Borderou de evaluare (job #226438)

Compilare: user.cpp: In function ‘int main()’: user.cpp:21:21: warning: unused variable ‘j’ [-Wunused-variable] user.cpp:21:42: warning: unused variable ‘ok’ [-Wunused-variable] user.cpp:22:44: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:23:46: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:24:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:27:30: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]