Borderou de evaluare (job #46570)

Compilare: user.cpp: In function ‘int main()’: user.cpp:15:19: warning: unused variable ‘nr’ [-Wunused-variable] user.cpp:15:24: warning: unused variable ‘n1’ [-Wunused-variable] user.cpp:15:27: warning: unused variable ‘n2’ [-Wunused-variable] user.cpp:13:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:14:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:17:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]