Compilare: user.c: In function ‘main’: user.c:23:2: warning: ignoring return value of ‘fgets’, declared with attribute warn_unused_result [-Wunused-result] fgets(mic, 2000001, fin); ^~~~~~~~~~~~~~~~~~~~~~~~ user.c:24:2: warning: ignoring return value of ‘fgets’, declared with attribute warn_unused_result [-Wunused-result] fgets(mare, 2000001, fin); ^~~~~~~~~~~~~~~~~~~~~~~~~