# | Time | Username | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
117252 | maho04 | scanf 함수 2 (BSC_0_4) | C++14 | 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 <iostream>
using namespace std;
int main(){
int a;
if(a<10)
{
cout<<("0");
}
else if(a<100)
{
cout<<("00");
}
cout>>a;
}
Compilation message (stderr)
scanf2.cpp: In function 'int main()': scanf2.cpp:13:7: error: no match for 'operator>>' (operand types are 'std::ostream {aka std::basic_ostream<char>}' and 'int') cout>>a; ~~~~^~~ scanf2.cpp:13:7: note: candidate: operator>>(int, int) <built-in> scanf2.cpp:13:7: note: no known conversion for argument 1 from 'std::ostream {aka std::basic_ostream<char>}' to 'int' In file included from /usr/include/c++/7/string:53:0, from /usr/include/c++/7/bits/locale_classes.h:40, from /usr/include/c++/7/bits/ios_base.h:41, from /usr/include/c++/7/ios:42, from /usr/include/c++/7/ostream:38, from /usr/include/c++/7/iostream:39, from scanf2.cpp:1: /usr/include/c++/7/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, _Alloc>&) operator>>(basic_istream<_CharT, _Traits>& __in, ^~~~~~~~ /usr/include/c++/7/bits/basic_string.tcc:1465:5: note: template argument deduction/substitution failed: scanf2.cpp:13:9: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>' cout>>a; ^ In file included from /usr/include/c++/7/istream:991:0, from /usr/include/c++/7/iostream:40, from scanf2.cpp:1: /usr/include/c++/7/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/include/c++/7/bits/istream.tcc:963:5: note: template argument deduction/substitution failed: scanf2.cpp:13:9: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>' cout>>a; ^ In file included from /usr/include/c++/7/istream:991:0, from /usr/include/c++/7/iostream:40, from scanf2.cpp:1: /usr/include/c++/7/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/include/c++/7/bits/istream.tcc:931:5: note: template argument deduction/substitution failed: scanf2.cpp:13:9: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<_CharT, _Traits>' cout>>a; ^ In file included from /usr/include/c++/7/iostream:40:0, from scanf2.cpp:1: /usr/include/c++/7/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/include/c++/7/istream:756:5: note: template argument deduction/substitution failed: scanf2.cpp:13:9: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<char, _Traits>' cout>>a; ^ In file included from /usr/include/c++/7/iostream:40:0, from scanf2.cpp:1: /usr/include/c++/7/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/include/c++/7/istream:761:5: note: template argument deduction/substitution failed: scanf2.cpp:13:9: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<char, _Traits>' cout>>a; ^ In file included from /usr/include/c++/7/iostream:40:0, from scanf2.cpp:1: /usr/include/c++/7/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/include/c++/7/istream:803:5: note: template argument deduction/substitution failed: scanf2.cpp:13:9: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<char, _Traits>' cout>>a; ^ In file included from /usr/include/c++/7/iostream:40:0, from scanf2.cpp:1: /usr/include/c++/7/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/include/c++/7/istream:808:5: note: template argument deduction/substitution failed: scanf2.cpp:13:9: note: 'std::ostream {aka std::basic_ostream<char>}' is not derived from 'std::basic_istream<char, _Traits>' cout>>a; ^ In file included from /usr/include/c++/7/iostream:40:0, from scanf2.cpp:1: /usr/include/c++/7/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/include/c++/7/istream:980:5: note: template argument deduction/substitution failed: /usr/include/c++/7/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&]': scanf2.cpp:13:9: required from here /usr/include/c++/7/istream:980:5: error: no type named 'type' in 'struct std::enable_if<false, void>'