Compilare: user.cpp: In function ‘bool ratata()’: user.cpp:31:11: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(viz[i]==pas) ^ user.cpp: In function ‘int main()’: user.cpp:41:11: warning: unused variable ‘nr’ [-Wunused-variable] int i,nr=1,j,nrr=0; ^ user.cpp: In function ‘bool ratata()’: user.cpp:37:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ user.cpp: In function ‘void df(int, int)’: user.cpp:10:16: warning: ‘i’ is used uninitialized in this function [-Wuninitialized] viz[i]=pass; ^ user.cpp: In function ‘bool ratata()’: user.cpp:28:14: warning: ‘i’ is used uninitialized in this function [-Wuninitialized] df(x[i],1); ^