Compilare: main.cpp: In function 'int main()': main.cpp:20:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 20 | for (auto i = 0; i < loterie.size(); i++) { | ~~^~~~~~~~~~~~~~~~ main.cpp:21:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 21 | for (auto j = i; j < loterie.size(); j++) { | ~~^~~~~~~~~~~~~~~~ main.cpp:22:32: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 22 | for (auto k = j; k < loterie.size(); k++) { | ~~^~~~~~~~~~~~~~~~