QOJ.ac
QOJ
User profile
AFewSuns
Rating
2558
Contribution
9
Usergroup
Default
Motto
$\displaystyle\sum_{n \geq 0}{(x+y)^n\frac{u^n}{n!}}=\sum_{k \geq 0}\frac{x}{x-kz}(x-kz)^k\frac{u^k}{k!}\sum_{l \geq 0}\frac{(y+kz)^l}{l!}u^l$
Rating changes
Accepted problems：266 problems
555967107141143144149217244249273415464495499552601602603618619785786787788831833836837892895898899905906956959961990995996997998999100210031004100511671189119311971212124312491250125212811283135914071432143716521779181118381844184518561878190719632021207121032158217822132214226722862348235124022421242424252426248625482555256026012603264627092717272328302834283530023029309833073576381639943998400042074217421842324406442745134549462546304648467547584802480848304832489649284996501850195020502450345035503650905095517552365256528053385419543954465504551955235530556856575659574057495809626762986299630863096320632563316366638064046413645265026508650965116537654066086626662766286629663066356638664066596661666766686733673667407008717771877206741575197522755975647569760676077613761676467649765077377759776077627763776577667768776977737775778878557881798879898109811181748179826921606216082161321614216182161921621216222162521626216272162821629216302163121632216362165521674217282173921740217412174321771217762179221793217942179521807218082180921838
Tried problems：5 problems
Virtual Participations：8 contests
| Name | Start time |
|---|---|
| Public NOIP Round #1 (Div. 2, 普及) | 2022-09-16 22:38:13 |
| Public Round #7 | 2022-08-06 13:04:14 |
| Public Round #4 | 2022-07-21 11:27:51 |
| Public Round #5 | 2022-07-07 08:28:02 |
| Public Round #6 | 2022-07-07 08:27:55 |
| Public Easy Round #2 | 2022-05-06 23:01:42 |
| Public Easy Round #1 | 2022-04-23 16:49:42 |
| Public Round #3 | 2022-04-14 17:59:57 |