Borderou de evaluare (job #7259)

Compilare: user.cpp: In function ‘int main()’: user.cpp:28:9: warning: unused variable ‘c’ [-Wunused-variable] user.cpp:28:23: warning: unused variable ‘nr’ [-Wunused-variable] user.cpp:28:28: warning: unused variable ‘x’ [-Wunused-variable] user.cpp:26:29: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:27:31: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, 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]