Blue color from RGBA Sergey Svistunov

Extract the Blue channel from a stream of RGBA pixels as fast as possible.

Input: 125 000 000 pixels in binary RGBA format on STDIN (4 bytes per pixel: R, G, B, A).

Output: Write only the Blue byte of each pixel to STDOUT (125 000 000 bytes total).

Restrictions:30s256Mb 1 Score Packages
#AuthorScoreLanguageSolution
1AnSaAnSa Expert3,051
CPP
clang++18.1.3
Oct 30, 2025 10:34
73,237,181 ns · 30,793,000 ns · 11,920,000 ns · 126,218,240 B
2olliecrowolliecrow Master3,053
CPP
g++13.3.0
Feb 14, 2026 22:20
65,693,409 ns · 30,818,000 ns · 11,929,000 ns · 126,005,248 B
3Josu San MartinJosu San Martin Grandmaster3,061
CPP
g++13.3.0
Apr 11, 2026 06:50
65,821,016 ns · 30,895,000 ns · 11,959,000 ns · 126,271,488 B
4Adam FolwarcznyAdam Folwarczny Skilled3,069
CPP
g++13.3.0
Jun 19, 2025 20:16
70,103,855 ns · 30,974,000 ns · 11,990,000 ns · 126,222,336 B
5vahookvahook Expert3,088
CPP
g++13.3.0
Jun 2, 2025 20:42
66,640,698 ns · 30,461,000 ns · 12,774,000 ns · 126,222,336 B
6Yuriy LyfenkoYuriy Lyfenko Master3,094
CPP
g++13.3.0
Apr 13, 2026 20:04
66,519,538 ns · 31,223,000 ns · 12,086,000 ns · 126,267,392 B
7limanjun99limanjun99 Master3,104
CPP
g++13.3.0
Mar 29, 2026 08:26
72,672,374 ns · 31,605,000 ns · 11,852,000 ns · 126,005,248 B
8sophiasophia Skilled3,121
CPP
g++13.3.0
Feb 26, 2026 02:27
72,766,776 ns · 31,774,000 ns · 11,915,000 ns · 126,013,440 B
9Aniruddha DebAniruddha Deb Master3,131
CPP
g++13.3.0
May 4, 2025 23:20
66,134,037 ns · 31,878,000 ns · 11,954,000 ns · 126,173,184 B
10Chandrasekaran AkashChandrasekaran Akash Skilled3,143
CPP
g++13.2.0
Apr 10, 2025 19:10
76,228,338 ns · 31,003,000 ns · 13,001,000 ns · 126,005,248 B
11Dominique GarmierDominique Garmier Master3,192
CPP
g++13.3.0
Mar 25, 2026 01:52
68,685,880 ns · 33,761,000 ns · 10,922,000 ns · 126,005,248 B
12KeefeKeefe Expert3,238
CPP
g++13.3.0
Apr 27, 2025 04:11
72,044,855 ns · 34,252,000 ns · 11,081,000 ns · 126,005,248 B
13MylesMyles Skilled3,315
CPP
g++13.3.0
Sep 18, 2025 03:02
74,455,609 ns · 34,301,000 ns · 12,106,000 ns · 126,119,936 B
14Joad NacerJoad Nacer Expert3,356
CPP
g++13.2.0
Dec 12, 2024 21:17
68,231,369 ns · 32,986,000 ns · 13,994,000 ns · 126,017,536 B
15etherealethereal Skilled3,412
CPP
g++13.3.0
May 6, 2025 11:37
76,232,512 ns · 34,829,000 ns · 12,936,000 ns · 126,259,200 B
16Ian MckibbenIan Mckibben Expert3,479
CPP
clang++18.1.3
Feb 17, 2025 19:07
73,310,372 ns · 34,787,000 ns · 13,914,000 ns · 126,267,392 B
17Daniel MastalerzDaniel Mastalerz Skilled3,483
CPP
g++13.3.0
Nov 1, 2025 21:33
83,665,573 ns · 36,816,000 ns · 11,940,000 ns · 126,005,248 B
18Mikhail ShirokovMikhail Shirokov Expert3,484
CPP
g++13.2.0
Jan 12, 2025 20:29
71,064,618 ns · 34,837,000 ns · 13,934,000 ns · 126,177,280 B
19matsuoka-601matsuoka-601 Expert3,520
CPP
g++13.3.0
Dec 31, 2025 02:46
75,385,597 ns · 38,214,000 ns · 11,061,000 ns · 126,259,200 B
20Aleksei ShahoikaAleksei Shahoika Expert3,527
CPP
g++13.3.0
Feb 20, 2026 10:24
75,953,328 ns · 35,268,000 ns · 14,107,000 ns · 126,238,720 B
21Martin StensgårdMartin Stensgård Skilled3,550
CPP
g++13.3.0
Oct 13, 2025 00:54
72,179,589 ns · 37,774,000 ns · 11,928,000 ns · 126,001,152 B
22HighloadGPT-o3-mini-highHighloadGPT-o3-mini-high Expert3,583
CPP
clang++18.1.3
Feb 2, 2025 20:33
72,796,397 ns · 38,123,000 ns · 12,038,000 ns · 126,267,392 B
23Yehor BondarYehor Bondar Skilled3,589
CPP
g++13.3.0
Dec 30, 2025 12:17
72,666,280 ns · 35,175,000 ns · 15,075,000 ns · 126,013,440 B
24Andrey LikhachevAndrey Likhachev Expert3,798
RUST
rust-1.84.1
Feb 5, 2025 16:22
79,655,068 ns · 40,132,000 ns · 13,042,000 ns · 125,181,952 B
25lipapipalipapipa Skilled3,927
CPP
g++13.3.0
Jan 29, 2026 22:53
85,790,623 ns · 32,985,000 ns · 21,990,000 ns · 126,119,936 B
26wainCGPwainCGP Skilled4,264
CPP
clang++18.1.3
Mar 26, 2025 12:57
77,991,184 ns · 34,824,000 ns · 24,874,000 ns · 126,271,488 B
27Robert BurkeRobert Burke Expert4,355
CPP
g++13.3.0
Dec 28, 2025 16:29
88,158,840 ns · 41,977,000 ns · 18,990,000 ns · 126,164,992 B
28ii14ii14 Skilled4,764
CPP
g++9.4.0
Dec 24, 2024 14:53
90,163,567 ns · 42,802,000 ns · 23,889,000 ns · 126,132,224 B
29DanielDaniel Skilled5,130
RUST
rust-1.85.0
Mar 1, 2025 16:52
97,615,711 ns · 47,882,000 ns · 23,941,000 ns · 126,074,880 B
30Alexander MonakovAlexander Monakov Skilled5,983
CPP
g++13.2.0
Dec 12, 2024 20:19
106,918,397 ns · 17,949,000 ns · 65,816,000 ns · 126,263,296 B
31dist1lldist1ll Apprentice6,793
CPP
g++13.2.0
Feb 17, 2025 18:06
120,629,968 ns · 18,018,000 ns · 77,079,000 ns · 126,099,456 B
32Charles CabergsCharles Cabergs Expert6,853
CPP
g++13.3.0
Apr 26, 2026 16:03
117,588,668 ns · 40,977,000 ns · 54,969,000 ns · 126,164,992 B
33BenBen Expert7,130
CPP
clang++20.1.2
Apr 22, 2026 13:18
114,200,528 ns · 17,968,000 ns · 81,857,000 ns · 126,259,200 B
34Taylor DettlingTaylor Dettling Expert7,390
RUST
rust-1.95.0
Apr 21, 2026 01:34
129,491,175 ns · 18,903,000 ns · 84,570,000 ns · 125,992,960 B
35koty166koty166 Apprentice7,467
CPP
g++13.3.0
Oct 29, 2025 12:50
131,807,231 ns · 24,889,000 ns · 79,646,000 ns · 126,136,320 B
36thatmagicalcatthatmagicalcat Skilled7,934
RUST
rust-1.87.0
Jun 19, 2025 05:56
134,540,395 ns · 46,032,000 ns · 65,045,000 ns · 126,160,896 B
37zypehzypeh Apprentice7,947
GO
go1.25.5
Dec 26, 2025 12:32
139,585,805 ns · 41,095,000 ns · 70,163,000 ns · 126,058,496 B
38HighloadGPTO1HighloadGPTO1 Skilled7,966
CPP
clang++18.1.3
Dec 22, 2024 23:22
143,601,971 ns · 51,777,000 ns · 59,743,000 ns · 126,058,496 B
39TudyMTudyM Expert8,072
CPP
g++10.5.0
Apr 26, 2026 17:00
129,900,735 ns · 18,002,000 ns · 95,012,000 ns · 126,091,264 B
40Oleg KovalovOleg Kovalov Skilled9,351
GO
go1.25.3
Nov 4, 2025 08:01
152,570,437 ns · 63,960,000 ns · 66,959,000 ns · 126,181,376 B
41Divyansh MittalDivyansh Mittal Skilled9,418
CPP
g++13.3.0
Apr 30, 2025 05:18
153,417,894 ns · 27,968,000 ns · 103,882,000 ns · 126,242,816 B
42NoSIMD_C#NoSIMD_C# Skilled10,139
CSHARP
9.0.4
Apr 9, 2025 17:46
183,631,868 ns · 61,848,000 ns · 80,098,000 ns · 126,136,320 B
43Viktor SuprunViktor Suprun Apprentice11,373
GO
go1.25.5
Dec 14, 2025 11:27
190,135,581 ns · 100,136,000 ns · 59,080,000 ns · 126,074,880 B
44izotoffizotoff Expert11,447
GO
go1.11
Nov 9, 2025 06:35
186,419,884 ns · 95,149,000 ns · 65,102,000 ns · 126,160,896 B
45gchebanovgchebanov Expert11,795
CPP
clang++10.0.0
Jul 9, 2023 18:18
982,885,390 ns · 165,134,056 ns · 0 ns · 226,357,248 B
46Kenneth MaplesKenneth Maples Expert26,348
CPP
g++9.4.0
Dec 29, 2023 16:27
2,650,038,564 ns · 368,873,941 ns · 0 ns · 267,579,392 B
47Oleg TOleg T Apprentice33,146
CPP
g++9.3.0
Feb 18, 2023 11:41
2,877,441,436 ns · 17,934,000 ns · 446,109,000 ns · 267,493,376 B
48Elijah KinElijah Kin Apprentice33,313
CPP
clang++10.0.0
Jul 17, 2024 06:41
2,864,465,636 ns · 22,851,000 ns · 443,536,000 ns · 267,284,480 B
49Viktor IarmolaViktor Iarmola Apprentice33,388
CPP
g++9.3.0
Dec 6, 2023 09:41
2,922,730,640 ns · 21,463,000 ns · 445,964,000 ns · 267,091,968 B
50Huy Duc LeHuy Duc Le Expert33,418
CPP
g++9.4.0
Mar 7, 2024 07:33
2,864,752,087 ns · 19,282,000 ns · 448,565,000 ns · 266,801,152 B
51E SequeiraE Sequeira Skilled33,660
CPP
g++13.2.0
Dec 8, 2024 06:00
2,893,554,080 ns · 8,746,000 ns · 462,495,000 ns · 267,366,400 B
52BenBen Skilled34,963
CPP
g++9.4.0
Aug 1, 2024 05:56
2,898,762,523 ns · 36,763,000 ns · 452,713,000 ns · 267,976,704 B
53hungrycathungrycat Novice35,202
CPP
clang++18.1.3
Nov 13, 2024 20:30
2,924,482,419 ns · 31,831,000 ns · 461,002,000 ns · 266,895,360 B
54Dan StolyarovDan Stolyarov Apprentice36,219
CPP
clang++18.1.3
Nov 13, 2024 18:24
2,928,352,457 ns · 41,746,000 ns · 465,317,000 ns · 263,168,000 B
55Franek KortaFranek Korta Skilled36,548
CPP
g++9.3.0
Feb 25, 2023 17:22
3,972,709,594 ns · 511,668,319 ns · 0 ns · 266,113,024 B
56Avinash BodduAvinash Boddu Apprentice36,809
CSHARP
9.0.0-preview.6
Aug 1, 2024 17:07
2,641,802,649 ns · 515,330,408 ns · 0 ns · 264,515,584 B
57Vitaliy F.Vitaliy F. Skilled36,909
GO
go1.21.5
Dec 24, 2023 20:31
3,759,961,821 ns · 516,726,740 ns · 0 ns · 265,797,632 B
58Ignas BagdonasIgnas Bagdonas Apprentice37,004
CPP
clang++10.0.0
Mar 16, 2023 14:02
4,056,162,221 ns · 518,055,044 ns · 0 ns · 267,489,280 B
59LiamLiam Skilled37,076
CPP
g++9.3.0
Feb 19, 2023 19:27
3,729,445,015 ns · 519,070,121 ns · 0 ns · 266,977,280 B
60Sergey StreminSergey Stremin Expert40,527
RUST
rust-1.67.1
Mar 4, 2023 11:15
2,941,933,264 ns · 83,381,000 ns · 483,998,000 ns · 267,059,200 B
61Bernard TeoBernard Teo Expert40,813
CPP
g++9.3.0
Feb 28, 2023 23:25
4,583,119,110 ns · 571,377,319 ns · 0 ns · 140,804,096 B
62Andranik ChakiryanAndranik Chakiryan Apprentice41,308
GO
go1.20.2
Mar 11, 2023 20:01
4,844,878,543 ns · 578,315,593 ns · 0 ns · 139,407,360 B
63джулисджулис Apprentice42,050
CPP
g++9.4.0
Jun 18, 2024 19:01
3,290,223,302 ns · 588,704,258 ns · 0 ns · 140,767,232 B
64AndreyTSAndreyTS Apprentice42,340
CPP
g++9.4.0
Jun 9, 2024 10:40
3,290,344,694 ns · 592,765,558 ns · 0 ns · 140,652,544 B
65aohoydaohoyd Novice42,684
GO
go1.21.9
Jun 28, 2024 21:56
3,221,235,337 ns · 597,578,676 ns · 0 ns · 137,269,248 B
66Eugene ZhydzetskiEugene Zhydzetski Skilled43,301
GO
go1.22.1
Mar 29, 2024 10:41
3,242,041,509 ns · 606,213,185 ns · 0 ns · 139,808,768 B
67Andrey TsvetkovAndrey Tsvetkov Skilled43,404
GO
go1.20.1
Feb 18, 2023 07:35
4,833,017,794 ns · 607,654,879 ns · 0 ns · 138,256,384 B
68Nadiminty KaundinyaNadiminty Kaundinya Novice47,534
GO
go1.22.5
Jul 16, 2024 12:37
3,285,258,471 ns · 665,481,880 ns · 0 ns · 139,526,144 B
69Viktor PoletanskyViktor Poletansky Apprentice47,763
GO
go1.20.1
Feb 18, 2023 14:26
5,449,339,560 ns · 668,675,019 ns · 0 ns · 139,575,296 B
70Ilya AniskovetsIlya Aniskovets Skilled47,827
GO
go1.20.7
Aug 22, 2023 18:23
4,663,635,409 ns · 669,582,442 ns · 0 ns · 139,071,488 B
71Ilya ZIlya Z Novice47,945
GO
go1.22.4
Jun 9, 2024 12:23
3,289,567,298 ns · 671,235,618 ns · 0 ns · 141,148,160 B
72Yurkov AlekseyYurkov Aleksey Expert50,491
CPP
g++9.4.0
Jan 2, 2024 17:44
4,556,866,412 ns · 706,869,222 ns · 0 ns · 262,922,240 B
73Jack FrigaardJack Frigaard Skilled51,633
CPP
clang++10.0.0
Feb 19, 2023 13:05
7,660,478,270 ns · 722,863,413 ns · 0 ns · 265,527,296 B
74nikola-kovrizhnynikola-kovrizhny Apprentice57,373
CPP
g++9.3.0
Jun 21, 2023 12:52
7,315,563,824 ns · 803,226,740 ns · 0 ns · 142,540,800 B
75mmalczakmmalczak Skilled64,468
CPP
g++9.3.0
Nov 24, 2023 08:28
9,377,502,462 ns · 902,551,360 ns · 0 ns · 265,818,112 B
76LellingeLellinge Apprentice65,579
CPP
g++9.3.0
Mar 25, 2023 19:51
9,666,352,944 ns · 918,110,299 ns · 0 ns · 266,838,016 B
77apuxbtapuxbt Skilled66,499
CPP
g++9.3.0
Sep 30, 2023 02:27
9,273,286,984 ns · 930,989,144 ns · 0 ns · 266,555,392 B
78Victor MerckléVictor Mercklé Grandmaster74,397
CPP
g++14.2.0
Apr 27, 2026 22:43
1,062,279,583 ns · 1,017,580,000 ns · 23,990,000 ns · 126,148,608 B
79Jörn HorstmannJörn Horstmann Apprentice86,106
RUST
rust-1.70.0
Jul 4, 2023 08:05
9,596,710,054 ns · 1,205,477,410 ns · 0 ns · 266,162,176 B
80Charlie ShepherdCharlie Shepherd Apprentice90,909
RUST
rust-1.79.0
Jul 18, 2024 23:11
8,438,889,928 ns · 1,272,728,169 ns · 0 ns · 142,434,304 B
81IhebIheb Skilled92,732
CPP
g++9.3.0
Sep 26, 2023 15:01
13,830,413,174 ns · 1,298,251,589 ns · 0 ns · 142,422,016 B
82TuetuopayTuetuopay Apprentice100,135
RUST
rust-1.81.0
Sep 6, 2024 12:14
7,599,433,109 ns · 85,431,000 ns · 1,316,463,000 ns · 142,192,640 B
83Sybrand AarnoutseSybrand Aarnoutse Apprentice101,289
RUST
rust-1.82.0
Oct 18, 2024 22:57
7,529,089,768 ns · 90,385,000 ns · 1,327,659,000 ns · 142,462,976 B
84EdgarEdgar Apprentice139,208
RUST
rust-1.67.1
Feb 17, 2023 06:40
4,505,511,349 ns · 1,948,918,968 ns · 0 ns · 262,475,776 B
85Gokberk YaltirakliGokberk Yaltirakli Apprentice185,529
CPP
g++9.3.0
Jul 3, 2023 11:44
9,634,433,857 ns · 2,597,402,343 ns · 0 ns · 265,654,272 B
86marcømarcø Novice299,667
CPP
g++13.3.0
May 11, 2025 01:45
4,220,743,009 ns · 4,097,394,000 ns · 97,937,000 ns · 126,013,440 B