Compilare: user.c: In function ‘intersect’: user.c:20: warning: unused variable ‘det’ user.c: In function ‘pasul_unu’: user.c:65: warning: unused variable ‘j’ user.c: In function ‘pasul_doi’: user.c:115: warning: unused variable ‘j’ user.c: In function ‘pasul_trei’: user.c:172: warning: unused variable ‘B’ user.c:170: warning: unused variable ‘j’ user.c:170: warning: unused variable ‘i’ user.c: In function ‘read_data’: user.c:207: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result user.c:210: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result user.c: In function ‘main’: user.c:225: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result user.c:226: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result