Compilare: main.cpp: In function 'std::vector<int> prodNumMari(std::vector<int>, int)': main.cpp:50:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 50 | for (int i = 1; i < elem1.size(); i++) | ~~^~~~~~~~~~~~~~ main.cpp: In function 'void afisFact()': main.cpp:90:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 90 | for (int i = 0; i < factor.size(); i++) | ~~^~~~~~~~~~~~~~~ main.cpp:93:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 93 | for (int j = 0; j < factI.size(); j++) | ~~^~~~~~~~~~~~~~