Compilare: main.cpp: In function 'bool findCombination(int, int, int, int)': main.cpp:15:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 15 | if (index >= loto.size() || sum > targetSum || k > 6) { | ~~~~~~^~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:47:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 47 | for (int i = 0; i < combination.size(); i++) { | ~~^~~~~~~~~~~~~~~~~~~~