Compilare: main.cpp: In function 'void solve()': main.cpp:60:43: warning: comparison of integer expressions of different signedness: '__gnu_cxx::__alloc_traits<std::allocator<short int>, short int>::value_type' {aka 'short int'} and 'std::vector<pct>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 60 | while(!solGasit && pnt_arr.back() < v.size() - 1) { | ~~~~~~~~~~~~~~~^~~~~~~~~~~~~~ main.cpp:69:31: warning: comparison of integer expressions of different signedness: 'std::vector<short int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 69 | if(pnt_arr.size() == ans.numberQueens) { | ~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~ main.cpp:71:38: warning: comparison of integer expressions of different signedness: 'std::vector<short int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 71 | } else if(pnt_arr.size() > ans.numberQueens) { | ~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~ main.cpp:75:31: warning: comparison of integer expressions of different signedness: 'std::vector<short int>::size_type' {aka 'long unsigned int'} and 'short int' [-Wsign-compare] 75 | if(pnt_arr.size() <= nr_lib) { | ~~~~~~~~~~~~~~~^~~~~~~~~