Compilare: main.cpp: In function 'int main()': main.cpp:50:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<double>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 50 | if (j + 1 == aux.size()) { | ~~~~~~^~~~~~~~~~~~~ main.cpp:71:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<double>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 71 | if (j + 1 == aux.size()) { | ~~~~~~^~~~~~~~~~~~~