j++){
            if(getHint(j))x|=(1<<(j-11));
        }
        curr=x;
        if(curr)
        goTo(curr);
    }
    curr=arxi;
    //cerr<<curr<<endl;
    //goTo(arxi);
    while(curr!=0){
        ll x=0;
        for(ll j=1;j<=10;j++){
            if(getHint(j))x|=(1<<(j-1));
        }
        p(curr);
        curr=x;
        if(curr)
        goTo(curr);
    }
}

Compilation message (stderr)

speedrun.cpp: In function 'void speedrun(int, int, int)':
speedrun.cpp:97:8: warning: unused variable 'l' [-Wunused-variable]
   97 |     ll l=getLength();
      |        ^

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