HBC214017Squared Permutation,线段树,树状数组,数据结构Charging题解

Xxy is the king of the universe. In order to resist the invasion, he ordered the construction of man...

算法基础篇 2023-11-12 56 #HBC214017Squared Permutation #线段树 #树状数组 #数据结构Charging题解