Compilare: user.c: In function ‘main’: user.c:61:9: warning: unused variable ‘i’ [-Wunused-variable] int i; ^ user.c:39:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d ",&t); ^ user.c:41:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%s %s %s ",a,st,dr); ^