Borderou de evaluare (job #61325)

Compilare: user.c: In function ‘main’: user.c:32:17: warning: implicit declaration of function ‘abs’ [-Wimplicit-function-declaration] user.c:14:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] user.c:27:19: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] user.c:43:16: warning: ‘poz’ may be used uninitialized in this function [-Wuninitialized] user.c:50:23: warning: ‘x’ may be used uninitialized in this function [-Wuninitialized]