Educational Codeforces Round 187 (Rated for Div. 2)

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ContestId
Name
Phase
Frozen
Duration (Seconds)
Relative Time
Start Time
2203 Educational Codeforces Round 187 (Rated for Div. 2) FINISHED False 7200 4375523 Feb. 25, 2026, 2:35 p.m.

Problems

Solved
Index
Name
Type
Tags
Community Tag
Rating
( 13721 ) B Beautiful Numbers PROGRAMMING dp greedy math

Let's define (F(x)) as the sum of the digits of (x). An integer (x) is considered beautiful if (F(F(x)) = F(x)). You are given an integer (x). In one move, you can choose any digit in the number and replace it with another. The resulting number cannot have leading zeros. Your task is to calculate the minimum number of moves (possibly zero) required to make the given number beautiful. The first line contains a single integer (t) ((1 \le t \le 10^4)) — the number of test cases. The only line of each test case contains a single integer (x) ((1 \le x \le 10^{18})). For each test case, print a single integer — the minimum number of moves (possibly zero) required to make the given number beautiful. In the first example, the given number is already beautiful. In the second example, in one move, we can get the beautiful number (3\underline{3}) (the changed digit is underlined). In the third example, in two moves, we can get the beautiful number (\underline{1}4\underline{0}) (the changed digits are underlined).

Tutorials

Educational Codeforces Round 187 Editorial

Submissions

Submission Id
Author(s)
Index
Submitted
Verdict
Language
Test Set
Tests Passed
Time taken (ms)
Memory Consumed (bytes)
Tags
Rating
364433966 ya_hossein B Feb. 26, 2026, 5:52 a.m. OK C# 13 TESTS 5 78 13619200
364400877 nerian B Feb. 25, 2026, 8:21 p.m. OK C# 13 TESTS 5 109 2560000
364388922 Alexandr B Feb. 25, 2026, 6:04 p.m. OK C# 13 TESTS 5 109 3276800
364433357 ant_10 B Feb. 26, 2026, 5:46 a.m. OK C++17 (GCC 7-32) TESTS 5 15 0
364427208 s3rnois B Feb. 26, 2026, 4:25 a.m. OK C++17 (GCC 7-32) TESTS 5 31 0
364416968 donhuhai03062008 B Feb. 26, 2026, 1:58 a.m. OK C++17 (GCC 7-32) TESTS 5 31 0
364416787 lji3815 B Feb. 26, 2026, 1:54 a.m. OK C++17 (GCC 7-32) TESTS 5 31 0
364413637 stepheneleven B Feb. 26, 2026, 12:44 a.m. OK C++17 (GCC 7-32) TESTS 5 31 0
364412329 xcyxcyxcy B Feb. 26, 2026, 12:11 a.m. OK C++17 (GCC 7-32) TESTS 5 31 0
364412084 Tazbin-23 B Feb. 26, 2026, 12:04 a.m. OK C++17 (GCC 7-32) TESTS 5 31 0
364410478 Karyon B Feb. 25, 2026, 11:23 p.m. OK C++17 (GCC 7-32) TESTS 5 31 0
364409178 minezech B Feb. 25, 2026, 10:47 p.m. OK C++17 (GCC 7-32) TESTS 5 31 0
364409119 Barz B Feb. 25, 2026, 10:46 p.m. OK C++17 (GCC 7-32) TESTS 5 31 0
364375196 ZolpiE B Feb. 25, 2026, 4:30 p.m. OK C++20 (GCC 13-64) TESTS 5 15 102400
364434085 Harsha.J B Feb. 26, 2026, 5:54 a.m. OK C++20 (GCC 13-64) TESTS 5 31 0
364433975 Sanae B Feb. 26, 2026, 5:52 a.m. OK C++20 (GCC 13-64) TESTS 5 31 0
364433319 AsukaAlice B Feb. 26, 2026, 5:45 a.m. OK C++20 (GCC 13-64) TESTS 5 31 0
364433234 5oly B Feb. 26, 2026, 5:44 a.m. OK C++20 (GCC 13-64) TESTS 5 31 0
364431783 wakanda-forever B Feb. 26, 2026, 5:26 a.m. OK C++20 (GCC 13-64) TESTS 5 31 0
364430484 md_faruk09 B Feb. 26, 2026, 5:08 a.m. OK C++20 (GCC 13-64) TESTS 5 31 0
364429435 Amr_atif69 B Feb. 26, 2026, 4:55 a.m. OK C++20 (GCC 13-64) TESTS 5 31 0
364424709 CodeAns B Feb. 26, 2026, 3:57 a.m. OK C++20 (GCC 13-64) TESTS 5 31 0
364421462 guobohan B Feb. 26, 2026, 3:13 a.m. OK C++20 (GCC 13-64) TESTS 5 31 0
364433593 Udynamo B Feb. 26, 2026, 5:48 a.m. OK C++23 (GCC 14-64, msys2) TESTS 5 15 0
364426754 chen-xi B Feb. 26, 2026, 4:19 a.m. OK C++23 (GCC 14-64, msys2) TESTS 5 15 0
364426439 jackylova_fan_fan_fan B Feb. 26, 2026, 4:16 a.m. OK C++23 (GCC 14-64, msys2) TESTS 5 15 0
364409766 ItsLuka B Feb. 25, 2026, 11:04 p.m. OK C++23 (GCC 14-64, msys2) TESTS 5 15 0
364406936 sarz B Feb. 25, 2026, 9:54 p.m. OK C++23 (GCC 14-64, msys2) TESTS 5 15 0
364379675 Nobagoto B Feb. 25, 2026, 4:49 p.m. OK C++23 (GCC 14-64, msys2) TESTS 5 15 0
364378172 shashwat1511 B Feb. 25, 2026, 4:40 p.m. OK C++23 (GCC 14-64, msys2) TESTS 5 15 102400
364428798 3ssa B Feb. 26, 2026, 4:46 a.m. OK C++23 (GCC 14-64, msys2) TESTS 5 15 12185600
364433865 aloft_spell B Feb. 26, 2026, 5:51 a.m. OK C++23 (GCC 14-64, msys2) TESTS 5 15 16076800
364434763 Lorinder B Feb. 26, 2026, 6:01 a.m. OK C++23 (GCC 14-64, msys2) TESTS 5 31 0
364392446 priyanshu1scieck B Feb. 25, 2026, 6:37 p.m. OK GNU C11 TESTS 5 46 0
364371482 coder_seasoned B Feb. 25, 2026, 4:21 p.m. OK GNU C11 TESTS 5 46 0
364371028 ViniVici19 B Feb. 25, 2026, 4:20 p.m. OK GNU C11 TESTS 5 46 0
364374930 COMPETITIVE_KRISH B Feb. 25, 2026, 4:30 p.m. OK GNU C11 TESTS 5 62 0
364371156 Kartheeeeek B Feb. 25, 2026, 4:21 p.m. OK GNU C11 TESTS 5 62 0
364373623 ShreerajM B Feb. 25, 2026, 4:27 p.m. OK GNU C11 TESTS 5 62 819200
364387256 Ayush_Kumar_Sharma B Feb. 25, 2026, 5:48 p.m. OK GNU C11 TESTS 5 78 0
364373818 daksh_upreti B Feb. 25, 2026, 4:27 p.m. OK GNU C11 TESTS 5 78 0
364368197 rohit_shiva B Feb. 25, 2026, 4:13 p.m. OK GNU C11 TESTS 5 78 102400
364373945 miqik B Feb. 25, 2026, 4:27 p.m. OK GNU C11 TESTS 5 78 3993600
364404500 RedJACK B Feb. 25, 2026, 9:15 p.m. OK Go TESTS 5 31 4710400
364418385 LittleGopher B Feb. 26, 2026, 2:22 a.m. OK Go TESTS 5 46 307200
364406103 RedJACK B Feb. 25, 2026, 9:41 p.m. OK Go TESTS 5 62 4710400
364400869 Abhii_shek3 B Feb. 25, 2026, 8:21 p.m. OK Java 21 TESTS 5 171 614400
364384837 Saurabht358 B Feb. 25, 2026, 5:27 p.m. OK Java 21 TESTS 5 187 512000
364416875 sathwikhbhat B Feb. 26, 2026, 1:56 a.m. OK Java 21 TESTS 5 187 614400
364372177 mahesh_2112 B Feb. 25, 2026, 4:23 p.m. OK Java 21 TESTS 5 203 204800
364396109 xcaliber5410 B Feb. 25, 2026, 7:18 p.m. OK Java 21 TESTS 5 203 307200
364390918 vkisgoat B Feb. 25, 2026, 6:22 p.m. OK Java 21 TESTS 5 203 409600
364383468 justin.s.gayed B Feb. 25, 2026, 5:15 p.m. OK Java 21 TESTS 5 203 409600
364373671 SanjeevKumarRay_4 B Feb. 25, 2026, 4:27 p.m. OK Java 21 TESTS 5 218 409600
364369437 TheGreatGatsby_9122 B Feb. 25, 2026, 4:16 p.m. OK Java 21 TESTS 5 218 716800
364427943 sitaramSahu B Feb. 26, 2026, 4:35 a.m. OK Java 21 TESTS 5 234 102400
364381552 surapanenisaratsatya B Feb. 25, 2026, 5:01 p.m. OK Java 8 TESTS 5 140 0
364368959 Tayyaba_22 B Feb. 25, 2026, 4:15 p.m. OK Java 8 TESTS 5 171 0
364371540 vaishnawie B Feb. 25, 2026, 4:22 p.m. OK Java 8 TESTS 5 187 0
364422113 imandeepduhan B Feb. 26, 2026, 3:22 a.m. OK Java 8 TESTS 5 218 0
364404451 yuisgame B Feb. 25, 2026, 9:15 p.m. OK Kotlin 1.9 TESTS 5 125 0
364368427 ktobarsuk B Feb. 25, 2026, 4:14 p.m. OK Kotlin 1.9 TESTS 5 171 0
364424751 gerogeVT B Feb. 26, 2026, 3:58 a.m. OK Kotlin 2.2 TESTS 5 125 26009600
364379260 SlavaG B Feb. 25, 2026, 4:46 p.m. OK Kotlin 2.2 TESTS 5 203 26419200
364392529 buddeyc B Feb. 25, 2026, 6:38 p.m. OK PyPy 3 TESTS 5 171 4505600
364367861 Harrish_07 B Feb. 25, 2026, 4:12 p.m. OK PyPy 3 TESTS 5 203 8499200
364384609 NOXRAEL B Feb. 25, 2026, 5:25 p.m. OK PyPy 3 TESTS 5 234 6348800
364415299 Bloomberg345 B Feb. 26, 2026, 1:20 a.m. OK PyPy 3 TESTS 5 265 9728000
364423502 Yj29 B Feb. 26, 2026, 3:42 a.m. OK PyPy 3 TESTS 5 296 9523200
364376757 Avinash_Babu B Feb. 25, 2026, 4:34 p.m. OK PyPy 3-64 TESTS 5 62 5120000
364369240 NaughtyIndia B Feb. 25, 2026, 4:16 p.m. OK PyPy 3-64 TESTS 5 78 3788800
364383649 santo_boi B Feb. 25, 2026, 5:17 p.m. OK PyPy 3-64 TESTS 5 78 4608000
364402022 Tanjiro_106 B Feb. 25, 2026, 8:37 p.m. OK PyPy 3-64 TESTS 5 93 3584000
364383076 opankit B Feb. 25, 2026, 5:12 p.m. OK PyPy 3-64 TESTS 5 93 3686400
364371722 DEBANGSHU B Feb. 25, 2026, 4:22 p.m. OK PyPy 3-64 TESTS 5 93 3891200
364416206 NinjaNyanCat B Feb. 26, 2026, 1:42 a.m. OK PyPy 3-64 TESTS 5 93 4300800
364418585 Aspiring_chocker B Feb. 26, 2026, 2:26 a.m. OK PyPy 3-64 TESTS 5 93 4505600
364368024 SebasMusk B Feb. 25, 2026, 4:13 p.m. OK PyPy 3-64 TESTS 5 93 5017600
364415230 SnowLucario_Z B Feb. 26, 2026, 1:19 a.m. OK PyPy 3-64 TESTS 5 93 6963200
364373783 DarkWeB10 B Feb. 25, 2026, 4:27 p.m. OK Python 3 TESTS 5 62 1740800
364373951 BenignSaw B Feb. 25, 2026, 4:27 p.m. OK Python 3 TESTS 5 78 102400
364388070 eugalt B Feb. 25, 2026, 5:56 p.m. OK Python 3 TESTS 5 93 2969600
364372713 santo_07 B Feb. 25, 2026, 4:24 p.m. OK Python 3 TESTS 5 109 0
364384524 eugalt B Feb. 25, 2026, 5:24 p.m. OK Python 3 TESTS 5 109 1228800
364386249 Kiwiman B Feb. 25, 2026, 5:39 p.m. OK Python 3 TESTS 5 125 0
364402727 Mohammad_Hasan B Feb. 25, 2026, 8:47 p.m. OK Python 3 TESTS 5 125 102400
364389744 narendar_92 B Feb. 25, 2026, 6:10 p.m. OK Python 3 TESTS 5 125 102400
364372080 ashish15678 B Feb. 25, 2026, 4:23 p.m. OK Python 3 TESTS 5 125 102400
364372466 eugalt B Feb. 25, 2026, 4:24 p.m. OK Python 3 TESTS 5 125 1228800
364384301 Tantellam B Feb. 25, 2026, 5:22 p.m. OK Rust 2024 TESTS 5 31 0
364422229 0x81 B Feb. 26, 2026, 3:23 a.m. OK Rust 2024 TESTS 5 31 11776000

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