Submission #476979

#	Time	Username	Problem	Language	Result	Execution time	Memory
476979		wiktoria_bazan	Saveit (IOI10_saveit)	C++14	Compilation error	0 ms	0 KiB

encoder

#include "grader.h"
#include "encoder.h"
#include<iostream>
#include<vector>
#include<queue>
using namespace std;

typedef long long ll;
int const N = 1e3 + 9;
vector<int> G[N];

queue<int>Q;
int warstwa[N];
int ojciec[N];
bool odw[N];
int d[N];

void bfs(int v) {
    odw[v] = 1;
    warstwa[v] = 0;
    Q.push(v);
    while (!Q.empty()) {
        int v = Q.front();
        Q.pop();
        for (int i = 0; i < G[v].size(); i++) {
            int sas = G[v][i];
            if (odw[sas] == 0) {
                odw[sas] = 1;
                warstwa[sas] = warstwa[v] + 1;
                Q.push(sas);
            }
        }
    }
}

void dfs(int v, int o) {
    odw[v] = 0;
    ojciec[v] = o;
    d[v] = warstwa[v] - warstwa[o] + 1;
    for (int i = 0; i < G[v].size(); i++) {
        int sas = G[v][i];
        if (odw[sas] == 1) {
            dfs(sas, v);
        }
    }
}

void ll_to_bits(ll a, int b) {
    int t = 0;
    while (a > 0) {
        encode_bit(a % 2);
        a /= 2;
        t++;
    }
    while (t < b) {
        encode_bit(0);
        t++;
    }
}

void koduj_drzewo(int nv) {
    for (int v = 0; v < nv; v++) {
        ll_to_bits(ojciec[v], 10);
    }
}

void odl(int nv) {
    ll a = 0, mn = 1;
    for (int v = 0; v < nv; v++) {
        a += mn * d[v];
        mn *= 3;
    }
    ll_to_bits(a, 58);
}

void encode(int nv, int nh, int ne, int* v1, int* v2) {
    for (int i = 0; i < ne; i++) {
        G[v1[i]].push_back(v2[i]);
        G[v2[i]].push_back(v1[i]);
    }
    bfs(0);
    dfs(0, 0);
    koduj_drzewo(nv);
    odl(nv);
    for (int h = 1; h < nh; h++) {
        bfs(h);
        odl(nv);
    }
    return;
}

decoder

#include "grader.h"
#include "decoder.h"
#include<iostream>
#include<vector>

int const N = 1e3 + 9;
int O[N];
vector<int>G[N];
int odl[N];
int d[N];

bool odw[N];
bool ost = true;

void policz(int v){
  odw[v] = ost;
  d[v] = d[O[v]] + odl[v];
  for(int i = 0; i < G[v].size(); i++){
    int syn = G[v][i];
    if(odw[syn] != ost){
      policz(syn);
    }
  }
}

void fczytaj_ojcuf(int nv){
  for(int v = 0; v < nv; v++){
    int o = 0, mn = 1;
    for(int i = 0; i < 10; i++){
      int bit = decode_bit();
      o += mn * bit;
      mn <<= 1;
    }
    G[o].push_back(v);
  }
}

void odzyskaj(int a, int nv){
  int t = 0;
  while(a > 0){
    odl[t] = (a % 3) - 1;
    a /= 3;
    t++;
  }
  while(t < nv){
    odl[t] = -1;
    t++;
  }
}

void wypisz(int nv, int h){
  for(int v = 0; v < nv; v++){
    hops(h, v, d[v]);
  }
}

void fczytaj_odl(int nh, int nv){
  for(int h = 0; h < nh; h++){
    int a = 0, mn = 1;
    for(int i = 0; i < 58; i++){
      int bit = decode_bit();
      a += mn * bit;
      mn <<= 1;
    }
    odzyskaj(a, nv);
    d[h] = 0;
    policz(h);
    ost = !ost;
    wypisz(nv, h);

  }
}

void decode(int nv, int nh) {
  fczytaj_ojcuf(nv);
  fczytaj_odl(nh);
}

Compilation message (stderr)

encoder.cpp: In function 'void bfs(int)':
encoder.cpp:25:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   25 |         for (int i = 0; i < G[v].size(); i++) {
      |                         ~~^~~~~~~~~~~~~
encoder.cpp: In function 'void dfs(int, int)':
encoder.cpp:40:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   40 |     for (int i = 0; i < G[v].size(); i++) {
      |                     ~~^~~~~~~~~~~~~

decoder.cpp:8:1: error: 'vector' does not name a type
    8 | vector<int>G[N];
      | ^~~~~~
decoder.cpp: In function 'void policz(int)':
decoder.cpp:18:22: error: 'G' was not declared in this scope
   18 |   for(int i = 0; i < G[v].size(); i++){
      |                      ^
decoder.cpp: In function 'void fczytaj_ojcuf(int)':
decoder.cpp:34:5: error: 'G' was not declared in this scope
   34 |     G[o].push_back(v);
      |     ^
decoder.cpp: In function 'void decode(int, int)':
decoder.cpp:76:17: error: too few arguments to function 'void fczytaj_odl(int, int)'
   76 |   fczytaj_odl(nh);
      |                 ^
decoder.cpp:57:6: note: declared here
   57 | void fczytaj_odl(int nh, int nv){
      |      ^~~~~~~~~~~