526互联

Destruct

[ABC166E] This Message Will Self-Destruct in 5s

[This Message Will Self-Destruct in 5s の 传送门](https://www.luogu.com.cn/problem/AT_abc166_e) ## Solution 首先看到 > $j-i=A_i+A_j$ 转换一下，$i+a_i=j-a_j$。 接下来，对 ......
Self-Destruct Destruct Message 166E This
共1篇  :1/1页 首页上一页1下一页尾页