Codeforces Round 648 (Div. 2)

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ContestId
Name
Phase
Frozen
Duration (Seconds)
Relative Time
Start Time
1365 Codeforces Round 648 (Div. 2) FINISHED False 8100 140282699 June 7, 2020, 2:35 p.m.

Problems

Solved$
Index
Name
Type
Tags
Community Tag
Rating
( 4460 ) F Swaps Again PROGRAMMING constructive algorithms implementation sortings 2100

B'Ayush, Ashish and Vivek are busy preparing a new problem for the next Codeforces round and need help checking if their test cases are valid. Each test case consists of an integer n and two arrays a and b , of size n . If after some (possibly zero) operations described below, array a can be transformed into array b , the input is said to be valid. Otherwise, it is invalid. An operation on array a is: For example, if array a initially is {1, 2, 3, 4, 5, 6 } , after performing an operation with k = 2 , it is transformed into {5, 6, 3, 4, 1, 2 } . Given the set of test cases, help them determine if each one is valid or invalid. The first line contains one integer t (1 <= t <= 500) -- the number of test cases. The description of each test case is as follows. The first line of each test case contains a single integer n (1 <= n <= 500) -- the size of the arrays. The second line of each test case contains n integers a_1 , a_2 , ..., a_n (1 <= a_i <= 10^9) -- elements of array a . The third line of each test case contains n integers b_1 , b_2 , ..., b_n (1 <= b_i <= 10^9) -- elements of array b . For each test case, print "Yes" if the given input is valid. Otherwise print "No". You may print the answer in any case. For the first test case, we can swap prefix a[1:1] with suffix a[2:2] to get a=[2, 1] . For the second test case, a is already equal to b . For the third test case, it is impossible since we cannot obtain 3 in a . For the fourth test case, we can first swap prefix a[1:1] with suffix a[4:4] to obtain a=[2, 2, 3, 1] . Now we can swap prefix a[1:2] with suffix a[3:4] to obtain a=[3, 1, 2, 2] . For the fifth test case, it is impossible to convert a to b . '...

Tutorials

Editorial — Codeforces Round #648

Submissions

Submission Id
Author(s)
Index
Submitted
Verdict
Language
Test Set
Tests Passed
Time taken (ms)
Memory Consumed (bytes)
Tags
Rating
82887056 Gassa F June 7, 2020, 8:07 p.m. OK D TESTS 118 234 6144000 2100
82887286 Gassa F June 7, 2020, 8:11 p.m. OK D TESTS 118 249 6144000 2100
82899398 ruban F June 8, 2020, 2:29 a.m. OK FPC TESTS 118 202 176332800 2100
83135413 jiedai F June 8, 2020, 12:41 p.m. OK GNU C++11 TESTS 122 61 0 2100
82897345 jeffyang F June 8, 2020, 1:30 a.m. OK GNU C++11 TESTS 118 61 0 2100
83152323 lin_rany F June 8, 2020, 3:50 p.m. OK GNU C++11 TESTS 122 61 4812800 2100
83136500 Thomasguo666 F June 8, 2020, 12:53 p.m. OK GNU C++11 TESTS 122 62 0 2100
82972628 Ghost_Dragon F June 8, 2020, 5:24 a.m. OK GNU C++11 TESTS 121 62 0 2100
82972462 Ghost_Dragon F June 8, 2020, 5:21 a.m. OK GNU C++11 TESTS 121 62 0 2100
82897593 jeffyang F June 8, 2020, 1:39 a.m. OK GNU C++11 TESTS 118 62 0 2100
82897260 Echo6342 F June 8, 2020, 1:28 a.m. OK GNU C++11 TESTS 118 62 0 2100
82895150 AyoAyowei F June 8, 2020, 12:11 a.m. OK GNU C++11 TESTS 118 62 0 2100
83124882 AutumnKite F June 8, 2020, 10:33 a.m. OK GNU C++11 TESTS 122 62 16793600 2100
83258052 _zay F June 9, 2020, 11:33 p.m. OK GNU C++14 TESTS 123 77 2252800 2100
82893053 Linkus F June 7, 2020, 10:41 p.m. OK GNU C++14 TESTS 118 78 204800 2100
83150839 jairadheyshyam F June 8, 2020, 3:34 p.m. OK GNU C++14 TESTS 122 124 204800 2100
83210106 petrov_defence F June 9, 2020, 10:41 a.m. OK GNU C++14 TESTS 123 140 204800 2100
83169872 starboy_jb F June 8, 2020, 8:11 p.m. OK GNU C++14 TESTS 122 140 204800 2100
83141716 BUG-JR F June 8, 2020, 1:58 p.m. OK GNU C++14 TESTS 122 140 204800 2100
83388835 t.mazenamria F June 11, 2020, 2:25 p.m. OK GNU C++14 TESTS 123 140 307200 2100
83272292 ankto F June 10, 2020, 6:10 a.m. OK GNU C++14 TESTS 123 140 307200 2100
83265993 atom0410 F June 10, 2020, 4:06 a.m. OK GNU C++14 TESTS 123 140 307200 2100
83187438 lequockhanh8a7 F June 9, 2020, 5:29 a.m. OK GNU C++14 TESTS 122 140 307200 2100
83259886 _LT_zyc F June 10, 2020, 12:59 a.m. OK GNU C++17 TESTS 123 124 409600 2100
83327313 k_8 F June 10, 2020, 6:12 p.m. OK GNU C++17 TESTS 123 139 307200 2100
83336727 meet29 F June 10, 2020, 9:45 p.m. OK GNU C++17 TESTS 123 140 204800 2100
83167810 S_A.H_ F June 8, 2020, 7:26 p.m. OK GNU C++17 TESTS 122 140 204800 2100
83165470 err0r F June 8, 2020, 6:46 p.m. OK GNU C++17 TESTS 122 140 204800 2100
83158027 kurzgesagt F June 8, 2020, 5:02 p.m. OK GNU C++17 TESTS 122 140 204800 2100
83142086 d4rkn19ht F June 8, 2020, 2:02 p.m. OK GNU C++17 TESTS 122 140 204800 2100
83119803 HNO2 F June 8, 2020, 9:28 a.m. OK GNU C++17 TESTS 122 140 204800 2100
83109495 hitman623 F June 8, 2020, 7:20 a.m. OK GNU C++17 TESTS 122 140 204800 2100
83087937 Priyam2k F June 8, 2020, 6:12 a.m. OK GNU C++17 TESTS 121 140 204800 2100
83175234 Bediver F June 8, 2020, 11:19 p.m. OK GNU C++17 (64) TESTS 122 109 0 2100
83162733 snapes F June 8, 2020, 6:06 p.m. OK GNU C++17 (64) TESTS 122 109 0 2100
82886703 emorgan5289 F June 7, 2020, 8:02 p.m. OK GNU C++17 (64) TESTS 118 109 0 2100
82883374 Pred F June 7, 2020, 7:17 p.m. OK GNU C++17 (64) TESTS 118 109 0 2100
82895874 Pandemic F June 8, 2020, 12:38 a.m. OK GNU C++17 (64) TESTS 118 109 204800 2100
82888796 AryssonFigueiredo F June 7, 2020, 8:40 p.m. OK GNU C++17 (64) TESTS 118 109 204800 2100
83116114 Kotehok3 F June 8, 2020, 8:43 a.m. OK GNU C++17 (64) TESTS 122 109 307200 2100
83386629 soumya_27 F June 11, 2020, 1:57 p.m. OK GNU C++17 (64) TESTS 123 124 0 2100
83373713 alif_cse_ju F June 11, 2020, 11:01 a.m. OK GNU C++17 (64) TESTS 123 124 0 2100
83253560 guptapratham42 F June 9, 2020, 8:34 p.m. OK GNU C++17 (64) TESTS 123 124 0 2100
83333589 magnickolas F June 10, 2020, 8:16 p.m. OK Go TESTS 123 498 5324800 2100
82893867 atishay127 F June 7, 2020, 11:16 p.m. OK Java 11 TESTS 118 218 0 2100
82893384 atishay127 F June 7, 2020, 10:54 p.m. OK Java 11 TESTS 118 233 0 2100
83299210 533.sandyhu F June 10, 2020, 12:29 p.m. OK Java 11 TESTS 123 264 0 2100
83111167 zhupeijun F June 8, 2020, 7:42 a.m. OK Java 11 TESTS 122 296 0 2100
83178718 anhtaihsgs F June 9, 2020, 1:45 a.m. OK Java 11 TESTS 122 327 0 2100
82888282 bobib F June 7, 2020, 8:30 p.m. OK Java 11 TESTS 118 342 0 2100
82890997 skittles1412 F June 7, 2020, 9:33 p.m. OK Java 11 TESTS 118 343 0 2100
83225455 hiromi_ayase F June 9, 2020, 2:01 p.m. OK Java 11 TESTS 123 358 0 2100
83156242 AshrafEzz F June 8, 2020, 4:35 p.m. OK Java 11 TESTS 122 358 0 2100
83021175 PizzaLovers007 F June 8, 2020, 5:36 a.m. OK Java 11 TESTS 121 358 0 2100
83202974 bluesky111 F June 9, 2020, 9:03 a.m. OK Java 8 TESTS 123 156 0 2100
82890999 priyesh001 F June 7, 2020, 9:33 p.m. OK Java 8 TESTS 118 202 0 2100
83338501 Sharon F June 10, 2020, 10:57 p.m. OK Java 8 TESTS 123 218 0 2100
83341679 yaoct F June 11, 2020, 1:28 a.m. OK Java 8 TESTS 123 233 0 2100
83262986 DanielW48 F June 10, 2020, 2:46 a.m. OK Java 8 TESTS 123 233 0 2100
83212120 tsumit023 F June 9, 2020, 11:07 a.m. OK Java 8 TESTS 123 233 0 2100
83144163 ydned F June 8, 2020, 2:26 p.m. OK Java 8 TESTS 122 233 0 2100
82896240 akram-adel F June 8, 2020, 12:52 a.m. OK Java 8 TESTS 118 233 0 2100
83303085 4qqqqzzz F June 10, 2020, 1:22 p.m. OK Java 8 TESTS 123 249 0 2100
82894567 ShesMyNerd F June 7, 2020, 11:47 p.m. OK Java 8 TESTS 118 249 0 2100
83149436 Spheniscine F June 8, 2020, 3:20 p.m. OK Kotlin TESTS 122 248 1126400 2100
83149867 Spheniscine F June 8, 2020, 3:24 p.m. OK Kotlin TESTS 122 264 1024000 2100
83149084 Spheniscine F June 8, 2020, 3:16 p.m. OK Kotlin TESTS 122 264 1126400 2100
83157605 golions F June 8, 2020, 4:55 p.m. OK Kotlin TESTS 122 343 102400 2100
82881893 Hakiobo F June 7, 2020, 7:01 p.m. OK Kotlin TESTS 118 405 716800 2100
83251554 Mosyagin F June 9, 2020, 7:45 p.m. OK Mono C# TESTS 123 280 3379200 2100
83106405 avtoruxadze F June 8, 2020, 6:41 a.m. OK Mono C# TESTS 121 389 7168000 2100
83233134 olpetOdessaONU F June 9, 2020, 3:23 p.m. OK MS C++ TESTS 123 155 0 2100
83322094 JulesIMF F June 10, 2020, 4:57 p.m. OK MS C++ 2017 TESTS 123 483 307200 2100
83148506 ilya_totl F June 8, 2020, 3:10 p.m. OK MS C++ 2017 TESTS 122 499 204800 2100
82888725 reikiriyama F June 7, 2020, 8:39 p.m. OK MS C++ 2017 TESTS 118 514 102400 2100
83123013 leeyupeng F June 8, 2020, 10:09 a.m. OK MS C++ 2017 TESTS 122 529 102400 2100
82890259 jackcaptain F June 7, 2020, 9:13 p.m. OK MS C++ 2017 TESTS 118 530 102400 2100
83257040 Shify F June 9, 2020, 10:41 p.m. OK MS C++ 2017 TESTS 123 546 307200 2100
82891071 jackcaptain F June 7, 2020, 9:35 p.m. OK MS C++ 2017 TESTS 118 561 102400 2100
83545708 MrBear F June 12, 2020, 3:38 p.m. OK MS C++ 2017 TESTS 123 561 307200 2100
83125989 samarth9421 F June 8, 2020, 10:46 a.m. OK MS C++ 2017 TESTS 122 561 4300800 2100
82890897 realnimish F June 7, 2020, 9:30 p.m. OK PyPy 2 TESTS 118 311 18534400 2100
82890628 realnimish F June 7, 2020, 9:22 p.m. OK PyPy 2 TESTS 118 311 18841600 2100
83138733 raj1307 F June 8, 2020, 1:22 p.m. OK PyPy 2 TESTS 122 483 22835200 2100
83196267 snape_here F June 9, 2020, 7:35 a.m. OK PyPy 2 TESTS 122 561 24473600 2100
82878682 your_Daddy___ F June 7, 2020, 6:34 p.m. OK PyPy 2 TESTS 118 592 8294400 2100
83117200 pratikjain226 F June 8, 2020, 8:57 a.m. OK PyPy 2 TESTS 122 592 23654400 2100
82877989 chayapatlbs F June 7, 2020, 6:29 p.m. OK PyPy 3 TESTS 118 311 7987200 2100
83528478 aberent F June 12, 2020, 12:08 p.m. OK PyPy 3 TESTS 123 312 10137600 2100
82878289 chayapatlbs F June 7, 2020, 6:31 p.m. OK PyPy 3 TESTS 118 343 7987200 2100
82879139 chayapatlbs F June 7, 2020, 6:37 p.m. OK PyPy 3 TESTS 118 358 7782400 2100
83108495 __eRRor__ F June 8, 2020, 7:07 a.m. OK PyPy 3 TESTS 121 421 7475200 2100
83203983 UTMoonlight F June 9, 2020, 9:17 a.m. OK PyPy 3 TESTS 123 498 7884800 2100
82890660 FireBird23 F June 7, 2020, 9:24 p.m. OK PyPy 3 TESTS 118 561 18124800 2100
83275278 tycyd F June 10, 2020, 6:52 a.m. OK PyPy 3 TESTS 123 639 10342400 2100
83279420 siyy F June 10, 2020, 7:52 a.m. OK PyPy 3 TESTS 123 654 26931200 2100
82883517 zii.hrs F June 7, 2020, 7:19 p.m. OK PyPy 3 TESTS 118 685 10240000 2100
83107008 ComptineDunAutreEte F June 8, 2020, 6:48 a.m. OK Python 2 TESTS 121 577 1024000 2100
83203679 weichee.yew F June 9, 2020, 9:13 a.m. OK Python 3 TESTS 123 421 1024000 2100
83268671 tinker_1337 F June 10, 2020, 5:07 a.m. OK Python 3 TESTS 123 421 1126400 2100
83295322 reddyjaideep17 F June 10, 2020, 11:37 a.m. OK Python 3 TESTS 123 436 1024000 2100
83555465 paimon F June 12, 2020, 6:34 p.m. OK Python 3 TESTS 123 436 1433600 2100
83297317 nebocco F June 10, 2020, 12:04 p.m. OK Python 3 TESTS 123 483 1331200 2100
83322271 amurto F June 10, 2020, 5 p.m. OK Python 3 TESTS 123 530 1126400 2100
83250688 chgliu F June 9, 2020, 7:28 p.m. OK Python 3 TESTS 123 530 1228800 2100
83116355 Pozhiloy_Vityok F June 8, 2020, 8:46 a.m. OK Python 3 TESTS 122 561 1228800 2100
83110685 Sunlight_sp F June 8, 2020, 7:36 a.m. OK Python 3 TESTS 122 561 1228800 2100
83152487 D_Jahnvai F June 8, 2020, 3:52 p.m. OK Python 3 TESTS 122 577 1228800 2100
83380963 cotton100pc F June 11, 2020, 12:39 p.m. OK Rust TESTS 123 78 409600 2100
83501021 t-uchida F June 12, 2020, 5:47 a.m. OK Rust TESTS 123 93 1024000 2100
83175792 kobae964 F June 8, 2020, 11:48 p.m. OK Rust TESTS 122 171 512000 2100

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