Compilare: user.cpp: In function ‘int main()’: user.cpp:9:12: warning: unused variable ‘n’ [-Wunused-variable] char x,n,pr; ^ user.cpp:17:14: warning: ‘cuv’ may be used uninitialized in this function [-Wmaybe-uninitialized] cuv++; ^ user.cpp:14:14: warning: ‘lit’ may be used uninitialized in this function [-Wmaybe-uninitialized] lit++; ^ user.cpp:16:37: warning: ‘pr’ may be used uninitialized in this function [-Wmaybe-uninitialized] if ((pr>='a'&&pr<='z')||(pr>='A'&&pr<='Z')) ^