Borderou de evaluare (job #319758)

Compilare: user.cpp: In function ‘int main()’: user.cpp:166:9: warning: unused variable ‘i’ [-Wunused-variable] user.cpp:166:13: warning: unused variable ‘j’ [-Wunused-variable] user.cpp:168:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:169:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result]