Compilare: user.cpp: In function ‘void lee()’: user.cpp:65:19: warning: unused variable ‘viitor’ [-Wunused-variable] triplu curent,viitor; ^~~~~~ user.cpp: In function ‘void citire()’: user.cpp:31:34: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%i %i %i",&n,&m,&k); ^ user.cpp:32:44: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%i %i %i %i",&xi,&yi,&xf,&yf); ^ user.cpp:42:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%i",&a); ^