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The 2nd Universal Cup Finals is coming! Check out our event page, schedule, and competition rules!

用戶檔案

AFewSuns

Rating

2447

Contribution

7

用戶組

Default

格言

$\displaystyle\sum_{n \geq 0}{(x+y)^n\frac{u^n}{n!}}=\sum_{k \geq 0}\frac{x}{x-kz}(x-kz)^k\frac{u^k}{k!}\sum_{l \geq 0}\frac{(y+kz)^l}{l!}u^l$

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Rating 變化

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已解決的問題：共 270 道題

55 59 67 107 141 143 144 149 217 244 249 273 415 464 495 499 552 601 602 603 618 619 785 786 787 788 831 833 836 837 892 895 898 899 905 906 956 959 961 990 995 996 997 998 999 1002 1003 1004 1005 1167 1189 1193 1197 1212 1243 1249 1250 1252 1281 1283 1359 1407 1432 1437 1652 1779 1811 1838 1844 1845 1856 1878 1907 1963 2021 2071 2103 2158 2178 2213 2214 2267 2286 2348 2351 2402 2421 2424 2425 2426 2486 2548 2555 2560 2601 2603 2646 2709 2717 2723 2830 2834 2835 3002 3029 3098 3307 3576 3816 3994 3998 4000 4207 4217 4218 4232 4406 4427 4513 4549 4625 4630 4648 4675 4758 4802 4808 4830 4832 4896 4928 4996 5018 5019 5020 5024 5034 5035 5036 5090 5095 5175 5236 5256 5280 5338 5419 5439 5446 5504 5519 5523 5530 5568 5657 5659 5740 5749 5809 6267 6298 6299 6308 6309 6320 6325 6331 6366 6380 6404 6413 6452 6502 6508 6509 6511 6537 6540 6608 6626 6627 6628 6629 6630 6635 6638 6640 6659 6661 6667 6668 6733 6736 6740 7008 7177 7187 7206 7415 7519 7522 7559 7564 7569 7606 7607 7613 7616 7646 7649 7650 7737 7759 7760 7762 7763 7765 7766 7767 7768 7769 7773 7775 7788 7855 7881 7988 7989 8109 8111 8174 8179 8269 21403 21529 21606 21608 21613 21614 21618 21619 21621 21622 21625 21626 21627 21628 21629 21630 21631 21632 21636 21648 21655 21674 21728 21739 21740 21741 21743 21771 21776 21792 21793 21794 21795 21807 21808 21809 21838

Tried problems：共 5 道題

620 1877 4411 5550 7647

Authored Problems：共 0 道題

無

Virtual Participations：共 8 场比赛

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