QOJ.ac
QOJ
User profile
hutality
Rating
1800
Contribution
0
Usergroup
Default
Motto
$$[x^n](1-x)^{-\frac{1}{2}} \exp\left(\frac{x(1+x)}{2-2x}\right)\frac{\left(\frac{2-x}{2-2x}\right)^k}{k!}\cdot\,_0 F _1 \left(;k+1;x\left(\frac{2-x}{2-2x}\right)^2\right)$$
Rating changes
Accepted problems：83 problems
14035343448949149249349449854454554661661762064164264865065165394413792350239323952397239924002401240324042405270827672768276927702771277227732774277527762777277829582960296129622963296429652966296929702971401044474661484548914900490749144918492450815082508550865087513751395140514151435147514952165416542013269