Borderou de evaluare (job #219307)

Compilare: user.cpp: In function ‘int main()’: user.cpp:91:20: warning: statement has no effect [-Wunused-value] user.cpp:7:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:8:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:34:17: warning: ‘t’ may be used uninitialized in this function [-Wuninitialized]