QOJ.ac
QOJ
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AFewSuns
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2447
Contribution
7
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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：270 problems
5559671071411431441492172442492734154644954995526016026036186197857867877888318338368378928958988999059069569599619909959969979989991002100310041005116711891193119712121243124912501252128112831359140714321437165217791811183818441845185618781907196320212071210321582178221322142267228623482351240224212424242524262486254825552560260126032646270927172723283028342835300230293098330735763816399439984000420742174218423244064427451345494625463046484675475848024808483048324896492849965018501950205024503450355036509050955175523652565280533854195439544655045519552355305568565756595740574958096267629862996308630963206325633163666380640464136452650265086509651165376540660866266627662866296630663566386640665966616667666867336736674070087177718772067415751975227559756475697606760776137616764676497650773777597760776277637765776677677768776977737775778878557881798879898109811181748179826921403215292160621608216132161421618216192162121622216252162621627216282162921630216312163221636216482165521674217282173921740217412174321771217762179221793217942179521807218082180921838
Tried problems：5 problems
Authored Problems：0 problem
NoneVirtual 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 |