Borderou de evaluare (job #287730)

Compilare: user.cpp: In function 'int main()': user.cpp:52:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:51:9: warning: unused variable 'nr' [-Wunused-variable] user.cpp:25:38: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] user.cpp:26:40: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] user.cpp:30:26: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] user.cpp:32:37: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]