Borderou de evaluare (job #222695)

Compilare: user.c: In function ‘main’: user.c:36:9: warning: implicit declaration of function ‘abs’ [-Wimplicit-function-declaration] user.c:11:10: warning: variable ‘ch’ set but not used [-Wunused-but-set-variable] user.c:12:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] user.c:22:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] user.c:26:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result]