Borderou de evaluare (job #170921)

Compilare: user.cpp: In function ‘int main()’: user.cpp:7:10: warning: unused variable ‘a’ [-Wunused-variable] user.cpp:7:12: warning: unused variable ‘b’ [-Wunused-variable] user.cpp:7:34: warning: variable ‘pp’ set but not used [-Wunused-but-set-variable] user.cpp:8:31: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:9:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:10:16: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:15:37: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]