Submission #792131

#	Time	Username	Problem	Language	Result	Execution time	Memory
792131		irmuun	Saveit (IOI10_saveit)	C++17	25 / 100	256 ms	12732 KiB

encoder

#include<bits/stdc++.h>
#include "grader.h"
#include "encoder.h"
 
using namespace std;
 
#define ll long long
#define pb push_back
#define ff first
#define ss second
#define all(s) s.begin(),s.end()
 
void encode(int N,int H,int P,int *A,int *B){
    vector<int>adj[N];
    for(int i=0;i<P;i++){
        adj[A[i]].pb(B[i]);
        adj[B[i]].pb(A[i]);
    }
    pair<int,int>d[N];
    for(int i=0;i<H;i++){
        for(int j=0;j<N;j++){
            d[j]={-1,j};
        }
        queue<int>q;
        d[i].ff=0;
        q.push(i);
        while(!q.empty()){
            int x=q.front();
            q.pop();
            for(auto y:adj[x]){
                if(d[y].ff==-1){
                    d[y].ff=d[x].ff+1;
                    q.push(y);
                }
            }
        }
        sort(d,d+N);
        for(int j=1;j<N;j++){
            if(d[j].ff==d[j-1].ff){
                encode_bit(0);
            }
            else{
                encode_bit(1);
            }
            for(int k=0;k<10;k++){
                encode_bit(d[j].ss%2);
                d[j].ss/=2;
            }
        }
    }
}

decoder

#include<bits/stdc++.h>
#include "grader.h"
#include "decoder.h"
 
using namespace std;
 
#define ll long long
#define pb push_back
#define ff first
#define ss second
#define all(s) s.begin(),s.end()
 
void decode(int N,int H){
    for(int i=0;i<H;i++){
        hops(i,i,0);
        int dist=0;
        for(int j=1;j<N;j++){
            int city=0;
            dist+=decode_bit();
            for(int k=0;k<10;k++){
                city+=decode_bit()*(1<<k);
            }
            hops(i,city,dist);
        }
    }
}

• Subtask 1: 25 / 25
• Subtask 2: 0 / 25
• Subtask 3: 0 / 25
• Subtask 4: 0 / 25