Borderou de evaluare (job #2632)

Compilare: user.cpp: In function ‘int main()’: user.cpp:48:19: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] user.cpp:25:21: warning: unused variable ‘nr’ [-Wunused-variable] user.cpp:23:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:24:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:26:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:29:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]