Compilare: main.cpp: In function 'int main()': main.cpp:15:11: warning: unused variable 'j' [-Wunused-variable] int i,j; ^ main.cpp:17:9: warning: unused variable 'a_nou' [-Wunused-variable] int a_nou,b_nou,c_nou; ^~~~~ main.cpp:17:15: warning: unused variable 'b_nou' [-Wunused-variable] int a_nou,b_nou,c_nou; ^~~~~ main.cpp:17:21: warning: unused variable 'c_nou' [-Wunused-variable] int a_nou,b_nou,c_nou; ^~~~~