Compilare: user.cpp: In function ‘int main()’: user.cpp:27:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d%d",&n,&c); ^ user.cpp:29:29: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (fin,"%d",&x); ^ user.cpp:57:9: warning: ‘l’ may be used uninitialized in this function [-Wmaybe-uninitialized] if (maxi<l){ ^~