Compilare: user.cpp: In function ‘int main()’: user.cpp:24:19: warning: unused variable ‘k’ [-Wunused-variable] int npasi, i, k, flag, xmax, sens, ymax, xmin, ymin; ^ user.cpp:24:22: warning: variable ‘flag’ set but not used [-Wunused-but-set-variable] int npasi, i, k, flag, xmax, sens, ymax, xmin, ymin; ^ user.cpp: In function ‘int nrDir(char)’: user.cpp:15:1: warning: control reaches end of non-void function [-Wreturn-type] } ^