Codeforces Round 836 (Div. 2)

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ContestId
Name
Phase
Frozen
Duration (Seconds)
Relative Time
Start Time
1758 Codeforces Round 836 (Div. 2) FINISHED False 7200 67789463 Nov. 25, 2022, 3:35 p.m.

Problems

Solved$
Index
Name
Type
Tags
Community Tag
Rating
( 25508 ) A SSeeeeiinngg DDoouubbllee PROGRAMMING constructive algorithms strings

B'A palindrome is a string that reads the same backward as forward. For example, the strings texttt{z} , texttt{aaa} , texttt{aba} , and texttt{abccba} are palindromes, but texttt{codeforces} and texttt{ab} are not. The double of a string s is obtained by writing each character twice. For example, the double of texttt{seeing} is texttt{sseeeeiinngg} . Given a string s , rearrange its double to form a palindrome. Output the rearranged string. It can be proven that such a rearrangement always exists. The first line of input contains t ( 1 <= q t <= q 1000 ) -- the number of test cases. The only line of each test case contains a single string s ( 1 <= q |s| <= q 100 ) consisting only of lowercase English letters. Note that the sum of |s| over all test cases is not bounded. For each test case, output a palindromic string of length 2 cdot |s| that is a rearrangement of the double of s . In the first test case, the double of texttt{a} is texttt{aa} , which is already a palindrome. In the second test case, the double of texttt{sururu} is texttt{ssuurruurruu} . If we move the first texttt{s} to the end, we get texttt{suurruurruus} , which is a palindrome. In the third test case, the double of texttt{errorgorn} is texttt{eerrrroorrggoorrnn} . We can rearrange the characters to form texttt{rgnororerrerorongr} , which is a palindrome. '...

Tutorials

Codeforces Round #836 (Div. 2) Editorial

Submissions

Submission Id
Author(s)
Index
Submitted
Verdict
Language
Test Set
Tests Passed
Time taken (ms)
Memory Consumed (bytes)
Tags
Rating
182548336 WAAAAAAAAAAAAAAAAAAAAA A Nov. 25, 2022, 6:19 p.m. OK C# 10 TESTS 3 61 2867200
182581772 chrisfcoder A Nov. 26, 2022, 2:03 a.m. OK C# 10 TESTS 3 62 1536000
182564232 MoustafaAttia A Nov. 25, 2022, 8:08 p.m. OK C# 8 TESTS 3 62 1024000
182557563 FGN06 A Nov. 25, 2022, 7:13 p.m. OK C# 8 TESTS 3 77 1024000
182571604 bluemegane A Nov. 25, 2022, 9:42 p.m. OK C# 8 TESTS 3 108 3072000
182577212 big--head A Nov. 25, 2022, 11:49 p.m. OK Clang++17 Diagnostics TESTS 3 31 0
182591441 ramntry A Nov. 26, 2022, 4:43 a.m. OK Clang++17 Diagnostics TESTS 3 46 0
182581245 pyp A Nov. 26, 2022, 1:50 a.m. OK Clang++20 Diagnostics TESTS 3 202 12595200
182588497 Md._Asif_Samrat A Nov. 26, 2022, 4:08 a.m. OK GNU C11 TESTS 3 0 0
182537888 01Known A Nov. 25, 2022, 5:26 p.m. OK GNU C11 TESTS 3 15 0
182548177 PaMoJo A Nov. 25, 2022, 6:18 p.m. OK GNU C11 TESTS 3 15 0
182540470 zunaed4014 A Nov. 25, 2022, 5:32 p.m. OK GNU C11 TESTS 3 15 204800
182538326 Jahidul_CSE A Nov. 25, 2022, 5:27 p.m. OK GNU C11 TESTS 3 30 0
182537989 yeasermustabi20018 A Nov. 25, 2022, 5:26 p.m. OK GNU C11 TESTS 3 30 0
182546899 U4K_RYUGA A Nov. 25, 2022, 6:12 p.m. OK GNU C11 TESTS 3 30 0
182588440 BSMRSTU_Blackhole A Nov. 26, 2022, 4:07 a.m. OK GNU C11 TESTS 3 31 0
182582712 chenly666 A Nov. 26, 2022, 2:24 a.m. OK GNU C11 TESTS 3 31 0
182579201 Jahidul_CSE A Nov. 26, 2022, 1:01 a.m. OK GNU C11 TESTS 3 31 0
182593885 1722087564 A Nov. 26, 2022, 5:11 a.m. OK GNU C++14 TESTS 3 0 0
182583224 Aurora- A Nov. 26, 2022, 2:33 a.m. OK GNU C++14 TESTS 3 0 0
182577620 Arcan3 A Nov. 26, 2022, 12:05 a.m. OK GNU C++14 TESTS 3 0 0
182577425 juruowtcl A Nov. 25, 2022, 11:58 p.m. OK GNU C++14 TESTS 3 0 0
182566307 moaiad.abdulsalam A Nov. 25, 2022, 8:29 p.m. OK GNU C++14 TESTS 3 0 0
182555500 maruf74208 A Nov. 25, 2022, 6:59 p.m. OK GNU C++14 TESTS 3 0 0
182546801 __Errors__ A Nov. 25, 2022, 6:11 p.m. OK GNU C++14 TESTS 3 0 0
182545823 AleksaMaster A Nov. 25, 2022, 6:07 p.m. OK GNU C++14 TESTS 3 0 0
182594818 wust-zzl A Nov. 26, 2022, 5:21 a.m. OK GNU C++14 TESTS 3 0 0
182583824 Cycyes A Nov. 26, 2022, 2:45 a.m. OK GNU C++14 TESTS 3 0 102400
182584417 Kotoriqaq A Nov. 26, 2022, 2:57 a.m. OK GNU C++17 TESTS 3 0 0
182588544 AG__ A Nov. 26, 2022, 4:08 a.m. OK GNU C++17 TESTS 3 0 0
182588894 pict1115 A Nov. 26, 2022, 4:13 a.m. OK GNU C++17 TESTS 3 0 0
182592056 2000_AHS_sustswe18_72 A Nov. 26, 2022, 4:51 a.m. OK GNU C++17 TESTS 3 0 0
182594059 Haven_ A Nov. 26, 2022, 5:13 a.m. OK GNU C++17 TESTS 3 0 0
182594228 kiochi A Nov. 26, 2022, 5:14 a.m. OK GNU C++17 TESTS 3 0 0
182595616 fuwad A Nov. 26, 2022, 5:29 a.m. OK GNU C++17 TESTS 3 0 0
182597546 peanutbutter1 A Nov. 26, 2022, 5:49 a.m. OK GNU C++17 TESTS 3 0 0
182582773 xueque A Nov. 26, 2022, 2:25 a.m. OK GNU C++17 TESTS 3 0 0
182583343 ancorp A Nov. 26, 2022, 2:35 a.m. OK GNU C++17 TESTS 3 0 0
182587079 pursuit_of_happiness A Nov. 26, 2022, 3:45 a.m. OK GNU C++17 (64) TESTS 3 0 0
182598123 fexla A Nov. 26, 2022, 5:54 a.m. OK GNU C++17 (64) TESTS 3 0 0
182595945 WA_automata A Nov. 26, 2022, 5:32 a.m. OK GNU C++17 (64) TESTS 3 0 0
182587770 zhgdge A Nov. 26, 2022, 3:56 a.m. OK GNU C++17 (64) TESTS 3 0 0
182586461 Yash_Mehar A Nov. 26, 2022, 3:35 a.m. OK GNU C++17 (64) TESTS 3 0 0
182584443 hhh3 A Nov. 26, 2022, 2:58 a.m. OK GNU C++17 (64) TESTS 3 0 0
182582133 haengsyo A Nov. 26, 2022, 2:11 a.m. OK GNU C++17 (64) TESTS 3 0 0
182575144 vidhit_Patel A Nov. 25, 2022, 11:03 p.m. OK GNU C++17 (64) TESTS 3 0 0
182575125 Awesome3.14 A Nov. 25, 2022, 11:02 p.m. OK GNU C++17 (64) TESTS 3 0 0
182569363 MagedTarek A Nov. 25, 2022, 9:07 p.m. OK GNU C++17 (64) TESTS 3 0 0
182590813 enzopsm A Nov. 26, 2022, 4:36 a.m. OK GNU C++20 (64) TESTS 3 0 0
182591233 register2601 A Nov. 26, 2022, 4:41 a.m. OK GNU C++20 (64) TESTS 3 0 0
182592072 Sudo-Ku A Nov. 26, 2022, 4:51 a.m. OK GNU C++20 (64) TESTS 3 0 0
182592280 pei_pei_ A Nov. 26, 2022, 4:53 a.m. OK GNU C++20 (64) TESTS 3 0 0
182592359 106_and_1473 A Nov. 26, 2022, 4:54 a.m. OK GNU C++20 (64) TESTS 3 0 0
182594962 me_poojan23 A Nov. 26, 2022, 5:22 a.m. OK GNU C++20 (64) TESTS 3 0 0
182595132 vedant_1 A Nov. 26, 2022, 5:24 a.m. OK GNU C++20 (64) TESTS 3 0 0
182595394 chinh31503 A Nov. 26, 2022, 5:27 a.m. OK GNU C++20 (64) TESTS 3 0 0
182597885 xls_is_real_dd A Nov. 26, 2022, 5:52 a.m. OK GNU C++20 (64) TESTS 3 0 0
182597907 fishcathu. A Nov. 26, 2022, 5:52 a.m. OK GNU C++20 (64) TESTS 3 0 0
182578307 tongtongac A Nov. 26, 2022, 12:31 a.m. OK Go TESTS 3 15 614400
182579947 pepradere A Nov. 26, 2022, 1:21 a.m. OK Go TESTS 3 31 5017600
182592408 __Serendipity A Nov. 26, 2022, 4:55 a.m. OK Java 11 TESTS 3 155 0
182551321 fishy15 A Nov. 25, 2022, 6:34 p.m. OK Java 11 TESTS 3 155 0
182588326 mmustafoyev9 A Nov. 26, 2022, 4:05 a.m. OK Java 11 TESTS 3 171 0
182593783 davronbekabdulkhamidov A Nov. 26, 2022, 5:10 a.m. OK Java 11 TESTS 3 171 0
182588504 gol1bjon A Nov. 26, 2022, 4:08 a.m. OK Java 11 TESTS 3 171 0
182578193 mcrash12 A Nov. 26, 2022, 12:26 a.m. OK Java 11 TESTS 3 171 0
182551081 praduman14 A Nov. 25, 2022, 6:33 p.m. OK Java 11 TESTS 3 187 0
182551608 ilasiawo A Nov. 25, 2022, 6:36 p.m. OK Java 11 TESTS 3 187 0
182547388 Ahmed_Amine A Nov. 25, 2022, 6:14 p.m. OK Java 11 TESTS 3 187 0
182588621 kartik_941 A Nov. 26, 2022, 4:09 a.m. OK Java 11 TESTS 3 202 0
182533011 woodyiiiiiii A Nov. 25, 2022, 5:14 p.m. OK Java 17 TESTS 3 187 0
182594270 irachit0702 A Nov. 26, 2022, 5:15 a.m. OK Java 17 TESTS 3 187 307200
182560025 snEAky_C A Nov. 25, 2022, 7:31 p.m. OK Java 17 TESTS 3 187 409600
182549613 balajirudrawar123 A Nov. 25, 2022, 6:25 p.m. OK Java 17 TESTS 3 187 409600
182580956 -Jarvis- A Nov. 26, 2022, 1:44 a.m. OK Java 17 TESTS 3 202 307200
182584879 JoseDavid A Nov. 26, 2022, 3:06 a.m. OK Java 17 TESTS 3 218 512000
182596343 Jay_17 A Nov. 26, 2022, 5:37 a.m. OK Java 17 TESTS 3 233 0
182559043 Saksham0109 A Nov. 25, 2022, 7:24 p.m. OK Java 17 TESTS 3 233 0
182536206 Vertigo_507 A Nov. 25, 2022, 5:22 p.m. OK Java 17 TESTS 3 233 307200
182550417 Eslam_Ahmed A Nov. 25, 2022, 6:29 p.m. OK Java 17 TESTS 3 249 102400
182562840 Mohamed308 A Nov. 25, 2022, 7:55 p.m. OK Java 8 TESTS 3 77 0
182550329 Abdallah_Ragab00 A Nov. 25, 2022, 6:29 p.m. OK Java 8 TESTS 3 93 0
182550353 _NursultaN_ A Nov. 25, 2022, 6:29 p.m. OK Java 8 TESTS 3 108 0
182569541 ItsZaki A Nov. 25, 2022, 9:09 p.m. OK Java 8 TESTS 3 108 0
182545573 adeon A Nov. 25, 2022, 6:06 p.m. OK Java 8 TESTS 3 108 0
182569798 mohamedhassan_c A Nov. 25, 2022, 9:13 p.m. OK Java 8 TESTS 3 109 0
182546652 toufique_husein A Nov. 25, 2022, 6:11 p.m. OK Java 8 TESTS 3 109 0
182539525 rx513 A Nov. 25, 2022, 5:30 p.m. OK Java 8 TESTS 3 109 0
182584749 wty-Bryant A Nov. 26, 2022, 3:04 a.m. OK Java 8 TESTS 3 140 0
182596082 Yeleke A Nov. 26, 2022, 5:34 a.m. OK Java 8 TESTS 3 140 0
182566629 Krantzy A Nov. 25, 2022, 8:33 p.m. OK Kotlin 1.7 TESTS 3 404 9523200
182557737 aRaha_0_0 A Nov. 25, 2022, 7:14 p.m. OK Mono C# TESTS 3 311 204800
182546838 MausitoPro A Nov. 25, 2022, 6:11 p.m. OK MS C++ 2017 TESTS 3 15 307200
182547784 Danbbler A Nov. 25, 2022, 6:16 p.m. OK MS C++ 2017 TESTS 3 30 0
182577822 gkin A Nov. 26, 2022, 12:12 a.m. OK MS C++ 2017 TESTS 3 31 0
182553606 abdulkader_haffar A Nov. 25, 2022, 6:47 p.m. OK MS C++ 2017 TESTS 3 31 0
182547621 rsFalse A Nov. 25, 2022, 6:15 p.m. OK Perl TESTS 3 15 0
182549247 rsFalse A Nov. 25, 2022, 6:23 p.m. OK Perl TESTS 3 15 0
182556644 Justin_Foley A Nov. 25, 2022, 7:07 p.m. OK PyPy 3 TESTS 3 93 3174400
182569818 WalrusRamen21 A Nov. 25, 2022, 9:13 p.m. OK PyPy 3 TESTS 3 108 1945600
182554449 jaytau A Nov. 25, 2022, 6:52 p.m. OK PyPy 3 TESTS 3 108 3276800
182551219 manish.17 A Nov. 25, 2022, 6:33 p.m. OK PyPy 3 TESTS 3 108 3276800
182546556 torqueaj A Nov. 25, 2022, 6:10 p.m. OK PyPy 3 TESTS 3 124 3276800
182569779 uz2ee A Nov. 25, 2022, 9:13 p.m. OK PyPy 3 TESTS 3 139 3276800
182586312 Ench_Lolz A Nov. 26, 2022, 3:32 a.m. OK PyPy 3 TESTS 3 140 3276800
182583007 __J__ A Nov. 26, 2022, 2:29 a.m. OK PyPy 3 TESTS 3 140 3276800
182569630 WalrusRamen21 A Nov. 25, 2022, 9:10 p.m. OK PyPy 3 TESTS 3 140 3276800
182545565 WHg00 A Nov. 25, 2022, 6:06 p.m. OK PyPy 3 TESTS 3 140 3276800
182532280 titia A Nov. 25, 2022, 5:12 p.m. OK PyPy 3-64 TESTS 3 62 1945600
182549795 hkwu6013 A Nov. 25, 2022, 6:26 p.m. OK PyPy 3-64 TESTS 3 62 2048000
182570265 SeniorLikeToCode A Nov. 25, 2022, 9:20 p.m. OK PyPy 3-64 TESTS 3 77 1843200
182553838 m0tbka A Nov. 25, 2022, 6:48 p.m. OK PyPy 3-64 TESTS 3 77 1843200
182550024 Mohamed_yousef2024 A Nov. 25, 2022, 6:27 p.m. OK PyPy 3-64 TESTS 3 77 1843200
182552071 riroan A Nov. 25, 2022, 6:38 p.m. OK PyPy 3-64 TESTS 3 77 1945600
182577398 8by8 A Nov. 25, 2022, 11:57 p.m. OK PyPy 3-64 TESTS 3 77 2764800
182584020 wxl2118579805 A Nov. 26, 2022, 2:49 a.m. OK PyPy 3-64 TESTS 3 77 3481600
182585942 The_MazeRunner A Nov. 26, 2022, 3:26 a.m. OK PyPy 3-64 TESTS 3 77 4096000
182593165 shock_wav3 A Nov. 26, 2022, 5:03 a.m. OK PyPy 3-64 TESTS 3 77 4198400
182591686 Kirill_Kazantsev A Nov. 26, 2022, 4:46 a.m. OK Python 3 TESTS 3 30 0
182590616 Amaan330 A Nov. 26, 2022, 4:34 a.m. OK Python 3 TESTS 3 31 0
182584189 Tushar281 A Nov. 26, 2022, 2:52 a.m. OK Python 3 TESTS 3 31 0
182578139 mguliyev12360 A Nov. 26, 2022, 12:24 a.m. OK Python 3 TESTS 3 31 0
182577563 Ajay_kmr A Nov. 26, 2022, 12:03 a.m. OK Python 3 TESTS 3 31 0
182558340 MohaSa A Nov. 25, 2022, 7:19 p.m. OK Python 3 TESTS 3 31 0
182550770 IronMan_P0 A Nov. 25, 2022, 6:31 p.m. OK Python 3 TESTS 3 31 0
182546260 Bispo A Nov. 25, 2022, 6:09 p.m. OK Python 3 TESTS 3 31 0
182593836 The_Grateful_Death A Nov. 26, 2022, 5:10 a.m. OK Python 3 TESTS 3 46 0
182593128 kshqsz A Nov. 26, 2022, 5:03 a.m. OK Python 3 TESTS 3 46 0
182572933 SuperMatej999 A Nov. 25, 2022, 10:08 p.m. OK Rust 2021 TESTS 3 31 0

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