Compilare: user.c: In function ‘main’: user.c:58: 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:61: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result user.c:64: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result