Compilare: main.cpp: In function 'int main()': main.cpp:100:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 100 | for(int i = 0; i < l.size(); i++) | ~~^~~~~~~~~~ main.cpp:120:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 120 | for(int i = 0; i < l.size() - 1; i++) | ~~^~~~~~~~~~~~~~ main.cpp:99:16: warning: variable 'conect' set but not used [-Wunused-but-set-variable] 99 | int b = 0, conect = 0, altb = 0, libere = 0, total = 0, c = 0; | ^~~~~~