Borderou de evaluare (job #123932)

Compilare: user.cpp: In function ‘int main()’: user.cpp:5:15: warning: unused variable ‘cn’ [-Wunused-variable] user.cpp:5:48: warning: unused variable ‘cx’ [-Wunused-variable] user.cpp:5:51: warning: unused variable ‘cy’ [-Wunused-variable] user.cpp:6:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:7:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result]