Borderou de evaluare (job #18058)

Compilare: user.c: In function ‘main’: user.c:19:17: warning: suggest parentheses around assignment used as truth value [-Wparentheses] user.c:8:11: warning: unused variable ‘a’ [-Wunused-variable] user.c:13:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] user.c:47:15: warning: ‘pzo’ may be used uninitialized in this function [-Wuninitialized] user.c:48:15: warning: ‘poz’ may be used uninitialized in this function [-Wuninitialized]