Compilare: user.c: In function ‘main’: user.c:94: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result user.c:97: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result user.c:100: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result user.c:106: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result user.c:110: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result user.c: In function ‘Elimina’: user.c:51: warning: control reaches end of non-void function