Compilare: user.cpp: In function ‘void numarare()’: user.cpp:37:13: warning: unused variable ‘c’ [-Wunused-variable] int i,j,c; ^ user.cpp: In function ‘int main()’: user.cpp:51:9: warning: unused variable ‘R’ [-Wunused-variable] int R=0,G=0,B=0; ^ user.cpp:51:13: warning: unused variable ‘G’ [-Wunused-variable] int R=0,G=0,B=0; ^ user.cpp:51:17: warning: unused variable ‘B’ [-Wunused-variable] int R=0,G=0,B=0; ^