Submission #00082
ソースコード
ステータス
項目 |
データ |
問題 |
0001 - a * b Problem |
ユーザー名 |
e2121
|
投稿日時 |
2022-01-28 17:01:49 |
言語 |
C++17 |
状態 |
Compile Error |
得点 |
0
|
ソースコード長 |
113 Byte |
最大実行時間 |
-
|
最大メモリ使用量 |
|
コンパイルメッセージ
./Main.cpp: In function ‘int main()’:
./Main.cpp:6:14: error: no match for ‘operator>>’ (operand types are ‘std::basic_ostream<char>’ and ‘<unresolved overloaded function type>’)
cout<<a*b>>endl;
~~~~~~~~~^~~~~~
In file included from /usr/local/gcc-8.2.0/include/c++/8.2.0/x86_64-pc-linux-gnu/bits/stdc++.h:45,
from ./Main.cpp:1:
/usr/local/gcc-8.2.0/include/c++/8.2.0/cstddef:134:5: note: candidate: ‘template<class _IntegerType> constexpr std::__byte_op_t<_IntegerType> std::operator>>(std::byte, _IntegerType)’
operator>>(byte __b, _IntegerType __shift) noexcept
^~~~~~~~
/usr/local/gcc-8.2.0/include/c++/8.2.0/cstddef:134:5: note: template argument deduction/substitution failed:
./Main.cpp:6:16: note: couldn't deduce template parameter ‘_IntegerType’
cout<<a*b>>endl;
^~~~
In file included from /usr/local/gcc-8.2.0/include/c++/8.2.0/string:53,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/bits/locale_classes.h:40,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/bits/ios_base.h:41,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/ios:42,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/istream:38,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/sstream:38,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/complex:45,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/ccomplex:39,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/x86_64-pc-linux-gnu/bits/stdc++.h:52,
from ./Main.cpp:1:
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/basic_string.tcc:1465:5: 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>&)’
operator>>(basic_istream<_CharT, _Traits>& __in,
^~~~~~~~
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/basic_string.tcc:1465:5: note: template argument deduction/substitution failed:
./Main.cpp:6:16: note: ‘std::basic_ostream<char>’ is not derived from ‘std::basic_istream<_CharT, _Traits>’
cout<<a*b>>endl;
^~~~
In file included from /usr/local/gcc-8.2.0/include/c++/8.2.0/istream:991,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/sstream:38,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/complex:45,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/ccomplex:39,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/x86_64-pc-linux-gnu/bits/stdc++.h:52,
from ./Main.cpp:1:
/usr/local/gcc-8.2.0/include/c++/8.2.0/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&)’
operator>>(basic_istream<_CharT, _Traits>& __in, _CharT& __c)
^~~~~~~~
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/istream.tcc:931:5: note: template argument deduction/substitution failed:
./Main.cpp:6:16: note: ‘std::basic_ostream<char>’ is not derived from ‘std::basic_istream<_CharT, _Traits>’
cout<<a*b>>endl;
^~~~
In file included from /usr/local/gcc-8.2.0/include/c++/8.2.0/sstream:38,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/complex:45,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/ccomplex:39,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/x86_64-pc-linux-gnu/bits/stdc++.h:52,
from ./Main.cpp:1:
/usr/local/gcc-8.2.0/include/c++/8.2.0/istream:756:5: note: candidate: ‘template<class _Traits> std::basic_istream<char, _Traits>& std::operator>>(std::basic_istream<char, _Traits>&, unsigned char&)’
operator>>(basic_istream<char, _Traits>& __in, unsigned char& __c)
^~~~~~~~
/usr/local/gcc-8.2.0/include/c++/8.2.0/istream:756:5: note: template argument deduction/substitution failed:
./Main.cpp:6:16: note: ‘std::basic_ostream<char>’ is not derived from ‘std::basic_istream<char, _Traits>’
cout<<a*b>>endl;
^~~~
In file included from /usr/local/gcc-8.2.0/include/c++/8.2.0/sstream:38,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/complex:45,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/ccomplex:39,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/x86_64-pc-linux-gnu/bits/stdc++.h:52,
from ./Main.cpp:1:
/usr/local/gcc-8.2.0/include/c++/8.2.0/istream:761:5: note: candidate: ‘template<class _Traits> std::basic_istream<char, _Traits>& std::operator>>(std::basic_istream<char, _Traits>&, signed char&)’
operator>>(basic_istream<char, _Traits>& __in, signed char& __c)
^~~~~~~~
/usr/local/gcc-8.2.0/include/c++/8.2.0/istream:761:5: note: template argument deduction/substitution failed:
./Main.cpp:6:16: note: ‘std::basic_ostream<char>’ is not derived from ‘std::basic_istream<char, _Traits>’
cout<<a*b>>endl;
^~~~
In file included from /usr/local/gcc-8.2.0/include/c++/8.2.0/istream:991,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/sstream:38,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/complex:45,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/ccomplex:39,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/x86_64-pc-linux-gnu/bits/stdc++.h:52,
from ./Main.cpp:1:
/usr/local/gcc-8.2.0/include/c++/8.2.0/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*)’
operator>>(basic_istream<_CharT, _Traits>& __in, _CharT* __s)
^~~~~~~~
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/istream.tcc:963:5: note: template argument deduction/substitution failed:
./Main.cpp:6:16: note: ‘std::basic_ostream<char>’ is not derived from ‘std::basic_istream<_CharT, _Traits>’
cout<<a*b>>endl;
^~~~
In file included from /usr/local/gcc-8.2.0/include/c++/8.2.0/sstream:38,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/complex:45,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/ccomplex:39,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/x86_64-pc-linux-gnu/bits/stdc++.h:52,
from ./Main.cpp:1:
/usr/local/gcc-8.2.0/include/c++/8.2.0/istream:803:5: note: candidate: ‘template<class _Traits> std::basic_istream<char, _Traits>& std::operator>>(std::basic_istream<char, _Traits>&, unsigned char*)’
operator>>(basic_istream<char, _Traits>& __in, unsigned char* __s)
^~~~~~~~
/usr/local/gcc-8.2.0/include/c++/8.2.0/istream:803:5: note: template argument deduction/substitution failed:
./Main.cpp:6:16: note: ‘std::basic_ostream<char>’ is not derived from ‘std::basic_istream<char, _Traits>’
cout<<a*b>>endl;
^~~~
In file included from /usr/local/gcc-8.2.0/include/c++/8.2.0/sstream:38,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/complex:45,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/ccomplex:39,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/x86_64-pc-linux-gnu/bits/stdc++.h:52,
from ./Main.cpp:1:
/usr/local/gcc-8.2.0/include/c++/8.2.0/istream:808:5: note: candidate: ‘template<class _Traits> std::basic_istream<char, _Traits>& std::operator>>(std::basic_istream<char, _Traits>&, signed char*)’
operator>>(basic_istream<char, _Traits>& __in, signed char* __s)
^~~~~~~~
/usr/local/gcc-8.2.0/include/c++/8.2.0/istream:808:5: note: template argument deduction/substitution failed:
./Main.cpp:6:16: note: ‘std::basic_ostream<char>’ is not derived from ‘std::basic_istream<char, _Traits>’
cout<<a*b>>endl;
^~~~
In file included from /usr/local/gcc-8.2.0/include/c++/8.2.0/sstream:38,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/complex:45,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/ccomplex:39,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/x86_64-pc-linux-gnu/bits/stdc++.h:52,
from ./Main.cpp:1:
/usr/local/gcc-8.2.0/include/c++/8.2.0/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&&)’
operator>>(_Istream&& __is, _Tp&& __x)
^~~~~~~~
/usr/local/gcc-8.2.0/include/c++/8.2.0/istream:980:5: note: template argument deduction/substitution failed:
./Main.cpp:6:16: note: couldn't deduce template parameter ‘_Tp’
cout<<a*b>>endl;
^~~~
In file included from /usr/local/gcc-8.2.0/include/c++/8.2.0/ccomplex:39,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/x86_64-pc-linux-gnu/bits/stdc++.h:52,
from ./Main.cpp:1:
/usr/local/gcc-8.2.0/include/c++/8.2.0/complex:493:5: note: candidate: ‘template<class _Tp, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::complex<_Tp>&)’
operator>>(basic_istream<_CharT, _Traits>& __is, complex<_Tp>& __x)
^~~~~~~~
/usr/local/gcc-8.2.0/include/c++/8.2.0/complex:493:5: note: template argument deduction/substitution failed:
./Main.cpp:6:16: note: ‘std::basic_ostream<char>’ is not derived from ‘std::basic_istream<_CharT, _Traits>’
cout<<a*b>>endl;
^~~~
In file included from /usr/local/gcc-8.2.0/include/c++/8.2.0/x86_64-pc-linux-gnu/bits/stdc++.h:66,
from ./Main.cpp:1:
/usr/local/gcc-8.2.0/include/c++/8.2.0/bitset:1466:5: 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>&)’
operator>>(std::basic_istream<_CharT, _Traits>& __is, bitset<_Nb>& __x)
^~~~~~~~
/usr/local/gcc-8.2.0/include/c++/8.2.0/bitset:1466:5: note: template argument deduction/substitution failed:
./Main.cpp:6:16: note: ‘std::basic_ostream<char>’ is not derived from ‘std::basic_istream<_CharT, _Traits>’
cout<<a*b>>endl;
^~~~
In file included from /usr/local/gcc-8.2.0/include/c++/8.2.0/x86_64-pc-linux-gnu/bits/stdc++.h:72,
from ./Main.cpp:1:
/usr/local/gcc-8.2.0/include/c++/8.2.0/iomanip:71:5: note: candidate: ‘template<class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::_Resetiosflags)’
operator>>(basic_istream<_CharT, _Traits>& __is, _Resetiosflags __f)
^~~~~~~~
/usr/local/gcc-8.2.0/include/c++/8.2.0/iomanip:71:5: note: template argument deduction/substitution failed:
./Main.cpp:6:16: note: ‘std::basic_ostream<char>’ is not derived from ‘std::basic_istream<_CharT, _Traits>’
cout<<a*b>>endl;
^~~~
In file included from /usr/local/gcc-8.2.0/include/c++/8.2.0/x86_64-pc-linux-gnu/bits/stdc++.h:72,
from ./Main.cpp:1:
/usr/local/gcc-8.2.0/include/c++/8.2.0/iomanip:101:5: note: candidate: ‘template<class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::_Setiosflags)’
operator>>(basic_istream<_CharT, _Traits>& __is, _Setiosflags __f)
^~~~~~~~
/usr/local/gcc-8.2.0/include/c++/8.2.0/iomanip:101:5: note: template argument deduction/substitution failed:
./Main.cpp:6:16: note: ‘std::basic_ostream<char>’ is not derived from ‘std::basic_istream<_CharT, _Traits>’
cout<<a*b>>endl;
^~~~
In file included from /usr/local/gcc-8.2.0/include/c++/8.2.0/x86_64-pc-linux-gnu/bits/stdc++.h:72,
from ./Main.cpp:1:
/usr/local/gcc-8.2.0/include/c++/8.2.0/iomanip:132:5: note: candidate: ‘template<class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::_Setbase)’
operator>>(basic_istream<_CharT, _Traits>& __is, _Setbase __f)
^~~~~~~~
/usr/local/gcc-8.2.0/include/c++/8.2.0/iomanip:132:5: note: template argument deduction/substitution failed:
./Main.cpp:6:16: note: ‘std::basic_ostream<char>’ is not derived from ‘std::basic_istream<_CharT, _Traits>’
cout<<a*b>>endl;
^~~~
In file included from /usr/local/gcc-8.2.0/include/c++/8.2.0/x86_64-pc-linux-gnu/bits/stdc++.h:72,
from ./Main.cpp:1:
/usr/local/gcc-8.2.0/include/c++/8.2.0/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>)’
operator>>(basic_istream<_CharT, _Traits>& __is, _Setfill<_CharT> __f)
^~~~~~~~
/usr/local/gcc-8.2.0/include/c++/8.2.0/iomanip:170:5: note: template argument deduction/substitution failed:
./Main.cpp:6:16: note: ‘std::basic_ostream<char>’ is not derived from ‘std::basic_istream<_CharT, _Traits>’
cout<<a*b>>endl;
^~~~
In file included from /usr/local/gcc-8.2.0/include/c++/8.2.0/x86_64-pc-linux-gnu/bits/stdc++.h:72,
from ./Main.cpp:1:
/usr/local/gcc-8.2.0/include/c++/8.2.0/iomanip:200:5: note: candidate: ‘template<class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::_Setprecision)’
operator>>(basic_istream<_CharT, _Traits>& __is, _Setprecision __f)
^~~~~~~~
/usr/local/gcc-8.2.0/include/c++/8.2.0/iomanip:200:5: note: template argument deduction/substitution failed:
./Main.cpp:6:16: note: ‘std::basic_ostream<char>’ is not derived from ‘std::basic_istream<_CharT, _Traits>’
cout<<a*b>>endl;
^~~~
In file included from /usr/local/gcc-8.2.0/include/c++/8.2.0/x86_64-pc-linux-gnu/bits/stdc++.h:72,
from ./Main.cpp:1:
/usr/local/gcc-8.2.0/include/c++/8.2.0/iomanip:230:5: note: candidate: ‘template<class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::_Setw)’
operator>>(basic_istream<_CharT, _Traits>& __is, _Setw __f)
^~~~~~~~
/usr/local/gcc-8.2.0/include/c++/8.2.0/iomanip:230:5: note: template argument deduction/substitution failed:
./Main.cpp:6:16: note: ‘std::basic_ostream<char>’ is not derived from ‘std::basic_istream<_CharT, _Traits>’
cout<<a*b>>endl;
^~~~
In file included from /usr/local/gcc-8.2.0/include/c++/8.2.0/x86_64-pc-linux-gnu/bits/stdc++.h:72,
from ./Main.cpp:1:
/usr/local/gcc-8.2.0/include/c++/8.2.0/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>)’
operator>>(basic_istream<_CharT, _Traits>& __is, _Get_money<_MoneyT> __f)
^~~~~~~~
/usr/local/gcc-8.2.0/include/c++/8.2.0/iomanip:264:5: note: template argument deduction/substitution failed:
./Main.cpp:6:16: note: ‘std::basic_ostream<char>’ is not derived from ‘std::basic_istream<_CharT, _Traits>’
cout<<a*b>>endl;
^~~~
In file included from /usr/local/gcc-8.2.0/include/c++/8.2.0/x86_64-pc-linux-gnu/bits/stdc++.h:72,
from ./Main.cpp:1:
/usr/local/gcc-8.2.0/include/c++/8.2.0/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>)’
operator>>(basic_istream<_CharT, _Traits>& __is, _Get_time<_CharT> __f)
^~~~~~~~
/usr/local/gcc-8.2.0/include/c++/8.2.0/iomanip:418:5: note: template argument deduction/substitution failed:
./Main.cpp:6:16: note: ‘std::basic_ostream<char>’ is not derived from ‘std::basic_istream<_CharT, _Traits>’
cout<<a*b>>endl;
^~~~
In file included from /usr/local/gcc-8.2.0/include/c++/8.2.0/valarray:592,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/x86_64-pc-linux-gnu/bits/stdc++.h:95,
from ./Main.cpp:1:
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/valarray_after.h:411:5: note: candidate: ‘template<class _Dom1, class _Dom2> std::_Expr<std::_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>&)’
_DEFINE_EXPR_BINARY_OPERATOR(>>, __shift_right)
^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/valarray_after.h:411:5: note: template argument deduction/substitution failed:
./Main.cpp:6:16: note: ‘std::basic_ostream<char>’ is not derived from ‘const std::_Expr<_Dom1, typename _Dom1::value_type>’
cout<<a*b>>endl;
^~~~
In file included from /usr/local/gcc-8.2.0/include/c++/8.2.0/valarray:592,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/x86_64-pc-linux-gnu/bits/stdc++.h:95,
from ./Main.cpp:1:
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/valarray_after.h:411:5: note: candidate: ‘template<class _Dom> std::_Expr<std::_BinClos<std::__shift_right, std::_Expr, std::_Constant, _Dom, typename _Dom::value_type>, typename std::__fun<std::__shift_right, typename _Dom1::value_type>::result_type> std::operator>>(const std::_Expr<_Dom1, typename _Dom1::value_type>&, const typename _Dom::value_type&)’
_DEFINE_EXPR_BINARY_OPERATOR(>>, __shift_right)
^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/valarray_after.h:411:5: note: template argument deduction/substitution failed:
./Main.cpp:6:16: note: ‘std::basic_ostream<char>’ is not derived from ‘const std::_Expr<_Dom1, typename _Dom1::value_type>’
cout<<a*b>>endl;
^~~~
In file included from /usr/local/gcc-8.2.0/include/c++/8.2.0/valarray:592,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/x86_64-pc-linux-gnu/bits/stdc++.h:95,
from ./Main.cpp:1:
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/valarray_after.h:411:5: note: candidate: ‘template<class _Dom> std::_Expr<std::_BinClos<std::__shift_right, std::_Constant, std::_Expr, typename _Dom::value_type, _Dom>, typename std::__fun<std::__shift_right, typename _Dom1::value_type>::result_type> std::operator>>(const typename _Dom::value_type&, const std::_Expr<_Dom1, typename _Dom1::value_type>&)’
_DEFINE_EXPR_BINARY_OPERATOR(>>, __shift_right)
^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/valarray_after.h:411:5: note: template argument deduction/substitution failed:
./Main.cpp:6:16: note: couldn't deduce template parameter ‘_Dom’
cout<<a*b>>endl;
^~~~
In file included from /usr/local/gcc-8.2.0/include/c++/8.2.0/valarray:592,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/x86_64-pc-linux-gnu/bits/stdc++.h:95,
from ./Main.cpp:1:
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/valarray_after.h:411:5: note: candidate: ‘template<class _Dom> std::_Expr<std::_BinClos<std::__shift_right, std::_Expr, std::_ValArray, _Dom, typename _Dom::value_type>, typename std::__fun<std::__shift_right, typename _Dom1::value_type>::result_type> std::operator>>(const std::_Expr<_Dom1, typename _Dom1::value_type>&, const std::valarray<typename _Dom::value_type>&)’
_DEFINE_EXPR_BINARY_OPERATOR(>>, __shift_right)
^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/valarray_after.h:411:5: note: template argument deduction/substitution failed:
./Main.cpp:6:16: note: ‘std::basic_ostream<char>’ is not derived from ‘const std::_Expr<_Dom1, typename _Dom1::value_type>’
cout<<a*b>>endl;
^~~~
In file included from /usr/local/gcc-8.2.0/include/c++/8.2.0/valarray:592,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/x86_64-pc-linux-gnu/bits/stdc++.h:95,
from ./Main.cpp:1:
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/valarray_after.h:411:5: note: candidate: ‘template<class _Dom> std::_Expr<std::_BinClos<std::__shift_right, std::_ValArray, std::_Expr, typename _Dom::value_type, _Dom>, typename std::__fun<std::__shift_right, typename _Dom1::value_type>::result_type> std::operator>>(const std::valarray<typename _Dom::value_type>&, const std::_Expr<_Dom1, typename _Dom1::value_type>&)’
_DEFINE_EXPR_BINARY_OPERATOR(>>, __shift_right)
^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/valarray_after.h:411:5: note: template argument deduction/substitution failed:
./Main.cpp:6:16: note: couldn't deduce template parameter ‘_Dom’
cout<<a*b>>endl;
^~~~
In file included from /usr/local/gcc-8.2.0/include/c++/8.2.0/x86_64-pc-linux-gnu/bits/stdc++.h:95,
from ./Main.cpp:1:
/usr/local/gcc-8.2.0/include/c++/8.2.0/valarray:1181:1: note: candidate: ‘template<class _Tp> std::_Expr<std::_BinClos<std::__shift_right, std::_ValArray, std::_ValArray, _Tp, _Tp>, typename std::__fun<std::__shift_right, _Tp>::result_type> std::operator>>(const std::valarray<_Tp>&, const std::valarray<_Tp>&)’
_DEFINE_BINARY_OPERATOR(>>, __shift_right)
^~~~~~~~~~~~~~~~~~~~~~~
/usr/local/gcc-8.2.0/include/c++/8.2.0/valarray:1181:1: note: template argument deduction/substitution failed:
./Main.cpp:6:16: note: ‘std::basic_ostream<char>’ is not derived from ‘const std::valarray<_Tp>’
cout<<a*b>>endl;
^~~~
In file included from /usr/local/gcc-8.2.0/include/c++/8.2.0/x86_64-pc-linux-gnu/bits/stdc++.h:95,
from ./Main.cpp:1:
/usr/local/gcc-8.2.0/include/c++/8.2.0/valarray:1181:1: note: candidate: ‘template<class _Tp> std::_Expr<std::_BinClos<std::__shift_right, std::_ValArray, std::_Constant, _Tp, _Tp>, typename std::__fun<std::__shift_right, _Tp>::result_type> std::operator>>(const std::valarray<_Tp>&, const _Tp&)’
_DEFINE_BINARY_OPERATOR(>>, __shift_right)
^~~~~~~~~~~~~~~~~~~~~~~
/usr/local/gcc-8.2.0/include/c++/8.2.0/valarray:1181:1: note: template argument deduction/substitution failed:
./Main.cpp:6:16: note: ‘std::basic_ostream<char>’ is not derived from ‘const std::valarray<_Tp>’
cout<<a*b>>endl;
^~~~
In file included from /usr/local/gcc-8.2.0/include/c++/8.2.0/x86_64-pc-linux-gnu/bits/stdc++.h:95,
from ./Main.cpp:1:
/usr/local/gcc-8.2.0/include/c++/8.2.0/valarray:1181:1: note: candidate: ‘std::_Expr<std::_BinClos<std::__shift_right, std::_Constant, std::_ValArray, _Tp, _Tp>, typename std::__fun<std::__shift_right, _Tp>::result_type> std::operator>>(const _Tp&, const std::valarray<_Tp>&) [with _Tp = std::basic_ostream<char>; typename std::__fun<std::__shift_right, _Tp>::result_type = std::basic_ostream<char>]’
_DEFINE_BINARY_OPERATOR(>>, __shift_right)
^~~~~~~~~~~~~~~~~~~~~~~
/usr/local/gcc-8.2.0/include/c++/8.2.0/valarray:1181:1: note: no known conversion for argument 2 from ‘<unresolved overloaded function type>’ to ‘const std::valarray<std::basic_ostream<char> >&’
In file included from /usr/local/gcc-8.2.0/include/c++/8.2.0/random:51,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/x86_64-pc-linux-gnu/bits/stdc++.h:108,
from ./Main.cpp:1:
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/random.tcc:895:5: note: candidate: ‘template<class _IntType, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::uniform_int_distribution<_IntType>&)’
operator>>(std::basic_istream<_CharT, _Traits>& __is,
^~~~~~~~
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/random.tcc:895:5: note: template argument deduction/substitution failed:
./Main.cpp:6:16: note: ‘std::basic_ostream<char>’ is not derived from ‘std::basic_istream<_CharT, _Traits>’
cout<<a*b>>endl;
^~~~
In file included from /usr/local/gcc-8.2.0/include/c++/8.2.0/random:51,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/x86_64-pc-linux-gnu/bits/stdc++.h:108,
from ./Main.cpp:1:
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/random.tcc:957:5: note: candidate: ‘template<class _RealType, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::uniform_real_distribution<_IntType>&)’
operator>>(std::basic_istream<_CharT, _Traits>& __is,
^~~~~~~~
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/random.tcc:957:5: note: template argument deduction/substitution failed:
./Main.cpp:6:16: note: ‘std::basic_ostream<char>’ is not derived from ‘std::basic_istream<_CharT, _Traits>’
cout<<a*b>>endl;
^~~~
In file included from /usr/local/gcc-8.2.0/include/c++/8.2.0/random:51,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/x86_64-pc-linux-gnu/bits/stdc++.h:108,
from ./Main.cpp:1:
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/random.tcc:2150:5: note: candidate: ‘template<class _RealType, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::cauchy_distribution<_RealType>&)’
operator>>(std::basic_istream<_CharT, _Traits>& __is,
^~~~~~~~
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/random.tcc:2150:5: note: template argument deduction/substitution failed:
./Main.cpp:6:16: note: ‘std::basic_ostream<char>’ is not derived from ‘std::basic_istream<_CharT, _Traits>’
cout<<a*b>>endl;
^~~~
In file included from /usr/local/gcc-8.2.0/include/c++/8.2.0/random:49,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/x86_64-pc-linux-gnu/bits/stdc++.h:108,
from ./Main.cpp:1:
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/random.h:3644:5: note: candidate: ‘template<class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::bernoulli_distribution&)’
operator>>(std::basic_istream<_CharT, _Traits>& __is,
^~~~~~~~
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/random.h:3644:5: note: template argument deduction/substitution failed:
./Main.cpp:6:16: note: ‘std::basic_ostream<char>’ is not derived from ‘std::basic_istream<_CharT, _Traits>’
cout<<a*b>>endl;
^~~~
In file included from /usr/local/gcc-8.2.0/include/c++/8.2.0/random:51,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/x86_64-pc-linux-gnu/bits/stdc++.h:108,
from ./Main.cpp:1:
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/random.tcc:1101:5: note: candidate: ‘template<class _IntType, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::geometric_distribution<_IntType>&)’
operator>>(std::basic_istream<_CharT, _Traits>& __is,
^~~~~~~~
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/random.tcc:1101:5: note: template argument deduction/substitution failed:
./Main.cpp:6:16: note: ‘std::basic_ostream<char>’ is not derived from ‘std::basic_istream<_CharT, _Traits>’
cout<<a*b>>endl;
^~~~
In file included from /usr/local/gcc-8.2.0/include/c++/8.2.0/random:51,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/x86_64-pc-linux-gnu/bits/stdc++.h:108,
from ./Main.cpp:1:
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/random.tcc:1757:5: note: candidate: ‘template<class _RealType, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::exponential_distribution<_RealType>&)’
operator>>(std::basic_istream<_CharT, _Traits>& __is,
^~~~~~~~
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/random.tcc:1757:5: note: template argument deduction/substitution failed:
./Main.cpp:6:16: note: ‘std::basic_ostream<char>’ is not derived from ‘std::basic_istream<_CharT, _Traits>’
cout<<a*b>>endl;
^~~~
In file included from /usr/local/gcc-8.2.0/include/c++/8.2.0/random:51,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/x86_64-pc-linux-gnu/bits/stdc++.h:108,
from ./Main.cpp:1:
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/random.tcc:2549:5: note: candidate: ‘template<class _RealType, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::weibull_distribution<_RealType>&)’
operator>>(std::basic_istream<_CharT, _Traits>& __is,
^~~~~~~~
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/random.tcc:2549:5: note: template argument deduction/substitution failed:
./Main.cpp:6:16: note: ‘std::basic_ostream<char>’ is not derived from ‘std::basic_istream<_CharT, _Traits>’
cout<<a*b>>endl;
^~~~
In file included from /usr/local/gcc-8.2.0/include/c++/8.2.0/random:51,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/x86_64-pc-linux-gnu/bits/stdc++.h:108,
from ./Main.cpp:1:
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/random.tcc:2625:5: note: candidate: ‘template<class _RealType, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::extreme_value_distribution<_RealType>&)’
operator>>(std::basic_istream<_CharT, _Traits>& __is,
^~~~~~~~
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/random.tcc:2625:5: note: template argument deduction/substitution failed:
./Main.cpp:6:16: note: ‘std::basic_ostream<char>’ is not derived from ‘std::basic_istream<_CharT, _Traits>’
cout<<a*b>>endl;
^~~~
In file included from /usr/local/gcc-8.2.0/include/c++/8.2.0/random:51,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/x86_64-pc-linux-gnu/bits/stdc++.h:108,
from ./Main.cpp:1:
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/random.tcc:175:5: note: candidate: ‘template<class _UIntType, _UIntType __a, _UIntType __c, _UIntType __m, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::linear_congruential_engine<_UIntType, __a, __c, __m>&)’
operator>>(std::basic_istream<_CharT, _Traits>& __is,
^~~~~~~~
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/random.tcc:175:5: note: template argument deduction/substitution failed:
./Main.cpp:6:16: note: ‘std::basic_ostream<char>’ is not derived from ‘std::basic_istream<_CharT, _Traits>’
cout<<a*b>>endl;
^~~~
In file included from /usr/local/gcc-8.2.0/include/c++/8.2.0/random:51,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/x86_64-pc-linux-gnu/bits/stdc++.h:108,
from ./Main.cpp:1:
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/random.tcc:502:5: note: candidate: ‘template<class _UIntType1, long unsigned int __w1, long unsigned int __n1, long unsigned int __m1, long unsigned int __r1, _UIntType1 __a1, long unsigned int __u1, _UIntType1 __d1, long unsigned int __s1, _UIntType1 __b1, long unsigned int __t1, _UIntType1 __c1, long unsigned int __l1, _UIntType1 __f1, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::mersenne_twister_engine<_UIntType, __w, __n, __m, __r, __a, __u, __d, __s, __b, __t, __c, __l, __f>&)’
operator>>(std::basic_istream<_CharT, _Traits>& __is,
^~~~~~~~
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/random.tcc:502:5: note: template argument deduction/substitution failed:
./Main.cpp:6:16: note: ‘std::basic_ostream<char>’ is not derived from ‘std::basic_istream<_CharT, _Traits>’
cout<<a*b>>endl;
^~~~
In file included from /usr/local/gcc-8.2.0/include/c++/8.2.0/random:51,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/x86_64-pc-linux-gnu/bits/stdc++.h:108,
from ./Main.cpp:1:
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/random.tcc:654:5: note: candidate: ‘template<class _UIntType, long unsigned int __w, long unsigned int __s, long unsigned int __r, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::subtract_with_carry_engine<_UIntType, __w, __s, __r>&)’
operator>>(std::basic_istream<_CharT, _Traits>& __is,
^~~~~~~~
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/random.tcc:654:5: note: template argument deduction/substitution failed:
./Main.cpp:6:16: note: ‘std::basic_ostream<char>’ is not derived from ‘std::basic_istream<_CharT, _Traits>’
cout<<a*b>>endl;
^~~~
In file included from /usr/local/gcc-8.2.0/include/c++/8.2.0/random:51,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/x86_64-pc-linux-gnu/bits/stdc++.h:108,
from ./Main.cpp:1:
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/random.tcc:722:5: note: candidate: ‘template<class _RandomNumberEngine, long unsigned int __p, long unsigned int __r, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::discard_block_engine<_RandomNumberEngine, __p, __r>&)’
operator>>(std::basic_istream<_CharT, _Traits>& __is,
^~~~~~~~
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/random.tcc:722:5: note: template argument deduction/substitution failed:
./Main.cpp:6:16: note: ‘std::basic_ostream<char>’ is not derived from ‘std::basic_istream<_CharT, _Traits>’
cout<<a*b>>endl;
^~~~
In file included from /usr/local/gcc-8.2.0/include/c++/8.2.0/random:51,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/x86_64-pc-linux-gnu/bits/stdc++.h:108,
from ./Main.cpp:1:
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/random.tcc:853:5: note: candidate: ‘template<class _RandomNumberEngine, long unsigned int __k, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::shuffle_order_engine<_RandomNumberEngine, __k>&)’
operator>>(std::basic_istream<_CharT, _Traits>& __is,
^~~~~~~~
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/random.tcc:853:5: note: template argument deduction/substitution failed:
./Main.cpp:6:16: note: ‘std::basic_ostream<char>’ is not derived from ‘std::basic_istream<_CharT, _Traits>’
cout<<a*b>>endl;
^~~~
In file included from /usr/local/gcc-8.2.0/include/c++/8.2.0/random:51,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/x86_64-pc-linux-gnu/bits/stdc++.h:108,
from ./Main.cpp:1:
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/random.tcc:1217:5: note: candidate: ‘template<class _IntType, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::negative_binomial_distribution<_IntType>&)’
operator>>(std::basic_istream<_CharT, _Traits>& __is,
^~~~~~~~
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/random.tcc:1217:5: note: template argument deduction/substitution failed:
./Main.cpp:6:16: note: ‘std::basic_ostream<char>’ is not derived from ‘std::basic_istream<_CharT, _Traits>’
cout<<a*b>>endl;
^~~~
In file included from /usr/local/gcc-8.2.0/include/c++/8.2.0/random:51,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/x86_64-pc-linux-gnu/bits/stdc++.h:108,
from ./Main.cpp:1:
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/random.tcc:1428:5: note: candidate: ‘template<class _IntType, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::poisson_distribution<_IntType>&)’
operator>>(std::basic_istream<_CharT, _Traits>& __is,
^~~~~~~~
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/random.tcc:1428:5: note: template argument deduction/substitution failed:
./Main.cpp:6:16: note: ‘std::basic_ostream<char>’ is not derived from ‘std::basic_istream<_CharT, _Traits>’
cout<<a*b>>endl;
^~~~
In file included from /usr/local/gcc-8.2.0/include/c++/8.2.0/random:51,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/x86_64-pc-linux-gnu/bits/stdc++.h:108,
from ./Main.cpp:1:
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/random.tcc:1696:5: note: candidate: ‘template<class _IntType, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::binomial_distribution<_IntType>&)’
operator>>(std::basic_istream<_CharT, _Traits>& __is,
^~~~~~~~
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/random.tcc:1696:5: note: template argument deduction/substitution failed:
./Main.cpp:6:16: note: ‘std::basic_ostream<char>’ is not derived from ‘std::basic_istream<_CharT, _Traits>’
cout<<a*b>>endl;
^~~~
In file included from /usr/local/gcc-8.2.0/include/c++/8.2.0/random:51,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/x86_64-pc-linux-gnu/bits/stdc++.h:108,
from ./Main.cpp:1:
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/random.tcc:1928:5: note: candidate: ‘template<class _RealType1, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::normal_distribution<_RealType>&)’
operator>>(std::basic_istream<_CharT, _Traits>& __is,
^~~~~~~~
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/random.tcc:1928:5: note: template argument deduction/substitution failed:
./Main.cpp:6:16: note: ‘std::basic_ostream<char>’ is not derived from ‘std::basic_istream<_CharT, _Traits>’
cout<<a*b>>endl;
^~~~
In file included from /usr/local/gcc-8.2.0/include/c++/8.2.0/random:51,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/x86_64-pc-linux-gnu/bits/stdc++.h:108,
from ./Main.cpp:1:
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/random.tcc:1991:5: note: candidate: ‘template<class _RealType, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::lognormal_distribution<_RealType>&)’
operator>>(std::basic_istream<_CharT, _Traits>& __is,
^~~~~~~~
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/random.tcc:1991:5: note: template argument deduction/substitution failed:
./Main.cpp:6:16: note: ‘std::basic_ostream<char>’ is not derived from ‘std::basic_istream<_CharT, _Traits>’
cout<<a*b>>endl;
^~~~
In file included from /usr/local/gcc-8.2.0/include/c++/8.2.0/random:51,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/x86_64-pc-linux-gnu/bits/stdc++.h:108,
from ./Main.cpp:1:
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/random.tcc:2063:5: note: candidate: ‘template<class _RealType, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::chi_squared_distribution<_RealType>&)’
operator>>(std::basic_istream<_CharT, _Traits>& __is,
^~~~~~~~
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/random.tcc:2063:5: note: template argument deduction/substitution failed:
./Main.cpp:6:16: note: ‘std::basic_ostream<char>’ is not derived from ‘std::basic_istream<_CharT, _Traits>’
cout<<a*b>>endl;
^~~~
In file included from /usr/local/gcc-8.2.0/include/c++/8.2.0/random:51,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/x86_64-pc-linux-gnu/bits/stdc++.h:108,
from ./Main.cpp:1:
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/random.tcc:2228:5: note: candidate: ‘template<class _RealType, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::fisher_f_distribution<_RealType>&)’
operator>>(std::basic_istream<_CharT, _Traits>& __is,
^~~~~~~~
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/random.tcc:2228:5: note: template argument deduction/substitution failed:
./Main.cpp:6:16: note: ‘std::basic_ostream<char>’ is not derived from ‘std::basic_istream<_CharT, _Traits>’
cout<<a*b>>endl;
^~~~
In file included from /usr/local/gcc-8.2.0/include/c++/8.2.0/random:51,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/x86_64-pc-linux-gnu/bits/stdc++.h:108,
from ./Main.cpp:1:
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/random.tcc:2302:5: note: candidate: ‘template<class _RealType, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::student_t_distribution<_RealType>&)’
operator>>(std::basic_istream<_CharT, _Traits>& __is,
^~~~~~~~
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/random.tcc:2302:5: note: template argument deduction/substitution failed:
./Main.cpp:6:16: note: ‘std::basic_ostream<char>’ is not derived from ‘std::basic_istream<_CharT, _Traits>’
cout<<a*b>>endl;
^~~~
In file included from /usr/local/gcc-8.2.0/include/c++/8.2.0/random:51,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/x86_64-pc-linux-gnu/bits/stdc++.h:108,
from ./Main.cpp:1:
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/random.tcc:2472:5: note: candidate: ‘template<class _RealType1, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::gamma_distribution<_RealType>&)’
operator>>(std::basic_istream<_CharT, _Traits>& __is,
^~~~~~~~
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/random.tcc:2472:5: note: template argument deduction/substitution failed:
./Main.cpp:6:16: note: ‘std::basic_ostream<char>’ is not derived from ‘std::basic_istream<_CharT, _Traits>’
cout<<a*b>>endl;
^~~~
In file included from /usr/local/gcc-8.2.0/include/c++/8.2.0/random:51,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/x86_64-pc-linux-gnu/bits/stdc++.h:108,
from ./Main.cpp:1:
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/random.tcc:2764:5: note: candidate: ‘template<class _IntType, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::discrete_distribution<_IntType>&)’
operator>>(std::basic_istream<_CharT, _Traits>& __is,
^~~~~~~~
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/random.tcc:2764:5: note: template argument deduction/substitution failed:
./Main.cpp:6:16: note: ‘std::basic_ostream<char>’ is not derived from ‘std::basic_istream<_CharT, _Traits>’
cout<<a*b>>endl;
^~~~
In file included from /usr/local/gcc-8.2.0/include/c++/8.2.0/random:51,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/x86_64-pc-linux-gnu/bits/stdc++.h:108,
from ./Main.cpp:1:
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/random.tcc:2979:5: note: candidate: ‘template<class _RealType, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::piecewise_constant_distribution<_RealType>&)’
operator>>(std::basic_istream<_CharT, _Traits>& __is,
^~~~~~~~
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/random.tcc:2979:5: note: template argument deduction/substitution failed:
./Main.cpp:6:16: note: ‘std::basic_ostream<char>’ is not derived from ‘std::basic_istream<_CharT, _Traits>’
cout<<a*b>>endl;
^~~~
In file included from /usr/local/gcc-8.2.0/include/c++/8.2.0/random:51,
from /usr/local/gcc-8.2.0/include/c++/8.2.0/x86_64-pc-linux-gnu/bits/stdc++.h:108,
from ./Main.cpp:1:
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/random.tcc:3195:5: note: candidate: ‘template<class _RealType, class _CharT, class _Traits> std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::piecewise_linear_distribution<_RealType>&)’
operator>>(std::basic_istream<_CharT, _Traits>& __is,
^~~~~~~~
/usr/local/gcc-8.2.0/include/c++/8.2.0/bits/random.tcc:3195:5: note: template argument deduction/substitution failed:
./Main.cpp:6:16: note: ‘std::basic_ostream<char>’ is not derived from ‘std::basic_istream<_CharT, _Traits>’
cout<<a*b>>endl;
^~~~
セット
テストケース