Compilare: main.cpp: In function 'int ford()': main.cpp:80:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ main.cpp: In function 'int main()': main.cpp:115:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<afis.size();i++) ~^~~~~~~~~~~~