agenda.c: In function 'main': agenda.c:106: warning: unused variable 'aux' agenda.c:108: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result agenda.c: In function 'luna': agenda.c:20: warning: 't' may be used uninitialized in this function agenda.c:19: warning: 'nrluna' may be used uninitialized in this function agenda.c: In function 'main': agenda.c:106: warning: 'sf' may be used uninitialized in this function