Problem	01knapsack
User	yuxiangt
Submission Time	2026-02-14 21:43:16
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

01knapsack.cpp: In function ‘int main()’:
01knapsack.cpp:20:45: error: no match for ‘operator-’ (operand types are ‘int’ and ‘__gnu_cxx::__alloc_traits<std::allocator<std::pair<int, int> >, std::pair<int, int> >::value_type’ {aka ‘std::pair<int, int>’})
20 | dp[W] = max(dp[w], items[i].second + dp[W-items[i]].first);
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 01knapsack.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<_IteratorR>&)’
415 | opera