Educational Codeforces Round 188 (Rated for Div. 2)

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ContestId
Name
Phase
Frozen
Duration (Seconds)
Relative Time
Start Time
2204 Educational Codeforces Round 188 (Rated for Div. 2) FINISHED False 8100 2733923 March 16, 2026, 2:35 p.m.

Problems

Solved
Index
Name
Type
Tags
Community Tag
Rating
( 4603 ) E Sum of Digits (and Again) PROGRAMMING brute force constructive algorithms math

For a positive (strictly greater than (0)) integer (x), the string (S(x)) is formed through the following process: initially, this string is empty; then, the decimal representation of the number (x) without leading zeros is appended to it on the right; after that, if (x \le 9), the process ends. Otherwise, (x) is replaced by the sum of the digits of (x), and the process returns to step (2); For example: (S(75)) is 75123 ; (S(30)) is 303 ; (S(9)) is 9 . You are given a string (s) consisting of digits. Your task is to rearrange the characters in this string so that it forms the string (S(x)) for some number (x). Removing characters and/or adding new characters is not allowed. If the given string (s) is already the string (S(x)) for some number (x), you may leave it unchanged. The first line contains one integer (t) ((1 \le t \le 10^4)) — the number of test cases. Each test case consists of one string containing (s) ((1 \le |s| \le 10^5)) — a sequence of digits. Additional constraints on the input: the sum of lengths of (s) over all test cases does not exceed (10^5); it is possible to rearrange the digits in (s) to obtain (S(x)) for some positive integer (x). For each test case, output one string — (s) after rearranging the characters. If there are multiple valid answers, output any of them.

Tutorials

Educational Codeforces Round 188 Editorial

Submissions

Submission Id
Author(s)
Index
Submitted
Verdict
Language
Test Set
Tests Passed
Time taken (ms)
Memory Consumed (bytes)
Tags
Rating
367017909 Rushdi E March 16, 2026, 5:22 p.m. OK C# 10 TESTS 10 312 73523200
367020605 Divy_8745 E March 16, 2026, 5:51 p.m. OK C++17 (GCC 7-32) TESTS 10 31 0
367005467 professorik E March 16, 2026, 4:26 p.m. OK C++17 (GCC 7-32) TESTS 10 31 0
367003394 gjm2005 E March 16, 2026, 4:20 p.m. OK C++17 (GCC 7-32) TESTS 10 31 1331200
367019141 HI-TEN E March 16, 2026, 5:34 p.m. OK C++17 (GCC 7-32) TESTS 10 31 7270400
367059160 diesellin E March 17, 2026, 5:39 a.m. OK C++17 (GCC 7-32) TESTS 10 46 0
367042137 sorohue E March 17, 2026, 12:13 a.m. OK C++17 (GCC 7-32) TESTS 10 46 0
367011211 harwaniroy E March 16, 2026, 4:43 p.m. OK C++17 (GCC 7-32) TESTS 10 46 0
367009979 sahajoydeep467 E March 16, 2026, 4:39 p.m. OK C++17 (GCC 7-32) TESTS 10 46 0
367007308 soham_1817 E March 16, 2026, 4:31 p.m. OK C++17 (GCC 7-32) TESTS 10 46 0
367005462 bina E March 16, 2026, 4:26 p.m. OK C++17 (GCC 7-32) TESTS 10 46 0
367043737 youiaOO E March 17, 2026, 1:09 a.m. OK C++20 (GCC 13-64) TESTS 10 31 102400
367033520 X-PRO_008 E March 16, 2026, 8:55 p.m. OK C++20 (GCC 13-64) TESTS 10 31 102400
367007373 erichung0906 E March 16, 2026, 4:31 p.m. OK C++20 (GCC 13-64) TESTS 10 31 102400
367012056 rakkoon69 E March 16, 2026, 4:46 p.m. OK C++20 (GCC 13-64) TESTS 10 31 4096000
367046938 wwwytz E March 17, 2026, 2:59 a.m. OK C++20 (GCC 13-64) TESTS 10 46 0
367014984 l_yzzz E March 16, 2026, 4:58 p.m. OK C++20 (GCC 13-64) TESTS 10 46 0
367013137 dhruvv_7 E March 16, 2026, 4:49 p.m. OK C++20 (GCC 13-64) TESTS 10 46 0
367012942 Shadowmire E March 16, 2026, 4:48 p.m. OK C++20 (GCC 13-64) TESTS 10 46 0
367011910 voinchuguna E March 16, 2026, 4:45 p.m. OK C++20 (GCC 13-64) TESTS 10 46 0
367009873 xyzCoder0123 E March 16, 2026, 4:39 p.m. OK C++20 (GCC 13-64) TESTS 10 46 0
367044550 chp20030623 E March 17, 2026, 1:36 a.m. OK C++23 (GCC 14-64, msys2) TESTS 10 31 0
367017085 Lilithlover545484 E March 16, 2026, 5:16 p.m. OK C++23 (GCC 14-64, msys2) TESTS 10 31 0
367015546 NotlosingUNC E March 16, 2026, 5:02 p.m. OK C++23 (GCC 14-64, msys2) TESTS 10 31 0
367004756 -zura- E March 16, 2026, 4:24 p.m. OK C++23 (GCC 14-64, msys2) TESTS 10 31 0
367003443 Kev1511 E March 16, 2026, 4:20 p.m. OK C++23 (GCC 14-64, msys2) TESTS 10 31 0
367003416 dominator2.00 E March 16, 2026, 4:20 p.m. OK C++23 (GCC 14-64, msys2) TESTS 10 31 0
367001485 SegFault404 E March 16, 2026, 4:15 p.m. OK C++23 (GCC 14-64, msys2) TESTS 10 31 0
366999807 madamadam E March 16, 2026, 4:10 p.m. OK C++23 (GCC 14-64, msys2) TESTS 10 31 0
367055153 Deviul E March 17, 2026, 4:54 a.m. OK C++23 (GCC 14-64, msys2) TESTS 10 31 102400
367035812 Arnav_Singhal1 E March 16, 2026, 9:40 p.m. OK C++23 (GCC 14-64, msys2) TESTS 10 31 102400
367003635 Gassa E March 16, 2026, 4:20 p.m. OK D TESTS 10 656 3174400
367027384 ruban E March 16, 2026, 7:36 p.m. OK FPC TESTS 10 109 67379200
367029339 1435730 E March 16, 2026, 8:02 p.m. OK GNU C11 TESTS 10 31 102400
367056743 actualtsg E March 17, 2026, 5:13 a.m. OK GNU C11 TESTS 10 109 120320000
367016186 actualtsg E March 16, 2026, 5:07 p.m. OK GNU C11 TESTS 10 125 108339200
367048469 actualtsg E March 17, 2026, 3:25 a.m. OK GNU C11 TESTS 10 125 120320000
367008005 Amisha_JIndal E March 16, 2026, 4:33 p.m. OK GNU C11 TESTS 10 421 102400
367005300 Gaurav_Malakar E March 16, 2026, 4:25 p.m. OK Java 21 TESTS 10 171 819200
367008591 ysd2004 E March 16, 2026, 4:35 p.m. OK Java 21 TESTS 10 187 819200
367013447 uttaran_das E March 16, 2026, 4:49 p.m. OK Java 21 TESTS 10 203 1331200
367001805 kartik__sethi E March 16, 2026, 4:16 p.m. OK Java 21 TESTS 10 218 307200
367000814 Bicky_verma077 E March 16, 2026, 4:13 p.m. OK Java 21 TESTS 10 234 409600
367006934 Thanmai_19 E March 16, 2026, 4:30 p.m. OK Java 21 TESTS 10 234 614400
367027562 salieriii E March 16, 2026, 7:39 p.m. OK Java 21 TESTS 10 234 716800
367001288 pieande E March 16, 2026, 4:14 p.m. OK Java 21 TESTS 10 250 614400
367032677 hg_2005 E March 16, 2026, 8:40 p.m. OK Java 21 TESTS 10 265 819200
367046673 kartik__sethi E March 17, 2026, 2:52 a.m. OK Java 21 TESTS 10 265 1228800
367001705 yashbansal99 E March 16, 2026, 4:15 p.m. OK Java 8 TESTS 10 203 0
367010357 abhi... E March 16, 2026, 4:40 p.m. OK Java 8 TESTS 10 218 0
367000894 niharikas18 E March 16, 2026, 4:13 p.m. OK Java 8 TESTS 10 234 0
367000965 public-static-void-main E March 16, 2026, 4:13 p.m. OK Java 8 TESTS 10 421 17510400
367013190 yg.margo E March 16, 2026, 4:49 p.m. OK Kotlin 2.2 TESTS 10 125 24166400
367007195 nullbrain_ E March 16, 2026, 4:31 p.m. OK Kotlin 2.2 TESTS 10 140 0
367027962 roman.yakhimovich E March 16, 2026, 7:44 p.m. OK Kotlin 2.2 TESTS 10 234 24166400
366999972 kakkadhimani E March 16, 2026, 4:11 p.m. OK PyPy 3 TESTS 10 375 8294400
367002589 agloriousnoob E March 16, 2026, 4:18 p.m. OK PyPy 3-64 TESTS 10 93 5324800
366999905 Tooth-Less E March 16, 2026, 4:10 p.m. OK PyPy 3-64 TESTS 10 125 5836800
367002334 realclueless E March 16, 2026, 4:17 p.m. OK PyPy 3-64 TESTS 10 156 6656000
366999966 xX52MUXAUL_XYECOC52Xx E March 16, 2026, 4:10 p.m. OK PyPy 3-64 TESTS 10 156 7475200
367016884 mnkp E March 16, 2026, 5:14 p.m. OK PyPy 3-64 TESTS 10 156 19763200
367045414 -nameless- E March 17, 2026, 2:07 a.m. OK PyPy 3-64 TESTS 10 171 135168000
367015464 0.0 E March 16, 2026, 5:01 p.m. OK PyPy 3-64 TESTS 10 187 7168000
367043007 fatalerror E March 17, 2026, 12:42 a.m. OK PyPy 3-64 TESTS 10 187 8192000
367001339 seeforty4040 E March 16, 2026, 4:14 p.m. OK PyPy 3-64 TESTS 10 203 4300800
367000405 EgeeReyZee E March 16, 2026, 4:12 p.m. OK PyPy 3-64 TESTS 10 203 11673600
367048781 Rustin_ E March 17, 2026, 3:29 a.m. OK Python 2 TESTS 10 328 0
367000454 nikiitsme E March 16, 2026, 4:12 p.m. OK Python 3 TESTS 10 187 1843200
367001719 CompScientist E March 16, 2026, 4:15 p.m. OK Python 3 TESTS 10 218 1740800
367004697 FerryMan27 E March 16, 2026, 4:23 p.m. OK Python 3 TESTS 10 250 6963200
367017702 Uttam_Masuram E March 16, 2026, 5:21 p.m. OK Python 3 TESTS 10 265 1843200
367006908 rich_chanel E March 16, 2026, 4:30 p.m. OK Python 3 TESTS 10 562 2662400
367006884 manimohamed E March 16, 2026, 4:30 p.m. OK Python 3 TESTS 10 578 7987200
367009709 pseudo404 E March 16, 2026, 4:38 p.m. OK Python 3 TESTS 10 609 2150400
367017876 alevtinka TarasovE E March 16, 2026, 5:22 p.m. OK Python 3 TESTS 10 1171 921600
367003515 mo0307b1006 E March 16, 2026, 4:20 p.m. OK Rust 2024 TESTS 10 46 11673600
367004968 Shr1mp_ E March 16, 2026, 4:24 p.m. OK Rust 2024 TESTS 10 78 11776000
367002718 Ravnik E March 16, 2026, 4:18 p.m. OK Rust 2024 TESTS 10 93 0

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