Blue color from RGB 
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).
Josu San MartinSource Code
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Challenge History
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Run Statistics
| # | Date | Score | Wall Time | CPU User | CPU System | Memory | Error | |
|---|---|---|---|---|---|---|---|---|
| 1 | Apr 12, 2026 23:39 | 3,043 | 67,807,083 | 27,744,000 | 14,863,000 | 151,330,816 | ||
| 2 | Apr 13, 2026 00:39 | 3,045 | 66,730,981 | 27,755,000 | 14,868,000 | 151,437,312 | ||
| 3 | Apr 12, 2026 20:20 | 3,045 | 74,321,764 | 27,760,000 | 14,871,000 | 151,339,008 | ||
| 4 | Apr 12, 2026 20:20 | 3,046 | 70,077,790 | 27,771,000 | 14,877,000 | 151,433,216 | ||
| 5 | Apr 13, 2026 00:39 | 3,047 | 69,089,377 | 27,778,000 | 14,881,000 | 151,433,216 | ||
| 6 | Apr 12, 2026 20:20 | 3,048 | 68,971,432 | 27,787,000 | 14,885,000 | 151,433,216 | ||
| 7 | Apr 13, 2026 00:40 | 3,048 | 72,780,201 | 27,782,000 | 14,883,000 | 151,171,072 | ||
| 8 | Apr 13, 2026 00:40 | 3,048 | 63,295,442 | 27,787,000 | 14,886,000 | 151,433,216 | ||
| 9 | Apr 12, 2026 23:33 | 3,049 | 69,019,368 | 27,798,000 | 14,892,000 | 151,433,216 | ||
| 10 | Apr 13, 2026 00:38 | 3,050 | 64,953,874 | 28,793,000 | 13,900,000 | 151,343,104 | ||
| 11 | Apr 12, 2026 20:20 | 3,050 | 70,740,492 | 27,802,000 | 14,894,000 | 151,433,216 | ||
| 12 | Apr 13, 2026 00:38 | 3,051 | 66,278,684 | 27,818,000 | 14,902,000 | 151,433,216 | ||
| 13 | Apr 13, 2026 00:38 | 3,051 | 67,527,548 | 27,818,000 | 14,902,000 | 151,347,200 | ||
| 14 | Apr 12, 2026 23:33 | 3,051 | 68,665,236 | 28,810,000 | 13,908,000 | 151,433,216 | ||
| 15 | Apr 12, 2026 23:32 | 3,052 | 69,449,289 | 27,822,000 | 14,904,000 | 151,416,832 | ||
| 16 | Apr 13, 2026 00:40 | 3,052 | 65,407,348 | 27,820,000 | 14,903,000 | 151,334,912 | ||
| 17 | Apr 12, 2026 20:19 | 3,053 | 62,258,844 | 27,833,000 | 14,910,000 | 151,433,216 | ||
| 18 | Apr 12, 2026 20:20 | 3,053 | 67,443,372 | 27,835,000 | 14,911,000 | 151,339,008 | ||
| 19 | Apr 13, 2026 00:38 | 3,053 | 67,876,867 | 27,835,000 | 14,911,000 | 151,433,216 | ||
| 20 | Apr 13, 2026 00:39 | 3,053 | 68,182,504 | 27,833,000 | 14,910,000 | 151,334,912 | ||
| 21 | Apr 12, 2026 20:20 | 3,053 | 73,985,381 | 27,834,000 | 14,911,000 | 151,433,216 | ||
| 22 | Apr 13, 2026 00:38 | 3,054 | 72,678,911 | 27,839,000 | 14,914,000 | 151,175,168 | ||
| 23 | Apr 12, 2026 20:20 | 3,054 | 78,987,017 | 28,838,000 | 13,922,000 | 151,433,216 | ||
| 24 | Apr 13, 2026 00:40 | 3,054 | 69,713,359 | 27,837,000 | 14,912,000 | 151,433,216 | ||
| 25 | Apr 13, 2026 00:39 | 3,054 | 67,979,171 | 27,840,000 | 14,914,000 | 151,339,008 | ||
| 26 | Apr 13, 2026 00:39 | 3,054 | 64,948,038 | 27,845,000 | 14,917,000 | 151,334,912 | ||
| 27 | Apr 12, 2026 23:33 | 3,055 | 73,183,229 | 27,849,000 | 14,919,000 | 151,433,216 | ||
| 28 | Apr 12, 2026 20:20 | 3,055 | 67,872,681 | 27,846,000 | 14,917,000 | 151,334,912 | ||
| 29 | Apr 12, 2026 20:20 | 3,055 | 67,697,292 | 27,847,000 | 14,918,000 | 151,425,024 | ||
| 30 | Apr 12, 2026 20:20 | 3,055 | 70,432,805 | 27,853,000 | 14,921,000 | 151,433,216 | ||
| 31 | Apr 12, 2026 20:20 | 3,055 | 71,691,048 | 27,851,000 | 14,920,000 | 151,433,216 | ||
| 32 | Apr 12, 2026 20:20 | 3,055 | 68,671,938 | 27,852,000 | 14,921,000 | 151,433,216 | ||
| 33 | Apr 12, 2026 23:33 | 3,055 | 67,667,080 | 27,848,000 | 14,919,000 | 151,339,008 | ||
| 34 | Apr 13, 2026 00:40 | 3,056 | 66,127,021 | 27,857,000 | 14,923,000 | 151,437,312 | ||
| 35 | Apr 13, 2026 00:39 | 3,057 | 75,630,174 | 27,864,000 | 14,927,000 | 151,433,216 | ||
| 36 | Apr 13, 2026 00:38 | 3,057 | 67,205,814 | 27,865,000 | 14,927,000 | 151,334,912 | ||
| 37 | Apr 13, 2026 00:38 | 3,057 | 68,168,359 | 27,869,000 | 14,930,000 | 151,334,912 | ||
| 38 | Apr 12, 2026 23:32 | 3,058 | 66,406,409 | 27,873,000 | 14,932,000 | 151,343,104 | ||
| 39 | Apr 13, 2026 00:39 | 3,058 | 65,628,769 | 27,873,000 | 14,932,000 | 151,339,008 | ||
| 40 | Apr 13, 2026 00:40 | 3,058 | 73,150,769 | 28,874,000 | 13,939,000 | 151,339,008 | ||
| 41 | Apr 13, 2026 00:06 | 3,058 | 67,438,864 | 27,874,000 | 14,932,000 | 151,347,200 | ||
| 42 | Apr 13, 2026 00:38 | 3,058 | 69,475,190 | 27,881,000 | 14,936,000 | 151,334,912 | ||
| 43 | Apr 13, 2026 00:40 | 3,059 | 67,424,552 | 27,889,000 | 14,940,000 | 151,334,912 | ||
| 44 | Apr 13, 2026 00:40 | 3,059 | 70,049,605 | 27,891,000 | 14,941,000 | 151,343,104 | ||
| 45 | Apr 12, 2026 20:20 | 3,059 | 70,304,007 | 27,885,000 | 14,938,000 | 151,339,008 | ||
| 46 | Apr 13, 2026 00:38 | 3,060 | 69,643,824 | 27,899,000 | 14,946,000 | 151,433,216 | ||
| 47 | Apr 12, 2026 23:33 | 3,060 | 70,674,606 | 27,895,000 | 14,944,000 | 151,433,216 | ||
| 48 | Apr 12, 2026 20:20 | 3,060 | 70,033,904 | 27,895,000 | 14,944,000 | 151,433,216 | ||
| 49 | Apr 13, 2026 00:38 | 3,060 | 66,773,550 | 27,896,000 | 14,944,000 | 151,339,008 | ||
| 50 | Apr 13, 2026 00:06 | 3,061 | 64,865,851 | 27,909,000 | 14,951,000 | 151,433,216 | ||
| 51 | Apr 12, 2026 23:33 | 3,061 | 65,898,003 | 28,902,000 | 13,952,000 | 151,343,104 | ||
| 52 | Apr 13, 2026 00:38 | 3,061 | 66,578,571 | 27,906,000 | 14,949,000 | 151,425,024 | ||
| 53 | Apr 12, 2026 20:20 | 3,061 | 72,674,800 | 27,902,000 | 14,948,000 | 151,433,216 | ||
| 54 | Apr 12, 2026 20:19 | 3,062 | 66,272,009 | 27,913,000 | 14,953,000 | 151,171,072 | ||
| 55 | Apr 13, 2026 00:39 | 3,062 | 67,396,741 | 27,913,000 | 14,953,000 | 151,334,912 | ||
| 56 | Apr 13, 2026 00:39 | 3,063 | 69,325,468 | 27,926,000 | 14,960,000 | 151,429,120 | ||
| 57 | Apr 12, 2026 20:20 | 3,063 | 74,437,252 | 27,927,000 | 14,961,000 | 151,339,008 | ||
| 58 | Apr 12, 2026 23:39 | 3,063 | 75,281,285 | 27,926,000 | 14,960,000 | 151,171,072 | ||
| 59 | Apr 12, 2026 23:39 | 3,063 | 70,560,432 | 28,916,000 | 13,959,000 | 151,334,912 | ||
| 60 | Apr 12, 2026 23:33 | 3,064 | 66,769,556 | 27,928,000 | 14,961,000 | 151,171,072 | ||
| 61 | Apr 12, 2026 20:20 | 3,064 | 66,453,894 | 27,934,000 | 14,965,000 | 151,433,216 | ||
| 62 | Apr 12, 2026 20:20 | 3,064 | 67,164,421 | 28,932,000 | 13,967,000 | 151,171,072 | ||
| 63 | Apr 12, 2026 20:20 | 3,065 | 67,981,526 | 28,938,000 | 13,970,000 | 151,433,216 | ||
| 64 | Apr 12, 2026 23:33 | 3,065 | 69,871,647 | 27,943,000 | 14,969,000 | 151,433,216 | ||
| 65 | Apr 13, 2026 00:38 | 3,065 | 71,636,470 | 27,939,000 | 14,967,000 | 151,425,024 | ||
| 66 | Apr 13, 2026 00:38 | 3,065 | 72,712,020 | 27,943,000 | 14,969,000 | 151,171,072 | ||
| 67 | Apr 12, 2026 23:33 | 3,066 | 66,935,981 | 27,951,000 | 14,974,000 | 151,347,200 | ||
| 68 | Apr 13, 2026 00:39 | 3,066 | 69,155,926 | 27,955,000 | 14,975,000 | 151,339,008 | ||
| 69 | Apr 13, 2026 00:38 | 3,068 | 63,068,311 | 28,971,000 | 13,986,000 | 151,416,832 | ||
| 70 | Apr 12, 2026 23:32 | 3,068 | 69,846,921 | 28,968,000 | 13,985,000 | 151,433,216 | ||
| 71 | Apr 13, 2026 00:39 | 3,069 | 66,291,453 | 27,975,000 | 14,986,000 | 151,334,912 | ||
| 72 | Apr 12, 2026 20:20 | 3,069 | 69,829,706 | 29,976,000 | 12,989,000 | 151,433,216 | ||
| 73 | Apr 13, 2026 00:40 | 3,069 | 64,905,654 | 28,981,000 | 13,991,000 | 151,433,216 | ||
| 74 | Apr 12, 2026 20:20 | 3,069 | 62,962,135 | 28,980,000 | 13,990,000 | 151,326,720 | ||
| 75 | Apr 13, 2026 00:40 | 3,069 | 65,574,431 | 28,973,000 | 13,986,000 | 151,334,912 | ||
| 76 | Apr 13, 2026 00:40 | 3,069 | 65,586,684 | 29,979,000 | 12,991,000 | 151,334,912 | ||
| 77 | Apr 13, 2026 00:38 | 3,070 | 73,267,890 | 27,986,000 | 14,992,000 | 151,171,072 | ||
| 78 | Apr 13, 2026 00:40 | 3,070 | 66,242,954 | 28,986,000 | 13,993,000 | 151,433,216 | ||
| 79 | Apr 13, 2026 00:39 | 3,071 | 68,999,421 | 29,998,000 | 12,999,000 | 151,433,216 | ||
| 80 | Apr 13, 2026 00:38 | 3,071 | 64,831,726 | 28,993,000 | 13,997,000 | 151,330,816 | ||
| 81 | Apr 13, 2026 00:38 | 3,072 | 61,117,839 | 30,003,000 | 13,001,000 | 151,437,312 | ||
| 82 | Apr 13, 2026 00:06 | 3,075 | 65,154,328 | 29,037,000 | 14,018,000 | 151,433,216 | ||
| 83 | Apr 13, 2026 00:39 | 3,076 | 68,587,875 | 29,046,000 | 14,022,000 | 151,339,008 | ||
| 84 | Apr 12, 2026 20:19 | 3,078 | 75,205,099 | 29,058,000 | 14,028,000 | 151,175,168 | ||
| 85 | Apr 12, 2026 23:33 | 3,079 | 69,531,215 | 29,072,000 | 14,035,000 | 151,171,072 | ||
| 86 | Apr 13, 2026 00:38 | 3,084 | 66,919,641 | 29,123,000 | 14,059,000 | 151,339,008 | ||
| 87 | Apr 12, 2026 20:20 | 3,106 | 73,384,920 | 29,329,000 | 14,159,000 | 151,347,200 | ||
| 88 | Apr 12, 2026 20:20 | 3,116 | 78,308,206 | 28,748,000 | 14,870,000 | 151,171,072 | ||
| 89 | Apr 12, 2026 23:33 | 3,131 | 73,176,120 | 28,889,000 | 14,942,000 | 151,433,216 | ||
| 90 | Apr 12, 2026 20:20 | 3,132 | 70,361,220 | 28,896,000 | 14,946,000 | 151,339,008 | ||
| 91 | Apr 12, 2026 23:33 | 3,152 | 64,170,897 | 30,085,000 | 14,040,000 | 151,433,216 | ||
| 92 | Apr 13, 2026 00:39 | 3,191 | 72,370,243 | 30,776,000 | 13,898,000 | 151,343,104 | ||
| 93 | Apr 13, 2026 00:39 | 3,214 | 71,360,958 | 30,995,000 | 13,998,000 | 151,334,912 |