Borderou de evaluare (job #276273)

Compilare: user.c: In function ‘main’: user.c:6:27: warning: unused variable ‘c2’ [-Wunused-variable] user.c:6:24: warning: unused variable ‘c1’ [-Wunused-variable] user.c:6:21: warning: unused variable ‘cn’ [-Wunused-variable] user.c:9:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] user.c:11:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result]