Compilare: user.cpp:38:5: warning: "/*" within comment [-Wcomment] /*for(i = 1; i <= n ; ++i) ^ user.cpp: In function ‘int main()’: user.cpp:14:9: warning: unused variable ‘i’ [-Wunused-variable] int i, j, l; ^ user.cpp:14:12: warning: unused variable ‘j’ [-Wunused-variable] int i, j, l; ^ user.cpp:14:15: warning: unused variable ‘l’ [-Wunused-variable] int i, j, l; ^