Solutions are presented as using the least memory and the fastest execution time. It also takes the top 10 most recent solutions from each language. If you want to limit to a specific index, click the "Solved" button and go to that problem.
ContestId |
Name |
Phase |
Frozen |
Duration (Seconds) |
Relative Time |
Start Time |
---|---|---|---|---|---|---|
1764 | Codeforces Global Round 24 | FINISHED | False | 9000 | 62351699 | Nov. 26, 2022, 2:05 p.m. |
Solved$ |
Index |
Name |
Type |
Tags |
Community Tag |
Rating |
---|---|---|---|---|---|---|
( 9471 ) | C | Doremy's City Construction | PROGRAMMING | constructive algorithms greedy math |
B"Doremy's new city is under construction! The city can be regarded as a simple undirected graph with n vertices. The i -th vertex has altitude a_i . Now Doremy is deciding which pairs of vertices should be connected with edges. Due to economic reasons, there should be no self-loops or multiple edges in the graph. Due to safety reasons, there should not be pairwise distinct vertices u , v , and w such that a_u <= q a_v <= q a_w and the edges (u,v) and (v,w) exist. Under these constraints, Doremy would like to know the maximum possible number of edges in the graph. Can you help her? Note that the constructed graph is allowed to be disconnected. The input consists of multiple test cases. The first line contains a single integer t ( 1 <= t <= 10^4 ) -- the number of test cases. The description of the test cases follows. The first line of each test case contains a single integer n ( 2 <= n <= 2 cdot 10^5 ) -- the number of vertices. The second line of each test case contains n integers a_1, a_2, ... , a_n ( 1 <= a_i <= 10^6 ) -- the altitudes of each vertex. It is guaranteed that the sum of n over all test cases does not exceed 2 cdot 10^5 . For each test case, output the maximum possible number of edges in the graph. In the first test case, there can only be at most 3 edges in the graph. A possible construction is to connect (1,3) , (2,3) , (3,4) . In the picture below the red number above node i is a_i . The following list shows all such u , v , w that the edges (u,v) and (v,w) exist. Another possible construction is to connect (1,4) , (2,4) , (3,4) . An unacceptable construction is to connect (1,3) , (2,3) , (2,4) , (3,4) . Because when u=4 , v=2 , w=3 , a_u <= a_v <= a_w holds, and the respective edges exist. "... |
Codeforces Global Round 24 Editorial |
Submission Id |
Author(s) |
Index |
Submitted |
Verdict |
Language |
Test Set |
Tests Passed |
Time taken (ms) |
Memory Consumed (bytes) |
Tags |
Rating |
---|---|---|---|---|---|---|---|---|---|---|---|
182684986 | ssvb | C | Nov. 26, 2022, 3:28 p.m. | OK | D | TESTS | 14 | 93 | 13619200 | ||
182684110 | ruban | C | Nov. 26, 2022, 3:24 p.m. | OK | FPC | TESTS | 14 | 187 | 154316800 | ||
182688296 | AngryLeaf | C | Nov. 26, 2022, 3:42 p.m. | OK | GNU C11 | TESTS | 14 | 78 | 8806400 | ||
182697215 | 1435730 | C | Nov. 26, 2022, 4:24 p.m. | OK | GNU C11 | TESTS | 14 | 108 | 819200 | ||
182688182 | Febleaf | C | Nov. 26, 2022, 3:41 p.m. | OK | GNU C++14 | TESTS | 14 | 46 | 819200 | ||
182686333 | xiaozuo_ | C | Nov. 26, 2022, 3:33 p.m. | OK | GNU C++14 | TESTS | 14 | 46 | 7065600 | ||
182691294 | YoungJayz | C | Nov. 26, 2022, 3:56 p.m. | OK | GNU C++14 | TESTS | 14 | 61 | 819200 | ||
182689894 | computerbox | C | Nov. 26, 2022, 3:49 p.m. | OK | GNU C++14 | TESTS | 14 | 61 | 3174400 | ||
182678416 | blade_dance | C | Nov. 26, 2022, 3:04 p.m. | OK | GNU C++14 | TESTS | 14 | 61 | 3993600 | ||
182678647 | ZhangOscar | C | Nov. 26, 2022, 3:04 p.m. | OK | GNU C++14 | TESTS | 14 | 61 | 3993600 | ||
182690007 | DuongQua2007 | C | Nov. 26, 2022, 3:50 p.m. | OK | GNU C++14 | TESTS | 14 | 61 | 11980800 | ||
182738453 | AIR_COLOR5 | C | Nov. 27, 2022, 4:20 a.m. | OK | GNU C++14 | TESTS | 14 | 62 | 819200 | ||
182742970 | daniel14311531 | C | Nov. 27, 2022, 5:48 a.m. | OK | GNU C++14 | TESTS | 14 | 62 | 819200 | ||
182743551 | Mikey1434 | C | Nov. 27, 2022, 5:56 a.m. | OK | GNU C++14 | TESTS | 14 | 62 | 819200 | ||
182691452 | TamimEhsan | C | Nov. 26, 2022, 3:56 p.m. | OK | GNU C++17 | TESTS | 14 | 46 | 819200 | ||
182690331 | andrei_p | C | Nov. 26, 2022, 3:51 p.m. | OK | GNU C++17 | TESTS | 14 | 46 | 2457600 | ||
182680640 | whitesword | C | Nov. 26, 2022, 3:11 p.m. | OK | GNU C++17 | TESTS | 14 | 46 | 7987200 | ||
182685167 | limabeans | C | Nov. 26, 2022, 3:29 p.m. | OK | GNU C++17 | TESTS | 14 | 61 | 819200 | ||
182681531 | Zawos | C | Nov. 26, 2022, 3:15 p.m. | OK | GNU C++17 | TESTS | 14 | 61 | 819200 | ||
182696507 | Hamine | C | Nov. 26, 2022, 4:21 p.m. | OK | GNU C++17 | TESTS | 14 | 61 | 819200 | ||
182730883 | hasname | C | Nov. 27, 2022, 12:37 a.m. | OK | GNU C++17 | TESTS | 14 | 61 | 819200 | ||
182717687 | BeruboIV | C | Nov. 26, 2022, 7:47 p.m. | OK | GNU C++17 | TESTS | 14 | 61 | 1638400 | ||
182730982 | hy-phantom | C | Nov. 27, 2022, 12:41 a.m. | OK | GNU C++17 | TESTS | 14 | 61 | 2457600 | ||
182696917 | 2003_06 | C | Nov. 26, 2022, 4:23 p.m. | OK | GNU C++17 | TESTS | 14 | 61 | 3174400 | ||
182715921 | AkramElOmrani | C | Nov. 26, 2022, 7:20 p.m. | OK | GNU C++17 (64) | TESTS | 14 | 31 | 819200 | ||
182696792 | whhsteven | C | Nov. 26, 2022, 4:22 p.m. | OK | GNU C++17 (64) | TESTS | 14 | 31 | 819200 | ||
182693738 | Whereismybrain | C | Nov. 26, 2022, 4:08 p.m. | OK | GNU C++17 (64) | TESTS | 14 | 31 | 2457600 | ||
182679810 | burak_ozzkan | C | Nov. 26, 2022, 3:08 p.m. | OK | GNU C++17 (64) | TESTS | 14 | 31 | 5836800 | ||
182739386 | BuptNorthRemembers | C | Nov. 27, 2022, 4:42 a.m. | OK | GNU C++17 (64) | TESTS | 14 | 46 | 819200 | ||
182737302 | ReSakura | C | Nov. 27, 2022, 3:53 a.m. | OK | GNU C++17 (64) | TESTS | 14 | 46 | 819200 | ||
182733782 | pursuit_of_happiness | C | Nov. 27, 2022, 2:14 a.m. | OK | GNU C++17 (64) | TESTS | 14 | 46 | 819200 | ||
182733683 | pursuit_of_happiness | C | Nov. 27, 2022, 2:12 a.m. | OK | GNU C++17 (64) | TESTS | 14 | 46 | 819200 | ||
182733396 | PCC | C | Nov. 27, 2022, 2:03 a.m. | OK | GNU C++17 (64) | TESTS | 14 | 46 | 819200 | ||
182733333 | pursuit_of_happiness | C | Nov. 27, 2022, 2:02 a.m. | OK | GNU C++17 (64) | TESTS | 14 | 46 | 819200 | ||
182732333 | pika_qiu | C | Nov. 27, 2022, 1:26 a.m. | OK | GNU C++20 (64) | TESTS | 14 | 31 | 819200 | ||
182723223 | Khaled_Awad66 | C | Nov. 26, 2022, 9:19 p.m. | OK | GNU C++20 (64) | TESTS | 14 | 31 | 819200 | ||
182711764 | Ivan_len | C | Nov. 26, 2022, 6:29 p.m. | OK | GNU C++20 (64) | TESTS | 14 | 31 | 819200 | ||
182702100 | SSerxhs | C | Nov. 26, 2022, 5:02 p.m. | OK | GNU C++20 (64) | TESTS | 14 | 31 | 819200 | ||
182696909 | enzo200325 | C | Nov. 26, 2022, 4:23 p.m. | OK | GNU C++20 (64) | TESTS | 14 | 31 | 819200 | ||
182696449 | Yelarys | C | Nov. 26, 2022, 4:21 p.m. | OK | GNU C++20 (64) | TESTS | 14 | 31 | 819200 | ||
182686571 | Th_K | C | Nov. 26, 2022, 3:35 p.m. | OK | GNU C++20 (64) | TESTS | 14 | 31 | 819200 | ||
182685886 | Asif732 | C | Nov. 26, 2022, 3:32 p.m. | OK | GNU C++20 (64) | TESTS | 14 | 31 | 819200 | ||
182732983 | platelet | C | Nov. 27, 2022, 1:50 a.m. | OK | GNU C++20 (64) | TESTS | 14 | 31 | 819200 | ||
182738392 | TangM | C | Nov. 27, 2022, 4:19 a.m. | OK | GNU C++20 (64) | TESTS | 14 | 31 | 819200 | ||
182688897 | shiro | C | Nov. 26, 2022, 3:45 p.m. | OK | Go | TESTS | 14 | 109 | 3481600 | ||
182740936 | sf14t | C | Nov. 27, 2022, 5:13 a.m. | OK | Java 11 | TESTS | 14 | 233 | 0 | ||
182707688 | bajpaisharanya | C | Nov. 26, 2022, 5:50 p.m. | OK | Java 11 | TESTS | 14 | 249 | 0 | ||
182687362 | mareshkau | C | Nov. 26, 2022, 3:38 p.m. | OK | Java 11 | TESTS | 14 | 249 | 0 | ||
182683435 | Abhishek_patel_ | C | Nov. 26, 2022, 3:21 p.m. | OK | Java 11 | TESTS | 14 | 249 | 0 | ||
182682585 | procrastinate7 | C | Nov. 26, 2022, 3:18 p.m. | OK | Java 11 | TESTS | 14 | 264 | 0 | ||
182698864 | manvendramehrotra | C | Nov. 26, 2022, 4:31 p.m. | OK | Java 11 | TESTS | 14 | 264 | 4915200 | ||
182716335 | doomhammer. | C | Nov. 26, 2022, 7:26 p.m. | OK | Java 11 | TESTS | 14 | 265 | 0 | ||
182687702 | doomhammer. | C | Nov. 26, 2022, 3:39 p.m. | OK | Java 11 | TESTS | 14 | 265 | 6144000 | ||
182729484 | mcrash12 | C | Nov. 26, 2022, 11:44 p.m. | OK | Java 11 | TESTS | 14 | 280 | 0 | ||
182729825 | mcrash12 | C | Nov. 26, 2022, 11:55 p.m. | OK | Java 11 | TESTS | 14 | 280 | 0 | ||
182703881 | Utsav82 | C | Nov. 26, 2022, 5:15 p.m. | OK | Java 17 | TESTS | 14 | 202 | 716800 | ||
182685847 | MrOtter | C | Nov. 26, 2022, 3:31 p.m. | OK | Java 17 | TESTS | 14 | 233 | 102400 | ||
182716048 | yashbhardwaj24 | C | Nov. 26, 2022, 7:22 p.m. | OK | Java 17 | TESTS | 14 | 249 | 43417600 | ||
182731224 | kkz666 | C | Nov. 27, 2022, 12:50 a.m. | OK | Java 17 | TESTS | 14 | 264 | 819200 | ||
182695843 | irachit0702 | C | Nov. 26, 2022, 4:18 p.m. | OK | Java 17 | TESTS | 14 | 296 | 8704000 | ||
182721077 | ghost24601 | C | Nov. 26, 2022, 8:41 p.m. | OK | Java 17 | TESTS | 14 | 311 | 14540800 | ||
182678867 | youtsuha2.0 | C | Nov. 26, 2022, 3:05 p.m. | OK | Java 17 | TESTS | 14 | 326 | 3993600 | ||
182681169 | IceWolf898 | C | Nov. 26, 2022, 3:13 p.m. | OK | Java 17 | TESTS | 14 | 514 | 8601600 | ||
182704470 | Abhinavrajhans | C | Nov. 26, 2022, 5:20 p.m. | OK | Java 17 | TESTS | 14 | 530 | 5017600 | ||
182712625 | simoneponginibbio | C | Nov. 26, 2022, 6:39 p.m. | OK | Java 17 | TESTS | 14 | 545 | 1024000 | ||
182705545 | RahulAhuja2901 | C | Nov. 26, 2022, 5:29 p.m. | OK | Java 8 | TESTS | 14 | 108 | 0 | ||
182686801 | Bahaalization | C | Nov. 26, 2022, 3:35 p.m. | OK | Java 8 | TESTS | 14 | 139 | 2560000 | ||
182697647 | kalsitushar | C | Nov. 26, 2022, 4:26 p.m. | OK | Java 8 | TESTS | 14 | 140 | 2252800 | ||
182683069 | UniversalAdmin | C | Nov. 26, 2022, 3:20 p.m. | OK | Java 8 | TESTS | 14 | 187 | 2867200 | ||
182713080 | mass_2701 | C | Nov. 26, 2022, 6:45 p.m. | OK | Java 8 | TESTS | 14 | 202 | 2560000 | ||
182735899 | -crazy_coder- | C | Nov. 27, 2022, 3:16 a.m. | OK | Java 8 | TESTS | 14 | 218 | 12800000 | ||
182702069 | amit_roy | C | Nov. 26, 2022, 5:02 p.m. | OK | Java 8 | TESTS | 14 | 249 | 14950400 | ||
182714255 | ganesh_6 | C | Nov. 26, 2022, 6:58 p.m. | OK | Java 8 | TESTS | 14 | 280 | 12902400 | ||
182705163 | Eslam_Ahmed | C | Nov. 26, 2022, 5:26 p.m. | OK | Java 8 | TESTS | 14 | 311 | 13312000 | ||
182714478 | Mohamed_A7med | C | Nov. 26, 2022, 7:01 p.m. | OK | Java 8 | TESTS | 14 | 342 | 5427200 | ||
182681002 | habibulka | C | Nov. 26, 2022, 3:13 p.m. | OK | Kotlin 1.7 | TESTS | 14 | 857 | 71884800 | ||
182690165 | Autlomu | C | Nov. 26, 2022, 3:50 p.m. | OK | MS C++ 2017 | TESTS | 14 | 62 | 1638400 | ||
182683713 | the_killah | C | Nov. 26, 2022, 3:23 p.m. | OK | MS C++ 2017 | TESTS | 14 | 109 | 1638400 | ||
182694504 | SmilingBraniac | C | Nov. 26, 2022, 4:11 p.m. | OK | MS C++ 2017 | TESTS | 14 | 156 | 819200 | ||
182743225 | tjdvyzl12345 | C | Nov. 27, 2022, 5:52 a.m. | OK | MS C++ 2017 | TESTS | 14 | 187 | 3276800 | ||
182702317 | McLetchik | C | Nov. 26, 2022, 5:03 p.m. | OK | MS C++ 2017 | TESTS | 14 | 202 | 1638400 | ||
182693088 | gavvah | C | Nov. 26, 2022, 4:04 p.m. | OK | MS C++ 2017 | TESTS | 14 | 234 | 10342400 | ||
182692392 | staryarych | C | Nov. 26, 2022, 4:01 p.m. | OK | MS C++ 2017 | TESTS | 14 | 295 | 8089600 | ||
182682549 | anishde85 | C | Nov. 26, 2022, 3:18 p.m. | OK | PyPy 3 | TESTS | 14 | 358 | 20582400 | ||
182738450 | bpdolson | C | Nov. 27, 2022, 4:20 a.m. | OK | PyPy 3 | TESTS | 14 | 483 | 14233600 | ||
182725637 | tan_delhi | C | Nov. 26, 2022, 10:05 p.m. | OK | PyPy 3 | TESTS | 14 | 498 | 26112000 | ||
182696061 | whitehost | C | Nov. 26, 2022, 4:19 p.m. | OK | PyPy 3 | TESTS | 14 | 545 | 13926400 | ||
182687335 | nicksm | C | Nov. 26, 2022, 3:38 p.m. | OK | PyPy 3 | TESTS | 14 | 561 | 30720000 | ||
182702087 | DrMrogon | C | Nov. 26, 2022, 5:02 p.m. | OK | PyPy 3-64 | TESTS | 14 | 139 | 28262400 | ||
182695125 | HarshitKumarGupta | C | Nov. 26, 2022, 4:14 p.m. | OK | PyPy 3-64 | TESTS | 14 | 140 | 22118400 | ||
182693937 | mrdhnv | C | Nov. 26, 2022, 4:09 p.m. | OK | PyPy 3-64 | TESTS | 14 | 155 | 19046400 | ||
182728653 | biglunchdude | C | Nov. 26, 2022, 11:18 p.m. | OK | PyPy 3-64 | TESTS | 14 | 155 | 22528000 | ||
182725978 | SoleProprietor | C | Nov. 26, 2022, 10:12 p.m. | OK | PyPy 3-64 | TESTS | 14 | 170 | 24985600 | ||
182689436 | Yinch | C | Nov. 26, 2022, 3:47 p.m. | OK | PyPy 3-64 | TESTS | 14 | 170 | 27238400 | ||
182720113 | _tb | C | Nov. 26, 2022, 8:26 p.m. | OK | PyPy 3-64 | TESTS | 14 | 171 | 17715200 | ||
182728185 | biglunchdude | C | Nov. 26, 2022, 11:04 p.m. | OK | PyPy 3-64 | TESTS | 14 | 171 | 22528000 | ||
182706934 | mintplz | C | Nov. 26, 2022, 5:43 p.m. | OK | PyPy 3-64 | TESTS | 14 | 171 | 23449600 | ||
182686236 | Kalyano | C | Nov. 26, 2022, 3:33 p.m. | OK | PyPy 3-64 | TESTS | 14 | 171 | 24678400 | ||
182694151 | xph_4n | C | Nov. 26, 2022, 4:10 p.m. | OK | Python 2 | TESTS | 14 | 405 | 13414400 | ||
182681163 | NS3081992 | C | Nov. 26, 2022, 3:13 p.m. | OK | Python 3 | TESTS | 14 | 217 | 14131200 | ||
182694115 | Namanrockzzz | C | Nov. 26, 2022, 4:09 p.m. | OK | Python 3 | TESTS | 14 | 233 | 13516800 | ||
182683873 | sandesh32 | C | Nov. 26, 2022, 3:23 p.m. | OK | Python 3 | TESTS | 14 | 233 | 13926400 | ||
182680315 | widmenic | C | Nov. 26, 2022, 3:10 p.m. | OK | Python 3 | TESTS | 14 | 248 | 13926400 | ||
182728409 | Sp00kiel | C | Nov. 26, 2022, 11:11 p.m. | OK | Python 3 | TESTS | 14 | 249 | 15360000 | ||
182693638 | NenadDapic | C | Nov. 26, 2022, 4:07 p.m. | OK | Python 3 | TESTS | 14 | 264 | 13926400 | ||
182694815 | Divyanshu_81 | C | Nov. 26, 2022, 4:13 p.m. | OK | Python 3 | TESTS | 14 | 264 | 18739200 | ||
182697738 | Asuma_2014 | C | Nov. 26, 2022, 4:27 p.m. | OK | Python 3 | TESTS | 14 | 280 | 10752000 | ||
182686789 | killcrow | C | Nov. 26, 2022, 3:35 p.m. | OK | Python 3 | TESTS | 14 | 280 | 13209600 | ||
182680863 | taksqth | C | Nov. 26, 2022, 3:12 p.m. | OK | Python 3 | TESTS | 14 | 280 | 13926400 |
Back to search problems