Borderou de evaluare (job #414901)

Compilare: user.c: In function ‘main’: user.c:52:5: warning: implicit declaration of function ‘floor’ [-Wimplicit-function-declaration] user.c:52:9: warning: incompatible implicit declaration of built-in function ‘floor’ [enabled by default] user.c:17:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] user.c:21:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] user.c:52:14: warning: ‘dif’ may be used uninitialized in this function [-Wuninitialized]