Borderou de evaluare (job #12358)

Compilare: user.cpp: In function 'int main()': user.cpp:8:22: warning: unused variable 'j' [-Wunused-variable] user.cpp:8:24: warning: variable 'k' set but not used [-Wunused-but-set-variable] user.cpp:9:24: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] user.cpp:11:38: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]