Submission #506158

# Submission time Handle Problem Language Result Execution time Memory
506158 2022-01-11T18:21:00 Z jerzyk Saveit (IOI10_saveit) C++17
Compilation error
0 ms 0 KB
#include "grader.h"
#include "encoder.h"
#include<bits/stdc++.h>

typedef long long ll;
using namespace std;
const int N = 1000 + 7;
vector<int>ed[N];
int tab[38][1000 + 7], ws[N];

ll Return3(int v, int h)
{
    ll w, m;
    for(int i = 1; i <= h; ++i)
    {
        if(tab[i][v] == tab[i][ws[i]])
            m = 1;
        if(tab[i][v] > tab[i][ws[i]])
            m = 2;
        w += m * pow(3LL, (ll)i - 1);
    }
    return w;
}

void PrintBits(ll x, int l)
{
    for(int i = 1; i <= l; ++i)
    {
        encode_bit(x % 2);
        x /= 2;
    }
}

void DFS(int v)
{
    for(int i = 0; i < (int)ed[v].size(); ++i)
    {
        if(ws[ed[v][i]] == 0)
        {
            ws[ed[v][i]] = v;
            DFS(ed[v][i]);
        }
    }
}

void BFS(int n, int s)
{
    int v;
    queue<int> q;
    for(int i = 1; i <= n; ++i)
        tab[s][i] = N * 2;
    tab[s][s] = 0;
    q.push(s);
    while(q.size() > 0)
    {
        v = q.front();
        q.pop();
        for(int i = 0; i < (int)ed[v].size(); ++i)
        {
            if(tab[s][ed[v][i]] > tab[s][v] + 1)
            {
                tab[s][ed[v][i]] = tab[s][v] + 1;
                q.push(ed[v][i]);
            }
        }
    }
}

void encode(int n, int h, int m, int* a, int* b)
{
    for(int i = 0; i < m; ++i)
    {
        ed[a[i] + 1].push_back(b[i] + 1);
        ed[a[i] + 1].push_back(b[i] + 1);
    }
    for(int i = 1; i <= h; ++i)
        BFS(n, i);
    ws[1] = 1;
    DFS(1);
    for(int i = 2; i <= h; ++i)
        cout << PrintBits(tab[i][1], 10);
    for(int i = 2; i <= n; ++i)
    {
        cout << PrintBits(ws[i], 10);       
        cout << PrintBits(Return3(i, h), 58);
    }
}
#include "grader.h"
#include "encoder.h"
#include<bits/stdc++.h>

using namespace std;
typedef long long ll;
const int N = 10000 + 7;
int odl[37][N], dod[37][N], ws[N];
vector<int>ed[N];

void DFS(int v, int h)
{
    for(int i = 1; i <= h; ++i)
        odl[i][v] = dod[i][v] + odl[i][ws[v]];
    for(int i = 0; i < (int)ed[v].size(); ++i)
        DFS(ed[v][i]);
}

void Dod(ll l, int v, int h)
{
    for(int i = 1; i <= h; ++i)
    {
        if(l % 3LL == 0)
            dod[i][v] = -1;
        if(l % 3LL == 2)
            dod[i][v] = 1;
    }
}

ll ReadBits(int n)
{
    int b;
    ll w = 0LL;
    for(int i = 0; i < n; ++i)
    {
        b = decode_bit();
        w += pow(2LL, j) * b;
    }
    return w;
}

void decode(int n, int h)
{
    int b;
    ll x, l;
    for(int i = 2; i <= h; ++i)
        odl[i][1] = ReadBits(10);
    for(int i = 2; i <= n; ++i)
    {
        ws[i] = ReadBits(10);
        ed[ws[i]].push_back(i);
        Dod(ReadBits(58), i, h);
    }
    DFS(1);
    for(int i = 1; i <= h; ++i)
        for(int j = 1; j <= n; ++j)
            hops(i - 1, j - 1, odl[i][j]);
}

Compilation message

encoder.cpp: In function 'll Return3(int, int)':
encoder.cpp:16:32: error: reference to 'ws' is ambiguous
   16 |         if(tab[i][v] == tab[i][ws[i]])
      |                                ^~
In file included from /usr/include/c++/10/istream:991,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from encoder.cpp:3:
/usr/include/c++/10/bits/istream.tcc:1024:5: note: candidates are: 'template<class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::ws(std::basic_istream<_CharT, _Traits>&)'
 1024 |     ws(basic_istream<_CharT, _Traits>& __in)
      |     ^~
encoder.cpp:9:24: note:                 'int ws [1007]'
    9 | int tab[38][1000 + 7], ws[N];
      |                        ^~
encoder.cpp:18:31: error: reference to 'ws' is ambiguous
   18 |         if(tab[i][v] > tab[i][ws[i]])
      |                               ^~
In file included from /usr/include/c++/10/istream:991,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from encoder.cpp:3:
/usr/include/c++/10/bits/istream.tcc:1024:5: note: candidates are: 'template<class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::ws(std::basic_istream<_CharT, _Traits>&)'
 1024 |     ws(basic_istream<_CharT, _Traits>& __in)
      |     ^~
encoder.cpp:9:24: note:                 'int ws [1007]'
    9 | int tab[38][1000 + 7], ws[N];
      |                        ^~
encoder.cpp: In function 'void DFS(int)':
encoder.cpp:38:12: error: reference to 'ws' is ambiguous
   38 |         if(ws[ed[v][i]] == 0)
      |            ^~
In file included from /usr/include/c++/10/istream:991,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from encoder.cpp:3:
/usr/include/c++/10/bits/istream.tcc:1024:5: note: candidates are: 'template<class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::ws(std::basic_istream<_CharT, _Traits>&)'
 1024 |     ws(basic_istream<_CharT, _Traits>& __in)
      |     ^~
encoder.cpp:9:24: note:                 'int ws [1007]'
    9 | int tab[38][1000 + 7], ws[N];
      |                        ^~
encoder.cpp:40:13: error: reference to 'ws' is ambiguous
   40 |             ws[ed[v][i]] = v;
      |             ^~
In file included from /usr/include/c++/10/istream:991,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from encoder.cpp:3:
/usr/include/c++/10/bits/istream.tcc:1024:5: note: candidates are: 'template<class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::ws(std::basic_istream<_CharT, _Traits>&)'
 1024 |     ws(basic_istream<_CharT, _Traits>& __in)
      |     ^~
encoder.cpp:9:24: note:                 'int ws [1007]'
    9 | int tab[38][1000 + 7], ws[N];
      |                        ^~
encoder.cpp: In function 'void encode(int, int, int, int*, int*)':
encoder.cpp:78:5: error: reference to 'ws' is ambiguous
   78 |     ws[1] = 1;
      |     ^~
In file included from /usr/include/c++/10/istream:991,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from encoder.cpp:3:
/usr/include/c++/10/bits/istream.tcc:1024:5: note: candidates are: 'template<class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::ws(std::basic_istream<_CharT, _Traits>&)'
 1024 |     ws(basic_istream<_CharT, _Traits>& __in)
      |     ^~
encoder.cpp:9:24: note:                 'int ws [1007]'
    9 | int tab[38][1000 + 7], ws[N];
      |                        ^~
encoder.cpp:81:14: error: no match for 'operator<<' (operand types are 'std::ostream' {aka 'std::basic_ostream<char>'} and 'void')
   81 |         cout << PrintBits(tab[i][1], 10);
      |         ~~~~ ^~ ~~~~~~~~~~~~~~~~~~~~~~~~
      |         |                |
      |         |                void
      |         std::ostream {aka std::basic_ostream<char>}
In file included from /usr/include/c++/10/istream:39,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from encoder.cpp:3:
/usr/include/c++/10/ostream:108:7: note: candidate: 'std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(std::basic_ostream<_CharT, _Traits>::__ostream_type& (*)(std::basic_ostream<_CharT, _Traits>::__ostream_type&)) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>]'
  108 |       operator<<(__ostream_type& (*__pf)(__ostream_type&))
      |       ^~~~~~~~
/usr/include/c++/10/ostream:108:36: note:   no known conversion for argument 1 from 'void' to 'std::basic_ostream<char>::__ostream_type& (*)(std::basic_ostream<char>::__ostream_type&)' {aka 'std::basic_ostream<char>& (*)(std::basic_ostream<char>&)'}
  108 |       operator<<(__ostream_type& (*__pf)(__ostream_type&))
      |                  ~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/10/ostream:117:7: note: candidate: 'std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(std::basic_ostream<_CharT, _Traits>::__ios_type& (*)(std::basic_ostream<_CharT, _Traits>::__ios_type&)) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>; std::basic_ostream<_CharT, _Traits>::__ios_type = std::basic_ios<char>]'
  117 |       operator<<(__ios_type& (*__pf)(__ios_type&))
      |       ^~~~~~~~
/usr/include/c++/10/ostream:117:32: note:   no known conversion for argument 1 from 'void' to 'std::basic_ostream<char>::__ios_type& (*)(std::basic_ostream<char>::__ios_type&)' {aka 'std::basic_ios<char>& (*)(std::basic_ios<char>&)'}
  117 |       operator<<(__ios_type& (*__pf)(__ios_type&))
      |                  ~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~
/usr/include/c++/10/ostream:127:7: note: candidate: 'std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(std::ios_base& (*)(std::ios_base&)) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>]'
  127 |       operator<<(ios_base& (*__pf) (ios_base&))
      |       ^~~~~~~~
/usr/include/c++/10/ostream:127:30: note:   no known conversion for argument 1 from 'void' to 'std::ios_base& (*)(std::ios_base&)'
  127 |       operator<<(ios_base& (*__pf) (ios_base&))
      |                  ~~~~~~~~~~~~^~~~~~~~~~~~~~~~~
/usr/include/c++/10/ostream:166:7: note: candidate: 'std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(long int) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>]'
  166 |       operator<<(long __n)
      |       ^~~~~~~~
/usr/include/c++/10/ostream:166:23: note:   no known conversion for argument 1 from 'void' to 'long int'
  166 |       operator<<(long __n)
      |                  ~~~~~^~~
/usr/include/c++/10/ostream:170:7: note: candidate: 'std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(long unsigned int) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>]'
  170 |       operator<<(unsigned long __n)
      |       ^~~~~~~~
/usr/include/c++/10/ostream:170:32: note:   no known conversion for argument 1 from 'void' to 'long unsigned int'
  170 |       operator<<(unsigned long __n)
      |                  ~~~~~~~~~~~~~~^~~
/usr/include/c++/10/ostream:174:7: note: candidate: 'std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(bool) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>]'
  174 |       operator<<(bool __n)
      |       ^~~~~~~~
/usr/include/c++/10/ostream:174:23: note:   no known conversion for argument 1 from 'void' to 'bool'
  174 |       operator<<(bool __n)
      |                  ~~~~~^~~
In file included from /usr/include/c++/10/ostream:784,
                 from /usr/include/c++/10/istream:39,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from encoder.cpp:3:
/usr/include/c++/10/bits/ostream.tcc:91:5: note: candidate: 'std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT, _Traits>::operator<<(short int) [with _CharT = char; _Traits = std::char_traits<char>]'
   91 |     basic_ostream<_CharT, _Traits>::
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/10/bits/ostream.tcc:92:22: note:   no known conversion for argument 1 from 'void' to 'short int'
   92 |     operator<<(short __n)
      |                ~~~~~~^~~
In file included from /usr/include/c++/10/istream:39,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from encoder.cpp:3:
/usr/include/c++/10/ostream:181:7: note: candidate: 'std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(short unsigned int) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>]'
  181 |       operator<<(unsigned short __n)
      |       ^~~~~~~~
/usr/include/c++/10/ostream:181:33: note:   no known conversion for argument 1 from 'void' to 'short unsigned int'
  181 |       operator<<(unsigned short __n)
      |                  ~~~~~~~~~~~~~~~^~~
In file included from /usr/include/c++/10/ostream:784,
                 from /usr/include/c++/10/istream:39,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from encoder.cpp:3:
/usr/include/c++/10/bits/ostream.tcc:105:5: note: candidate: 'std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT, _Traits>::operator<<(int) [with _CharT = char; _Traits = std::char_traits<char>]'
  105 |     basic_ostream<_CharT, _Traits>::
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/10/bits/ostream.tcc:106:20: note:   no known conversion for argument 1 from 'void' to 'int'
  106 |     operator<<(int __n)
      |                ~~~~^~~
In file included from /usr/include/c++/10/istream:39,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from encoder.cpp:3:
/usr/include/c++/10/ostream:192:7: note: candidate: 'std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(unsigned int) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>]'
  192 |       operator<<(unsigned int __n)
      |       ^~~~~~~~
/usr/include/c++/10/ostream:192:31: note:   no known conversion for argument 1 from 'void' to 'unsigned int'
  192 |       operator<<(unsigned int __n)
      |                  ~~~~~~~~~~~~~^~~
/usr/include/c++/10/ostream:201:7: note: candidate: 'std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(long long int) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>]'
  201 |       operator<<(long long __n)
      |       ^~~~~~~~
/usr/include/c++/10/ostream:201:28: note:   no known conversion for argument 1 from 'void' to 'long long int'
  201 |       operator<<(long long __n)
      |                  ~~~~~~~~~~^~~
/usr/include/c++/10/ostream:205:7: note: candidate: 'std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(long long unsigned int) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>]'
  205 |       operator<<(unsigned long long __n)
      |       ^~~~~~~~
/usr/include/c++/10/ostream:205:37: note:   no known conversion for argument 1 from 'void' to 'long long unsigned int'
  205 |       operator<<(unsigned long long __n)
      |                  ~~~~~~~~~~~~~~~~~~~^~~
/usr/include/c++/10/ostream:220:7: note: candidate: 'std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(double) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>]'
  220 |       operator<<(double __f)
      |       ^~~~~~~~
/usr/include/c++/10/ostream:220:25: note:   no known conversion for argument 1 from 'void' to 'double'
  220 |       operator<<(double __f)
      |                  ~~~~~~~^~~
/usr/include/c++/10/ostream:224:7: note: candidate: 'std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(float) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>]'
  224 |       operator<<(float __f)
      |       ^~~~~~~~
/usr/include/c++/10/ostream:224:24: note:   no known conversion for argument 1 from 'void' to 'float'
  224 |       operator<<(float __f)
      |                  ~~~~~~^~~
/usr/include/c++/10/ostream:232:7: note: candidate: 'std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(long double) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>]'
  232 |       operator<<(long double __f)
      |       ^~~~~~~~
/usr/include/c++/10/ostream:232:30: note:   no known conversion for argument 1 from 'void' to 'long double'
  232 |       operator<<(long double __f)
      |                  ~~~~~~~~~~~~^~~
/usr/include/c++/10/ostream:245:7: note: candidate: 'std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(const void*) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>]'
  245 |       operator<<(const void* __p)
      |       ^~~~~~~~
/usr/include/c++/10/ostream:245:30: note:   no known conversion for argument 1 from 'void' to 'const void*'
  245 |       operator<<(const void* __p)
      |                  ~~~~~~~~~~~~^~~
/usr/include/c++/10/ostream:250:7: note: candidate: 'std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(std::nullptr_t) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__ostream_type = std::basic_ostream<char>; std::nullptr_t = std::nullptr_t]'
  250 |       operator<<(nullptr_t)
      |       ^~~~~~~~
/usr/include/c++/10/ostream:250:18: note:   no known conversion for argument 1 from 'void' to 'std::nullptr_t'
  250 |       operator<<(nullptr_t)
      |                  ^~~~~~~~~
In file included from /usr/include/c++/10/ostream:784,
                 from /usr/include/c++/10/istream:39,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from encoder.cpp:3:
/usr/include/c++/10/bits/ostream.tcc:119:5: note: candidate: 'std::basic_ostream<_CharT, _Traits>& std::basic_ostream<_CharT, _Traits>::operator<<(std::basic_ostream<_CharT, _Traits>::__streambuf_type*) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_ostream<_CharT, _Traits>::__streambuf_type = std::basic_streambuf<char>]'
  119 |     basic_ostream<_CharT, _Traits>::
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/10/bits/ostream.tcc:120:34: note:   no known conversion for argument 1 from 'void' to 'std::basic_ostream<char>::__streambuf_type*' {aka 'std::basic_streambuf<char>*'}
  120 |     operator<<(__streambuf_type* __sbin)
      |                ~~~~~~~~~~~~~~~~~~^~~~~~
In file included from /usr/include/c++/10/regex:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:110,
                 from encoder.cpp:3:
/usr/include/c++/10/bits/regex.h:1647:5: note: candidate: 'template<class _Ch_type, class _Ch_traits, class _Bi_iter> std::basic_ostream<_CharT, _Traits>& std::__cxx11::operator<<(std::basic_ostream<_CharT, _Traits>&, const std::__cxx11::sub_match<_Bi_iter>&)'
 1647 |     operator<<(basic_ostream<_Ch_type, _Ch_traits>& __os,
      |     ^~~~~~~~
/usr/include/c++/10/bits/regex.h:1647:5: note:   template argument deduction/substitution failed:
encoder.cpp:81:40: note:   mismatched types 'const std::__cxx11::sub_match<_Bi_iter>' and 'void'
   81 |         cout << PrintBits(tab[i][1], 10);
      |                                        ^
In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:45,
                 from encoder.cpp:3:
/usr/include/c++/10/cstddef:125:5: note: candidate: 'template<class _IntegerType> constexpr std::__byte_op_t<_IntegerType> std::operator<<(std::byte, _IntegerType)'
  125 |     operator<<(byte __b, _IntegerType __shift) noexcept
      |     ^~~~~~~~
/usr/include/c++/10/cstddef:125:5: note:   template argument deduction/substitution failed:
encoder.cpp:81:9: note:   cannot convert 'std::cout' (type 'std::ostream' {aka 'std::basic_ostream<char>'}) to type 'std::byte'
   81 |         cout << PrintBits(tab[i][1], 10);
      |         ^~~~
In file included from /usr/incl

decoder.cpp: In function 'void DFS(int, int)':
decoder.cpp:14:40: error: reference to 'ws' is ambiguous
   14 |         odl[i][v] = dod[i][v] + odl[i][ws[v]];
      |                                        ^~
In file included from /usr/include/c++/10/istream:991,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from decoder.cpp:3:
/usr/include/c++/10/bits/istream.tcc:1024:5: note: candidates are: 'template<class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::ws(std::basic_istream<_CharT, _Traits>&)'
 1024 |     ws(basic_istream<_CharT, _Traits>& __in)
      |     ^~
decoder.cpp:8:29: note:                 'int ws [10007]'
    8 | int odl[37][N], dod[37][N], ws[N];
      |                             ^~
decoder.cpp:16:21: error: too few arguments to function 'void DFS(int, int)'
   16 |         DFS(ed[v][i]);
      |                     ^
decoder.cpp:11:6: note: declared here
   11 | void DFS(int v, int h)
      |      ^~~
decoder.cpp: In function 'll ReadBits(int)':
decoder.cpp:37:23: error: 'j' was not declared in this scope
   37 |         w += pow(2LL, j) * b;
      |                       ^
decoder.cpp: In function 'void decode(int, int)':
decoder.cpp:50:9: error: reference to 'ws' is ambiguous
   50 |         ws[i] = ReadBits(10);
      |         ^~
In file included from /usr/include/c++/10/istream:991,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from decoder.cpp:3:
/usr/include/c++/10/bits/istream.tcc:1024:5: note: candidates are: 'template<class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::ws(std::basic_istream<_CharT, _Traits>&)'
 1024 |     ws(basic_istream<_CharT, _Traits>& __in)
      |     ^~
decoder.cpp:8:29: note:                 'int ws [10007]'
    8 | int odl[37][N], dod[37][N], ws[N];
      |                             ^~
decoder.cpp:51:12: error: reference to 'ws' is ambiguous
   51 |         ed[ws[i]].push_back(i);
      |            ^~
In file included from /usr/include/c++/10/istream:991,
                 from /usr/include/c++/10/sstream:38,
                 from /usr/include/c++/10/complex:45,
                 from /usr/include/c++/10/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
                 from decoder.cpp:3:
/usr/include/c++/10/bits/istream.tcc:1024:5: note: candidates are: 'template<class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::ws(std::basic_istream<_CharT, _Traits>&)'
 1024 |     ws(basic_istream<_CharT, _Traits>& __in)
      |     ^~
decoder.cpp:8:29: note:                 'int ws [10007]'
    8 | int odl[37][N], dod[37][N], ws[N];
      |                             ^~
decoder.cpp:54:10: error: too few arguments to function 'void DFS(int, int)'
   54 |     DFS(1);
      |          ^
decoder.cpp:11:6: note: declared here
   11 | void DFS(int v, int h)
      |      ^~~
decoder.cpp:44:9: warning: unused variable 'b' [-Wunused-variable]
   44 |     int b;
      |         ^
decoder.cpp:45:8: warning: unused variable 'x' [-Wunused-variable]
   45 |     ll x, l;
      |        ^
decoder.cpp:45:11: warning: unused variable 'l' [-Wunused-variable]
   45 |     ll x, l;
      |           ^