Compilare: main.cpp: In function 'int main()': main.cpp:71:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<cerc>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 71 | for(int i = 0;i < obj.second.size() - 1;i++) | ~~^~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In lambda function: main.cpp:64:14: warning: control reaches end of non-void function [-Wreturn-type] 64 | }); | ^