Compilare: user.cpp: In function ‘void shirC(int, int*)’: user.cpp:10:9: warning: unused variable ‘nr’ [-Wunused-variable] int nr=0; ^ user.cpp: In function ‘int main()’: user.cpp:30:13: warning: unused variable ‘a’ [-Wunused-variable] int N,Q,a,b; ^ user.cpp:30:15: warning: unused variable ‘b’ [-Wunused-variable] int N,Q,a,b; ^