Borderou de evaluare (job #170364)

Compilare: user.cpp: In function ‘int main()’: user.cpp:7:21: warning: unused variable ‘j’ [-Wunused-variable] user.cpp:7:23: warning: unused variable ‘ok’ [-Wunused-variable] user.cpp:7:34: warning: unused variable ‘x’ [-Wunused-variable] user.cpp:7:46: warning: variable ‘NR’ set but not used [-Wunused-but-set-variable] user.cpp:12:26: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]