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ContestId |
Name |
Phase |
Frozen |
Duration (Seconds) |
Relative Time |
Start Time |
|---|---|---|---|---|---|---|
| 2230 | Educational Codeforces Round 190 (Rated for Div. 2) | FINISHED | False | 7200 | 2561102 | May 18, 2026, 2:35 p.m. |
Solved |
Index |
Name |
Type |
Tags |
Community Tag |
Rating |
|---|---|---|---|---|---|---|
| ( 15463 ) | B | Digit String | PROGRAMMING | greedy implementation math |
You are given a string (s) consisting of digits from (1) to (4). Let's say that the string is beautiful if it is impossible to select some of its elements and write them out (in the same order as they appear in the string) to form a number that is a multiple of (4). For example, the strings 31 , 222 , 213 are beautiful, while the strings 143 , 3123 , 1322 are not. The empty string is considered beautiful. Your task is to calculate the minimum possible number of elements in the string (s) that need to be removed in order to make it 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 string (s) ((1 \le |s| \le 3 \cdot 10^5)), consisting of digits from (1) to (4). Additional constraint on the input: the sum of the lengths of (s) over all test cases doesn't exceed (3 \cdot 10^5). For each test case, print a single integer — the minimum possible number of elements in the string (s) that need to be removed in order to make it beautiful. In the first example, you have to delete the whole string. In the second example, the string is already beautiful. In the third example, you can delete the (1)-st, (3)-rd, (4)-th, and (6)-th characters, and you will get the string 213 . |
| Educational Codeforces Round 190 — Editorial |
Submission Id |
Author(s) |
Index |
Submitted |
Verdict |
Language |
Test Set |
Tests Passed |
Time taken (ms) |
Memory Consumed (bytes) |
Tags |
Rating |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 375166605 | anniceddra | B | May 18, 2026, 7:44 p.m. | OK | C# 13 | TESTS | 5 | 62 | 6246400 | ||
| 375176380 | brute_force004 | B | May 19, 2026, midnight | OK | C++17 (GCC 7-32) | TESTS | 5 | 15 | 0 | ||
| 375153862 | mk738059 | B | May 18, 2026, 5:16 p.m. | OK | C++17 (GCC 7-32) | TESTS | 5 | 15 | 0 | ||
| 375148773 | Moonnight143 | B | May 18, 2026, 4:34 p.m. | OK | C++17 (GCC 7-32) | TESTS | 5 | 15 | 0 | ||
| 375147014 | Ankesh_18 | B | May 18, 2026, 4:30 p.m. | OK | C++17 (GCC 7-32) | TESTS | 5 | 15 | 0 | ||
| 375146507 | youseef255 | B | May 18, 2026, 4:29 p.m. | OK | C++17 (GCC 7-32) | TESTS | 5 | 15 | 0 | ||
| 375141607 | himanshu418 | B | May 18, 2026, 4:16 p.m. | OK | C++17 (GCC 7-32) | TESTS | 5 | 15 | 0 | ||
| 375140054 | codeof_akshit | B | May 18, 2026, 4:12 p.m. | OK | C++17 (GCC 7-32) | TESTS | 5 | 15 | 0 | ||
| 375138010 | JedrzejM | B | May 18, 2026, 4:07 p.m. | OK | C++17 (GCC 7-32) | TESTS | 5 | 15 | 0 | ||
| 375137342 | khushi_kushwaha | B | May 18, 2026, 4:05 p.m. | OK | C++17 (GCC 7-32) | TESTS | 5 | 15 | 0 | ||
| 375139868 | diponk24 | B | May 18, 2026, 4:12 p.m. | OK | C++17 (GCC 7-32) | TESTS | 5 | 15 | 102400 | ||
| 375162242 | stellarythmic22 | B | May 18, 2026, 6:43 p.m. | OK | C++20 (GCC 13-64) | TESTS | 5 | 15 | 0 | ||
| 375160677 | Hazemkamal | B | May 18, 2026, 6:24 p.m. | OK | C++20 (GCC 13-64) | TESTS | 5 | 15 | 0 | ||
| 375147945 | jeroa | B | May 18, 2026, 4:32 p.m. | OK | C++20 (GCC 13-64) | TESTS | 5 | 15 | 0 | ||
| 375147878 | RishankSharma | B | May 18, 2026, 4:32 p.m. | OK | C++20 (GCC 13-64) | TESTS | 5 | 15 | 0 | ||
| 375141533 | aishwarya_s22 | B | May 18, 2026, 4:16 p.m. | OK | C++20 (GCC 13-64) | TESTS | 5 | 15 | 0 | ||
| 375141509 | Refa3e | B | May 18, 2026, 4:16 p.m. | OK | C++20 (GCC 13-64) | TESTS | 5 | 15 | 0 | ||
| 375136164 | litrium | B | May 18, 2026, 4:02 p.m. | OK | C++20 (GCC 13-64) | TESTS | 5 | 15 | 0 | ||
| 375193338 | Atharvashukla527 | B | May 19, 2026, 5:46 a.m. | OK | C++20 (GCC 13-64) | TESTS | 5 | 15 | 102400 | ||
| 375142550 | priyanshu_2341 | B | May 18, 2026, 4:19 p.m. | OK | C++20 (GCC 13-64) | TESTS | 5 | 15 | 102400 | ||
| 375138380 | Athikul_Islam | B | May 18, 2026, 4:08 p.m. | OK | C++20 (GCC 13-64) | TESTS | 5 | 15 | 102400 | ||
| 375189198 | clawson19 | B | May 19, 2026, 4:46 a.m. | OK | C++23 (GCC 14-64, msys2) | TESTS | 5 | 15 | 0 | ||
| 375183129 | bala_siva | B | May 19, 2026, 2:54 a.m. | OK | C++23 (GCC 14-64, msys2) | TESTS | 5 | 15 | 0 | ||
| 375175366 | itsHakeem | B | May 18, 2026, 11:21 p.m. | OK | C++23 (GCC 14-64, msys2) | TESTS | 5 | 15 | 0 | ||
| 375169971 | kaustubh3883 | B | May 18, 2026, 8:46 p.m. | OK | C++23 (GCC 14-64, msys2) | TESTS | 5 | 15 | 0 | ||
| 375168558 | Ishwar_2911 | B | May 18, 2026, 8:19 p.m. | OK | C++23 (GCC 14-64, msys2) | TESTS | 5 | 15 | 0 | ||
| 375166410 | anooptripathi81974 | B | May 18, 2026, 7:41 p.m. | OK | C++23 (GCC 14-64, msys2) | TESTS | 5 | 15 | 0 | ||
| 375163066 | Anbhigya | B | May 18, 2026, 6:53 p.m. | OK | C++23 (GCC 14-64, msys2) | TESTS | 5 | 15 | 0 | ||
| 375160089 | FallenSeny | B | May 18, 2026, 6:19 p.m. | OK | C++23 (GCC 14-64, msys2) | TESTS | 5 | 15 | 0 | ||
| 375158422 | Blacklotus89898 | B | May 18, 2026, 6:01 p.m. | OK | C++23 (GCC 14-64, msys2) | TESTS | 5 | 15 | 0 | ||
| 375152847 | Atharv_S_13 | B | May 18, 2026, 5:07 p.m. | OK | C++23 (GCC 14-64, msys2) | TESTS | 5 | 15 | 0 | ||
| 375176989 | NenadDapic | B | May 19, 2026, 12:23 a.m. | OK | FPC | TESTS | 5 | 78 | 5017600 | ||
| 375175770 | pengin_2000 | B | May 18, 2026, 11:36 p.m. | OK | GNU C11 | TESTS | 5 | 31 | 2764800 | ||
| 375157879 | xooks_1434 | B | May 18, 2026, 5:56 p.m. | OK | GNU C11 | TESTS | 5 | 46 | 204800 | ||
| 375142667 | akarsh_2110 | B | May 18, 2026, 4:19 p.m. | OK | GNU C11 | TESTS | 5 | 46 | 204800 | ||
| 375140538 | enigmadreamer | B | May 18, 2026, 4:13 p.m. | OK | GNU C11 | TESTS | 5 | 46 | 204800 | ||
| 375137083 | divatforces | B | May 18, 2026, 4:05 p.m. | OK | GNU C11 | TESTS | 5 | 46 | 204800 | ||
| 375155131 | Shubham2278 | B | May 18, 2026, 5:28 p.m. | OK | GNU C11 | TESTS | 5 | 46 | 307200 | ||
| 375146390 | Sumit1601 | B | May 18, 2026, 4:29 p.m. | OK | GNU C11 | TESTS | 5 | 46 | 307200 | ||
| 375141929 | Sana_24 | B | May 18, 2026, 4:17 p.m. | OK | GNU C11 | TESTS | 5 | 46 | 307200 | ||
| 375141457 | tsc_crux | B | May 18, 2026, 4:16 p.m. | OK | GNU C11 | TESTS | 5 | 46 | 921600 | ||
| 375143780 | linyaoyang | B | May 18, 2026, 4:22 p.m. | OK | GNU C11 | TESTS | 5 | 46 | 1536000 | ||
| 375167120 | chethan_coding | B | May 18, 2026, 7:54 p.m. | OK | Go | TESTS | 5 | 31 | 2048000 | ||
| 375137322 | Gampr | B | May 18, 2026, 4:05 p.m. | OK | Go | TESTS | 5 | 31 | 4505600 | ||
| 375156737 | Ayush_Chauhan025 | B | May 18, 2026, 5:44 p.m. | OK | Java 21 | TESTS | 5 | 156 | 819200 | ||
| 375142591 | Vickypedia420 | B | May 18, 2026, 4:19 p.m. | OK | Java 21 | TESTS | 5 | 171 | 614400 | ||
| 375140959 | yh1029 | B | May 18, 2026, 4:14 p.m. | OK | Java 21 | TESTS | 5 | 171 | 614400 | ||
| 375140654 | sanx.kar | B | May 18, 2026, 4:14 p.m. | OK | Java 21 | TESTS | 5 | 187 | 0 | ||
| 375177122 | dsxy | B | May 19, 2026, 12:27 a.m. | OK | Java 21 | TESTS | 5 | 187 | 102400 | ||
| 375191652 | Krrish | B | May 19, 2026, 5:23 a.m. | OK | Java 21 | TESTS | 5 | 187 | 307200 | ||
| 375176654 | sathwikhbhat | B | May 19, 2026, 12:10 a.m. | OK | Java 21 | TESTS | 5 | 187 | 409600 | ||
| 375146801 | hopeso_1027 | B | May 18, 2026, 4:29 p.m. | OK | Java 21 | TESTS | 5 | 187 | 512000 | ||
| 375144849 | adityakapruwan3v123 | B | May 18, 2026, 4:25 p.m. | OK | Java 21 | TESTS | 5 | 187 | 512000 | ||
| 375142218 | abdallh.mh99 | B | May 18, 2026, 4:18 p.m. | OK | Java 21 | TESTS | 5 | 187 | 512000 | ||
| 375159621 | TheJavaGuy | B | May 18, 2026, 6:14 p.m. | OK | Java 8 | TESTS | 5 | 125 | 3276800 | ||
| 375145731 | random2347 | B | May 18, 2026, 4:27 p.m. | OK | Java 8 | TESTS | 5 | 140 | 0 | ||
| 375142330 | hey_prateek__ | B | May 18, 2026, 4:18 p.m. | OK | Java 8 | TESTS | 5 | 156 | 0 | ||
| 375137003 | krishna_s_kapale | B | May 18, 2026, 4:04 p.m. | OK | Java 8 | TESTS | 5 | 156 | 0 | ||
| 375136525 | anix1207 | B | May 18, 2026, 4:03 p.m. | OK | Java 8 | TESTS | 5 | 156 | 0 | ||
| 375138554 | Peaceful_Soul | B | May 18, 2026, 4:08 p.m. | OK | Java 8 | TESTS | 5 | 156 | 12902400 | ||
| 375190560 | chaitudec2005 | B | May 19, 2026, 5:07 a.m. | OK | Java 8 | TESTS | 5 | 171 | 0 | ||
| 375140514 | abhaygupta9397 | B | May 18, 2026, 4:13 p.m. | OK | Java 8 | TESTS | 5 | 171 | 0 | ||
| 375139777 | Idiotic_fellow327 | B | May 18, 2026, 4:11 p.m. | OK | Java 8 | TESTS | 5 | 171 | 0 | ||
| 375139540 | cheenmayab | B | May 18, 2026, 4:11 p.m. | OK | Java 8 | TESTS | 5 | 171 | 0 | ||
| 375141409 | cubeweek | B | May 18, 2026, 4:16 p.m. | OK | Kotlin 2.2 | TESTS | 5 | 156 | 24268800 | ||
| 375142614 | saraXcyber | B | May 18, 2026, 4:19 p.m. | OK | PyPy 3 | TESTS | 5 | 203 | 4403200 | ||
| 375148823 | DSKroc | B | May 18, 2026, 4:34 p.m. | OK | PyPy 3 | TESTS | 5 | 203 | 9625600 | ||
| 375176147 | MadhavK2007 | B | May 18, 2026, 11:50 p.m. | OK | PyPy 3 | TESTS | 5 | 234 | 6963200 | ||
| 375138993 | chitoglt | B | May 18, 2026, 4:09 p.m. | OK | PyPy 3 | TESTS | 5 | 281 | 9216000 | ||
| 375138165 | 01xd8 | B | May 18, 2026, 4:07 p.m. | OK | PyPy 3-64 | TESTS | 5 | 62 | 15462400 | ||
| 375146618 | Tsegish | B | May 18, 2026, 4:29 p.m. | OK | PyPy 3-64 | TESTS | 5 | 78 | 3788800 | ||
| 375145648 | tokanatova | B | May 18, 2026, 4:27 p.m. | OK | PyPy 3-64 | TESTS | 5 | 78 | 3788800 | ||
| 375161636 | PseudoSol | B | May 18, 2026, 6:34 p.m. | OK | PyPy 3-64 | TESTS | 5 | 78 | 5632000 | ||
| 375144446 | GarvitGaur | B | May 18, 2026, 4:24 p.m. | OK | PyPy 3-64 | TESTS | 5 | 78 | 7065600 | ||
| 375165720 | H34V3N | B | May 18, 2026, 7:30 p.m. | OK | PyPy 3-64 | TESTS | 5 | 78 | 8192000 | ||
| 375161511 | the_seal | B | May 18, 2026, 6:33 p.m. | OK | PyPy 3-64 | TESTS | 5 | 93 | 2764800 | ||
| 375185338 | LaLiLuLaiLo | B | May 19, 2026, 3:33 a.m. | OK | PyPy 3-64 | TESTS | 5 | 93 | 2867200 | ||
| 375157939 | nayans07 | B | May 18, 2026, 5:56 p.m. | OK | PyPy 3-64 | TESTS | 5 | 93 | 2969600 | ||
| 375144482 | SPSB2928 | B | May 18, 2026, 4:24 p.m. | OK | PyPy 3-64 | TESTS | 5 | 93 | 2969600 | ||
| 375136978 | rishi_reddyyy | B | May 18, 2026, 4:04 p.m. | OK | Python 2 | TESTS | 5 | 171 | 102400 | ||
| 375162786 | TheNameIs_ROY | B | May 18, 2026, 6:49 p.m. | OK | Python 3 | TESTS | 5 | 46 | 819200 | ||
| 375137039 | notjivi | B | May 18, 2026, 4:05 p.m. | OK | Python 3 | TESTS | 5 | 62 | 921600 | ||
| 375159807 | vemuri.v.phani | B | May 18, 2026, 6:16 p.m. | OK | Python 3 | TESTS | 5 | 78 | 921600 | ||
| 375155479 | l_pavan_l | B | May 18, 2026, 5:31 p.m. | OK | Python 3 | TESTS | 5 | 78 | 1331200 | ||
| 375146675 | techno_tiger | B | May 18, 2026, 4:29 p.m. | OK | Python 3 | TESTS | 5 | 78 | 1433600 | ||
| 375144514 | Puskar_Das | B | May 18, 2026, 4:24 p.m. | OK | Python 3 | TESTS | 5 | 78 | 2048000 | ||
| 375140725 | King_of_coders | B | May 18, 2026, 4:14 p.m. | OK | Python 3 | TESTS | 5 | 78 | 2048000 | ||
| 375140936 | shaurya_codes | B | May 18, 2026, 4:14 p.m. | OK | Python 3 | TESTS | 5 | 93 | 921600 | ||
| 375180967 | chmpro | B | May 19, 2026, 2:08 a.m. | OK | Python 3 | TESTS | 5 | 93 | 1228800 | ||
| 375146681 | BenignSaw | B | May 18, 2026, 4:29 p.m. | OK | Python 3 | TESTS | 5 | 93 | 1433600 |
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