Problem	foodchain
User	wenxin1017
Submission Time	2023-12-11 13:55:34
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

foodchain.cpp: In function ‘int main()’:
foodchain.cpp:15:9: error: no match for ‘operator>>’ (operand types are ‘std::ostream’ {aka ‘std::basic_ostream<char>’} and ‘long long unsigned int’)
15 | cout >> R;
| ~~~~ ^~ ~
| | |
| | long long unsigned int
| std::ostream {aka std::basic_ostream<char>}
foodchain.cpp:15:9: note: candidate: ‘operator>>(int, long long unsigned int)’ <built-in>
15 | cout >> R;
| ~~~~~^~~~
foodchain.cpp:15:9: 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++/9/bits/stdc++.h:45,
from foodchain.cpp:1:
/usr/include/c++/9/cstddef:140:5: note: candidate: ‘template<class _IntegerType> constexpr std::__byte_op_t<_IntegerType> std::operator>>(std::byte, _IntegerType)’
1