Borderou de evaluare (job #290999)

Compilare: user.cpp: In function 'int main()': user.cpp:37:35: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] user.cpp:38:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] user.cpp:54:20: warning: array subscript is above array bounds [-Warray-bounds] user.cpp:56:1: warning: 'r' may be used uninitialized in this function [-Wuninitialized]