Borderou de evaluare (job #292052)

Compilare: user.cpp: In function 'int main()': user.cpp:50:13: warning: the address of 'int ech()' will always evaluate as 'true' [-Waddress] user.cpp:28:33: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] user.cpp:29:35: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]