Compilare: main.cpp: In function 'int main()': main.cpp:49:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 49 | for(int i = 0; i < lin.size(); i++) | ~~^~~~~~~~~~~~ main.cpp:67:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 67 | for(int i = 0; i < lin.size(); i++) | ~~^~~~~~~~~~~~