Codeforces Round 771 (Div. 2)

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ContestId
Name
Phase
Frozen
Duration (Seconds)
Relative Time
Start Time
1638 Codeforces Round 771 (Div. 2) FINISHED False 7200 92330663 Feb. 14, 2022, 2:35 p.m.

Problems

Solved$
Index
Name
Type
Tags
Community Tag
Rating
( 21087 ) B Odd Swap Sort PROGRAMMING data structures math sortings

B'You are given an array a_1, a_2, ... , a_n . You can perform operations on the array. In each operation you can choose an integer i ( 1 <= i < n ), and swap elements a_i and a_{i+1} of the array, if a_i + a_{i+1} is odd. Determine whether it can be sorted in non-decreasing order using this operation any number of times. Each test contains multiple test cases. The first line contains a single integer t ( 1 <= t <= 10^5 ) -- the number of test cases. Description of the test cases follows. The first line of each test case contains a single integer n ( 1 <= n <= 10^5 ) -- the length of the array. The second line of each test case contains n integers a_1,a_2, ... , a_n ( 1 <= a_i <= 10^9 ) -- the elements of the array. It is guaranteed that the sum of n over all test cases does not exceed 2 cdot 10^5 . For each test case, print "Yes" or "No" depending on whether you can or can not sort the given array. You may print each letter in any case (for example, "YES", "Yes", "yes", "yEs" will all be recognized as positive answer). In the first test case, we can simply swap 31 and 14 ( 31 + 14 = 45 which is odd) and obtain the non-decreasing array [1,6,14,31] . In the second test case, the only way we could sort the array is by swapping 4 and 2 , but this is impossible, since their sum 4 + 2 = 6 is even. In the third test case, there is no way to make the array non-decreasing. In the fourth test case, the array is already non-decreasing. '...

Tutorials

Codeforces Round #771 Editorial

Submissions

Submission Id
Author(s)
Index
Submitted
Verdict
Language
Test Set
Tests Passed
Time taken (ms)
Memory Consumed (bytes)
Tags
Rating
146450713 rainboy B Feb. 14, 2022, 8:03 p.m. OK GNU C11 TESTS 82 421 0
146471102 Pawan_Lahoti B Feb. 15, 2022, 4:10 a.m. OK GNU C11 TESTS 82 421 819200
146425331 loki_7 B Feb. 14, 2022, 4:28 p.m. OK GNU C11 TESTS 82 436 1740800
146427020 nsu_Kilig B Feb. 14, 2022, 4:32 p.m. OK GNU C++14 TESTS 82 31 1331200
146469056 20203246 B Feb. 15, 2022, 3:40 a.m. OK GNU C++14 TESTS 82 31 1331200
146460502 SuperJ6 B Feb. 15, 2022, 12:25 a.m. OK GNU C++14 TESTS 82 62 0
146472242 0822 B Feb. 15, 2022, 4:27 a.m. OK GNU C++14 TESTS 82 62 0
146465212 n0I0c0K B Feb. 15, 2022, 2:30 a.m. OK GNU C++14 TESTS 82 62 0
146445371 freakin23 B Feb. 14, 2022, 7:11 p.m. OK GNU C++14 TESTS 82 62 102400
146468634 Inception02 B Feb. 15, 2022, 3:34 a.m. OK GNU C++14 TESTS 82 62 409600
146462883 luogu_bot3 B Feb. 15, 2022, 1:37 a.m. OK GNU C++14 TESTS 82 62 409600
146469588 liujiameng B Feb. 15, 2022, 3:48 a.m. OK GNU C++14 TESTS 82 62 409600
146470353 YunTian B Feb. 15, 2022, 3:59 a.m. OK GNU C++14 TESTS 82 62 409600
146464946 rbl_p B Feb. 15, 2022, 2:24 a.m. OK GNU C++17 TESTS 82 61 3993600
146453230 SajibKC_19 B Feb. 14, 2022, 8:43 p.m. OK GNU C++17 TESTS 82 61 4812800
146461319 Agent0007 B Feb. 15, 2022, 12:53 a.m. OK GNU C++17 TESTS 82 62 0
146449797 rahulmallick1115 B Feb. 14, 2022, 7:51 p.m. OK GNU C++17 TESTS 82 62 0
146472971 Mr_Crusher B Feb. 15, 2022, 4:38 a.m. OK GNU C++17 TESTS 82 62 0
146468393 HyDreamer B Feb. 15, 2022, 3:30 a.m. OK GNU C++17 TESTS 82 62 0
146455033 marS24 B Feb. 14, 2022, 9:18 p.m. OK GNU C++17 TESTS 82 62 204800
146456723 DeadPixel99 B Feb. 14, 2022, 9:58 p.m. OK GNU C++17 TESTS 82 62 409600
146465509 94wxd B Feb. 15, 2022, 2:36 a.m. OK GNU C++17 TESTS 82 62 409600
146475146 _C_H_M_ B Feb. 15, 2022, 5:07 a.m. OK GNU C++17 TESTS 82 62 409600
146459580 PurpleCrayon B Feb. 14, 2022, 11:50 p.m. OK GNU C++17 (64) TESTS 82 46 0
146451212 liyh B Feb. 14, 2022, 8:10 p.m. OK GNU C++17 (64) TESTS 82 46 409600
146463106 CN_jie B Feb. 15, 2022, 1:43 a.m. OK GNU C++17 (64) TESTS 82 46 409600
146463129 Mostafa_Moharram B Feb. 15, 2022, 1:44 a.m. OK GNU C++17 (64) TESTS 82 46 409600
146450612 mesbah19 B Feb. 14, 2022, 8:01 p.m. OK GNU C++17 (64) TESTS 82 46 614400
146478843 Tanzim_bn B Feb. 15, 2022, 5:53 a.m. OK GNU C++17 (64) TESTS 82 46 819200
146467197 Crescend0 B Feb. 15, 2022, 3:09 a.m. OK GNU C++17 (64) TESTS 82 46 1126400
146466402 lemongrab B Feb. 15, 2022, 2:53 a.m. OK GNU C++17 (64) TESTS 82 46 1228800
146463036 BhaTTa B Feb. 15, 2022, 1:41 a.m. OK GNU C++17 (64) TESTS 82 46 1228800
146448462 rishit3234 B Feb. 14, 2022, 7:35 p.m. OK GNU C++17 (64) TESTS 82 46 1228800
146459980 happypotato1207 B Feb. 15, 2022, 12:06 a.m. OK GNU C++20 (64) TESTS 82 46 0
146452478 Duldek B Feb. 14, 2022, 8:30 p.m. OK GNU C++20 (64) TESTS 82 46 0
146452008 brobat B Feb. 14, 2022, 8:22 p.m. OK GNU C++20 (64) TESTS 82 46 0
146450090 D_Dima B Feb. 14, 2022, 7:55 p.m. OK GNU C++20 (64) TESTS 82 46 0
146449478 sumitvivek_001 B Feb. 14, 2022, 7:47 p.m. OK GNU C++20 (64) TESTS 82 46 0
146446812 Pirated_Codes B Feb. 14, 2022, 7:20 p.m. OK GNU C++20 (64) TESTS 82 46 0
146446552 mdolchik B Feb. 14, 2022, 7:18 p.m. OK GNU C++20 (64) TESTS 82 46 0
146445415 IMANGINATOR B Feb. 14, 2022, 7:11 p.m. OK GNU C++20 (64) TESTS 82 46 0
146461591 DippleThree B Feb. 15, 2022, 1:02 a.m. OK GNU C++20 (64) TESTS 82 46 0
146472966 imtiyazrasool92 B Feb. 15, 2022, 4:38 a.m. OK GNU C++20 (64) TESTS 82 46 0
146462790 flash500 B Feb. 15, 2022, 1:34 a.m. OK Go TESTS 82 171 4608000
146446912 rdamir86 B Feb. 14, 2022, 7:21 p.m. OK Go TESTS 82 202 4608000
146425120 persevering B Feb. 14, 2022, 4:27 p.m. OK Go TESTS 82 233 6451200
146462557 meooow B Feb. 15, 2022, 1:28 a.m. OK Haskell TESTS 82 93 9420800
146425266 Satyaa B Feb. 14, 2022, 4:28 p.m. OK Java 11 TESTS 82 202 0
146459225 robinz62 B Feb. 14, 2022, 11:35 p.m. OK Java 11 TESTS 82 202 0
146448805 S-A-I-T-A-M-A B Feb. 14, 2022, 7:39 p.m. OK Java 11 TESTS 82 202 0
146425573 Halix B Feb. 14, 2022, 4:29 p.m. OK Java 11 TESTS 82 218 0
146474036 msarthak B Feb. 15, 2022, 4:52 a.m. OK Java 11 TESTS 82 218 0
146467926 sauravmandal B Feb. 15, 2022, 3:22 a.m. OK Java 11 TESTS 82 218 0
146450255 KarMa_ B Feb. 14, 2022, 7:57 p.m. OK Java 11 TESTS 82 218 0
146422920 Sandy_coder2001 B Feb. 14, 2022, 4:21 p.m. OK Java 11 TESTS 82 218 0
146477807 CrinklyGolem B Feb. 15, 2022, 5:41 a.m. OK Java 11 TESTS 82 233 0
146470522 krishnagskr983 B Feb. 15, 2022, 4:02 a.m. OK Java 11 TESTS 82 234 0
146458795 liheman B Feb. 14, 2022, 11:04 p.m. OK Java 8 TESTS 82 140 0
146470863 aryaman_571 B Feb. 15, 2022, 4:07 a.m. OK Java 8 TESTS 82 155 0
146463142 ved20 B Feb. 15, 2022, 1:44 a.m. OK Java 8 TESTS 82 155 0
146475724 SainiAayush B Feb. 15, 2022, 5:15 a.m. OK Java 8 TESTS 82 171 0
146462508 lcheeme1 B Feb. 15, 2022, 1:28 a.m. OK Java 8 TESTS 82 171 0
146450155 Mohamed_A7med B Feb. 14, 2022, 7:56 p.m. OK Java 8 TESTS 82 171 0
146479152 P_Key26dec B Feb. 15, 2022, 5:57 a.m. OK Java 8 TESTS 82 171 21708800
146466882 aggarwalanshul01 B Feb. 15, 2022, 3:02 a.m. OK Java 8 TESTS 82 186 7987200
146422307 g906360 B Feb. 14, 2022, 4:20 p.m. OK Java 8 TESTS 82 187 102400
146446982 Atuer B Feb. 14, 2022, 7:21 p.m. OK Java 8 TESTS 82 202 0
146455543 PER B Feb. 14, 2022, 9:28 p.m. OK Kotlin 1.5 TESTS 82 919 5120000
146473653 fragilistic B Feb. 15, 2022, 4:47 a.m. OK Mono C# TESTS 82 374 22425600
146477610 LuckyInaba14 B Feb. 15, 2022, 5:39 a.m. OK MS C++ 2017 TESTS 82 78 1638400
146451118 misaka12435 B Feb. 14, 2022, 8:09 p.m. OK MS C++ 2017 TESTS 82 420 409600
146469619 Ir0nic_Joker B Feb. 15, 2022, 3:49 a.m. OK MS C++ 2017 TESTS 82 436 0
146477517 Butyrka228 B Feb. 15, 2022, 5:38 a.m. OK MS C++ 2017 TESTS 82 467 1638400
146464324 _Rimjhim_36 B Feb. 15, 2022, 2:12 a.m. OK MS C++ 2017 TESTS 82 467 1945600
146474653 DikshantAvi B Feb. 15, 2022, 5:01 a.m. OK MS C++ 2017 TESTS 82 467 3174400
146466517 capability_Wu B Feb. 15, 2022, 2:55 a.m. OK MS C++ 2017 TESTS 82 468 1945600
146447469 MRX7 B Feb. 14, 2022, 7:26 p.m. OK MS C++ 2017 TESTS 82 483 819200
146467665 DikshantAvi B Feb. 15, 2022, 3:17 a.m. OK MS C++ 2017 TESTS 82 514 5632000
146447716 suraj B Feb. 14, 2022, 7:28 p.m. OK .NET Core C# TESTS 82 405 19353600
146462088 postnerd B Feb. 15, 2022, 1:16 a.m. OK Node.js TESTS 82 670 26521600
146458269 _con B Feb. 14, 2022, 10:46 p.m. OK Node.js TESTS 82 686 26214400
146463088 ddcovery B Feb. 15, 2022, 1:42 a.m. OK Node.js TESTS 82 748 26726400
146419823 BlackPeacock B Feb. 14, 2022, 4:13 p.m. OK Node.js TESTS 82 966 21504000
146445293 1_2_3_4_5_9 B Feb. 14, 2022, 7:11 p.m. OK PyPy 2 TESTS 82 187 14028800
146472941 mnkqc B Feb. 15, 2022, 4:37 a.m. OK PyPy 3 TESTS 82 218 12800000
146473139 mnkqc B Feb. 15, 2022, 4:40 a.m. OK PyPy 3 TESTS 82 218 15360000
146477122 feelme B Feb. 15, 2022, 5:33 a.m. OK PyPy 3 TESTS 82 233 15257600
146455574 hritik3878 B Feb. 14, 2022, 9:29 p.m. OK PyPy 3 TESTS 82 280 15872000
146472175 Adolf988 B Feb. 15, 2022, 4:26 a.m. OK PyPy 3 TESTS 82 280 17305600
146454764 Pheonix23 B Feb. 14, 2022, 9:12 p.m. OK PyPy 3 TESTS 82 342 15872000
146445197 NecroSean38 B Feb. 14, 2022, 7:10 p.m. OK PyPy 3 TESTS 82 343 15974400
146479570 tharun_99 B Feb. 15, 2022, 6:01 a.m. OK PyPy 3 TESTS 82 358 14028800
146454176 axe98 B Feb. 14, 2022, 9:01 p.m. OK PyPy 3 TESTS 82 374 13619200
146473616 _nathan_drake_ B Feb. 15, 2022, 4:47 a.m. OK PyPy 3 TESTS 82 374 13926400
146473111 mnkqc B Feb. 15, 2022, 4:40 a.m. OK PyPy 3-64 TESTS 82 155 26931200
146445934 Aksnov B Feb. 14, 2022, 7:14 p.m. OK PyPy 3-64 TESTS 82 187 21606400
146452440 yusinv B Feb. 14, 2022, 8:30 p.m. OK PyPy 3-64 TESTS 82 218 25190400
146477208 mayank35 B Feb. 15, 2022, 5:34 a.m. OK PyPy 3-64 TESTS 82 218 27136000
146452502 IkshitG B Feb. 14, 2022, 8:31 p.m. OK PyPy 3-64 TESTS 82 233 19865600
146458343 bpdolson B Feb. 14, 2022, 10:48 p.m. OK PyPy 3-64 TESTS 82 249 26521600
146453555 raushnn B Feb. 14, 2022, 8:49 p.m. OK PyPy 3-64 TESTS 82 249 27033600
146466953 manojsagar066 B Feb. 15, 2022, 3:04 a.m. OK PyPy 3-64 TESTS 82 264 17612800
146464055 rutz12 B Feb. 15, 2022, 2:06 a.m. OK PyPy 3-64 TESTS 82 264 21504000
146478043 TerminalWarlord B Feb. 15, 2022, 5:43 a.m. OK PyPy 3-64 TESTS 82 280 21913600
146445566 OLOGY B Feb. 14, 2022, 7:12 p.m. OK Python 2 TESTS 82 233 7577600
146457893 OLOGY B Feb. 14, 2022, 10:32 p.m. OK Python 2 TESTS 82 280 7782400
146477540 ramjeeraghu B Feb. 15, 2022, 5:38 a.m. OK Python 3 TESTS 82 280 10240000
146454145 axe98 B Feb. 14, 2022, 9 p.m. OK Python 3 TESTS 82 311 7782400
146468437 Dahoas B Feb. 15, 2022, 3:31 a.m. OK Python 3 TESTS 82 311 9011200
146472567 Srirambabu B Feb. 15, 2022, 4:32 a.m. OK Python 3 TESTS 82 389 10444800
146469514 pennymagic156 B Feb. 15, 2022, 3:47 a.m. OK Python 3 TESTS 82 405 9523200
146467265 eugalt B Feb. 15, 2022, 3:10 a.m. OK Python 3 TESTS 82 405 9932800
146469573 pennymagic156 B Feb. 15, 2022, 3:48 a.m. OK Python 3 TESTS 82 405 10342400
146473804 _nathan_drake_ B Feb. 15, 2022, 4:49 a.m. OK Python 3 TESTS 82 420 10444800
146473769 _nathan_drake_ B Feb. 15, 2022, 4:48 a.m. OK Python 3 TESTS 82 421 10444800
146427923 ankur.vision B Feb. 14, 2022, 4:34 p.m. OK Python 3 TESTS 82 421 12697600

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