摘要: 一道偏结论的题。当 \(n=2^{k+1}\) 时 \(\sum_{i=0,\text{popcount}(i)\equiv 0\pmod 2}^{2^{k+1}-1}i^k=\sum_{i=0,\text{popcount}(i)\equiv 1\pmod 2}^{2^{k+1}-1}i^k\) 阅读全文
posted @ 2021-03-28 15:24 AC-Evil 阅读(123) 评论(0) 推荐(0) 编辑