Problem	duckhunt21
User	YSH2020
Submission Time	2025-12-05 09:12:40
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

duckhunt21.cpp: In lambda function:
duckhunt21.cpp:44:9: error: ‘ranges’ has not been declared
44 | ranges::copy(unused, back_inserter(all));
| ^~~~~~
duckhunt21.cpp:46:9: error: ‘ranges’ has not been declared
46 | ranges::sort(used);
| ^~~~~~
duckhunt21.cpp:48:9: error: ‘ranges’ has not been declared
48 | ranges::sort(all);
| ^~~~~~
duckhunt21.cpp: In function ‘int main()’:
duckhunt21.cpp:56:50: error: ‘views’ has not been declared
56 | const auto [first_used, first_all]{solve(A | views::take(N / 2))};
| ^~~~~
duckhunt21.cpp:60:52: error: ‘views’ has not been declared
60 | const auto [second_used, second_all]{solve(A | views::reverse | views::take((N + 1) / 2))};
| ^~~~~
duckhunt21.cpp:60:69: error: ‘views’ has not been declared
60