2020-01-05

清华集训

3 minutes read (About 488 words)

清华集训2012 模积和题解

清华集训2012 模积和题解

$\text{Description}$

求

$\sum_{i=1}^{n} \sum_{j=1}^{m} (n \bmod i) \times (m \bmod j), i \neq j$

$n,m\le 10^9$

Read More

Posts

69

Categories

24

Tags

53

Your browser is out-of-date!

Update your browser to view this website correctly. Update my browser now