Codeforces Round 1065 (Div. 3)

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
2171 Codeforces Round 1065 (Div. 3) FINISHED False 9000 12756323 Nov. 20, 2025, 2:35 p.m.

Problems

Solved
Index
Name
Type
Tags
Community Tag
Rating
( 19074 ) C1 Renako Amaori and XOR Game (easy version) PROGRAMMING games greedy

This is the easy version of the problem. The only difference between the easy and hard versions is that in the easy version, (a_i, b_i \leq 1). Renako is stuck between a rock and a hard place... and by that, of course, I mean Ajisai and Mai! Both of them want to hang out with her, and she just can't decide! So Ajisai and Mai have decided to play the XOR game. Ajisai and Mai are given arrays (a) and (b) of length (n) ((0\leq a_i, b_i\leq {\color{red}{1}})). They will play a game that lasts for (n) turns, where Ajisai moves on odd-numbered turns and Mai moves on even-numbered turns. On the (i)-th turn, the player to move may choose to swap (a_i) and (b_i), or pass. Note that if a swap occurs, the index that is being swapped must match the turn number . For example, on the first turn, Ajisai may choose to swap (a_1) and (b_1), or pass. On the second turn, Mai may choose to swap (a_2) and (b_2), or pass. This continues for (n) turns. Thus, only Ajisai can swap odd indices, and only Mai can swap even indices. At the end of the game, Ajisai achieves a score of (a_1 \oplus a_2 \oplus \dots \oplus a_n), and Mai achieves a score of (b_1 \oplus b_2 \oplus \dots \oplus b_n)(^{\text{∗}}). The player with the higher score wins. If the players have the same score, the game ends in a tie. Determine the outcome of the game with optimal play. More formally, one player is considered to win with optimal play if there exists a strategy for them such that they always win, regardless of their opponent's choices. The game is considered a tie with optimal play if neither player has such a strategy. (^{\text{∗}})(\oplus) denotes the bitwise XOR operation The first line contains a single integer (t) ((1\leq t\leq 10^4)) — the number of test cases. The first line of each test case contains a single integer (n) ((1\leq n\leq 2\cdot 10^5)). The second line of each test case contains (n) int

Tutorials

Codeforces Round 1065 (Div. 3) Editorial

Submissions

Submission Id
Author(s)
Index
Submitted
Verdict
Language
Test Set
Tests Passed
Time taken (ms)
Memory Consumed (bytes)
Tags
Rating
350014872 oh_mai_gahh C1 Nov. 21, 2025, 3:51 a.m. OK C++17 (GCC 7-32) TESTS 9 62 0
350037373 Moya_Rao C1 Nov. 21, 2025, 8:45 a.m. OK C++17 (GCC 7-32) TESTS 9 92 1638400
350153052 rd42 C1 Nov. 22, 2025, 5:52 a.m. OK C++17 (GCC 7-32) TESTS 9 93 0
350147274 dhanu_9191 C1 Nov. 22, 2025, 4:32 a.m. OK C++17 (GCC 7-32) TESTS 9 93 0
350147182 prateekjain C1 Nov. 22, 2025, 4:31 a.m. OK C++17 (GCC 7-32) TESTS 9 93 0
350146175 adityajha7 C1 Nov. 22, 2025, 4:13 a.m. OK C++17 (GCC 7-32) TESTS 9 93 0
350144840 akylmanalan C1 Nov. 22, 2025, 3:48 a.m. OK C++17 (GCC 7-32) TESTS 9 93 0
350144322 akshatshah1605 C1 Nov. 22, 2025, 3:38 a.m. OK C++17 (GCC 7-32) TESTS 9 93 0
350142414 yhaha52 C1 Nov. 22, 2025, 3:01 a.m. OK C++17 (GCC 7-32) TESTS 9 93 0
350138952 chohaingu C1 Nov. 22, 2025, 1:48 a.m. OK C++17 (GCC 7-32) TESTS 9 93 0
350055623 xzyg C1 Nov. 21, 2025, 11:19 a.m. OK C++20 (GCC 13-64) TESTS 9 77 3174400
350016701 PatienceL C1 Nov. 21, 2025, 4:23 a.m. OK C++20 (GCC 13-64) TESTS 9 92 0
350154595 _gokul20_ C1 Nov. 22, 2025, 6:10 a.m. OK C++20 (GCC 13-64) TESTS 9 93 0
350154133 Sahilpal45 C1 Nov. 22, 2025, 6:04 a.m. OK C++20 (GCC 13-64) TESTS 9 93 0
350154043 LuOH3_ C1 Nov. 22, 2025, 6:03 a.m. OK C++20 (GCC 13-64) TESTS 9 93 0
350150995 chetan69 C1 Nov. 22, 2025, 5:27 a.m. OK C++20 (GCC 13-64) TESTS 9 93 0
350150269 dukangqi C1 Nov. 22, 2025, 5:17 a.m. OK C++20 (GCC 13-64) TESTS 9 93 0
350146443 coder_mk C1 Nov. 22, 2025, 4:18 a.m. OK C++20 (GCC 13-64) TESTS 9 93 0
350145994 average_loser C1 Nov. 22, 2025, 4:10 a.m. OK C++20 (GCC 13-64) TESTS 9 93 0
350145030 yuanmouren C1 Nov. 22, 2025, 3:52 a.m. OK C++20 (GCC 13-64) TESTS 9 93 0
350150084 omgetic C1 Nov. 22, 2025, 5:15 a.m. OK C++23 (GCC 14-64, msys2) TESTS 9 46 0
350137705 Coast23 C1 Nov. 22, 2025, 1:18 a.m. OK C++23 (GCC 14-64, msys2) TESTS 9 62 0
350073554 chenweizhen C1 Nov. 21, 2025, 1:40 p.m. OK C++23 (GCC 14-64, msys2) TESTS 9 62 20070400
350140820 Crepper111 C1 Nov. 22, 2025, 2:28 a.m. OK C++23 (GCC 14-64, msys2) TESTS 9 77 1638400
350057557 Ljj18 C1 Nov. 21, 2025, 11:34 a.m. OK C++23 (GCC 14-64, msys2) TESTS 9 78 0
350019173 ja-twe C1 Nov. 21, 2025, 5:07 a.m. OK C++23 (GCC 14-64, msys2) TESTS 9 78 0
350153640 _Lahane_Aditya_ C1 Nov. 22, 2025, 5:59 a.m. OK C++23 (GCC 14-64, msys2) TESTS 9 93 0
350150303 Wang- C1 Nov. 22, 2025, 5:18 a.m. OK C++23 (GCC 14-64, msys2) TESTS 9 93 0
350148868 wiz.jayyy C1 Nov. 22, 2025, 4:57 a.m. OK C++23 (GCC 14-64, msys2) TESTS 9 93 0
350147187 anuragtomar10 C1 Nov. 22, 2025, 4:31 a.m. OK C++23 (GCC 14-64, msys2) TESTS 9 93 0
350015472 gxlois C1 Nov. 21, 2025, 4:01 a.m. OK D TESTS 9 109 13414400
350037280 eugalt C1 Nov. 21, 2025, 8:45 a.m. OK GNU C11 TESTS 9 31 1024000
350103085 mangalythakkar15807 C1 Nov. 21, 2025, 5:17 p.m. OK GNU C11 TESTS 9 93 1638400
350054135 CODETORUN C1 Nov. 21, 2025, 11:06 a.m. OK GNU C11 TESTS 9 124 1638400
350019095 qingfu C1 Nov. 21, 2025, 5:06 a.m. OK GNU C11 TESTS 9 124 1638400
349991592 abdelrahman8811 C1 Nov. 20, 2025, 8:06 p.m. OK GNU C11 TESTS 9 124 1638400
350123615 Saiykue C1 Nov. 21, 2025, 8:12 p.m. OK GNU C11 TESTS 9 124 1740800
350110038 Pqrsaw C1 Nov. 21, 2025, 6:12 p.m. OK GNU C11 TESTS 9 124 3174400
350018951 2MasTeRW2 C1 Nov. 21, 2025, 5:04 a.m. OK GNU C11 TESTS 9 139 1843200
350147611 weiye05 C1 Nov. 22, 2025, 4:38 a.m. OK GNU C11 TESTS 9 140 1638400
350053902 CODETORUN C1 Nov. 21, 2025, 11:04 a.m. OK GNU C11 TESTS 9 140 1638400
350014858 uffhottie C1 Nov. 21, 2025, 3:51 a.m. OK Go TESTS 9 109 3891200
350098251 nguyennhat.110120 C1 Nov. 21, 2025, 4:38 p.m. OK Go TESTS 9 140 4096000
350011300 liyu C1 Nov. 21, 2025, 2:55 a.m. OK Go TESTS 9 155 8294400
350070068 sagar19197 C1 Nov. 21, 2025, 1:13 p.m. OK Java 21 TESTS 9 265 0
350003707 raYRS2geSiiPYP4D C1 Nov. 21, 2025, 12:03 a.m. OK Java 21 TESTS 9 265 204800
350056600 sobhit_raghav C1 Nov. 21, 2025, 11:27 a.m. OK Java 21 TESTS 9 280 307200
350073492 Harsh_Vince C1 Nov. 21, 2025, 1:39 p.m. OK Java 21 TESTS 9 280 716800
350083642 Rajat633 C1 Nov. 21, 2025, 2:53 p.m. OK Java 21 TESTS 9 281 512000
350114088 NpHardcore_05 C1 Nov. 21, 2025, 6:44 p.m. OK Java 21 TESTS 9 281 1024000
349991419 dharahas C1 Nov. 20, 2025, 8:04 p.m. OK Java 21 TESTS 9 296 512000
350047081 Balu2907 C1 Nov. 21, 2025, 10:01 a.m. OK Java 21 TESTS 9 296 716800
350077502 alwaysreddysudeep C1 Nov. 21, 2025, 2:08 p.m. OK Java 21 TESTS 9 296 1331200
350150658 ShubhamChaudhary18 C1 Nov. 22, 2025, 5:23 a.m. OK Java 21 TESTS 9 311 512000
350131984 Pranav_Sharda C1 Nov. 21, 2025, 10:27 p.m. OK Java 8 TESTS 9 171 0
350096673 ankush_017 C1 Nov. 21, 2025, 4:25 p.m. OK Java 8 TESTS 9 202 0
350110131 ronwonwon C1 Nov. 21, 2025, 6:12 p.m. OK Java 8 TESTS 9 203 0
350083514 swastikg176 C1 Nov. 21, 2025, 2:52 p.m. OK Java 8 TESTS 9 312 14336000
350040086 pavanadhitya66 C1 Nov. 21, 2025, 9:07 a.m. OK Java 8 TESTS 9 515 0
350106054 not_mohith C1 Nov. 21, 2025, 5:40 p.m. OK Java 8 TESTS 9 530 0
350100086 wanderer1509 C1 Nov. 21, 2025, 4:53 p.m. OK Java 8 TESTS 9 530 0
350042575 clara_ C1 Nov. 21, 2025, 9:26 a.m. OK Java 8 TESTS 9 530 0
350080960 KLU2300033802 C1 Nov. 21, 2025, 2:33 p.m. OK Java 8 TESTS 9 531 0
349991537 yashbansal99 C1 Nov. 20, 2025, 8:05 p.m. OK Java 8 TESTS 9 561 0
350066272 SlavaG C1 Nov. 21, 2025, 12:43 p.m. OK Kotlin 2.2 TESTS 9 359 9523200
350121330 kunalthapliyal07 C1 Nov. 21, 2025, 7:49 p.m. OK PyPy 3 TESTS 9 249 20480000
349996709 gizachew980 C1 Nov. 20, 2025, 9:16 p.m. OK PyPy 3 TESTS 9 374 20070400
350079575 bisleribaddie C1 Nov. 21, 2025, 2:23 p.m. OK PyPy 3 TESTS 9 468 15155200
350070440 aa_despa C1 Nov. 21, 2025, 1:16 p.m. OK PyPy 3-64 TESTS 9 156 27648000
350023946 henok_t_k C1 Nov. 21, 2025, 6:19 a.m. OK PyPy 3-64 TESTS 9 171 27750400
350132647 OpKos C1 Nov. 21, 2025, 10:43 p.m. OK PyPy 3-64 TESTS 9 171 27955200
350044664 cryptic25 C1 Nov. 21, 2025, 9:42 a.m. OK PyPy 3-64 TESTS 9 171 28774400
350002843 lattermatter C1 Nov. 20, 2025, 11:35 p.m. OK PyPy 3-64 TESTS 9 186 24678400
350019639 lightningforce C1 Nov. 21, 2025, 5:14 a.m. OK PyPy 3-64 TESTS 9 186 28467200
350039060 realaashil C1 Nov. 21, 2025, 8:59 a.m. OK PyPy 3-64 TESTS 9 186 29286400
350055094 liar3743 C1 Nov. 21, 2025, 11:14 a.m. OK PyPy 3-64 TESTS 9 187 27955200
350095359 Equinox_Ya C1 Nov. 21, 2025, 4:16 p.m. OK PyPy 3-64 TESTS 9 187 28467200
350074290 brahmastra_ C1 Nov. 21, 2025, 1:45 p.m. OK PyPy 3-64 TESTS 9 187 28569600
350075017 _Lakshit_25 C1 Nov. 21, 2025, 1:51 p.m. OK Python 2 TESTS 9 311 3993600
350076653 PVHKReddy C1 Nov. 21, 2025, 2:02 p.m. OK Python 3 TESTS 9 109 9113600
349996421 bytecrafted C1 Nov. 20, 2025, 9:11 p.m. OK Python 3 TESTS 9 171 8396800
350119281 MishanyaSiu C1 Nov. 21, 2025, 7:29 p.m. OK Python 3 TESTS 9 171 9420800
349997123 spidersweb C1 Nov. 20, 2025, 9:22 p.m. OK Python 3 TESTS 9 186 9318400
350152739 AKr_09 C1 Nov. 22, 2025, 5:49 a.m. OK Python 3 TESTS 9 187 9216000
350013197 javoh1964 C1 Nov. 21, 2025, 3:24 a.m. OK Python 3 TESTS 9 202 8601600
350102314 Mitanshu13 C1 Nov. 21, 2025, 5:11 p.m. OK Python 3 TESTS 9 202 9420800
350006450 coder.sy C1 Nov. 21, 2025, 1:20 a.m. OK Python 3 TESTS 9 202 9420800
350008684 narendar_92 C1 Nov. 21, 2025, 2:08 a.m. OK Python 3 TESTS 9 203 13516800
350012542 minato_hajimi C1 Nov. 21, 2025, 3:16 a.m. OK Python 3 TESTS 9 217 8806400
350042566 NagisaF C1 Nov. 21, 2025, 9:26 a.m. OK Rust 2021 TESTS 9 46 0
350117904 Monster027 C1 Nov. 21, 2025, 7:17 p.m. OK Rust 2024 TESTS 9 46 0
350106665 owen-s C1 Nov. 21, 2025, 5:45 p.m. OK Rust 2024 TESTS 9 62 0
350003490 despair C1 Nov. 20, 2025, 11:56 p.m. OK Rust 2024 TESTS 9 62 0
350120218 _JG_ C1 Nov. 21, 2025, 7:38 p.m. OK Rust 2024 TESTS 9 92 0

remove filters

Back to search problems