hdu 6049 Sdjpx Is Happy
题： OwO http://acm.hdu.edu.cn/showproblem.php?pid=6049 (2017 Multi-University Training Contest ...
花费 5 ms
hdu 6046 hash
题： OwO http://acm.hdu.edu.cn/showproblem.php?pid=6046 （2017 Multi-University Training Contest ...