Compilare: main.cpp: In function 'int main()': main.cpp:44:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 44 | for(int j=0;j<v[g].size();j++) | ~^~~~~~~~~~~~ main.cpp:54:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 54 | for(int j=0;j<v[g].size();j++) | ~^~~~~~~~~~~~ main.cpp: In function 'int hASH(int)': main.cpp:24:12: warning: 'galeata' may be used uninitialized [-Wmaybe-uninitialized] 24 | return galeata; | ^~~~~~~ main.cpp:14:9: note: 'galeata' was declared here 14 | int galeata; | ^~~~~~~ In file included from /usr/include/c++/12.2.1/vector:64, from main.cpp:2: In member function 'constexpr void std::vector<_Tp, _Alloc>::pop_back() [with _Tp = int; _Alloc = std::allocator<int>]', inlined from 'int main()' at main.cpp:48:34: /usr/include/c++/12.2.1/bits/stl_vector.h:1320:9: warning: 'galeata' may be used uninitialized [-Wmaybe-uninitialized] 1320 | --this->_M_impl._M_finish; | ^~ main.cpp: In function 'int main()': main.cpp:14:9: note: 'galeata' was declared here 14 | int galeata; | ^~~~~~~