Submission #224525

#TimeUsernameProblemLanguageResultExecution timeMemory
224525jhnah917Saveit (IOI10_saveit)C++14
50 / 100
363 ms14016 KiB
#include "grader.h"
#include "encoder.h"
#include <bits/stdc++.h>
using namespace std;

int dst[44][1010];
vector<int> g[1010];

void bfs(int st){
    dst[st][st] = 0;
    queue<int> q; q.push(st);
    while(q.size()){
        int now = q.front(); q.pop();
        for(auto nxt : g[now]) if(dst[st][nxt] == -1){
            dst[st][nxt] = dst[st][now] + 1;
            q.push(nxt);
        }
    }
}

void encode(int N, int H, int M, int *v1, int *v2){
    // encode_bit(1);
    // encode_bit(0);
    // return;
    int n = N, m = M, h = H;
    for(int i=0; i<m; i++){
        int s = v1[i] + 1, e = v2[i] + 1;
        g[s].push_back(e); g[e].push_back(s);
    }
    memset(dst, -1, sizeof dst);
    for(int i=1; i<=h; i++) bfs(i);

    for(int i=1; i<=h; i++) for(int j=1; j<=n; j++){
        for(int k=0; k<10; k++) encode_bit(!!(dst[i][j] & (1 << k)));
    }
}

//g++ grader.h grader.cpp encoder.h encoder.cpp decoder.h decoder.cpp -o main -std=c++14
#include "grader.h"
#include "decoder.h"
#include <bits/stdc++.h>
using namespace std;

void decode(int N, int H) {
    // int a = decode_bit();
    // int b = decode_bit();
    // hops(0,0,0);
    // hops(1,2,3);
    int n = N, h = H;
    for(int i=1; i<=h; i++) for(int j=1; j<=n; j++){
        int t = 0;
        for(int k=0; k<10; k++) t += decode_bit() << k;
        hops(i-1, j-1, t);
    }
}

//g++ grader.h grader.cpp encoder.h encoder.cpp decoder.h decoder.cpp -o main -std=c++14
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