Codeforces Round 810 (Div. 2)

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ContestId
Name
Phase
Frozen
Duration (Seconds)
Relative Time
Start Time
1711 Codeforces Round 810 (Div. 2) FINISHED False 7200 78593063 July 24, 2022, 2:35 p.m.

Problems

Solved$
Index
Name
Type
Tags
Community Tag
Rating
( 13569 ) B Party PROGRAMMING brute force graphs

B"A club plans to hold a party and will invite some of its n members. The n members are identified by the numbers 1, 2, ... , n . If member i is not invited, the party will gain an unhappiness value of a_i . There are m pairs of friends among the n members. As per tradition, if both people from a friend pair are invited, they will share a cake at the party. The total number of cakes eaten will be equal to the number of pairs of friends such that both members have been invited. However, the club's oven can only cook two cakes at a time. So, the club demands that the total number of cakes eaten is an even number. What is the minimum possible total unhappiness value of the party, respecting the constraint that the total number of cakes eaten is even? Each test contains multiple test cases. The first line contains the number of test cases t ( 1 <= q t <= q 10^4 ). The description of the test cases follows. The first line of each test case contains two integers n and m ( 1 <= q n <= q 10^5 , 0 <= q m <= q min(10^5, frac{n(n-1)}{2}) ) -- the number of club members and pairs of friends. The second line of each test case contains n integers a_1,a_2, ... ,a_n ( 0 <= q a_i <= q 10^4 ) -- the unhappiness value array. Each of the next m lines contains two integers x and y ( 1 <= q x,y <= q n , x neq y ) indicating that x and y are friends. Each unordered pair (x,y) appears at most once in each test case. It is guaranteed that both the sum of n and the sum of m over all test cases do not exceed 10^5 . For each test case, print a line containing a single integer xe2 x80 x93 the minimum possible unhappiness value of a valid party. In the first test case, all members can be invited. So the unhappiness value is 0 . In the second test case, the following options are possible: In the third test case, inviting members 3,4,5$"...

Tutorials

Codeforces Round #810 Editorial

Submissions

Submission Id
Author(s)
Index
Submitted
Verdict
Language
Test Set
Tests Passed
Time taken (ms)
Memory Consumed (bytes)
Tags
Rating
165572848 LostTemple B July 24, 2022, 3:51 p.m. OK C# 8 TESTS 11 140 14540800
165597979 TheILICH B July 24, 2022, 6:48 p.m. OK C# 8 TESTS 11 155 15974400
165576962 reosfire B July 24, 2022, 4:04 p.m. OK C# 8 TESTS 11 436 25395200
165591844 LeonGymretzka B July 24, 2022, 5:47 p.m. OK GNU C11 TESTS 11 78 2252800
165621678 tokitsukaze B July 25, 2022, 2:44 a.m. OK GNU C++14 TESTS 11 31 3686400
165579455 xiaxiakeji B July 24, 2022, 4:11 p.m. OK GNU C++14 TESTS 11 31 5529600
165616717 xiaomeiman B July 25, 2022, 1:20 a.m. OK GNU C++14 TESTS 11 62 819200
165602316 Triose_Cyl B July 24, 2022, 7:48 p.m. OK GNU C++14 TESTS 11 62 1536000
165572749 HakuroKawashiro B July 24, 2022, 3:50 p.m. OK GNU C++14 TESTS 11 62 1536000
165630751 krish_iiitp B July 25, 2022, 5:22 a.m. OK GNU C++14 TESTS 11 62 1536000
165613252 strange757 B July 24, 2022, 11:55 p.m. OK GNU C++14 TESTS 11 62 1638400
165597834 ogix2 B July 24, 2022, 6:46 p.m. OK GNU C++14 TESTS 11 62 1638400
165577339 Mindeveloped B July 24, 2022, 4:05 p.m. OK GNU C++14 TESTS 11 62 1638400
165613742 rechinist B July 25, 2022, 12:08 a.m. OK GNU C++14 TESTS 11 62 1638400
165595595 SajibKC_19 B July 24, 2022, 6:19 p.m. OK GNU C++17 TESTS 11 61 6348800
165615613 Gakki_Luke B July 25, 2022, 12:56 a.m. OK GNU C++17 TESTS 11 62 1536000
165615663 Gakki_Luke B July 25, 2022, 12:58 a.m. OK GNU C++17 TESTS 11 62 1536000
165606715 hututu-7 B July 24, 2022, 9:02 p.m. OK GNU C++17 TESTS 11 62 1638400
165626251 Pikku B July 25, 2022, 3:58 a.m. OK GNU C++17 TESTS 11 62 1638400
165573408 AbeerB B July 24, 2022, 3:53 p.m. OK GNU C++17 TESTS 11 62 2457600
165610424 AlexanderL B July 24, 2022, 10:28 p.m. OK GNU C++17 TESTS 11 62 2969600
165594954 zahidhasanmozumder B July 24, 2022, 6:13 p.m. OK GNU C++17 TESTS 11 62 2969600
165627231 ayushraghuwanshi22 B July 25, 2022, 4:16 a.m. OK GNU C++17 TESTS 11 62 2969600
165620158 ZWF_102103135 B July 25, 2022, 2:20 a.m. OK GNU C++17 TESTS 11 62 3276800
165623378 YangHan B July 25, 2022, 3:10 a.m. OK GNU C++17 (64) TESTS 11 46 1228800
165624484 Muly B July 25, 2022, 3:29 a.m. OK GNU C++17 (64) TESTS 11 46 1228800
165581841 s7win99 B July 24, 2022, 4:20 p.m. OK GNU C++17 (64) TESTS 11 46 1638400
165620321 EE97 B July 25, 2022, 2:23 a.m. OK GNU C++17 (64) TESTS 11 46 1638400
165616850 jk1024 B July 25, 2022, 1:22 a.m. OK GNU C++17 (64) TESTS 11 46 1638400
165616180 RetsaZC19 B July 25, 2022, 1:08 a.m. OK GNU C++17 (64) TESTS 11 46 1638400
165613199 enslaved B July 24, 2022, 11:53 p.m. OK GNU C++17 (64) TESTS 11 46 1638400
165598678 ggghg B July 24, 2022, 6:57 p.m. OK GNU C++17 (64) TESTS 11 46 1843200
165592284 RF_Faisal B July 24, 2022, 5:50 p.m. OK GNU C++17 (64) TESTS 11 46 2355200
165571227 van_hoang B July 24, 2022, 3:46 p.m. OK GNU C++17 (64) TESTS 11 46 2457600
165617651 Sorry_Hanasaki B July 25, 2022, 1:36 a.m. OK GNU C++20 (64) TESTS 11 46 819200
165601892 VIP_IITBHU B July 24, 2022, 7:41 p.m. OK GNU C++20 (64) TESTS 11 46 819200
165600576 pseong B July 24, 2022, 7:23 p.m. OK GNU C++20 (64) TESTS 11 46 819200
165578143 gkpsahil032 B July 24, 2022, 4:07 p.m. OK GNU C++20 (64) TESTS 11 46 819200
165597957 jiangly B July 24, 2022, 6:48 p.m. OK GNU C++20 (64) TESTS 11 46 819200
165631231 ddlGod B July 25, 2022, 5:30 a.m. OK GNU C++20 (64) TESTS 11 46 819200
165620521 ducanhphan07062006 B July 25, 2022, 2:26 a.m. OK GNU C++20 (64) TESTS 11 46 819200
165631624 LuluOwO B July 25, 2022, 5:36 a.m. OK GNU C++20 (64) TESTS 11 46 1638400
165631583 LuluOwO B July 25, 2022, 5:35 a.m. OK GNU C++20 (64) TESTS 11 46 1638400
165631851 vqtien B July 25, 2022, 5:40 a.m. OK GNU C++20 (64) TESTS 11 46 1638400
165591635 koqo B July 24, 2022, 5:46 p.m. OK Go TESTS 11 171 5427200
165597007 NoInternetName B July 24, 2022, 6:35 p.m. OK Go TESTS 11 171 5939200
165577551 018429 B July 24, 2022, 4:06 p.m. OK Go TESTS 11 218 7065600
165614462 segubeam B July 25, 2022, 12:27 a.m. OK Java 11 TESTS 11 233 0
165604586 tushar19280 B July 24, 2022, 8:25 p.m. OK Java 11 TESTS 11 233 0
165605214 satyaa_78 B July 24, 2022, 8:36 p.m. OK Java 11 TESTS 11 233 5324800
165633120 __Serendipity B July 25, 2022, 5:59 a.m. OK Java 11 TESTS 11 234 0
165631167 swift51385 B July 25, 2022, 5:29 a.m. OK Java 11 TESTS 11 234 0
165595845 singhshivsm20001 B July 24, 2022, 6:22 p.m. OK Java 11 TESTS 11 264 0
165601008 pras7946 B July 24, 2022, 7:29 p.m. OK Java 11 TESTS 11 265 0
165580251 Hreshi B July 24, 2022, 4:14 p.m. OK Java 11 TESTS 11 265 0
165577120 vermadv2000 B July 24, 2022, 4:04 p.m. OK Java 11 TESTS 11 265 0
165621755 Wuya B July 25, 2022, 2:45 a.m. OK Java 11 TESTS 11 265 1536000
165574701 Eslam_Ahmed B July 24, 2022, 3:57 p.m. OK Java 17 TESTS 11 405 17305600
165611655 kkz666 B July 24, 2022, 11:04 p.m. OK Java 17 TESTS 11 468 17510400
165631950 Etheric_Wanderer B July 25, 2022, 5:41 a.m. OK Java 17 TESTS 11 716 63692800
165600420 prituladima B July 24, 2022, 7:21 p.m. OK Java 17 TESTS 11 966 45875200
165605361 peiyeliu B July 24, 2022, 8:38 p.m. OK Java 8 TESTS 11 155 0
165576932 ashutosh_patel B July 24, 2022, 4:04 p.m. OK Java 8 TESTS 11 155 0
165575007 arutsudar B July 24, 2022, 3:58 p.m. OK Java 8 TESTS 11 171 0
165573720 underRate B July 24, 2022, 3:54 p.m. OK Java 8 TESTS 11 171 0
165586085 Sussykin B July 24, 2022, 4:32 p.m. OK Java 8 TESTS 11 202 0
165591890 gssakash B July 24, 2022, 5:47 p.m. OK Java 8 TESTS 11 265 11264000
165577224 Mohamed308 B July 24, 2022, 4:05 p.m. OK Java 8 TESTS 11 295 15872000
165581507 naveenkant227 B July 24, 2022, 4:18 p.m. OK Java 8 TESTS 11 295 20480000
165623505 TopSafder B July 25, 2022, 3:12 a.m. OK Java 8 TESTS 11 311 16384000
165575077 daredsakura B July 24, 2022, 3:58 p.m. OK Java 8 TESTS 11 327 33792000
165595080 rkmelody B July 24, 2022, 6:14 p.m. OK Kotlin 1.5 TESTS 11 421 11366400
165577136 Hideyoshi1100100001 B July 24, 2022, 4:04 p.m. OK MS C++ 2017 TESTS 11 93 819200
165586024 AntiEntropy B July 24, 2022, 4:32 p.m. OK MS C++ 2017 TESTS 11 234 819200
165578865 beckusator B July 24, 2022, 4:10 p.m. OK MS C++ 2017 TESTS 11 234 819200
165572328 cptahahab B July 24, 2022, 3:49 p.m. OK MS C++ 2017 TESTS 11 234 1638400
165575279 Scarecrow41 B July 24, 2022, 3:58 p.m. OK MS C++ 2017 TESTS 11 234 4812800
165597038 coding_boi_ayush B July 24, 2022, 6:35 p.m. OK MS C++ 2017 TESTS 11 234 6758400
165621589 lyqhh88 B July 25, 2022, 2:42 a.m. OK MS C++ 2017 TESTS 11 249 1638400
165578506 SuslovMax B July 24, 2022, 4:09 p.m. OK MS C++ 2017 TESTS 11 264 3174400
165572747 MagicD B July 24, 2022, 3:50 p.m. OK MS C++ 2017 TESTS 11 265 3788800
165584732 onipp B July 24, 2022, 4:29 p.m. OK MS C++ 2017 TESTS 11 265 4096000
165605266 Darooha B July 24, 2022, 8:37 p.m. OK Ocaml TESTS 11 62 2150400
165628542 misorin B July 25, 2022, 4:43 a.m. OK PyPy 3 TESTS 11 218 13107200
165597488 hxu10 B July 24, 2022, 6:42 p.m. OK PyPy 3 TESTS 11 218 15462400
165598059 YashNandwana B July 24, 2022, 6:49 p.m. OK PyPy 3 TESTS 11 234 11161600
165605025 LarryNY B July 24, 2022, 8:32 p.m. OK PyPy 3 TESTS 11 249 10854400
165619051 rajeshpenugonda6 B July 25, 2022, 2 a.m. OK PyPy 3 TESTS 11 327 24473600
165575646 hash1023 B July 24, 2022, 4 p.m. OK PyPy 3 TESTS 11 701 27852800
165599786 Noureldin B July 24, 2022, 7:12 p.m. OK PyPy 3 TESTS 11 764 17305600
165631083 mj_oppo B July 25, 2022, 5:27 a.m. OK PyPy 3 TESTS 11 1029 17510400
165592352 Sushobhan_4 B July 24, 2022, 5:50 p.m. OK PyPy 3 TESTS 11 1060 18432000
165575876 Hamid1385 B July 24, 2022, 4 p.m. OK PyPy 3 TESTS 11 1122 10240000
165594961 samchen123 B July 24, 2022, 6:13 p.m. OK PyPy 3-64 TESTS 11 124 13926400
165591590 Skillful_Wanderer B July 24, 2022, 5:45 p.m. OK PyPy 3-64 TESTS 11 155 14028800
165627861 iska_terminator B July 25, 2022, 4:29 a.m. OK PyPy 3-64 TESTS 11 171 17920000
165574432 petamingks B July 24, 2022, 3:56 p.m. OK PyPy 3-64 TESTS 11 171 19251200
165607281 oadey89 B July 24, 2022, 9:14 p.m. OK PyPy 3-64 TESTS 11 187 15462400
165587158 a_vantik_a B July 24, 2022, 4:34 p.m. OK PyPy 3-64 TESTS 11 187 17612800
165623951 sepa38 B July 25, 2022, 3:20 a.m. OK PyPy 3-64 TESTS 11 202 18329600
165621935 mohanned_war B July 25, 2022, 2:47 a.m. OK PyPy 3-64 TESTS 11 217 19456000
165605129 abhaumik24 B July 24, 2022, 8:34 p.m. OK PyPy 3-64 TESTS 11 218 15667200
165605695 sangram03 B July 24, 2022, 8:44 p.m. OK PyPy 3-64 TESTS 11 233 18636800
165592129 eugalt B July 24, 2022, 5:49 p.m. OK Python 3 TESTS 11 373 15872000
165615024 eugalt B July 25, 2022, 12:43 a.m. OK Python 3 TESTS 11 389 14643200
165575436 SJOKER B July 24, 2022, 3:59 p.m. OK Python 3 TESTS 11 404 6348800
165575439 kotprogrammist B July 24, 2022, 3:59 p.m. OK Python 3 TESTS 11 420 6348800
165596318 gotcoding124 B July 24, 2022, 6:27 p.m. OK Python 3 TESTS 11 436 6348800
165575011 fighting_wang B July 24, 2022, 3:58 p.m. OK Python 3 TESTS 11 436 15769600
165586035 eugalt B July 24, 2022, 4:32 p.m. OK Python 3 TESTS 11 436 16179200
165580671 prathamnagaria B July 24, 2022, 4:16 p.m. OK Python 3 TESTS 11 451 7168000
165581594 sandesh32 B July 24, 2022, 4:19 p.m. OK Python 3 TESTS 11 452 13312000
165600333 codeshav B July 24, 2022, 7:20 p.m. OK Python 3 TESTS 11 467 8704000
165592258 xttt B July 24, 2022, 5:50 p.m. OK Rust 2021 TESTS 11 31 4812800
165605765 apilat B July 24, 2022, 8:45 p.m. OK Rust 2021 TESTS 11 31 5427200
165578524 riverbl B July 24, 2022, 4:09 p.m. OK Rust 2021 TESTS 11 93 14745600
165596669 luukaos B July 24, 2022, 6:31 p.m. OK Rust 2021 TESTS 11 109 4710400
165580150 kena0ki B July 24, 2022, 4:14 p.m. OK Rust 2021 TESTS 11 124 10854400

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