Submission #792714

#	Time	Username	Problem	Language	Result	Execution time	Memory
792714		irmuun	Saveit (IOI10_saveit)	C++17	Compilation error	0 ms	0 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()

struct dsu{
    vector<int>p,sz;
    dsu(int n){
        p.resize(n);
        iota(p.begin(),p.end(),0);
        sz.resize(n);
        fill(sz.begin(),sz.end(),1);
    }
    int find(ll x){
        if(p[x]==x){
            return x;
        }
        return p[x]=find(p[x]);
    }
    bool same(int x,int y){
        x=find(x);
        y=find(y);
        if(x==y){
            return true;
        }
        else{
            return false;
        }
    }
    void merge(int x,int y){
        x=find(x);
        y=find(y);
        if(x!=y){
            if(sz[x]<sz[y]){
                swap(x,y);
            }
            sz[x]+=sz[y];
            p[y]=x;
        }
    }
};

void encode(int N,int H,int P,int *A,int *B){
    vector<int>par[N];
    vector<int>adj[N];
    for(int i=0;i<P;i++){
        adj[A[i]].pb(B[i]);
        adj[B[i]].pb(A[i]);
    }
    dsu ds(N);
    vector<int>d[N],used(N,0);
    for(int i=0;i<P;i++){
        if(ds.same(A[i],B[i])==false){
            ds.merge(A[i],B[i]);
            d[A[i]].pb(B[i]);
            d[B[i]].pb(A[i]);
        }
    }
    vector<int>ord;
    function <void(int)> dfs=[&](int x){
        used[x]=1;
        ord.pb(x);
        for(auto y:d[x]){
            if(used[y]==0){
                par[y]=x;
                dfs(y);
            }
        }
    };
    par[0]=-1;
    dfs(0);
    assert(ord.size()==N);
    for(auto x:ord){
        for(int i=0;i<10;i++){
            encode_bit(x%2);
            x/=2;
        }
    }
    int dist[N];
    for(int i=0;i<H;i++){
        fill(dist,dist+N,-1);
        queue<int>q;
        dist[i]=0;
        q.push(i);
        while(!q.empty()){
            int x=q.front();
            q.pop();
            for(auto y:adj[x]){
                if(dist[y]==-1){
                    dist[y]=dist[x]+1;
                    q.push(y);
                }
            }
        }
        for(int j=0;j<N;j++){
            if(j==0){
                int y=dist[ord[0]];
                for(int k=0;k<10;k++){
                    encode_bit(y%2);
                    y/=2;
                }
            }
            else{
                if(dist[ord[j]]==dist[par[ord[j]]]-1){
                    encode_bit(0);
                    encode_bit(0);
                }
                if(dist[ord[j]]==dist[par[ord[j]]]){
                    encode_bit(0);
                    encode_bit(1);
                }
                if(dist[ord[j]]==dist[par[ord[j]]+1){
                    encode_bit(1);
                    encode_bit(1);
                }
            }
        }
    }
}

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){
    int ver[N];
    for(int i=0;i<N;i++){
        ver[i]=0;
        for(int j=0;j<10;j++){
            ver[i]+=(1<<j)*decode_bit();
        }
    }
    for(int i=0;i<H;i++){
        int dist=0;
        for(int j=0;j<10;j++){
            dist+=(1<<j)*decode_bit();
        }
        hops(i,ver[0],dist);
        for(int j=1;j<N;j++){
            int x=0;
            x+=decode_bit();
            x+=decode_bit();
            if(x==0){
                dist--;
            }
            if(x==2){
                dist++;
            }
            hops(i,ver[j],dist);
        }
    }
}

Compilation message (stderr)

encoder.cpp: In lambda function:
encoder.cpp:72:24: error: no match for 'operator=' (operand types are 'std::vector<int>' and 'int')
   72 |                 par[y]=x;
      |                        ^
In file included from /usr/include/c++/10/vector:72,
                 from /usr/include/c++/10/functional:62,
                 from /usr/include/c++/10/pstl/glue_algorithm_defs.h:13,
                 from /usr/include/c++/10/algorithm:74,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from encoder.cpp:1:
/usr/include/c++/10/bits/vector.tcc:198:5: note: candidate: 'std::vector<_Tp, _Alloc>& std::vector<_Tp, _Alloc>::operator=(const std::vector<_Tp, _Alloc>&) [with _Tp = int; _Alloc = std::allocator<int>]'
  198 |     vector<_Tp, _Alloc>::
      |     ^~~~~~~~~~~~~~~~~~~
/usr/include/c++/10/bits/vector.tcc:199:42: note:   no known conversion for argument 1 from 'int' to 'const std::vector<int>&'
  199 |     operator=(const vector<_Tp, _Alloc>& __x)
      |               ~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~
In file included from /usr/include/c++/10/vector:67,
                 from /usr/include/c++/10/functional:62,
                 from /usr/include/c++/10/pstl/glue_algorithm_defs.h:13,
                 from /usr/include/c++/10/algorithm:74,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from encoder.cpp:1:
/usr/include/c++/10/bits/stl_vector.h:709:7: note: candidate: 'std::vector<_Tp, _Alloc>& std::vector<_Tp, _Alloc>::operator=(std::vector<_Tp, _Alloc>&&) [with _Tp = int; _Alloc = std::allocator<int>]'
  709 |       operator=(vector&& __x) noexcept(_Alloc_traits::_S_nothrow_move())
      |       ^~~~~~~~
/usr/include/c++/10/bits/stl_vector.h:709:26: note:   no known conversion for argument 1 from 'int' to 'std::vector<int>&&'
  709 |       operator=(vector&& __x) noexcept(_Alloc_traits::_S_nothrow_move())
      |                 ~~~~~~~~~^~~
/usr/include/c++/10/bits/stl_vector.h:730:7: note: candidate: 'std::vector<_Tp, _Alloc>& std::vector<_Tp, _Alloc>::operator=(std::initializer_list<_Tp>) [with _Tp = int; _Alloc = std::allocator<int>]'
  730 |       operator=(initializer_list<value_type> __l)
      |       ^~~~~~~~
/usr/include/c++/10/bits/stl_vector.h:730:46: note:   no known conversion for argument 1 from 'int' to 'std::initializer_list<int>'
  730 |       operator=(initializer_list<value_type> __l)
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~
encoder.cpp: In function 'void encode(int, int, int, int*, int*)':
encoder.cpp:77:13: error: no match for 'operator=' (operand types are 'std::vector<int>' and 'int')
   77 |     par[0]=-1;
      |             ^
In file included from /usr/include/c++/10/vector:72,
                 from /usr/include/c++/10/functional:62,
                 from /usr/include/c++/10/pstl/glue_algorithm_defs.h:13,
                 from /usr/include/c++/10/algorithm:74,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from encoder.cpp:1:
/usr/include/c++/10/bits/vector.tcc:198:5: note: candidate: 'std::vector<_Tp, _Alloc>& std::vector<_Tp, _Alloc>::operator=(const std::vector<_Tp, _Alloc>&) [with _Tp = int; _Alloc = std::allocator<int>]'
  198 |     vector<_Tp, _Alloc>::
      |     ^~~~~~~~~~~~~~~~~~~
/usr/include/c++/10/bits/vector.tcc:199:42: note:   no known conversion for argument 1 from 'int' to 'const std::vector<int>&'
  199 |     operator=(const vector<_Tp, _Alloc>& __x)
      |               ~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~
In file included from /usr/include/c++/10/vector:67,
                 from /usr/include/c++/10/functional:62,
                 from /usr/include/c++/10/pstl/glue_algorithm_defs.h:13,
                 from /usr/include/c++/10/algorithm:74,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from encoder.cpp:1:
/usr/include/c++/10/bits/stl_vector.h:709:7: note: candidate: 'std::vector<_Tp, _Alloc>& std::vector<_Tp, _Alloc>::operator=(std::vector<_Tp, _Alloc>&&) [with _Tp = int; _Alloc = std::allocator<int>]'
  709 |       operator=(vector&& __x) noexcept(_Alloc_traits::_S_nothrow_move())
      |       ^~~~~~~~
/usr/include/c++/10/bits/stl_vector.h:709:26: note:   no known conversion for argument 1 from 'int' to 'std::vector<int>&&'
  709 |       operator=(vector&& __x) noexcept(_Alloc_traits::_S_nothrow_move())
      |                 ~~~~~~~~~^~~
/usr/include/c++/10/bits/stl_vector.h:730:7: note: candidate: 'std::vector<_Tp, _Alloc>& std::vector<_Tp, _Alloc>::operator=(std::initializer_list<_Tp>) [with _Tp = int; _Alloc = std::allocator<int>]'
  730 |       operator=(initializer_list<value_type> __l)
      |       ^~~~~~~~
/usr/include/c++/10/bits/stl_vector.h:730:46: note:   no known conversion for argument 1 from 'int' to 'std::initializer_list<int>'
  730 |       operator=(initializer_list<value_type> __l)
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~
In file included from /usr/include/c++/10/cassert:44,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:33,
                 from encoder.cpp:1:
encoder.cpp:79:22: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   79 |     assert(ord.size()==N);
      |            ~~~~~~~~~~^~~
encoder.cpp:111:38: error: no match for 'operator[]' (operand types are 'int [N]' and 'std::vector<int>')
  111 |                 if(dist[ord[j]]==dist[par[ord[j]]]-1){
      |                                      ^
encoder.cpp:115:38: error: no match for 'operator[]' (operand types are 'int [N]' and 'std::vector<int>')
  115 |                 if(dist[ord[j]]==dist[par[ord[j]]]){
      |                                      ^
encoder.cpp:119:50: error: no match for 'operator+' (operand types are 'std::vector<int>' and 'int')
  119 |                 if(dist[ord[j]]==dist[par[ord[j]]+1){
      |                                       ~~~~~~~~~~~^~
      |                                                 | |
      |                                                 | int
      |                                                 std::vector<int>
In file included from /usr/include/c++/10/bits/stl_algobase.h:67,
                 from /usr/include/c++/10/bits/specfun.h:45,
                 from /usr/include/c++/10/cmath:1927,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:41,
                 from encoder.cpp:1:
/usr/include/c++/10/bits/stl_iterator.h:508:5: note: candidate: 'template<class _Iterator> constexpr std::reverse_iterator<_Iterator> std::operator+(typename std::reverse_iterator<_Iterator>::difference_type, const std::reverse_iterator<_Iterator>&)'
  508 |     operator+(typename reverse_iterator<_Iterator>::difference_type __n,
      |     ^~~~~~~~
/usr/include/c++/10/bits/stl_iterator.h:508:5: note:   template argument deduction/substitution failed:
encoder.cpp:119:51: note:   mismatched types 'const std::reverse_iterator<_Iterator>' and 'int'
  119 |                 if(dist[ord[j]]==dist[par[ord[j]]+1){
      |                                                   ^
In file included from /usr/include/c++/10/bits/stl_algobase.h:67,
                 from /usr/include/c++/10/bits/specfun.h:45,
                 from /usr/include/c++/10/cmath:1927,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:41,
                 from encoder.cpp:1:
/usr/include/c++/10/bits/stl_iterator.h:1540:5: note: candidate: 'template<class _Iterator> constexpr std::move_iterator<_IteratorL> std::operator+(typename std::move_iterator<_IteratorL>::difference_type, const std::move_iterator<_IteratorL>&)'
 1540 |     operator+(typename move_iterator<_Iterator>::difference_type __n,
      |     ^~~~~~~~
/usr/include/c++/10/bits/stl_iterator.h:1540:5: note:   template argument deduction/substitution failed:
encoder.cpp:119:51: note:   mismatched types 'const std::move_iterator<_IteratorL>' and 'int'
  119 |                 if(dist[ord[j]]==dist[par[ord[j]]+1){
      |                                                   ^
In file included from /usr/include/c++/10/string:55,
                 from /usr/include/c++/10/bits/locale_classes.h:40,
                 from /usr/include/c++/10/bits/ios_base.h:41,
                 from /usr/include/c++/10/ios:42,
                 from /usr/include/c++/10/istream:38,
                 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:1:
/usr/include/c++/10/bits/basic_string.h:6022:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> std::__cxx11::basic_string<_CharT, _Traits, _Allocator> std::operator+(const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&, const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&)'
 6022 |     operator+(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/basic_string.h:6022:5: note:   template argument deduction/substitution failed:
encoder.cpp:119:51: note:   'std::vector<int>' is not derived from 'const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>'
  119 |                 if(dist[ord[j]]==dist[par[ord[j]]+1){
      |                                                   ^
In file included from /usr/include/c++/10/string:56,
                 from /usr/include/c++/10/bits/locale_classes.h:40,
                 from /usr/include/c++/10/bits/ios_base.h:41,
                 from /usr/include/c++/10/ios:42,
                 from /usr/include/c++/10/istream:38,
                 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:1:
/usr/include/c++/10/bits/basic_string.tcc:1160:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> std::__cxx11::basic_string<_CharT, _Traits, _Allocator> std::operator+(const _CharT*, const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&)'
 1160 |     operator+(const _CharT* __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/basic_string.tcc:1160:5: note:   template argument deduction/substitution failed:
encoder.cpp:119:51: note:   mismatched types 'const _CharT*' and 'std::vector<int>'
  119 |                 if(dist[ord[j]]==dist[par[ord[j]]+1){
      |                                                   ^
In file included from /usr/include/c++/10/string:56,
                 from /usr/include/c++/10/bits/locale_classes.h:40,
                 from /usr/include/c++/10/bits/ios_base.h:41,
                 from /usr/include/c++/10/ios:42,
                 from /usr/include/c++/10/istream:38,
                 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:1:
/usr/include/c++/10/bits/basic_string.tcc:1180:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> std::__cxx11::basic_string<_CharT, _Traits, _Allocator> std::operator+(_CharT, const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&)'
 1180 |     operator+(_CharT __lhs, const basic_string<_CharT, _Traits, _Alloc>& __rhs)
      |     ^~~~~~~~
/usr/include/c++/10/bits/basic_string.tcc:1180:5: note:   template argument deduction/substitution failed:
encoder.cpp:119:51: note:   mismatched types 'const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>' and 'int'
  119 |                 if(dist[ord[j]]==dist[par[ord[j]]+1){
      |                                                   ^
In file included from /usr/include/c++/10/string:55,
                 from /usr/include/c++/10/bits/locale_classes.h:40,
                 from /usr/include/c++/10/bits/ios_base.h:41,
                 from /usr/include/c++/10/ios:42,
                 from /usr/include/c++/10/istream:38,
                 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:1:
/usr/include/c++/10/bits/basic_string.h:6059:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> std::__cxx11::basic_string<_CharT, _Traits, _Allocator> std::operator+(const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&, const _CharT*)'
 6059 |     operator+(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/basic_string.h:6059:5: note:   template argument deduction/substitution failed:
encoder.cpp:119:51: note:   'std::vector<int>' is not derived from 'const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>'
  119 |                 if(dist[ord[j]]==dist[par[ord[j]]+1){
      |                                                   ^
In file included from /usr/include/c++/10/string:55,
                 from /usr/include/c++/10/bits/locale_classes.h:40,
                 from /usr/include/c++/10/bits/ios_base.h:41,
                 from /usr/include/c++/10/ios:42,
                 from /usr/include/c++/10/istream:38,
                 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:1:
/usr/include/c++/10/bits/basic_string.h:6075:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> std::__cxx11::basic_string<_CharT, _Traits, _Allocator> std::operator+(const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&, _CharT)'
 6075 |     operator+(const basic_string<_CharT, _Traits, _Alloc>& __lhs, _CharT __rhs)
      |     ^~~~~~~~
/usr/include/c++/10/bits/basic_string.h:6075:5: note:   template argument deduction/substitution failed:
encoder.cpp:119:51: note:   'std::vector<int>' is not derived from 'const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>'
  119 |                 if(dist[ord[j]]==dist[par[ord[j]]+1){
      |                                                   ^
In file included from /usr/include/c++/10/string:55,
                 from /usr/include/c++/10/bits/locale_classes.h:40,
                 from /usr/include/c++/10/bits/ios_base.h:41,
                 from /usr/include/c++/10/ios:42,
                 from /usr/include/c++/10/istream:38,
                 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:1:
/usr/include/c++/10/bits/basic_string.h:6087:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> std::__cxx11::basic_string<_CharT, _Traits, _Allocator> std::operator+(std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&&, const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&)'
 6087 |     operator+(basic_string<_CharT, _Traits, _Alloc>&& __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/basic_string.h:6087:5: note:   template argument deduction/substitution failed:
encoder.cpp:119:51: note:   'std::vector<int>' is not derived from 'std::__cxx11::basic_string<_CharT, _Traits, _Allocator>'
  119 |                 if(dist[ord[j]]==dist[par[ord[j]]+1){
      |                                                   ^
In file included from /usr/include/c++/10/string:55,
                 from /usr/include/c++/10/bits/locale_classes.h:40,
                 from /usr/include/c++/10/bits/ios_base.h:41,
                 from /usr/include/c++/10/ios:42,
                 from /usr/include/c++/10/istream:38,
                 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:1:
/usr/include/c++/10/bits/basic_string.h:6093:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> std::__cxx11::basic_string<_CharT, _Traits, _Allocator> std::operator+(const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&, std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&&)'
 6093 |     operator+(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/basic_string.h:6093:5: note:   template argument deduction/substitution failed:
encoder.cpp:119:51: note:   'std::vector<int>' is not derived from 'const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>'
  119 |                 if(dist[ord[j]]==dist[par[ord[j]]+1){
      |                                                   ^
In file included from /usr/include/c++/10/string:55,
                 from /usr/include/c++/10/bits/locale_classes.h:40,
                 from /usr/include/c++/10/bits/ios_base.h:41,
                 from /usr/include/c++/10/ios:42,
                 from /usr/include/c++/10/istream:38,
                 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:1:
/usr/include/c++/10/bits/basic_string.h:6099:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> std::__cxx11::basic_string<_CharT, _Traits, _Allocator> std::operator+(std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&&, std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&&)'
 6099 |     operator+(basic_string<_CharT, _Traits, _Alloc>&& __lhs,
      |     ^~~~~~~~
/usr/include/c++/10/bits/basic_string.h:6099:5: note:   template argument deduction/substitution failed:
encoder.cpp:119:51: note:   'std::vector<int>' is not derived from 'std::__cxx11::basic_string<_CharT, _Traits, _Allocator>'
  119 |                 if(dist[ord[j]]==dist[par[ord[j]]+1){
      |                                                   ^
In file included from /usr/include/c++/10/string:55,
                 from /usr/include/c++/10/bits/locale_classes.h:40,
                 from /usr/include/c++/10/bits/ios_base.h:41,
                 from /usr/include/c++/10/ios:42,
                 from /usr/include/c++/10/istream:38,
                 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-gn