Borderou de evaluare (job #138691)

Compilare: user.c: In function ‘main’: user.c:8:32: warning: unused variable ‘u’ [-Wunused-variable] user.c:8:23: warning: unused variable ‘t’ [-Wunused-variable] user.c:12:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] user.c:16:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] user.c:55:27: warning: ‘poz’ may be used uninitialized in this function [-Wuninitialized]