Compilare: user.c: In function ‘main’: user.c:33: warning: suggest explicit braces to avoid ambiguous ‘else’ user.c:39: warning: suggest explicit braces to avoid ambiguous ‘else’ user.c:45: warning: suggest explicit braces to avoid ambiguous ‘else’ user.c:51: warning: suggest explicit braces to avoid ambiguous ‘else’ user.c:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result user.c:12: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result user.c:19: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result user.c:27: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result