Compilare: main.cpp: In function 'void solve()': main.cpp:65:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 65 | for (int i = 0; i < results.size(); ++i) | ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'void solve2()': main.cpp:95:18: warning: unused variable 'value' [-Wunused-variable] 95 | for (const auto value : xuri) | ^~~~~ main.cpp:100:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 100 | for (int i = 0; i < xuri.size(); ++i) | ~~^~~~~~~~~~~~~