Compilare: main.cpp: In function 'int main()': main.cpp:8:30: warning: 'b' may be used uninitialized in this function [-Wmaybe-uninitialized] else if(a<b) return cmmdc(a, b-a); ~~~~~^~~~~~~~ main.cpp:12:5: note: 'b' was declared here int main() ^~~~ main.cpp:20:5: warning: 'a' may be used uninitialized in this function [-Wmaybe-uninitialized] if(c == 1) g << 0; ^~