Fibonacci Sum-HDU 6755
传送门 思路
对着式子瞎弄一顿,最后把通项公式套进去发现 a n s ∑ i 0 n 1 5 [ ( 1 5 2 ) i c − ( 1 − 5 2 ) i c ] k 1 5 ∑ i 0 n ( [ 1 5 2 ] i c [ − ( 1 − 5 2 ) i c ] ) k ans\sum_{i0}^{n}\frac{1}{\sqrt{5}}[(\frac{…
记录一下,我在安装插件时遇到的问题
rabbitmq-plugins.bat enable rabbitmq_management响应: Plugin configuration unchanged.
Enabling plugins on node rabbitXXXX-R440-S1:
rabbitmq_management
The following plugins have been configured:rabbi…