Codeforces Round 712 (Div. 2)

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ContestId
Name
Phase
Frozen
Duration (Seconds)
Relative Time
Start Time
1504 Codeforces Round 712 (Div. 2) FINISHED False 8100 119719463 April 3, 2021, 2:35 p.m.

Problems

Solved$
Index
Name
Type
Tags
Community Tag
Rating
( 21881 ) A Déjà Vu PROGRAMMING constructive algorithms strings 800

B'A palindrome is a string that reads the same backward as forward. For example, the strings "z", "aaa", "aba", and "abccba" are palindromes, but "codeforces" and "ab" are not. You hate palindromes because they give you d xc3 xa9j xc3 xa0 vu. There is a string s . You must insert exactly one character 'a ' somewhere in s . If it is possible to create a string that is not a palindrome, you should find one example. Otherwise, you should report that it is impossible. For example, suppose s= "cbabc". By inserting an 'a ', you can create "acbabc", "cababc", "cbaabc", "cbabac", or "cbabca". However "cbaabc" is a palindrome, so you must output one of the other options. The first line contains a single integer t ( 1 <= t <= 10^4 ) -- the number of test cases. The only line of each test case contains a string s consisting of lowercase English letters. The total length of all strings does not exceed 3 cdot 10^5 . For each test case, if there is no solution, output "NO". Otherwise, output "YES" followed by your constructed string of length |s|+1 on the next line. If there are multiple solutions, you may print any. You can print each letter of "YES" and "NO" in any case (upper or lower). The first test case is described in the statement. In the second test case, we can make either "aab" or "aba". But "aba" is a palindrome, so "aab" is the only correct answer. In the third test case, "zaza" and "zzaa" are correct answers, but not "azza". In the fourth test case, "baa" is the only correct answer. In the fifth test case, we can only make "aa", which is a palindrome. So the answer is "NO". In the sixth test case, "anutforajaroftuna" is a palindrome, but inserting 'a ' elsewhere is valid. '...

Tutorials

Codeforces Round #712 Editorial

Submissions

Submission Id
Author(s)
Index
Submitted
Verdict
Language
Test Set
Tests Passed
Time taken (ms)
Memory Consumed (bytes)
Tags
Rating
111959842 luminousdeer A April 4, 2021, 2:06 a.m. OK GNU C11 TESTS 33 93 614400 800
111942986 old_soul A April 3, 2021, 6:08 p.m. OK GNU C11 TESTS 33 109 307200 800
111962878 nishant_89 A April 4, 2021, 3:34 a.m. OK GNU C11 TESTS 33 109 921600 800
111964243 MVG_27 A April 4, 2021, 4:06 a.m. OK GNU C11 TESTS 33 499 307200 800
111957653 luogu_bot5 A April 4, 2021, 12:30 a.m. OK GNU C++11 TESTS 33 30 102400 800
111965177 feicheng_ A April 4, 2021, 4:33 a.m. OK GNU C++11 TESTS 33 30 4505600 800
111942374 Darko1227 A April 3, 2021, 6:02 p.m. OK GNU C++11 TESTS 33 31 102400 800
111958758 R7012S A April 4, 2021, 1:23 a.m. OK GNU C++11 TESTS 33 31 307200 800
111958499 rui_er A April 4, 2021, 1:11 a.m. OK GNU C++11 TESTS 33 31 307200 800
111958188 Daniel_Jiang A April 4, 2021, 12:58 a.m. OK GNU C++11 TESTS 33 31 307200 800
111959245 invaded A April 4, 2021, 1:46 a.m. OK GNU C++11 TESTS 33 31 307200 800
111959891 fishcathu. A April 4, 2021, 2:07 a.m. OK GNU C++11 TESTS 33 31 307200 800
111962421 BlankAoz A April 4, 2021, 3:23 a.m. OK GNU C++11 TESTS 33 31 307200 800
111969547 Pe.Ph A April 4, 2021, 5:58 a.m. OK GNU C++11 TESTS 33 31 307200 800
111959778 Myzc A April 4, 2021, 2:04 a.m. OK GNU C++14 TESTS 33 31 307200 800
111961207 AdityaPandey A April 4, 2021, 2:49 a.m. OK GNU C++14 TESTS 33 31 1024000 800
111960428 I_francis A April 4, 2021, 2:27 a.m. OK GNU C++14 TESTS 33 31 1024000 800
111957949 diegoZarate A April 4, 2021, 12:44 a.m. OK GNU C++14 TESTS 33 31 1024000 800
111957144 KKRpro A April 4, 2021, 12:02 a.m. OK GNU C++14 TESTS 33 31 1024000 800
111950447 Genedy97 A April 3, 2021, 8:13 p.m. OK GNU C++14 TESTS 33 31 1024000 800
111961779 Newplayers12 A April 4, 2021, 3:05 a.m. OK GNU C++14 TESTS 33 31 1024000 800
111965559 kk2_agnihotri A April 4, 2021, 4:44 a.m. OK GNU C++14 TESTS 33 31 1024000 800
111965369 challenger_hardik_08 A April 4, 2021, 4:40 a.m. OK GNU C++14 TESTS 33 31 1024000 800
111962243 toshant_n A April 4, 2021, 3:18 a.m. OK GNU C++14 TESTS 33 31 1024000 800
111960354 codrac A April 4, 2021, 2:24 a.m. OK GNU C++17 TESTS 33 30 1945600 800
111961750 lijiatu A April 4, 2021, 3:05 a.m. OK GNU C++17 TESTS 33 31 307200 800
111961734 shssip__zsy A April 4, 2021, 3:04 a.m. OK GNU C++17 TESTS 33 31 307200 800
111940475 cakewalk_nahi_hota A April 3, 2021, 5:45 p.m. OK GNU C++17 TESTS 33 31 307200 800
111968806 rheallyc A April 4, 2021, 5:47 a.m. OK GNU C++17 TESTS 33 31 614400 800
111969978 th_rahulthorat A April 4, 2021, 6:04 a.m. OK GNU C++17 TESTS 33 31 1024000 800
111967943 bhawesh7 A April 4, 2021, 5:33 a.m. OK GNU C++17 TESTS 33 31 1024000 800
111968630 _Shanto A April 4, 2021, 5:44 a.m. OK GNU C++17 TESTS 33 31 1024000 800
111968730 akshat_coder12 A April 4, 2021, 5:46 a.m. OK GNU C++17 TESTS 33 31 1024000 800
111969070 GotuZeno A April 4, 2021, 5:51 a.m. OK GNU C++17 TESTS 33 31 1024000 800
111928356 prashant__ranjan A April 3, 2021, 4:24 p.m. OK GNU C++17 (64) TESTS 33 15 1024000 800
111945750 DARK49 A April 3, 2021, 6:41 p.m. OK GNU C++17 (64) TESTS 33 30 1945600 800
111969553 alif_cse_ju A April 4, 2021, 5:58 a.m. OK GNU C++17 (64) TESTS 33 31 307200 800
111927625 cright A April 3, 2021, 4:22 p.m. OK GNU C++17 (64) TESTS 33 31 307200 800
111950363 ecnerwala A April 3, 2021, 8:11 p.m. OK GNU C++17 (64) TESTS 33 31 1024000 800
111968069 arnold27 A April 4, 2021, 5:35 a.m. OK GNU C++17 (64) TESTS 33 31 1024000 800
111956382 over_flow A April 3, 2021, 11:24 p.m. OK GNU C++17 (64) TESTS 33 31 1024000 800
111952547 praveenojha33 A April 3, 2021, 9:05 p.m. OK GNU C++17 (64) TESTS 33 31 1024000 800
111952413 Protik_7 A April 3, 2021, 9:01 p.m. OK GNU C++17 (64) TESTS 33 31 1024000 800
111952255 mohammad_reza A April 3, 2021, 8:57 p.m. OK GNU C++17 (64) TESTS 33 31 1024000 800
111954133 fc-lib-xyz A April 3, 2021, 9:51 p.m. OK Go TESTS 33 31 409600 800
111942416 codelegend A April 3, 2021, 6:02 p.m. OK Haskell TESTS 33 109 11571200 800
111952068 bittubittu A April 3, 2021, 8:52 p.m. OK Java 11 TESTS 33 187 0 800
111942018 ivanshubin A April 3, 2021, 5:58 p.m. OK Java 11 TESTS 33 187 0 800
111941612 RuthlessAggression A April 3, 2021, 5:55 p.m. OK Java 11 TESTS 33 187 0 800
111965543 monster1305 A April 4, 2021, 4:43 a.m. OK Java 11 TESTS 33 218 0 800
111970016 Sanju_250406 A April 4, 2021, 6:04 a.m. OK Java 11 TESTS 33 218 0 800
111951607 _merlin_ A April 3, 2021, 8:39 p.m. OK Java 11 TESTS 33 218 0 800
111943340 HastaLaVistaLa A April 3, 2021, 6:12 p.m. OK Java 11 TESTS 33 218 0 800
111941216 aquarius_gaurav A April 3, 2021, 5:51 p.m. OK Java 11 TESTS 33 218 0 800
111939386 anubhav44044 A April 3, 2021, 5:39 p.m. OK Java 11 TESTS 33 218 0 800
111950118 teenGraph A April 3, 2021, 8:06 p.m. OK Java 11 TESTS 33 233 0 800
111956765 PRIYANSH_TOMAR A April 3, 2021, 11:44 p.m. OK Java 8 TESTS 33 124 0 800
111953363 dynamo_001 A April 3, 2021, 9:26 p.m. OK Java 8 TESTS 33 124 0 800
111940375 gssakash A April 3, 2021, 5:45 p.m. OK Java 8 TESTS 33 124 0 800
111944574 InANutshell A April 3, 2021, 6:27 p.m. OK Java 8 TESTS 33 139 0 800
111954866 RonWonWon A April 3, 2021, 10:16 p.m. OK Java 8 TESTS 33 140 0 800
111950032 Dstoical A April 3, 2021, 8:04 p.m. OK Java 8 TESTS 33 140 0 800
111967508 toufique_husein A April 4, 2021, 5:25 a.m. OK Java 8 TESTS 33 171 0 800
111942279 KeshavAgarwal007 A April 3, 2021, 6:01 p.m. OK Java 8 TESTS 33 186 0 800
111943028 narayan.xrd A April 3, 2021, 6:09 p.m. OK Java 8 TESTS 33 187 0 800
111939983 amit_roy A April 3, 2021, 5:42 p.m. OK Java 8 TESTS 33 202 0 800
111960603 Ankar_kumar_saha A April 4, 2021, 2:32 a.m. OK JavaScript TESTS 33 124 12288000 800
111968905 zgw A April 4, 2021, 5:49 a.m. OK Kotlin TESTS 33 280 0 800
111947279 felix_vetsper A April 3, 2021, 7:04 p.m. OK Kotlin TESTS 33 295 0 800
111964420 e_ve A April 4, 2021, 4:10 a.m. OK MS C++ 2017 TESTS 33 46 1228800 800
111950601 mnrmustafa A April 3, 2021, 8:16 p.m. OK MS C++ 2017 TESTS 33 46 1228800 800
111962617 dingzhao777 A April 4, 2021, 3:28 a.m. OK MS C++ 2017 TESTS 33 62 512000 800
111943699 ArturoDiazZamudio A April 3, 2021, 6:16 p.m. OK MS C++ 2017 TESTS 33 77 1228800 800
111968637 Albertplus007 A April 4, 2021, 5:44 a.m. OK MS C++ 2017 TESTS 33 93 921600 800
111962748 Bulysky A April 4, 2021, 3:30 a.m. OK MS C++ 2017 TESTS 33 93 1126400 800
111939808 ustaritz A April 3, 2021, 5:41 p.m. OK MS C++ 2017 TESTS 33 93 1228800 800
111932417 khedia A April 3, 2021, 4:36 p.m. OK MS C++ 2017 TESTS 33 93 1228800 800
111933535 zkxshg A April 3, 2021, 4:39 p.m. OK MS C++ 2017 TESTS 33 93 1536000 800
111962042 XieJiaXuan A April 4, 2021, 3:12 a.m. OK MS C++ 2017 TESTS 33 108 921600 800
111954725 KibRia_BRUR_12 A April 3, 2021, 10:12 p.m. OK Node.js TESTS 33 311 20480000 800
111944171 beethoven97 A April 3, 2021, 6:22 p.m. OK PyPy 2 TESTS 33 233 11980800 800
111954711 pk31299 A April 3, 2021, 10:11 p.m. OK PyPy 3 TESTS 33 155 5427200 800
111944962 FlakeLCR A April 3, 2021, 6:31 p.m. OK PyPy 3 TESTS 33 171 6144000 800
111944542 Kelin A April 3, 2021, 6:26 p.m. OK PyPy 3 TESTS 33 171 7577600 800
111942496 codecunt7 A April 3, 2021, 6:03 p.m. OK PyPy 3 TESTS 33 171 7577600 800
111967344 halrybhalodia17 A April 4, 2021, 5:22 a.m. OK PyPy 3 TESTS 33 187 7987200 800
111942685 ksd_3 A April 3, 2021, 6:05 p.m. OK PyPy 3 TESTS 33 187 8396800 800
111962924 SaiPranav A April 4, 2021, 3:35 a.m. OK PyPy 3 TESTS 33 202 7782400 800
111942217 Kelin A April 3, 2021, 6 p.m. OK PyPy 3 TESTS 33 202 7884800 800
111968199 Leggasick A April 4, 2021, 5:37 a.m. OK PyPy 3 TESTS 33 202 8294400 800
111945123 SPD_9X2 A April 3, 2021, 6:33 p.m. OK PyPy 3 TESTS 33 202 8499200 800
111946225 skyscraper-60 A April 3, 2021, 6:47 p.m. OK Python 3 TESTS 33 93 1536000 800
111968755 DarkHeart861 A April 4, 2021, 5:46 a.m. OK Python 3 TESTS 33 93 1843200 800
111958006 Genius3435 A April 4, 2021, 12:47 a.m. OK Python 3 TESTS 33 93 1843200 800
111962295 eugalt A April 4, 2021, 3:19 a.m. OK Python 3 TESTS 33 93 2048000 800
111963219 eugalt A April 4, 2021, 3:42 a.m. OK Python 3 TESTS 33 108 2150400 800
111962850 eugalt A April 4, 2021, 3:33 a.m. OK Python 3 TESTS 33 108 2150400 800
111962509 eugalt A April 4, 2021, 3:25 a.m. OK Python 3 TESTS 33 109 1945600 800
111962054 eugalt A April 4, 2021, 3:12 a.m. OK Python 3 TESTS 33 109 1945600 800
111945785 deepansh09 A April 3, 2021, 6:42 p.m. OK Python 3 TESTS 33 109 1945600 800
111931931 agw02010 A April 3, 2021, 4:34 p.m. OK Python 3 TESTS 33 124 1740800 800

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