Compilare: In file included from /usr/include/c++/12.2.1/vector:65, from main.cpp:6: In member function 'constexpr std::vector<bool, _Alloc>::reference std::vector<bool, _Alloc>::operator[](size_type) [with _Alloc = std::allocator<bool>]', inlined from 'double prim(std::vector<std::pair<int, int> >)' at main.cpp:131:30: /usr/include/c++/12.2.1/bits/stl_bvector.h:1036:23: warning: 'nod_temporar' may be used uninitialized [-Wmaybe-uninitialized] 1036 | { return begin()[__n]; } | ~~~~~~~^ main.cpp: In function 'double prim(std::vector<std::pair<int, int> >)': main.cpp:123:13: note: 'nod_temporar' was declared here 123 | int nod_temporar; | ^~~~~~~~~~~~