Compilare: user.c: In function ‘main’: user.c:16: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result user.c:22: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result user.c:28: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result user.c:31: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result user.c:38: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result user.c:44: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result