Eroare de compilare: main.cpp: In function 'void solve()': main.cpp:128:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 128 | for(int i = 0; i < mp1[val].size(); i++){ | ~~^~~~~~~~~~~~~~~~~ In file included from /usr/include/c++/12.2.1/string:48, from /usr/include/c++/12.2.1/bits/locale_classes.h:40, from /usr/include/c++/12.2.1/bits/ios_base.h:41, from /usr/include/c++/12.2.1/ios:42, from /usr/include/c++/12.2.1/istream:38, from /usr/include/c++/12.2.1/sstream:38, from /usr/include/c++/12.2.1/complex:45, from /usr/include/c++/12.2.1/ccomplex:39, from /usr/include/c++/12.2.1/x86_64-pc-linux-gnu/bits/stdc++.h:54, from main.cpp:4: /usr/include/c++/12.2.1/bits/stl_function.h: In instantiation of 'constexpr bool std::less<_Tp>::operator()(const _Tp&, const _Tp&) const [with _Tp = Mint]': /usr/include/c++/12.2.1/bits/stl_map.h:509:32: required from 'std::map<_Key, _Tp, _Compare, _Alloc>::mapped_type& std::map<_Key, _Tp, _Compare, _Alloc>::operator[](const key_type&) [with _Key = Mint; _Tp = int; _Compare = std::less<Mint>; _Alloc = std::allocator<std::pair<const Mint, int> >; mapped_type = int; key_type = Mint]' main.cpp:115:13: required from here /usr/include/c++/12.2.1/bits/stl_function.h:408:20: error: no match for 'operator<' (operand types are 'const Mint' and 'const Mint') 408 | { return __x < __y; } | ~~~~^~~~~ In file included from /usr/include/c++/12.2.1/bits/stl_algobase.h:67, from /usr/include/c++/12.2.1/bits/specfun.h:45, from /usr/include/c++/12.2.1/cmath:1935, from /usr/include/c++/12.2.1/x86_64-pc-linux-gnu/bits/stdc++.h:41: /usr/include/c++/12.2.1/bits/stl_iterator.h:579:5: note: candidate: 'template<class _IteratorL, class _IteratorR> requires three_way_comparable_with<_IteratorR, _IteratorL, std::partial_ordering> constexpr std::compare_three_way_result_t<_IteratorL, _IteratorR> std::operator<=>(const reverse_iterator<_IteratorL>&, const reverse_iterator<_IteratorR>&)' (reversed) 579 | operator<=>(const reverse_iterator<_IteratorL>& __x, | ^~~~~~~~ /usr/include/c++/12.2.1/bits/stl_iterator.h:579:5: note: template argument deduction/substitution failed: /usr/include/c++/12.2.1/bits/stl_function.h:408:20: note: 'const Mint' is not derived from 'const std::reverse_iterator<_IteratorL>' 408 | { return __x < __y; } | ~~~~^~~~~ /usr/include/c++/12.2.1/bits/stl_iterator.h:1668:5: note: candidate: 'template<class _IteratorL, class _IteratorR> requires three_way_comparable_with<_IteratorR, _IteratorL, std::partial_ordering> constexpr std::compare_three_way_result_t<_IteratorL, _IteratorR> std::operator<=>(const move_iterator<_IteratorL>&, const move_iterator<_IteratorR>&)' (reversed) 1668 | operator<=>(const move_iterator<_IteratorL>& __x, | ^~~~~~~~ /usr/include/c++/12.2.1/bits/stl_iterator.h:1668:5: note: template argument deduction/substitution failed: /usr/include/c++/12.2.1/bits/stl_function.h:408:20: note: 'const Mint' is not derived from 'const std::move_iterator<_IteratorL>' 408 | { return __x < __y; } | ~~~~^~~~~ In file included from /usr/include/c++/12.2.1/bits/stl_algobase.h:64: /usr/include/c++/12.2.1/bits/stl_pair.h:647:5: note: candidate: 'template<class _T1, class _T2> constexpr std::common_comparison_category_t<decltype (std::__detail::__synth3way(declval<_T1&>(), declval<_T1&>())), decltype (std::__detail::__synth3way(declval<_T2&>(), declval<_T2&>()))> std::operator<=>(const pair<_T1, _T2>&, const pair<_T1, _T2>&)' (rewritten) 647 | operator<=>(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y) | ^~~~~~~~ /usr/include/c++/12.2.1/bits/stl_pair.h:647:5: note: template argument deduction/substitution failed: /usr/include/c++/12.2.1/bits/stl_function.h:408:20: note: 'const Mint' is not derived from 'const std::pair<_T1, _T2>' 408 | { return __x < __y; } | ~~~~^~~~~ /usr/include/c++/12.2.1/bits/stl_iterator.h:597:5: note: candidate: 'template<class _Iterator> requires three_way_comparable<_Iterator, std::partial_ordering> constexpr std::compare_three_way_result_t<_Iterator, _Iterator> std::operator<=>(const reverse_iterator<_IteratorL>&, const reverse_iterator<_IteratorL>&)' (rewritten) 597 | operator<=>(const reverse_iterator<_Iterator>& __x, | ^~~~~~~~ /usr/include/c++/12.2.1/bits/stl_iterator.h:597:5: note: template argument deduction/substitution failed: Non zero exit status: 1