Compilare: user.cpp: In function ‘void refacdrum()’: user.cpp:15:9: warning: unused variable ‘i’ [-Wunused-variable] int i, j; ^ user.cpp:15:12: warning: unused variable ‘j’ [-Wunused-variable] int i, j; ^ user.cpp: In function ‘void sortaretopo()’: user.cpp:40:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 0; i < v[nod].size(); i++){ ^ user.cpp:31:12: warning: unused variable ‘j’ [-Wunused-variable] int i, j; ^ user.cpp: In function ‘void afis()’: user.cpp:55:12: warning: unused variable ‘j’ [-Wunused-variable] int i, j; ^