Borderou de evaluare (job #58089)

Compilare: user.cpp: In function ‘int main()’: user.cpp:17:21: warning: variable ‘X’ set but not used [-Wunused-but-set-variable] user.cpp:17:24: warning: variable ‘Y’ set but not used [-Wunused-but-set-variable] user.cpp:19:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:20:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:22:43: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:27:32: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:16:5: warning: ‘end’ may be used uninitialized in this function [-Wuninitialized] user.cpp:17:27: warning: ‘start’ may be used uninitialized in this function [-Wuninitialized]