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ContestId |
Name |
Phase |
Frozen |
Duration (Seconds) |
Relative Time |
Start Time |
|---|---|---|---|---|---|---|
| 2030 | Codeforces Round 979 (Div. 2) | FINISHED | False | 8100 | 47058923 | Oct. 19, 2024, 2:05 p.m. |
Solved |
Index |
Name |
Type |
Tags |
Community Tag |
Rating |
|---|---|---|---|---|---|---|
| ( 23626 ) | B | Minimise Oneness | PROGRAMMING | brute force combinatorics constructive algorithms |
For an arbitrary binary string (t)(^{\text{∗}}), let (f(t)) be the number of non-empty subsequences(^{\text{†}}) of (t) that contain only (\mathtt{0}), and let (g(t)) be the number of non-empty subsequences of (t) that contain at least one (\mathtt{1}). Note that for (f(t)) and for (g(t)), each subsequence is counted as many times as it appears in (t). E.g., (f(\mathtt{000}) = 7, g(\mathtt{100}) = 4). We define the oneness of the binary string (t) to be (|f(t)-g(t)|), where for an arbitrary integer (z), (|z|) represents the absolute value of (z). You are given a positive integer (n). Find a binary string (s) of length (n) such that its oneness is as small as possible. If there are multiple strings, you can print any of them. (^{\text{∗}})A binary string is a string that only consists of characters (0) and (1). (^{\text{†}})A sequence (a) is a subsequence of a sequence (b) if (a) can be obtained from (b) by the deletion of several (possibly, zero or all) elements. For example, subsequences of (\mathtt{1011101}) are (\mathtt{0}), (\mathtt{1}), (\mathtt{11111}), (\mathtt{0111}), but not (\mathtt{000}) nor (\mathtt{11100}). The first line contains an integer (t) ((1 \leq t \leq 10^4)) — the number of test cases. The only line of each test case contains an integer (n) ((1 \leq n \leq 2\cdot10^5)) — the length of (s). It is guaranteed that the sum of (n) over all test cases does not exceed (2\cdot10^5). For each test case, output (s) on a new line. If multiple answers exist, output any. In the first test case, for the example output, (f(t)=1) because there is one subsequence that contains only (\mathtt{0}) ((\mathtt{0})), and (g(t)=0) because there are no subsequences that contain at least one (1). The oneness is (|1-0|=1). The output $$$\mathtt{1} |
| Codeforces Round 979 Editorial |
Submission Id |
Author(s) |
Index |
Submitted |
Verdict |
Language |
Test Set |
Tests Passed |
Time taken (ms) |
Memory Consumed (bytes) |
Tags |
Rating |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 286852713 | nikagam | B | Oct. 19, 2024, 10:05 p.m. | OK | C# 10 | TESTS | 4 | 62 | 2560000 | ||
| 286838395 | loop42 | B | Oct. 19, 2024, 6:56 p.m. | OK | C# 10 | TESTS | 4 | 265 | 0 | ||
| 286880018 | imritik21 | B | Oct. 20, 2024, 6:05 a.m. | OK | C++17 (GCC 7-32) | TESTS | 5 | 30 | 0 | ||
| 286870707 | krishna604pk | B | Oct. 20, 2024, 4:36 a.m. | OK | C++17 (GCC 7-32) | TESTS | 5 | 30 | 0 | ||
| 286856155 | skb231 | B | Oct. 19, 2024, 11:39 p.m. | OK | C++17 (GCC 7-32) | TESTS | 4 | 30 | 102400 | ||
| 286855713 | nikhilchaturvedi07 | B | Oct. 19, 2024, 11:24 p.m. | OK | C++17 (GCC 7-32) | TESTS | 4 | 31 | 0 | ||
| 286859098 | klqiqi | B | Oct. 20, 2024, 1:20 a.m. | OK | C++17 (GCC 7-32) | TESTS | 5 | 31 | 102400 | ||
| 286834053 | _plagiarism_ | B | Oct. 19, 2024, 6:21 p.m. | OK | C++17 (GCC 7-32) | TESTS | 4 | 31 | 102400 | ||
| 286879516 | Tharun2004 | B | Oct. 20, 2024, 6:01 a.m. | OK | C++17 (GCC 7-32) | TESTS | 5 | 46 | 0 | ||
| 286879155 | vivek2711 | B | Oct. 20, 2024, 5:58 a.m. | OK | C++17 (GCC 7-32) | TESTS | 5 | 46 | 0 | ||
| 286878434 | chauhanbikash789 | B | Oct. 20, 2024, 5:52 a.m. | OK | C++17 (GCC 7-32) | TESTS | 5 | 46 | 0 | ||
| 286876058 | Aadi2906 | B | Oct. 20, 2024, 5:33 a.m. | OK | C++17 (GCC 7-32) | TESTS | 5 | 46 | 0 | ||
| 286842385 | umang_agg_11 | B | Oct. 19, 2024, 7:39 p.m. | OK | C++20 (GCC 13-64) | TESTS | 4 | 30 | 0 | ||
| 286858477 | mrysn | B | Oct. 20, 2024, 1:02 a.m. | OK | C++20 (GCC 13-64) | TESTS | 5 | 30 | 102400 | ||
| 286857539 | 36champ | B | Oct. 20, 2024, 12:31 a.m. | OK | C++20 (GCC 13-64) | TESTS | 4 | 31 | 0 | ||
| 286817789 | Mr.Alone | B | Oct. 19, 2024, 4:18 p.m. | OK | C++20 (GCC 13-64) | TESTS | 4 | 31 | 0 | ||
| 286877602 | chroot_ | B | Oct. 20, 2024, 5:46 a.m. | OK | C++20 (GCC 13-64) | TESTS | 5 | 31 | 102400 | ||
| 286852468 | enslaved | B | Oct. 19, 2024, 10:01 p.m. | OK | C++20 (GCC 13-64) | TESTS | 4 | 31 | 102400 | ||
| 286842903 | lzpeye | B | Oct. 19, 2024, 7:44 p.m. | OK | C++20 (GCC 13-64) | TESTS | 4 | 31 | 102400 | ||
| 286876589 | beiwwen | B | Oct. 20, 2024, 5:37 a.m. | OK | C++20 (GCC 13-64) | TESTS | 5 | 46 | 0 | ||
| 286876257 | chinagty | B | Oct. 20, 2024, 5:34 a.m. | OK | C++20 (GCC 13-64) | TESTS | 5 | 46 | 0 | ||
| 286875168 | Hikarii1903 | B | Oct. 20, 2024, 5:25 a.m. | OK | C++20 (GCC 13-64) | TESTS | 5 | 46 | 0 | ||
| 286871784 | Amir_Hamza19 | B | Oct. 20, 2024, 4:50 a.m. | OK | C++23 (GCC 14-64, msys2) | TESTS | 5 | 31 | 0 | ||
| 286866299 | prasannads | B | Oct. 20, 2024, 3:38 a.m. | OK | C++23 (GCC 14-64, msys2) | TESTS | 5 | 31 | 0 | ||
| 286878235 | Abdo_Ibrahim7 | B | Oct. 20, 2024, 5:51 a.m. | OK | C++23 (GCC 14-64, msys2) | TESTS | 5 | 31 | 102400 | ||
| 286835049 | vudinhlongg | B | Oct. 19, 2024, 6:27 p.m. | OK | C++23 (GCC 14-64, msys2) | TESTS | 4 | 31 | 102400 | ||
| 286873045 | chintu_26 | B | Oct. 20, 2024, 5:04 a.m. | OK | C++23 (GCC 14-64, msys2) | TESTS | 5 | 31 | 512000 | ||
| 286879202 | _m_k | B | Oct. 20, 2024, 5:58 a.m. | OK | C++23 (GCC 14-64, msys2) | TESTS | 5 | 46 | 0 | ||
| 286872999 | MM756 | B | Oct. 20, 2024, 5:04 a.m. | OK | C++23 (GCC 14-64, msys2) | TESTS | 5 | 46 | 0 | ||
| 286868320 | sskumarcp | B | Oct. 20, 2024, 4:07 a.m. | OK | C++23 (GCC 14-64, msys2) | TESTS | 5 | 46 | 0 | ||
| 286866290 | Fiatiustitia | B | Oct. 20, 2024, 3:38 a.m. | OK | C++23 (GCC 14-64, msys2) | TESTS | 5 | 46 | 0 | ||
| 286865977 | yogeshrathee307 | B | Oct. 20, 2024, 3:33 a.m. | OK | C++23 (GCC 14-64, msys2) | TESTS | 5 | 46 | 0 | ||
| 286872398 | Brackets12 | B | Oct. 20, 2024, 4:57 a.m. | OK | FPC | TESTS | 5 | 249 | 0 | ||
| 286874604 | YhuanDebeste | B | Oct. 20, 2024, 5:20 a.m. | OK | GNU C11 | TESTS | 5 | 46 | 0 | ||
| 286874917 | YhuanDebeste | B | Oct. 20, 2024, 5:23 a.m. | OK | GNU C11 | TESTS | 5 | 61 | 0 | ||
| 286832672 | YhuanDebeste | B | Oct. 19, 2024, 6:09 p.m. | OK | GNU C11 | TESTS | 4 | 62 | 0 | ||
| 286826772 | sibatullahhosenrafi | B | Oct. 19, 2024, 5:30 p.m. | OK | GNU C11 | TESTS | 4 | 62 | 0 | ||
| 286832086 | YhuanDebeste | B | Oct. 19, 2024, 6:05 p.m. | OK | GNU C11 | TESTS | 4 | 77 | 0 | ||
| 286832293 | Salwa_Baki | B | Oct. 19, 2024, 6:07 p.m. | OK | GNU C11 | TESTS | 4 | 92 | 204800 | ||
| 286857856 | fx_tourist | B | Oct. 20, 2024, 12:41 a.m. | OK | GNU C11 | TESTS | 4 | 749 | 0 | ||
| 286862611 | iamiftakher46 | B | Oct. 20, 2024, 2:38 a.m. | OK | GNU C11 | TESTS | 5 | 781 | 0 | ||
| 286866219 | xiongbin | B | Oct. 20, 2024, 3:37 a.m. | OK | GNU C11 | TESTS | 5 | 811 | 0 | ||
| 286827825 | aarshverma.2006 | B | Oct. 19, 2024, 5:35 p.m. | OK | GNU C11 | TESTS | 4 | 827 | 0 | ||
| 286817364 | daidao | B | Oct. 19, 2024, 4:17 p.m. | OK | Go | TESTS | 4 | 61 | 0 | ||
| 286823861 | dineshchandran311 | B | Oct. 19, 2024, 5:14 p.m. | OK | Java 21 | TESTS | 4 | 202 | 0 | ||
| 286810643 | SherryL | B | Oct. 19, 2024, 4:01 p.m. | OK | Java 21 | TESTS | 4 | 218 | 0 | ||
| 286852816 | SukeshKumar2 | B | Oct. 19, 2024, 10:07 p.m. | OK | Java 21 | TESTS | 4 | 218 | 716800 | ||
| 286843448 | PizzaLovers007 | B | Oct. 19, 2024, 7:50 p.m. | OK | Java 21 | TESTS | 4 | 233 | 716800 | ||
| 286877813 | say_yas | B | Oct. 20, 2024, 5:47 a.m. | OK | Java 21 | TESTS | 5 | 264 | 0 | ||
| 286810941 | singh.yuvraj1047 | B | Oct. 19, 2024, 4:02 p.m. | OK | Java 21 | TESTS | 4 | 264 | 0 | ||
| 286826108 | kushalrajpareek1 | B | Oct. 19, 2024, 5:26 p.m. | OK | Java 21 | TESTS | 4 | 264 | 204800 | ||
| 286814566 | chrisl | B | Oct. 19, 2024, 4:11 p.m. | OK | Java 21 | TESTS | 4 | 264 | 409600 | ||
| 286860833 | sandesh543 | B | Oct. 20, 2024, 2:01 a.m. | OK | Java 21 | TESTS | 5 | 264 | 1228800 | ||
| 286825898 | yash11_rai | B | Oct. 19, 2024, 5:25 p.m. | OK | Java 21 | TESTS | 4 | 265 | 307200 | ||
| 286844948 | ishurajora_23 | B | Oct. 19, 2024, 8:08 p.m. | OK | Java 8 | TESTS | 4 | 187 | 0 | ||
| 286837211 | Chandan_mehra94 | B | Oct. 19, 2024, 6:45 p.m. | OK | Java 8 | TESTS | 4 | 187 | 0 | ||
| 286814231 | six-machine | B | Oct. 19, 2024, 4:10 p.m. | OK | Java 8 | TESTS | 4 | 202 | 0 | ||
| 286831939 | luckyN1 | B | Oct. 19, 2024, 6:04 p.m. | OK | Java 8 | TESTS | 4 | 218 | 0 | ||
| 286830634 | Soumadip_Mishra | B | Oct. 19, 2024, 5:54 p.m. | OK | Java 8 | TESTS | 4 | 233 | 0 | ||
| 286865926 | achyut88 | B | Oct. 20, 2024, 3:33 a.m. | OK | Java 8 | TESTS | 5 | 390 | 0 | ||
| 286837688 | ankeshgupta | B | Oct. 19, 2024, 6:49 p.m. | OK | Java 8 | TESTS | 4 | 421 | 0 | ||
| 286879165 | 2200030476 | B | Oct. 20, 2024, 5:58 a.m. | OK | Java 8 | TESTS | 5 | 453 | 0 | ||
| 286811946 | mayurkadak | B | Oct. 19, 2024, 4:05 p.m. | OK | Java 8 | TESTS | 4 | 530 | 0 | ||
| 286837086 | jagbarrameda | B | Oct. 19, 2024, 6:44 p.m. | OK | Kotlin 1.9 | TESTS | 4 | 171 | 0 | ||
| 286825740 | YhuanDebeste | B | Oct. 19, 2024, 5:24 p.m. | OK | Perl | TESTS | 4 | 77 | 0 | ||
| 286875155 | BytesizeGenius | B | Oct. 20, 2024, 5:25 a.m. | OK | PyPy 3 | TESTS | 5 | 155 | 2764800 | ||
| 286841748 | hrayli | B | Oct. 19, 2024, 7:31 p.m. | OK | PyPy 3 | TESTS | 4 | 171 | 4608000 | ||
| 286825788 | Awsoemio | B | Oct. 19, 2024, 5:24 p.m. | OK | PyPy 3 | TESTS | 4 | 202 | 4608000 | ||
| 286826305 | Bish311 | B | Oct. 19, 2024, 5:27 p.m. | OK | PyPy 3 | TESTS | 4 | 218 | 6041600 | ||
| 286831494 | Sovi_11 | B | Oct. 19, 2024, 6 p.m. | OK | PyPy 3 | TESTS | 4 | 249 | 4812800 | ||
| 286830883 | heet070 | B | Oct. 19, 2024, 5:56 p.m. | OK | PyPy 3-64 | TESTS | 4 | 78 | 3276800 | ||
| 286824726 | gardengnome | B | Oct. 19, 2024, 5:18 p.m. | OK | PyPy 3-64 | TESTS | 4 | 92 | 2867200 | ||
| 286859697 | udayan8 | B | Oct. 20, 2024, 1:36 a.m. | OK | PyPy 3-64 | TESTS | 5 | 92 | 3072000 | ||
| 286830179 | guptaankitaanand | B | Oct. 19, 2024, 5:51 p.m. | OK | PyPy 3-64 | TESTS | 4 | 92 | 3584000 | ||
| 286833456 | YhuanDebeste | B | Oct. 19, 2024, 6:16 p.m. | OK | PyPy 3-64 | TESTS | 4 | 93 | 2867200 | ||
| 286839143 | anirudhan_here | B | Oct. 19, 2024, 7:04 p.m. | OK | PyPy 3-64 | TESTS | 4 | 93 | 3276800 | ||
| 286845928 | AryanGoel575 | B | Oct. 19, 2024, 8:21 p.m. | OK | PyPy 3-64 | TESTS | 4 | 108 | 3174400 | ||
| 286868699 | redkitex | B | Oct. 20, 2024, 4:12 a.m. | OK | PyPy 3-64 | TESTS | 5 | 108 | 4096000 | ||
| 286863473 | DivijJ | B | Oct. 20, 2024, 2:54 a.m. | OK | PyPy 3-64 | TESTS | 5 | 124 | 3276800 | ||
| 286833890 | jvatsal0709 | B | Oct. 19, 2024, 6:19 p.m. | OK | PyPy 3-64 | TESTS | 4 | 124 | 3276800 | ||
| 286833144 | YhuanDebeste | B | Oct. 19, 2024, 6:13 p.m. | OK | Python 2 | TESTS | 4 | 155 | 16588800 | ||
| 286825495 | YhuanDebeste | B | Oct. 19, 2024, 5:22 p.m. | OK | Python 2 | TESTS | 4 | 171 | 21196800 | ||
| 286829529 | MdNazmulHossain | B | Oct. 19, 2024, 5:46 p.m. | OK | Python 3 | TESTS | 4 | 62 | 0 | ||
| 286865260 | twilight7 | B | Oct. 20, 2024, 3:23 a.m. | OK | Python 3 | TESTS | 5 | 77 | 0 | ||
| 286860581 | srinandasai12 | B | Oct. 20, 2024, 1:56 a.m. | OK | Python 3 | TESTS | 5 | 77 | 0 | ||
| 286850255 | slk12slk | B | Oct. 19, 2024, 9:21 p.m. | OK | Python 3 | TESTS | 4 | 77 | 0 | ||
| 286829389 | sajid982884 | B | Oct. 19, 2024, 5:45 p.m. | OK | Python 3 | TESTS | 4 | 77 | 0 | ||
| 286828200 | VSS_Sajid | B | Oct. 19, 2024, 5:37 p.m. | OK | Python 3 | TESTS | 4 | 77 | 0 | ||
| 286814408 | Crackbrain07 | B | Oct. 19, 2024, 4:11 p.m. | OK | Python 3 | TESTS | 4 | 77 | 0 | ||
| 286815045 | klu_2200080218 | B | Oct. 19, 2024, 4:12 p.m. | OK | Python 3 | TESTS | 4 | 77 | 2355200 | ||
| 286832275 | avijit204 | B | Oct. 19, 2024, 6:06 p.m. | OK | Python 3 | TESTS | 4 | 77 | 3788800 | ||
| 286811063 | kishan_18 | B | Oct. 19, 2024, 4:02 p.m. | OK | Python 3 | TESTS | 4 | 92 | 0 | ||
| 286873627 | hirose2020 | B | Oct. 20, 2024, 5:11 a.m. | OK | Ruby 3 | TESTS | 5 | 249 | 1228800 | ||
| 286828452 | 0x81 | B | Oct. 19, 2024, 5:39 p.m. | OK | Rust 2021 | TESTS | 4 | 61 | 102400 | ||
| 286822522 | 0x81 | B | Oct. 19, 2024, 5:07 p.m. | OK | Rust 2021 | TESTS | 4 | 108 | 0 |
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