Borderou de evaluare (job #468737)

Compilare: user.cpp:2:0: warning: "M_PI" redefined [enabled by default] /usr/include/math.h:367:0: note: this is the location of the previous definition user.cpp: In function ‘int main()’: user.cpp:49:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] user.cpp:47:18: warning: unused variable ‘dr’ [-Wunused-variable] user.cpp:22:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:23:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:26:30: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:30:39: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]