Borderou de evaluare (job #159270)

Compilare: user.c: In function ‘main’: user.c:29:16: warning: unused variable ‘c’ [-Wunused-variable] user.c:29:14: warning: unused variable ‘r’ [-Wunused-variable] user.c:29:12: warning: unused variable ‘k’ [-Wunused-variable] user.c:18:13: warning: unused variable ‘a’ [-Wunused-variable] user.c:21:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] user.c:23:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result]