Compilare: user.cpp: In function ‘int main()’: user.cpp:37:21: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d ",&n); ^ user.cpp:42:32: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d ",&val); ^ user.cpp:77:23: warning: ‘pozy’ may be used uninitialized in this function [-Wmaybe-uninitialized] pozy+=diry[_dir]; ^ user.cpp:76:23: warning: ‘pozx’ may be used uninitialized in this function [-Wmaybe-uninitialized] pozx+=dirx[_dir]; ^