Problem	exam
User	ansellee
Submission Time	2023-12-19 23:28:30
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

exam.cpp: In function ‘int main()’:
exam.cpp:10:16: error: no match for ‘operator-’ (operand types are ‘std::istream’ {aka ‘std::basic_istream<char>’} and ‘const char [2]’)
10 | cout << ((cin-"0") * (cin-"0"));
| ~~~^~~~
| | |
| | const char [2]
| std::istream {aka std::basic_istream<char>}
In file included from /usr/include/c++/9/bits/stl_algobase.h:67,
from /usr/include/c++/9/bits/char_traits.h:39,
from /usr/include/c++/9/ios:40,
from /usr/include/c++/9/ostream:38,
from /usr/include/c++/9/iostream:39,
from exam.cpp:1:
/usr/include/c++/9/bits/stl_iterator.h:415:5: note: candidate: ‘template<class _IteratorL, class _IteratorR> constexpr decltype ((__y.base() - __x.base())) std::operator-(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator