제출 #565152

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
565152		MrDeboo	저장 (Saveit) (IOI10_saveit)	C++17	0 / 100	197 ms	10396 KiB

encoder

#include "grader.h"
#include "encoder.h"
#include <bits/stdc++.h>
using namespace std;
void encode(int n, int h, int p, int v1[], int v2[]){
    srand(time(NULL));
    vector<int>vct[n];
    for(int i=0;i<p;i++){
        vct[v1[i]].push_back(v2[i]);
        vct[v2[i]].push_back(v1[i]);
    }
    priority_queue<pair<int,pair<int,int>>>pq;
    map<pair<int,int>,bool>mp;
    for(int i=0;i<10;i++){
        int k=rand()%n;
        deque<pair<int,int>>dq={{0,i}};
        vector<bool>vis(n);
        while(dq.size()){
            pair<int,int>p=dq.front();
            dq.pop_front();
            for(auto &w:vct[p.second]){
                if(vis[w])continue;
                vis[w]=1;
                if(!mp[{min(w,p.second),max(w,p.second)}]){
                    pq.push({rand(),{min(w,p.second),max(w,p.second)}});
                    mp[{min(w,p.second),max(w,p.second)}]=1;
                }
                dq.push_back({p.first+1,w});
            }
        }
    }
    int tot=80000/20;
    while(tot--){
        pair<int,int>pr;
        if(pq.empty())pr={0,0};
        else{
            pr=pq.top().second;
            pq.pop();
        }
        for(int i=0;i<10;i++)encode_bit((!!(pr.first&(1<<i))));
        for(int i=0;i<10;i++)encode_bit((!!(pr.second&(1<<i))));
    }
}

decoder

#include "grader.h"
#include "decoder.h"
#include <bits/stdc++.h>
using namespace std;
void decode(int n, int h) {
    vector<int>vct[n];
    for(int i=0;i<80000/20;i++){
        int a=0,b=0;
        for(int w=0;w<10;w++)a+=(1<<w)*decode_bit();
        for(int w=0;w<10;w++)b+=(1<<w)*decode_bit();
        vct[a].push_back(b);
        vct[b].push_back(a);
    }
    for(int i=0;i<h;i++){
        deque<pair<int,int>>dq={{0,i}};
        vector<bool>vis(n);
        vis[i]=1;
        while(dq.size()){
            pair<int,int>p=dq.front();
            dq.pop_front();
            hops(i,p.second,p.first);
            for(auto &w:vct[p.second]){if(!vis[w]){dq.push_back({p.first+1,w});vis[w]=1;}}
        }
    }
}

컴파일 시 표준 에러 (stderr) 메시지

encoder.cpp: In function 'void encode(int, int, int, int*, int*)':
encoder.cpp:15:13: warning: unused variable 'k' [-Wunused-variable]
   15 |         int k=rand()%n;
      |             ^

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