Borderou de evaluare (job #292508)

Compilare: user.cpp: In function 'int main()': user.cpp:17:40: warning: unused variable 'suma' [-Wunused-variable] user.cpp:17:45: warning: unused variable 'flag' [-Wunused-variable] user.cpp:17:50: warning: unused variable 'j' [-Wunused-variable] user.cpp:20:24: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] user.cpp:25:37: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] user.cpp:51:19: warning: 'nr' may be used uninitialized in this function [-Wuninitialized]