Compilare: user.c: In function ‘main’: user.c:51: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result user.c:54: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result user.c:56: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result user.c:59: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result user.c:60: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result user.c:50: warning: ‘d’ may be used uninitialized in this function