Borderou de evaluare (job #29793)

Compilare: user.cpp: In function ‘void rec(int, int)’: user.cpp:11:8: warning: unused variable ‘o’ [-Wunused-variable] user.cpp:11:12: warning: unused variable ‘cate’ [-Wunused-variable] user.cpp:11:17: warning: unused variable ‘med’ [-Wunused-variable] user.cpp: In function ‘int main()’: user.cpp:36:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] 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:38:15: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:42:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]