Blue color from RGB Sergey Svistunov

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

Input: 150 000 000 pixels in binary RGB format on STDIN (3 bytes per pixel: R, G, B).

Output: Write only the Blue byte of each pixel to STDOUT (150 000 000 bytes total).

Restrictions:30s256Mb 1 Score Packages
#AuthorScoreLanguageSolution
1olliecrowolliecrow Master3,001
CPP
g++13.3.0
Apr 8, 2026 07:05
62,363,164 ns · 28,012,000 ns · 14,006,000 ns · 151,379,968 B
2Josu San MartinJosu San Martin Grandmaster3,053
CPP
g++13.3.0
Apr 13, 2026 00:45
61,114,130 ns · 27,831,000 ns · 14,909,000 ns · 151,416,832 B
3AnSaAnSa Expert3,124
CPP
g++13.3.0
Oct 29, 2025 06:33
67,215,733 ns · 28,823,000 ns · 14,908,000 ns · 151,429,120 B
4vahookvahook Expert3,127
CPP
g++13.3.0
Jun 2, 2025 22:47
70,607,580 ns · 28,852,000 ns · 14,923,000 ns · 151,429,120 B
5Yuriy LyfenkoYuriy Lyfenko Master3,130
CPP
g++13.3.0
Apr 13, 2026 21:37
67,004,162 ns · 28,883,000 ns · 14,939,000 ns · 151,183,360 B
6Adam FolwarcznyAdam Folwarczny Skilled3,144
CPP
g++13.3.0
Jun 19, 2025 20:27
64,219,416 ns · 30,009,000 ns · 14,004,000 ns · 151,429,120 B
7Dominique GarmierDominique Garmier Master3,203
CPP
g++13.3.0
Mar 25, 2026 01:52
74,214,902 ns · 40,854,000 ns · 3,985,000 ns · 151,171,072 B
8limanjun99limanjun99 Master3,203
CPP
g++13.3.0
Mar 29, 2026 15:02
69,316,757 ns · 29,898,000 ns · 14,949,000 ns · 151,171,072 B
9Aniruddha DebAniruddha Deb Master3,243
CPP
g++13.3.0
Jun 27, 2025 22:12
65,632,612 ns · 32,288,000 ns · 13,117,000 ns · 151,326,720 B
10Chandrasekaran AkashChandrasekaran Akash Skilled3,273
CPP
clang++18.1.3
Apr 9, 2025 02:29
65,895,877 ns · 28,889,000 ns · 16,935,000 ns · 151,396,352 B
11KeefeKeefe Expert3,281
CPP
clang++18.1.3
May 31, 2025 15:22
77,193,124 ns · 30,957,000 ns · 14,979,000 ns · 151,420,928 B
12Ian MckibbenIan Mckibben Expert3,410
CPP
clang++18.1.3
Jun 22, 2025 05:26
73,493,750 ns · 31,826,000 ns · 15,913,000 ns · 151,326,720 B
13Daniel MastalerzDaniel Mastalerz Skilled3,423
CPP
g++13.3.0
Oct 31, 2025 20:30
70,601,704 ns · 36,939,000 ns · 10,982,000 ns · 151,281,664 B
14Robert BurkeRobert Burke Expert3,426
CPP
g++13.3.0
Dec 28, 2025 16:22
73,446,757 ns · 34,976,000 ns · 12,991,000 ns · 151,429,120 B
15Mikhail ShirokovMikhail Shirokov Expert3,431
CPP
g++13.2.0
Jan 12, 2025 18:18
66,254,937 ns · 33,021,000 ns · 15,009,000 ns · 151,339,008 B
16matsuoka-601matsuoka-601 Expert3,466
CPP
g++13.3.0
Dec 31, 2025 03:08
74,940,550 ns · 32,676,000 ns · 15,843,000 ns · 151,289,856 B
17HighloadGPT-o3-mini-highHighloadGPT-o3-mini-high Expert3,475
CPP
g++13.2.0
Feb 2, 2025 20:38
71,385,714 ns · 37,724,000 ns · 10,920,000 ns · 151,425,024 B
18Aleksei ShahoikaAleksei Shahoika Expert3,475
CPP
g++13.3.0
Feb 20, 2026 20:46
79,741,268 ns · 34,754,000 ns · 13,901,000 ns · 151,183,360 B
19Mikołaj UzarskiMikołaj Uzarski Skilled3,476
CPP
g++13.3.0
Oct 30, 2025 12:04
77,726,735 ns · 33,766,000 ns · 14,897,000 ns · 151,433,216 B
20Yehor BondarYehor Bondar Skilled3,492
CPP
g++13.3.0
Dec 23, 2025 16:43
73,894,584 ns · 31,927,000 ns · 16,961,000 ns · 151,261,184 B
21Joad NacerJoad Nacer Expert3,613
CPP
g++13.2.0
Dec 27, 2024 21:26
77,449,264 ns · 32,728,000 ns · 17,851,000 ns · 151,416,832 B
22Andrey LikhachevAndrey Likhachev Expert3,712
RUST
rust-1.84.1
Feb 5, 2025 17:29
75,001,901 ns · 33,981,000 ns · 17,990,000 ns · 150,183,936 B
23wainCGPwainCGP Skilled4,360
CPP
clang++18.1.3
Mar 26, 2025 12:52
86,154,907 ns · 36,026,000 ns · 25,018,000 ns · 151,175,168 B
24ii14ii14 Skilled4,508
CPP
clang++10.0.0
Dec 24, 2024 14:55
85,171,782 ns · 37,068,000 ns · 26,048,000 ns · 151,183,360 B
25Hung T.NguyenHung T.Nguyen Skilled4,998
CPP
g++10.5.0
May 1, 2026 17:33
87,514,588 ns · 35,986,000 ns · 33,986,000 ns · 151,212,032 B
26DanielDaniel Skilled5,236
RUST
rust-1.85.0
Mar 1, 2025 16:55
104,505,231 ns · 47,198,000 ns · 26,109,000 ns · 151,183,360 B
27Charles CabergsCharles Cabergs Expert5,583
CPP
g++13.3.0
Apr 22, 2026 19:45
101,781,886 ns · 41,561,000 ns · 36,613,000 ns · 151,400,448 B
28Taylor DettlingTaylor Dettling Expert7,196
RUST
rust-1.95.0
Apr 20, 2026 23:28
129,510,093 ns · 19,950,000 ns · 80,799,000 ns · 151,187,456 B
29TudyMTudyM Expert8,444
CPP
g++10.5.0
Apr 26, 2026 17:00
137,726,366 ns · 28,809,000 ns · 89,409,000 ns · 151,228,416 B
30Oleg SkinderevOleg Skinderev Skilled9,715
CPP
g++10.5.0
Apr 22, 2026 21:59
188,348,432 ns · 40,004,000 ns · 96,011,000 ns · 117,858,304 B
31Divyansh MittalDivyansh Mittal Skilled10,741
CPP
g++13.2.0
Apr 9, 2025 06:00
229,265,895 ns · 48,796,000 ns · 101,575,000 ns · 117,858,304 B
32thatmagicalcatthatmagicalcat Skilled10,811
RUST
rust-1.87.0
Jun 15, 2025 17:35
230,039,107 ns · 43,100,000 ns · 108,253,000 ns · 117,854,208 B
33BenBen Expert11,000
CPP
clang++20.1.2
Apr 22, 2026 13:29
221,537,039 ns · 41,732,000 ns · 112,280,000 ns · 117,796,864 B
34UU Apprentice11,402
CPP
clang++18.1.3
Jun 15, 2025 17:30
186,468,422 ns · 63,848,000 ns · 95,773,000 ns · 151,171,072 B
35HighloadGPTO1HighloadGPTO1 Skilled12,409
CPP
clang++18.1.3
Dec 22, 2024 23:38
239,081,952 ns · 65,273,000 ns · 108,454,000 ns · 117,882,880 B
36NoSIMD_C#NoSIMD_C# Skilled12,571
CSHARP
9.0.1
Jan 21, 2025 07:45
199,756,521 ns · 99,994,000 ns · 75,996,000 ns · 151,240,704 B
37Oleg KovalovOleg Kovalov Skilled12,631
GO
go1.23.5
Jan 29, 2025 20:34
248,706,847 ns · 53,948,000 ns · 122,882,000 ns · 117,436,416 B
38izotoffizotoff Expert15,732
GO
go1.15.1
Nov 7, 2025 09:32
297,745,475 ns · 115,604,000 ns · 104,642,000 ns · 111,812,608 B
39Ahmed HusseinAhmed Hussein Apprentice17,882
GO
go1.24.3
May 11, 2025 01:08
329,933,878 ns · 129,150,000 ns · 121,203,000 ns · 150,097,920 B
40CC Apprentice18,218
RUST
rust-1.95.0
May 5, 2026 00:44
318,330,962 ns · 153,815,000 ns · 101,243,000 ns · 117,882,880 B
41Kenneth MaplesKenneth Maples Expert26,760
CPP
g++9.3.0
Dec 17, 2023 07:45
3,125,154,612 ns · 374,636,014 ns · 0 ns · 266,993,664 B
42Huy Duc LeHuy Duc Le Expert29,706
CPP
clang++10.0.0
Mar 7, 2024 07:21
2,484,656,591 ns · 15,201,000 ns · 400,678,000 ns · 267,059,200 B
43Elijah KinElijah Kin Apprentice29,756
CPP
g++9.4.0
Jul 16, 2024 07:15
2,495,060,464 ns · 10,160,000 ns · 406,419,000 ns · 267,743,232 B
44Viktor IarmolaViktor Iarmola Apprentice29,813
CPP
g++9.3.0
Dec 6, 2023 09:34
2,487,189,748 ns · 18,272,000 ns · 399,110,000 ns · 267,636,736 B
45E SequeiraE Sequeira Skilled30,185
CPP
g++13.2.0
Nov 29, 2024 23:12
2,465,645,551 ns · 25,546,000 ns · 397,037,000 ns · 266,731,520 B
46Hayden DonnellyHayden Donnelly Skilled30,606
CPP
clang++18.1.3
Dec 4, 2024 01:47
2,472,681,777 ns · 14,454,000 ns · 414,029,000 ns · 268,247,040 B
47Dan StolyarovDan Stolyarov Apprentice32,045
CPP
clang++18.1.3
Nov 13, 2024 18:12
2,495,660,716 ns · 22,741,000 ns · 425,891,000 ns · 264,138,752 B
48gchebanovgchebanov Expert32,344
CPP
clang++10.0.0
Jul 9, 2023 18:53
2,487,928,134 ns · 45,615,000 ns · 407,203,000 ns · 268,005,376 B
49BenBen Skilled32,397
CPP
g++9.4.0
Aug 1, 2024 14:08
2,475,197,897 ns · 34,192,000 ns · 419,361,000 ns · 266,178,560 B
50Yurkov AlekseyYurkov Aleksey Expert32,433
CPP
g++9.4.0
Jan 2, 2024 18:08
2,236,408,222 ns · 56,882,000 ns · 397,182,000 ns · 266,055,680 B
51Franek KortaFranek Korta Skilled35,416
CPP
g++9.3.0
Jul 17, 2024 21:02
2,573,806,412 ns · 80,006,000 ns · 415,822,000 ns · 264,425,472 B
52LiamLiam Skilled36,240
CPP
g++9.3.0
Mar 18, 2023 20:29
2,587,935,676 ns · 78,284,000 ns · 429,076,000 ns · 267,157,504 B
53Sergey StreminSergey Stremin Expert36,264
RUST
rust-1.67.1
Mar 4, 2023 11:13
2,564,873,705 ns · 76,835,000 ns · 430,861,000 ns · 267,137,024 B
54Bernard TeoBernard Teo Expert36,647
CPP
g++9.3.0
Dec 2, 2023 11:09
2,521,489,617 ns · 77,920,000 ns · 435,143,000 ns · 267,194,368 B
55Vitaliy F.Vitaliy F. Skilled37,899
GO
go1.18
Oct 6, 2023 16:10
3,277,784,279 ns · 530,582,975 ns · 0 ns · 263,053,312 B
56dist1lldist1ll Apprentice41,195
CPP
g++9.4.0
Aug 3, 2024 19:43
2,581,925,850 ns · 576,734,837 ns · 0 ns · 265,576,448 B
57Avinash BodduAvinash Boddu Apprentice42,745
CSHARP
9.0.0-preview.6
Aug 1, 2024 17:04
2,619,341,291 ns · 154,661,000 ns · 443,768,000 ns · 266,874,880 B
58джулисджулис Apprentice42,927
CPP
g++9.4.0
Jun 9, 2024 14:49
2,945,282,486 ns · 600,978,067 ns · 0 ns · 151,592,960 B
59Teodor SpærenTeodor Spæren Novice43,655
CPP
g++9.4.0
Jul 2, 2024 17:06
2,260,184,085 ns · 611,170,286 ns · 0 ns · 267,440,128 B
60Eugene ZhydzetskiEugene Zhydzetski Skilled46,112
GO
go1.22.1
Mar 29, 2024 10:41
3,244,379,749 ns · 645,569,512 ns · 0 ns · 117,305,344 B
61Nadiminty KaundinyaNadiminty Kaundinya Novice49,898
GO
go1.22.5
Jul 15, 2024 17:05
3,232,761,334 ns · 698,575,168 ns · 0 ns · 117,460,992 B
62Ilya AniskovetsIlya Aniskovets Skilled51,102
GO
go1.20.7
Aug 22, 2023 18:24
4,932,428,991 ns · 715,421,028 ns · 0 ns · 115,257,344 B
63AndreyTSAndreyTS Apprentice52,277
GO
go1.20.7
Aug 10, 2023 01:52
5,546,392,461 ns · 731,879,380 ns · 0 ns · 117,067,776 B
64IhebIheb Skilled53,124
CPP
g++9.4.0
Jul 26, 2024 23:52
3,841,353,151 ns · 743,734,430 ns · 0 ns · 134,189,056 B
65Martin StensgårdMartin Stensgård Skilled55,223
CPP
g++9.3.0
May 9, 2023 17:39
6,684,868,125 ns · 773,118,088 ns · 0 ns · 134,463,488 B
66apuxbtapuxbt Skilled58,919
RUST
rust-1.72.1
Sep 27, 2023 14:32
3,131,360,065 ns · 824,870,299 ns · 0 ns · 266,207,232 B
67zypehzypeh Apprentice65,179
RUST
rust-1.72.1
Oct 3, 2023 09:38
6,447,846,038 ns · 912,503,517 ns · 0 ns · 134,279,168 B
68mmalczakmmalczak Skilled70,097
CPP
g++9.3.0
Nov 21, 2023 11:02
5,427,925,213 ns · 77,691,000 ns · 903,673,000 ns · 266,981,376 B
69MylesMyles Skilled71,014
CPP
g++9.4.0
Jul 20, 2024 19:37
5,549,576,487 ns · 79,945,000 ns · 914,253,000 ns · 267,362,304 B
70Victor MerckléVictor Mercklé Grandmaster86,201
CPP
g++14.2.0
Apr 27, 2026 23:49
1,225,726,893 ns · 1,180,841,000 ns · 25,974,000 ns · 151,224,320 B
71Henry CafaroHenry Cafaro Apprentice174,838
CPP
clang++18.1.3
Sep 5, 2024 23:51
6,950,372,400 ns · 1,593,182,000 ns · 854,543,000 ns · 267,284,480 B
72SergeySergey Novice279,082
RUST
rust-1.82.0
Nov 12, 2024 13:08
10,116,330,032 ns · 2,238,663,000 ns · 1,668,484,000 ns · 21,524,480 B
73marcømarcø Novice361,792
CPP
g++13.3.0
May 11, 2025 01:25
5,096,112,962 ns · 4,965,145,000 ns · 99,942,000 ns · 151,191,552 B
74Pavel IvashkovPavel Ivashkov Novice882,511
CPP
g++9.4.0
Jul 30, 2024 20:12
14,297,118,466 ns · 12,355,160,246 ns · 0 ns · 266,289,152 B