| # | Time | Username | Problem | Language | Result | Execution time | Memory |
|---|---|---|---|---|---|---|---|
| 839591 | kyaruru | Pipes (CEOI15_pipes) | C++17 | Compilation error | 0 ms | 0 KiB |
This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
vector<int> adj[100001];
vector<int> tin(100001,-1),low(100001,-1);
vector<pii> ans;
bool vi[100001];
int t=0;
void dfs(int x,int p=-1){
vi[x]=true;
tin[x]=low[x]=t++;
for(int u:adj[x]){
if(u==p) continue;
if(vi[u]){
low[x]=min(low[x],tin[u]);
}else{
dfs(u,x);
low[x]=min(low[x],low[u]);
if(low[u]>tin[x]) cout>>u>>" ">>x>>"₩n";
}
}
}
int main() {
ios::sync_with_stdio(0);
cin.tie(0);
int a,b;
cin>>a>>b;
for(int i=0; i<b; i++){
int x,y;
cin>>x>>y;
adj[x].push_back(y);
adj[y].push_back(x);
}
for(int i=1; i<=a; i++){
if(!vi[i]) dfs(i);
}
}
Compilation message (stderr)
pipes.cpp: In function 'void dfs(int, int)':
pipes.cpp:25:35: error: no match for 'operator>>' (operand types are 'std::ostream' {aka 'std::basic_ostream<char>'} and 'int')
25 | if(low[u]>tin[x]) cout>>u>>" ">>x>>"₩n";
| ~~~~^~~
| | |
| | int
| std::ostream {aka std::basic_ostream<char>}
pipes.cpp:25:35: note: candidate: 'operator>>(int, int)' (built-in)
25 | if(low[u]>tin[x]) cout>>u>>" ">>x>>"₩n";
| ~~~~^~~
pipes.cpp:25:35: note: no known conversion for argument 1 from 'std::ostream' {aka 'std::basic_ostream<char>'} to 'int'
In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:45,
from pipes.cpp:1:
/usr/include/c++/10/cstddef:130:5: note: candidate: 'template<class _IntegerType> constexpr std::__byte_op_t<_IntegerType> std::operator>>(std::byte, _IntegerType)'
130 | operator>>(byte __b, _IntegerType __shift) noexcept
| ^~~~~~~~
/usr/include/c++/10/cstddef:130:5: note: template argument deduction/substitution failed:
pipes.cpp:25:31: note: cannot convert 'std::cout' (type 'std::ostream' {aka 'std::basic_ostream<char>'}) to type 'std::byte'
25 | if(low[u]>tin[x]) cout>>u>>" ">>x>>"₩n";
| ^~~~
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 pipes.cpp:1:
/usr/include/c++/10/bits/basic_string.tcc:1476:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&)'
1476 | operator>>(basic_istream<_CharT, _Traits>& __in,
| ^~~~~~~~
/usr/include/c++/10/bits/basic_string.tcc:1476:5: note: template argument deduction/substitution failed:
pipes.cpp:25:37: note: 'std::ostream' {aka 'std::basic_ostream<char>'} is not derived from 'std::basic_istream<_CharT, _Traits>'
25 | if(low[u]>tin[x]) cout>>u>>" ">>x>>"₩n";
| ^
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 pipes.cpp:1:
/usr/include/c++/10/bits/istream.tcc:931:5: note: candidate: 'template<class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, _CharT&)'
931 | operator>>(basic_istream<_CharT, _Traits>& __in, _CharT& __c)
| ^~~~~~~~
/usr/include/c++/10/bits/istream.tcc:931:5: note: template argument deduction/substitution failed:
pipes.cpp:25:37: note: 'std::ostream' {aka 'std::basic_ostream<char>'} is not derived from 'std::basic_istream<_CharT, _Traits>'
25 | if(low[u]>tin[x]) cout>>u>>" ">>x>>"₩n";
| ^
In file included 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 pipes.cpp:1:
/usr/include/c++/10/istream:756:5: note: candidate: 'template<class _Traits> std::basic_istream<char, _Traits>& std::operator>>(std::basic_istream<char, _Traits>&, unsigned char&)'
756 | operator>>(basic_istream<char, _Traits>& __in, unsigned char& __c)
| ^~~~~~~~
/usr/include/c++/10/istream:756:5: note: template argument deduction/substitution failed:
pipes.cpp:25:37: note: 'std::ostream' {aka 'std::basic_ostream<char>'} is not derived from 'std::basic_istream<char, _Traits>'
25 | if(low[u]>tin[x]) cout>>u>>" ">>x>>"₩n";
| ^
In file included 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 pipes.cpp:1:
/usr/include/c++/10/istream:761:5: note: candidate: 'template<class _Traits> std::basic_istream<char, _Traits>& std::operator>>(std::basic_istream<char, _Traits>&, signed char&)'
761 | operator>>(basic_istream<char, _Traits>& __in, signed char& __c)
| ^~~~~~~~
/usr/include/c++/10/istream:761:5: note: template argument deduction/substitution failed:
pipes.cpp:25:37: note: 'std::ostream' {aka 'std::basic_ostream<char>'} is not derived from 'std::basic_istream<char, _Traits>'
25 | if(low[u]>tin[x]) cout>>u>>" ">>x>>"₩n";
| ^
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 pipes.cpp:1:
/usr/include/c++/10/bits/istream.tcc:963:5: note: candidate: 'template<class _CharT2, class _Traits2> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, _CharT2*)'
963 | operator>>(basic_istream<_CharT, _Traits>& __in, _CharT* __s)
| ^~~~~~~~
/usr/include/c++/10/bits/istream.tcc:963:5: note: template argument deduction/substitution failed:
pipes.cpp:25:37: note: 'std::ostream' {aka 'std::basic_ostream<char>'} is not derived from 'std::basic_istream<_CharT, _Traits>'
25 | if(low[u]>tin[x]) cout>>u>>" ">>x>>"₩n";
| ^
In file included 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 pipes.cpp:1:
/usr/include/c++/10/istream:803:5: note: candidate: 'template<class _Traits> std::basic_istream<char, _Traits>& std::operator>>(std::basic_istream<char, _Traits>&, unsigned char*)'
803 | operator>>(basic_istream<char, _Traits>& __in, unsigned char* __s)
| ^~~~~~~~
/usr/include/c++/10/istream:803:5: note: template argument deduction/substitution failed:
pipes.cpp:25:37: note: 'std::ostream' {aka 'std::basic_ostream<char>'} is not derived from 'std::basic_istream<char, _Traits>'
25 | if(low[u]>tin[x]) cout>>u>>" ">>x>>"₩n";
| ^
In file included 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 pipes.cpp:1:
/usr/include/c++/10/istream:808:5: note: candidate: 'template<class _Traits> std::basic_istream<char, _Traits>& std::operator>>(std::basic_istream<char, _Traits>&, signed char*)'
808 | operator>>(basic_istream<char, _Traits>& __in, signed char* __s)
| ^~~~~~~~
/usr/include/c++/10/istream:808:5: note: template argument deduction/substitution failed:
pipes.cpp:25:37: note: 'std::ostream' {aka 'std::basic_ostream<char>'} is not derived from 'std::basic_istream<char, _Traits>'
25 | if(low[u]>tin[x]) cout>>u>>" ">>x>>"₩n";
| ^
In file included 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 pipes.cpp:1:
/usr/include/c++/10/istream:980:5: note: candidate: 'template<class _Istream, class _Tp> typename std::enable_if<std::__and_<std::__not_<std::is_lvalue_reference<_Tp> >, std::__is_convertible_to_basic_istream<_Istream>, std::__is_extractable<typename std::__is_convertible_to_basic_istream<_Tp>::__istream_type, _Tp&&, void> >::value, typename std::__is_convertible_to_basic_istream<_Tp>::__istream_type>::type std::operator>>(_Istream&&, _Tp&&)'
980 | operator>>(_Istream&& __is, _Tp&& __x)
| ^~~~~~~~
/usr/include/c++/10/istream:980:5: note: template argument deduction/substitution failed:
/usr/include/c++/10/istream: In substitution of 'template<class _Istream, class _Tp> typename std::enable_if<std::__and_<std::__not_<std::is_lvalue_reference<_Tp> >, std::__is_convertible_to_basic_istream<_Istream>, std::__is_extractable<typename std::__is_convertible_to_basic_istream<_Tp>::__istream_type, _Tp&&, void> >::value, typename std::__is_convertible_to_basic_istream<_Tp>::__istream_type>::type std::operator>>(_Istream&&, _Tp&&) [with _Istream = std::basic_ostream<char>&; _Tp = int&]':
pipes.cpp:25:37: required from here
/usr/include/c++/10/istream:980:5: error: no type named 'type' in 'struct std::enable_if<false, void>'
In file included from /usr/include/c++/10/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
from pipes.cpp:1:
/usr/include/c++/10/complex:500:5: note: candidate: 'template<class _Tp, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::complex<_Tp>&)'
500 | operator>>(basic_istream<_CharT, _Traits>& __is, complex<_Tp>& __x)
| ^~~~~~~~
/usr/include/c++/10/complex:500:5: note: template argument deduction/substitution failed:
pipes.cpp:25:37: note: 'std::ostream' {aka 'std::basic_ostream<char>'} is not derived from 'std::basic_istream<_CharT, _Traits>'
25 | if(low[u]>tin[x]) cout>>u>>" ">>x>>"₩n";
| ^
In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:66,
from pipes.cpp:1:
/usr/include/c++/10/bitset:1472:5: note: candidate: 'template<class _CharT, class _Traits, long unsigned int _Nb> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::bitset<_Nb>&)'
1472 | operator>>(std::basic_istream<_CharT, _Traits>& __is, bitset<_Nb>& __x)
| ^~~~~~~~
/usr/include/c++/10/bitset:1472:5: note: template argument deduction/substitution failed:
pipes.cpp:25:37: note: 'std::ostream' {aka 'std::basic_ostream<char>'} is not derived from 'std::basic_istream<_CharT, _Traits>'
25 | if(low[u]>tin[x]) cout>>u>>" ">>x>>"₩n";
| ^
In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:72,
from pipes.cpp:1:
/usr/include/c++/10/iomanip:71:5: note: candidate: 'template<class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::_Resetiosflags)'
71 | operator>>(basic_istream<_CharT, _Traits>& __is, _Resetiosflags __f)
| ^~~~~~~~
/usr/include/c++/10/iomanip:71:5: note: template argument deduction/substitution failed:
pipes.cpp:25:37: note: 'std::ostream' {aka 'std::basic_ostream<char>'} is not derived from 'std::basic_istream<_CharT, _Traits>'
25 | if(low[u]>tin[x]) cout>>u>>" ">>x>>"₩n";
| ^
In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:72,
from pipes.cpp:1:
/usr/include/c++/10/iomanip:101:5: note: candidate: 'template<class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::_Setiosflags)'
101 | operator>>(basic_istream<_CharT, _Traits>& __is, _Setiosflags __f)
| ^~~~~~~~
/usr/include/c++/10/iomanip:101:5: note: template argument deduction/substitution failed:
pipes.cpp:25:37: note: 'std::ostream' {aka 'std::basic_ostream<char>'} is not derived from 'std::basic_istream<_CharT, _Traits>'
25 | if(low[u]>tin[x]) cout>>u>>" ">>x>>"₩n";
| ^
In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:72,
from pipes.cpp:1:
/usr/include/c++/10/iomanip:132:5: note: candidate: 'template<class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::_Setbase)'
132 | operator>>(basic_istream<_CharT, _Traits>& __is, _Setbase __f)
| ^~~~~~~~
/usr/include/c++/10/iomanip:132:5: note: template argument deduction/substitution failed:
pipes.cpp:25:37: note: 'std::ostream' {aka 'std::basic_ostream<char>'} is not derived from 'std::basic_istream<_CharT, _Traits>'
25 | if(low[u]>tin[x]) cout>>u>>" ">>x>>"₩n";
| ^
In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:72,
from pipes.cpp:1:
/usr/include/c++/10/iomanip:170:5: note: candidate: 'template<class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::_Setfill<_CharT>)'
170 | operator>>(basic_istream<_CharT, _Traits>& __is, _Setfill<_CharT> __f)
| ^~~~~~~~
/usr/include/c++/10/iomanip:170:5: note: template argument deduction/substitution failed:
pipes.cpp:25:37: note: 'std::ostream' {aka 'std::basic_ostream<char>'} is not derived from 'std::basic_istream<_CharT, _Traits>'
25 | if(low[u]>tin[x]) cout>>u>>" ">>x>>"₩n";
| ^
In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:72,
from pipes.cpp:1:
/usr/include/c++/10/iomanip:200:5: note: candidate: 'template<class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::_Setprecision)'
200 | operator>>(basic_istream<_CharT, _Traits>& __is, _Setprecision __f)
| ^~~~~~~~
/usr/include/c++/10/iomanip:200:5: note: template argument deduction/substitution failed:
pipes.cpp:25:37: note: 'std::ostream' {aka 'std::basic_ostream<char>'} is not derived from 'std::basic_istream<_CharT, _Traits>'
25 | if(low[u]>tin[x]) cout>>u>>" ">>x>>"₩n";
| ^
In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:72,
from pipes.cpp:1:
/usr/include/c++/10/iomanip:230:5: note: candidate: 'template<class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::_Setw)'
230 | operator>>(basic_istream<_CharT, _Traits>& __is, _Setw __f)
| ^~~~~~~~
/usr/include/c++/10/iomanip:230:5: note: template argument deduction/substitution failed:
pipes.cpp:25:37: note: 'std::ostream' {aka 'std::basic_ostream<char>'} is not derived from 'std::basic_istream<_CharT, _Traits>'
25 | if(low[u]>tin[x]) cout>>u>>" ">>x>>"₩n";
| ^
In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:72,
from pipes.cpp:1:
/usr/include/c++/10/iomanip:264:5: note: candidate: 'template<class _CharT, class _Traits, class _MoneyT> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::_Get_money<_MoneyT>)'
264 | operator>>(basic_istream<_CharT, _Traits>& __is, _Get_money<_MoneyT> __f)
| ^~~~~~~~
/usr/include/c++/10/iomanip:264:5: note: template argument deduction/substitution failed:
pipes.cpp:25:37: note: 'std::ostream' {aka 'std::basic_ostream<char>'} is not derived from 'std::basic_istream<_CharT, _Traits>'
25 | if(low[u]>tin[x]) cout>>u>>" ">>x>>"₩n";
| ^
In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:72,
from pipes.cpp:1:
/usr/include/c++/10/iomanip:418:5: note: candidate: 'template<class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::_Get_time<_CharT>)'
418 | operator>>(basic_istream<_CharT, _Traits>& __is, _Get_time<_CharT> __f)
| ^~~~~~~~
/usr/include/c++/10/iomanip:418:5: note: template argument deduction/substitution failed:
pipes.cpp:25:37: note: 'std::ostream' {aka 'std::basic_ostream<char>'} is not derived from 'std::basic_istream<_CharT, _Traits>'
25 | if(low[u]>tin[x]) cout>>u>>" ">>x>>"₩n";
| ^
In file included from /usr/include/c++/10/valarray:603,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:95,
from pipes.cpp:1:
/usr/include/c++/10/bits/valarray_after.h:414:5: note: candidate: 'template<class _Dom1, class _Dom2> std::_Expr<std::__detail::_BinClos<std::__shift_right, std::_Expr, std::_Expr, _Dom1, _Dom2>, typename std::__fun<std::__shift_right, typename _Dom1::value_type>::result_type> std::operator>>(const std::_Expr<_Dom1, typename _Dom1::value_type>&, const std::_Expr<_Dom2, typename _Dom2::value_type>&)'
414 | _DEFINE_EXPR_BINARY_OPERATOR(>>, __shift_right)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/10/bits/valarray_after.h:414:5: note: template argument deduction/substitution failed:
pipes.cpp:25:37: note: 'std::ostream' {aka 'std::basic_ostream<char>'} is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
25 | if(low[u]>tin[x]) cout>>u>>" ">>x>>"₩n";
| ^
In file included from /usr/include/c++/10/valarray:603,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:95,
from pipes.cpp:1:
/usr/include/c++/10/bits/valarray_after.h:414:5: note: candidate: 'template<class _Dom> std::_Expr<std::__detail::_BinClos<std::__shift_right, std::_Expr,