Educational Codeforces Round 181 (Rated for Div. 2)

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
2125 Educational Codeforces Round 181 (Rated for Div. 2) FINISHED False 7200 23210723 July 22, 2025, 2:35 p.m.

Problems

Solved
Index
Name
Type
Tags
Community Tag
Rating
( 27869 ) A Difficult Contest PROGRAMMING constructive algorithms implementation sortings strings

It is known that a contest can be represented by a string (s), consisting of uppercase Latin letters that denote problems. It is also known that a contest is difficult if it contains " FFT " or " NTT " as a contiguous substring. Your task is to rearrange the problem in contest (s) in such a way that this contest is not difficult. If the initial contest is not difficult, you may leave it as it is. Each test consists of several test cases. The first line contains a single integer (t) ((1 \le t \le 10^{4})) — the number of test cases. The description of the test cases follows. The only line of each test case contains (s) ((1 \le |s| \le 2 \cdot 10^{5})). Additional constraints on the input data: the total length of strings across all test cases does not exceed (2 \cdot 10^{5}). For each test case, output a string — a non-difficult contest that was obtained from (s) by rearranging the letters. If there are multiple correct answers, you may output any. It can be shown that at least one correct answer always exists.

Tutorials

Educational Codeforces Round 181 Editorial

Submissions

Submission Id
Author(s)
Index
Submitted
Verdict
Language
Test Set
Tests Passed
Time taken (ms)
Memory Consumed (bytes)
Tags
Rating
330454903 stronglion64 A July 23, 2025, 3:55 a.m. OK C# 10 TESTS 5 171 6451200
330460317 User0009 A July 23, 2025, 5:04 a.m. OK C# 10 TESTS 5 296 1024000
330417053 FrontierAlchemist A July 22, 2025, 6:26 p.m. OK C# 13 TESTS 5 139 1945600
330400416 mahiramani0302 A July 22, 2025, 4:29 p.m. OK C++17 (GCC 7-32) TESTS 5 30 0
330429585 avee12x2 A July 22, 2025, 9:06 p.m. OK C++17 (GCC 7-32) TESTS 5 31 0
330438156 AdSaw05_ A July 23, 2025, 12:34 a.m. OK C++17 (GCC 7-32) TESTS 5 31 0
330431842 horizeen A July 22, 2025, 9:49 p.m. OK C++17 (GCC 7-32) TESTS 5 31 0
330463467 Rajat31 A July 23, 2025, 5:39 a.m. OK C++17 (GCC 7-32) TESTS 5 46 0
330464911 AlfredGit A July 23, 2025, 5:55 a.m. OK C++17 (GCC 7-32) TESTS 5 46 0
330464605 siddh1060 A July 23, 2025, 5:51 a.m. OK C++17 (GCC 7-32) TESTS 5 46 0
330464599 Abel51 mkx2023275_ yyrwlj A July 23, 2025, 5:51 a.m. OK C++17 (GCC 7-32) TESTS 5 46 0
330464325 am1n_1602 A July 23, 2025, 5:48 a.m. OK C++17 (GCC 7-32) TESTS 5 46 0
330462940 Mayukh_71 A July 23, 2025, 5:34 a.m. OK C++17 (GCC 7-32) TESTS 5 46 0
330426757 dushyant_s28 A July 22, 2025, 8:21 p.m. OK C++20 (GCC 13-64) TESTS 5 31 0
330446253 DommeUse A July 23, 2025, 2:20 a.m. OK C++20 (GCC 13-64) TESTS 5 31 0
330446106 Kardonik A July 23, 2025, 2:18 a.m. OK C++20 (GCC 13-64) TESTS 5 31 0
330443343 jiely A July 23, 2025, 1:46 a.m. OK C++20 (GCC 13-64) TESTS 5 31 0
330441266 paidaxing_318 A July 23, 2025, 1:20 a.m. OK C++20 (GCC 13-64) TESTS 5 31 0
330422644 CiCaDa1101 A July 22, 2025, 7:29 p.m. OK C++20 (GCC 13-64) TESTS 5 31 0
330410362 alvmaury1 A July 22, 2025, 5:27 p.m. OK C++20 (GCC 13-64) TESTS 5 31 102400
330437872 zanj0 A July 23, 2025, 12:29 a.m. OK C++20 (GCC 13-64) TESTS 5 31 102400
330420951 ObadaGiorno A July 22, 2025, 7:07 p.m. OK C++20 (GCC 13-64) TESTS 5 31 102400
330464982 Ny0n A July 23, 2025, 5:55 a.m. OK C++20 (GCC 13-64) TESTS 5 46 0
330407537 HassanAdel0 A July 22, 2025, 5:04 p.m. OK C++23 (GCC 14-64, msys2) TESTS 5 30 102400
330404327 shanta20154 A July 22, 2025, 4:43 p.m. OK C++23 (GCC 14-64, msys2) TESTS 5 31 0
330465471 atharva24_ A July 23, 2025, 6 a.m. OK C++23 (GCC 14-64, msys2) TESTS 5 31 0
330441416 xy1022 A July 23, 2025, 1:22 a.m. OK C++23 (GCC 14-64, msys2) TESTS 5 31 0
330429159 Ronak122 A July 22, 2025, 8:59 p.m. OK C++23 (GCC 14-64, msys2) TESTS 5 31 0
330408021 Abhinaysai16 A July 22, 2025, 5:08 p.m. OK C++23 (GCC 14-64, msys2) TESTS 5 31 0
330405741 Junayed_Ahmed_Joy A July 22, 2025, 4:52 p.m. OK C++23 (GCC 14-64, msys2) TESTS 5 31 0
330464578 MateiKing80 A July 23, 2025, 5:51 a.m. OK C++23 (GCC 14-64, msys2) TESTS 5 46 0
330464664 kurkure_momos A July 23, 2025, 5:52 a.m. OK C++23 (GCC 14-64, msys2) TESTS 5 46 0
330464369 ZenithT A July 23, 2025, 5:49 a.m. OK C++23 (GCC 14-64, msys2) TESTS 5 46 0
330432296 bluemegane A July 22, 2025, 9:58 p.m. OK C# 8 TESTS 5 109 2252800
330394952 adityar_101 A July 22, 2025, 4:15 p.m. OK GNU C11 TESTS 5 46 204800
330397433 vikramreddy67 A July 22, 2025, 4:21 p.m. OK GNU C11 TESTS 5 62 512000
330416595 monish1406 A July 22, 2025, 6:22 p.m. OK GNU C11 TESTS 5 77 512000
330402685 242jiangzhengquan1 A July 22, 2025, 4:34 p.m. OK GNU C11 TESTS 5 749 204800
330394345 yi100887 A July 22, 2025, 4:13 p.m. OK GNU C11 TESTS 5 796 204800
330410820 AzizulHakim537 A July 22, 2025, 5:31 p.m. OK GNU C11 TESTS 5 1358 307200
330409067 Rafid230041141 A July 22, 2025, 5:16 p.m. OK GNU C11 TESTS 5 1436 307200
330413136 xhgybbybz A July 22, 2025, 5:51 p.m. OK Go TESTS 5 61 2048000
330413892 Jai_Yadav_ A July 22, 2025, 5:58 p.m. OK Java 21 TESTS 5 217 512000
330458874 ikiku A July 23, 2025, 4:46 a.m. OK Java 21 TESTS 5 218 819200
330419712 Aryan901 A July 22, 2025, 6:53 p.m. OK Java 21 TESTS 5 218 819200
330409128 kaifkhan. A July 22, 2025, 5:17 p.m. OK Java 21 TESTS 5 218 819200
330405437 mustansirhy A July 22, 2025, 4:49 p.m. OK Java 21 TESTS 5 233 307200
330394068 atharvavy2445 A July 22, 2025, 4:12 p.m. OK Java 21 TESTS 5 233 819200
330430740 bomakhamchha A July 22, 2025, 9:26 p.m. OK Java 21 TESTS 5 234 102400
330402980 Mechdeta A July 22, 2025, 4:34 p.m. OK Java 21 TESTS 5 234 204800
330394595 Kareem_Hegazy A July 22, 2025, 4:14 p.m. OK Java 21 TESTS 5 234 204800
330397175 sriramsrivatsan2001 A July 22, 2025, 4:21 p.m. OK Java 21 TESTS 5 234 409600
330403623 sarthaKKharKa_18 A July 22, 2025, 4:39 p.m. OK Java 8 TESTS 5 155 0
330397453 Hrituja A July 22, 2025, 4:21 p.m. OK Java 8 TESTS 5 156 0
330464355 Nezuko_chan_zenitsu A July 23, 2025, 5:49 a.m. OK Java 8 TESTS 5 171 0
330457280 Rishabh_Sengar1 A July 23, 2025, 4:25 a.m. OK Java 8 TESTS 5 202 0
330446937 sadgirpooja20 A July 23, 2025, 2:29 a.m. OK Java 8 TESTS 5 202 0
330422714 Ishaan__23 A July 22, 2025, 7:30 p.m. OK Java 8 TESTS 5 202 0
330418466 Kaikondar A July 22, 2025, 6:40 p.m. OK Java 8 TESTS 5 202 0
330408686 nakull A July 22, 2025, 5:13 p.m. OK Java 8 TESTS 5 202 0
330407324 pranav__muj A July 22, 2025, 5:02 p.m. OK Java 8 TESTS 5 202 0
330415160 Rajdweep A July 22, 2025, 6:08 p.m. OK Java 8 TESTS 5 203 0
330396434 RYRYRYRY A July 22, 2025, 4:19 p.m. OK Kotlin 1.9 TESTS 5 156 0
330415055 L-S-S A July 22, 2025, 6:07 p.m. OK Kotlin 1.9 TESTS 5 218 409600
330418086 nishant745618 A July 22, 2025, 6:36 p.m. OK PyPy 3 TESTS 5 171 7270400
330407438 ShritiNegi A July 22, 2025, 5:03 p.m. OK PyPy 3 TESTS 5 218 7270400
330419377 thinkphp A July 22, 2025, 6:50 p.m. OK PyPy 3 TESTS 5 218 8601600
330442164 ss250402855_Arman A July 23, 2025, 1:31 a.m. OK PyPy 3 TESTS 5 218 8704000
330443643 ss250404909 A July 23, 2025, 1:49 a.m. OK PyPy 3 TESTS 5 233 8806400
330412305 Plankboard A July 22, 2025, 5:44 p.m. OK PyPy 3 TESTS 5 234 8499200
330442548 Just4Serious A July 23, 2025, 1:36 a.m. OK PyPy 3 TESTS 5 249 8601600
330398093 n.ysslakshmi2001 A July 22, 2025, 4:23 p.m. OK PyPy 3 TESTS 5 249 11264000
330414868 MA_TT A July 22, 2025, 6:06 p.m. OK PyPy 3 TESTS 5 250 7168000
330434239 seifhafez45 A July 22, 2025, 10:50 p.m. OK PyPy 3 TESTS 5 265 11673600
330427831 hugoback01 A July 22, 2025, 8:37 p.m. OK PyPy 3-64 TESTS 5 108 8294400
330453072 Stephan A July 23, 2025, 3:34 a.m. OK PyPy 3-64 TESTS 5 109 13721600
330399525 sushmanth.dampur8780 A July 22, 2025, 4:27 p.m. OK PyPy 3-64 TESTS 5 109 14540800
330420384 igennova001 A July 22, 2025, 7:01 p.m. OK PyPy 3-64 TESTS 5 124 3686400
330406750 hugosebas A July 22, 2025, 4:58 p.m. OK PyPy 3-64 TESTS 5 124 12492800
330460451 aayrron04 A July 23, 2025, 5:05 a.m. OK PyPy 3-64 TESTS 5 124 12697600
330440360 yashu_math A July 23, 2025, 1:08 a.m. OK PyPy 3-64 TESTS 5 124 12697600
330421431 Jay_M_2421 A July 22, 2025, 7:13 p.m. OK PyPy 3-64 TESTS 5 124 12697600
330421408 Anos2421 A July 22, 2025, 7:13 p.m. OK PyPy 3-64 TESTS 5 124 12697600
330418247 PixelPotato A July 22, 2025, 6:38 p.m. OK PyPy 3-64 TESTS 5 124 12697600
330399169 DarthRevan1729 A July 22, 2025, 4:26 p.m. OK Python 3 TESTS 5 92 4710400
330394603 coderaditya A July 22, 2025, 4:14 p.m. OK Python 3 TESTS 5 93 716800
330445991 haulg3 A July 23, 2025, 2:17 a.m. OK Python 3 TESTS 5 93 819200
330399084 ivan04252008 A July 22, 2025, 4:26 p.m. OK Python 3 TESTS 5 93 2048000
330416551 bhunia A July 22, 2025, 6:21 p.m. OK Python 3 TESTS 5 93 2150400
330462225 gayathrip A July 23, 2025, 5:25 a.m. OK Python 3 TESTS 5 93 2457600
330407141 trojan_8708 A July 22, 2025, 5:01 p.m. OK Python 3 TESTS 5 93 2560000
330399937 CreePhoenix A July 22, 2025, 4:28 p.m. OK Python 3 TESTS 5 93 2560000
330398498 tanishasingh7 A July 22, 2025, 4:24 p.m. OK Python 3 TESTS 5 93 2560000
330416711 heymegzz A July 22, 2025, 6:23 p.m. OK Python 3 TESTS 5 93 2662400
330450716 Spheniscine A July 23, 2025, 3:09 a.m. OK Rust 2021 TESTS 5 46 0
330422276 magickow A July 22, 2025, 7:24 p.m. OK Rust 2021 TESTS 5 46 0

remove filters

Back to search problems