Compilare: main.cpp: In function 'int main()': main.cpp:38:18: warning: unused variable 'ctc' [-Wunused-variable] 38 | int x, y, l, ctc = 0, mijl; | ^~~ In file included from /usr/include/c++/12.2.1/vector:64, from main.cpp:3: In member function 'constexpr std::vector<_Tp, _Alloc>::size_type std::vector<_Tp, _Alloc>::size() const [with _Tp = std::pair<int, int>; _Alloc = std::allocator<std::pair<int, int> >]', inlined from 'int main()' at main.cpp:55:50: /usr/include/c++/12.2.1/bits/stl_vector.h:988:66: warning: 'mijl' may be used uninitialized [-Wmaybe-uninitialized] 988 | { return size_type(this->_M_impl._M_finish - this->_M_impl._M_start); } | ~~~~~~~~~~~~~~^~~~~~~~ main.cpp: In function 'int main()': main.cpp:38:27: note: 'mijl' was declared here 38 | int x, y, l, ctc = 0, mijl; | ^~~~