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ContestId |
Name |
Phase |
Frozen |
Duration (Seconds) |
Relative Time |
Start Time |
|---|---|---|---|---|---|---|
| 2026 | Educational Codeforces Round 171 (Rated for Div. 2) | FINISHED | False | 7200 | 46279523 | Oct. 28, 2024, 2:35 p.m. |
Solved |
Index |
Name |
Type |
Tags |
Community Tag |
Rating |
|---|---|---|---|---|---|---|
| ( 5814 ) | D | Sums of Segments | PROGRAMMING | binary search data structures dp implementation math |
You are given a sequence of integers (a_1, a_2, \dots, a_n). Let (s(l,r)) be the sum of elements from (a_l) to (a_r) (i. e. (s(l,r) = \sum\limits_{i=l}^{r} a_i)). Let's construct another sequence (b) of size (\frac{n(n+1)}{2}) as follows: (b = s(1,1), s(1,2), \dots, s(1,n), s(2,2), s(2,3), \dots, s(2,n), s(3,3), \dots, s(n,n)). For example, if (a = 1, 2, 5, 10), then (b = 1, 3, 8, 18, 2, 7, 17, 5, 15, 10). You are given (q) queries. During the (i)-th query, you are given two integers (l_i) and (r_i), and you have to calculate (\sum \limits_{j=l_i}^{r_i} b_j). The first line contains one integer (n) ((1 \le n \le 3 \cdot 10^5)). The second line contains (n) integers (a_1, a_2, \dots, a_n) ((-10 \le a_i \le 10)). The third line contains one integer (q) ((1 \le q \le 3 \cdot 10^5)). Then (q) lines follow, the (i)-th of them contains two integers (l_i) and (r_i) ((1 \le l_i \le r_i \le \frac{n(n+1)}{2})). Print (q) integers, the (i)-th of which should be equal to (\sum \limits_{j=l_i}^{r_i} b_j). |
| Educational Codeforces Round 171 Editorial |
Submission Id |
Author(s) |
Index |
Submitted |
Verdict |
Language |
Test Set |
Tests Passed |
Time taken (ms) |
Memory Consumed (bytes) |
Tags |
Rating |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 288657783 | forever2023 | D | Oct. 29, 2024, 2:32 a.m. | OK | C++17 (GCC 7-32) | TESTS | 21 | 358 | 10752000 | ||
| 288636407 | BULLMCHOW | D | Oct. 28, 2024, 7:55 p.m. | OK | C++17 (GCC 7-32) | TESTS | 21 | 437 | 12083200 | ||
| 288661929 | fdtywadw | D | Oct. 29, 2024, 3:38 a.m. | OK | C++17 (GCC 7-32) | TESTS | 21 | 452 | 13209600 | ||
| 288836970 | hhu_yjh | D | Oct. 30, 2024, 4:48 a.m. | OK | C++17 (GCC 7-32) | TESTS | 21 | 467 | 72192000 | ||
| 288651831 | CuteJerry | D | Oct. 29, 2024, 12:27 a.m. | OK | C++17 (GCC 7-32) | TESTS | 21 | 468 | 12083200 | ||
| 288823123 | TwindT | D | Oct. 30, 2024, 12:59 a.m. | OK | C++17 (GCC 7-32) | TESTS | 21 | 484 | 5939200 | ||
| 288762668 | Dorilex | D | Oct. 29, 2024, 3:43 p.m. | OK | C++17 (GCC 7-32) | TESTS | 21 | 484 | 7168000 | ||
| 288841669 | sheep__sun | D | Oct. 30, 2024, 5:43 a.m. | OK | C++17 (GCC 7-32) | TESTS | 21 | 484 | 10854400 | ||
| 288670353 | zisheng | D | Oct. 29, 2024, 5:17 a.m. | OK | C++17 (GCC 7-32) | TESTS | 21 | 499 | 4915200 | ||
| 288662163 | gandiva0 | D | Oct. 29, 2024, 3:41 a.m. | OK | C++17 (GCC 7-32) | TESTS | 21 | 499 | 7168000 | ||
| 288767765 | FredBill | D | Oct. 29, 2024, 4:15 p.m. | OK | C++20 (GCC 13-64) | TESTS | 21 | 218 | 10444800 | ||
| 288817591 | joaozao | D | Oct. 29, 2024, 10:34 p.m. | OK | C++20 (GCC 13-64) | TESTS | 21 | 265 | 10752000 | ||
| 288737704 | fanhuaxingyu | D | Oct. 29, 2024, 1:20 p.m. | OK | C++20 (GCC 13-64) | TESTS | 21 | 296 | 9523200 | ||
| 288654936 | BakedBrain | D | Oct. 29, 2024, 1:37 a.m. | OK | C++20 (GCC 13-64) | TESTS | 21 | 311 | 5939200 | ||
| 288712613 | satyajit1206 | D | Oct. 29, 2024, 10:43 a.m. | OK | C++20 (GCC 13-64) | TESTS | 21 | 312 | 5939200 | ||
| 288652599 | maha_retard | D | Oct. 29, 2024, 12:45 a.m. | OK | C++20 (GCC 13-64) | TESTS | 21 | 312 | 5939200 | ||
| 288839397 | hitoriray | D | Oct. 30, 2024, 5:18 a.m. | OK | C++20 (GCC 13-64) | TESTS | 21 | 312 | 8294400 | ||
| 288654869 | RoadToHappiness | D | Oct. 29, 2024, 1:36 a.m. | OK | C++20 (GCC 13-64) | TESTS | 21 | 312 | 8396800 | ||
| 288652546 | fryingduc | D | Oct. 29, 2024, 12:43 a.m. | OK | C++20 (GCC 13-64) | TESTS | 21 | 312 | 9728000 | ||
| 288670172 | susenyang | D | Oct. 29, 2024, 5:15 a.m. | OK | C++20 (GCC 13-64) | TESTS | 21 | 312 | 14438400 | ||
| 288684284 | tiny_fish | D | Oct. 29, 2024, 7:29 a.m. | OK | C++23 (GCC 14-64, msys2) | TESTS | 21 | 296 | 9625600 | ||
| 288659189 | szy10010 | D | Oct. 29, 2024, 2:56 a.m. | OK | C++23 (GCC 14-64, msys2) | TESTS | 21 | 296 | 32153600 | ||
| 288663809 | LeeMinHoon | D | Oct. 29, 2024, 4:03 a.m. | OK | C++23 (GCC 14-64, msys2) | TESTS | 21 | 327 | 3686400 | ||
| 288831479 | mrsuns | D | Oct. 30, 2024, 3:24 a.m. | OK | C++23 (GCC 14-64, msys2) | TESTS | 21 | 327 | 8396800 | ||
| 288716691 | mouhua | D | Oct. 29, 2024, 11:11 a.m. | OK | C++23 (GCC 14-64, msys2) | TESTS | 21 | 327 | 8499200 | ||
| 288643926 | glllll | D | Oct. 28, 2024, 9:28 p.m. | OK | C++23 (GCC 14-64, msys2) | TESTS | 21 | 327 | 9625600 | ||
| 288667091 | lockdown | D | Oct. 29, 2024, 4:45 a.m. | OK | C++23 (GCC 14-64, msys2) | TESTS | 21 | 327 | 10854400 | ||
| 288757211 | nosef | D | Oct. 29, 2024, 3:11 p.m. | OK | C++23 (GCC 14-64, msys2) | TESTS | 21 | 327 | 12083200 | ||
| 288714527 | Ras_Vz | D | Oct. 29, 2024, 10:56 a.m. | OK | C++23 (GCC 14-64, msys2) | TESTS | 21 | 327 | 12083200 | ||
| 288665648 | xyktyjayket | D | Oct. 29, 2024, 4:27 a.m. | OK | C++23 (GCC 14-64, msys2) | TESTS | 21 | 327 | 12083200 | ||
| 288843718 | ArminArlert69 | D | Oct. 30, 2024, 6:06 a.m. | OK | GNU C11 | TESTS | 21 | 1749 | 9728000 | ||
| 288669110 | congege | D | Oct. 29, 2024, 5:05 a.m. | OK | Java 21 | TESTS | 21 | 858 | 20787200 | ||
| 288752850 | Akash_Sardar | D | Oct. 29, 2024, 2:46 p.m. | OK | Java 21 | TESTS | 21 | 999 | 10956800 | ||
| 288712787 | knightFighterr | D | Oct. 29, 2024, 10:44 a.m. | OK | Java 21 | TESTS | 21 | 1030 | 4915200 | ||
| 288726406 | polsage | D | Oct. 29, 2024, 12:13 p.m. | OK | Java 21 | TESTS | 21 | 1280 | 3993600 | ||
| 288699891 | vinayak_20 | D | Oct. 29, 2024, 9:15 a.m. | OK | Java 21 | TESTS | 21 | 1468 | 5529600 | ||
| 288663847 | sagargupta36 | D | Oct. 29, 2024, 4:04 a.m. | OK | Java 21 | TESTS | 21 | 1500 | 3788800 | ||
| 288652417 | xorfftdp | D | Oct. 29, 2024, 12:40 a.m. | OK | Java 21 | TESTS | 21 | 1593 | 43008000 | ||
| 288710765 | ironman263 | D | Oct. 29, 2024, 10:29 a.m. | OK | Java 21 | TESTS | 21 | 2562 | 9932800 | ||
| 288665785 | xyktyjayket | D | Oct. 29, 2024, 4:29 a.m. | OK | Java 21 | TESTS | 21 | 2577 | 7270400 | ||
| 288661952 | LeetCodeforces_Null | D | Oct. 29, 2024, 3:38 a.m. | OK | Java 21 | TESTS | 21 | 3140 | 203980800 | ||
| 288692193 | InfinityX | D | Oct. 29, 2024, 8:23 a.m. | OK | Java 8 | TESTS | 21 | 624 | 14438400 | ||
| 288750748 | aditya888 | D | Oct. 29, 2024, 2:33 p.m. | OK | Java 8 | TESTS | 21 | 780 | 14336000 | ||
| 288652827 | Yousef_Badr | D | Oct. 29, 2024, 12:50 a.m. | OK | Java 8 | TESTS | 21 | 1030 | 12595200 | ||
| 288652736 | Yousef_Badr | D | Oct. 29, 2024, 12:49 a.m. | OK | Java 8 | TESTS | 21 | 1046 | 12492800 | ||
| 288750116 | aditya888 | D | Oct. 29, 2024, 2:30 p.m. | OK | Java 8 | TESTS | 21 | 1327 | 14438400 | ||
| 288710555 | achyut88 | D | Oct. 29, 2024, 10:28 a.m. | OK | Java 8 | TESTS | 21 | 1374 | 7577600 | ||
| 288730766 | tirthgohil1410 | D | Oct. 29, 2024, 12:39 p.m. | OK | Java 8 | TESTS | 21 | 1859 | 18227200 | ||
| 288669010 | OpKos | D | Oct. 29, 2024, 5:04 a.m. | OK | PyPy 3 | TESTS | 21 | 2687 | 62464000 | ||
| 288697725 | LightHouse1 | D | Oct. 29, 2024, 9 a.m. | OK | PyPy 3-64 | TESTS | 21 | 655 | 110592000 | ||
| 288773745 | gardengnome | D | Oct. 29, 2024, 4:51 p.m. | OK | PyPy 3-64 | TESTS | 21 | 734 | 46592000 | ||
| 288726724 | signorino | D | Oct. 29, 2024, 12:15 p.m. | OK | PyPy 3-64 | TESTS | 21 | 749 | 39526400 | ||
| 288694322 | ketuOP | D | Oct. 29, 2024, 8:38 a.m. | OK | PyPy 3-64 | TESTS | 21 | 749 | 45875200 | ||
| 288715606 | denilb | D | Oct. 29, 2024, 11:04 a.m. | OK | PyPy 3-64 | TESTS | 21 | 765 | 42188800 | ||
| 288720301 | bkdn24.jjhlmkptt | D | Oct. 29, 2024, 11:34 a.m. | OK | PyPy 3-64 | TESTS | 21 | 780 | 48537600 | ||
| 288661048 | RobinFromTheHood | D | Oct. 29, 2024, 3:24 a.m. | OK | PyPy 3-64 | TESTS | 21 | 780 | 55398400 | ||
| 288662450 | hxu10 | D | Oct. 29, 2024, 3:44 a.m. | OK | PyPy 3-64 | TESTS | 21 | 781 | 55705600 | ||
| 288747457 | pythonist_viking | D | Oct. 29, 2024, 2:14 p.m. | OK | PyPy 3-64 | TESTS | 21 | 812 | 39014400 | ||
| 288639471 | Om_Singh_ | D | Oct. 28, 2024, 8:30 p.m. | OK | PyPy 3-64 | TESTS | 21 | 812 | 44032000 | ||
| 288820217 | superarnav.io | D | Oct. 29, 2024, 11:42 p.m. | OK | Python 3 | TESTS | 21 | 3937 | 73011200 | ||
| 288672487 | gche | D | Oct. 29, 2024, 5:37 a.m. | OK | Rust 2021 | TESTS | 21 | 311 | 11980800 | ||
| 288739611 | Allergy527 | D | Oct. 29, 2024, 1:31 p.m. | OK | Rust 2021 | TESTS | 21 | 968 | 17715200 |
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