Compilare: user.cpp: In function ‘int main()’: user.cpp:8:25: warning: unused variable ‘a’ [-Wunused-variable] int n,i,j,m,l=0,p=1,a,min=0,t,c,l2,m2; ^ user.cpp:8:37: warning: unused variable ‘l2’ [-Wunused-variable] int n,i,j,m,l=0,p=1,a,min=0,t,c,l2,m2; ^ user.cpp:56:13: warning: ‘t’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(t==0) ^