Borderou de evaluare (job #488243)

Compilare: user.cpp: In function 'int main()': user.cpp:25:34: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] user.cpp:26:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] user.cpp:28:19: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] user.cpp:31:28: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] user.cpp: In function 'int cb(ELEM)': user.cpp:13:5: warning: 'st' is used uninitialized in this function [-Wuninitialized] user.cpp:13:5: warning: 'dr' is used uninitialized in this function [-Wuninitialized] user.cpp: In function 'int main()': user.cpp:13:5: warning: 'st' may be used uninitialized in this function [-Wuninitialized] user.cpp:12:9: note: 'st' was declared here user.cpp:13:5: warning: 'dr' may be used uninitialized in this function [-Wuninitialized] user.cpp:12:12: note: 'dr' was declared here