Wrong Answer
/in/foo.cc: In function 'int main(int, const char**)':
/in/foo.cc:41:8: warning: 'dis' may be used uninitialized in this function [-Wmaybe-uninitialized]
printf("%d", dis);
~~~~~~^~~~~~~~~~~
/in/foo.cc: In function 'int main(int, const char**)':
/in/foo.cc:41:8: warning: 'dis' may be used uninitialized in this function [-Wmaybe-uninitialized]
printf("%d", dis);
~~~~~~^~~~~~~~~~~
