Compilare: user.cpp: In function ‘int c1()’: user.cpp:21:13: warning: unused variable ‘nou’ [-Wunused-variable] int nod,nou,i,lg; ^ user.cpp:23:9: warning: unused variable ‘c’ [-Wunused-variable] int c=4; ^ user.cpp: In function ‘int c2(int)’: user.cpp:49:17: warning: unused variable ‘dc’ [-Wunused-variable] int j,lg,di,dc,nod,cst,mx=(1<<30),nou,c=15; ^ user.cpp:49:43: warning: unused variable ‘c’ [-Wunused-variable] int j,lg,di,dc,nod,cst,mx=(1<<30),nou,c=15; ^