Compilare: main.cpp: In function 'int numara(unsigned int, unsigned int)': main.cpp:23:10: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=1;i<=n;i++) ~^~~ main.cpp:24:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=1;j<=n;j++) ~^~~ main.cpp:27:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^