Count uint8 
Count the number of bytes equal to 127 in a binary stream as fast as possible.
Input: 250 000 000 uint8 values in binary on STDIN.
Output: The count of elements equal to 127, printed as a decimal string.
Source Code
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Challenge History
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Run Statistics
| # | Date | Score | Wall Time | CPU User | CPU System | Memory | Error | |
|---|---|---|---|---|---|---|---|---|
| 1 | Mar 28, 2026 14:28 | 4,324 | 30,160,948 | 13,836,000 | 0 | 2,539,520 | ||
| 2 | Mar 28, 2026 14:28 | 4,328 | 29,693,749 | 12,860,000 | 989,000 | 2,539,520 | ||
| 3 | Mar 28, 2026 14:29 | 4,331 | 25,148,408 | 13,860,000 | 0 | 2,498,560 | ||
| 4 | Mar 28, 2026 14:28 | 4,332 | 36,853,931 | 12,871,000 | 990,000 | 2,281,472 | ||
| 5 | Mar 28, 2026 14:29 | 4,332 | 45,285,581 | 12,873,000 | 990,000 | 2,494,464 | ||
| 6 | Mar 28, 2026 14:30 | 4,333 | 35,730,936 | 12,877,000 | 990,000 | 2,490,368 | ||
| 7 | Mar 28, 2026 14:31 | 4,334 | 34,770,554 | 12,880,000 | 990,000 | 2,494,464 | ||
| 8 | Mar 28, 2026 14:28 | 4,334 | 27,417,929 | 12,879,000 | 990,000 | 2,498,560 | ||
| 9 | Mar 28, 2026 14:29 | 4,335 | 27,958,989 | 12,882,000 | 990,000 | 2,494,464 | ||
| 10 | Mar 28, 2026 14:30 | 4,336 | 30,108,903 | 12,883,000 | 991,000 | 2,494,464 | ||
| 11 | Mar 28, 2026 14:27 | 4,336 | 41,828,195 | 12,885,000 | 991,000 | 2,490,368 | ||
| 12 | Mar 28, 2026 14:29 | 4,337 | 41,503,927 | 12,886,000 | 991,000 | 2,281,472 | ||
| 13 | Mar 28, 2026 14:29 | 4,338 | 33,351,941 | 12,891,000 | 991,000 | 2,502,656 | ||
| 14 | Mar 28, 2026 14:27 | 4,338 | 36,890,906 | 12,892,000 | 991,000 | 2,281,472 | ||
| 15 | Mar 28, 2026 14:31 | 4,338 | 34,756,634 | 12,891,000 | 991,000 | 2,494,464 | ||
| 16 | Mar 28, 2026 14:29 | 4,338 | 42,101,130 | 12,890,000 | 991,000 | 2,498,560 | ||
| 17 | Mar 28, 2026 14:28 | 4,338 | 28,888,146 | 11,899,000 | 1,983,000 | 2,502,656 | ||
| 18 | Mar 28, 2026 14:29 | 4,338 | 45,386,456 | 12,890,000 | 991,000 | 2,494,464 | ||
| 19 | Mar 28, 2026 14:28 | 4,338 | 39,054,136 | 12,892,000 | 991,000 | 2,490,368 | ||
| 20 | Mar 28, 2026 14:30 | 4,339 | 29,765,756 | 12,893,000 | 991,000 | 2,281,472 | ||
| 21 | Mar 28, 2026 14:28 | 4,339 | 38,746,477 | 12,893,000 | 991,000 | 2,281,472 | ||
| 22 | Mar 28, 2026 14:30 | 4,339 | 29,809,195 | 12,895,000 | 991,000 | 2,281,472 | ||
| 23 | Mar 28, 2026 14:27 | 4,340 | 37,113,734 | 12,897,000 | 992,000 | 2,490,368 | ||
| 24 | Mar 28, 2026 14:28 | 4,342 | 31,288,075 | 13,895,000 | 0 | 2,277,376 | ||
| 25 | Mar 28, 2026 14:30 | 4,342 | 29,046,611 | 12,903,000 | 992,000 | 2,490,368 | ||
| 26 | Mar 28, 2026 14:31 | 4,342 | 27,930,447 | 12,902,000 | 992,000 | 2,281,472 | ||
| 27 | Mar 28, 2026 14:29 | 4,342 | 30,970,983 | 12,901,000 | 992,000 | 2,498,560 | ||
| 28 | Mar 28, 2026 14:29 | 4,343 | 31,971,405 | 12,906,000 | 992,000 | 2,281,472 | ||
| 29 | Mar 28, 2026 14:30 | 4,343 | 29,275,542 | 12,904,000 | 992,000 | 2,494,464 | ||
| 30 | Mar 28, 2026 14:31 | 4,343 | 28,042,563 | 12,907,000 | 992,000 | 2,498,560 | ||
| 31 | Mar 28, 2026 14:27 | 4,343 | 41,578,274 | 12,904,000 | 992,000 | 2,494,464 | ||
| 32 | Mar 28, 2026 14:31 | 4,343 | 35,272,657 | 13,899,000 | 0 | 2,281,472 | ||
| 33 | Mar 28, 2026 14:27 | 4,343 | 40,525,509 | 12,904,000 | 992,000 | 2,498,560 | ||
| 34 | Mar 28, 2026 14:31 | 4,343 | 35,814,713 | 12,907,000 | 992,000 | 2,281,472 | ||
| 35 | Mar 28, 2026 14:29 | 4,345 | 30,779,379 | 12,910,000 | 993,000 | 2,281,472 | ||
| 36 | Mar 28, 2026 14:28 | 4,345 | 26,616,843 | 12,911,000 | 993,000 | 2,498,560 | ||
| 37 | Mar 28, 2026 14:28 | 4,345 | 31,737,030 | 12,910,000 | 993,000 | 2,498,560 | ||
| 38 | Mar 28, 2026 14:30 | 4,346 | 44,975,939 | 12,913,000 | 993,000 | 2,494,464 | ||
| 39 | Mar 28, 2026 14:27 | 4,346 | 42,946,015 | 13,906,000 | 0 | 2,281,472 | ||
| 40 | Mar 28, 2026 14:29 | 4,347 | 38,563,985 | 11,923,000 | 1,987,000 | 2,498,560 | ||
| 41 | Mar 28, 2026 14:28 | 4,347 | 28,702,696 | 11,923,000 | 1,987,000 | 2,281,472 | ||
| 42 | Mar 28, 2026 14:27 | 4,348 | 30,306,942 | 12,920,000 | 993,000 | 2,498,560 | ||
| 43 | Mar 28, 2026 14:30 | 4,348 | 36,420,381 | 13,915,000 | 0 | 2,490,368 | ||
| 44 | Mar 28, 2026 14:28 | 4,349 | 31,168,453 | 13,916,000 | 0 | 2,498,560 | ||
| 45 | Mar 28, 2026 14:27 | 4,349 | 34,804,511 | 12,923,000 | 994,000 | 2,494,464 | ||
| 46 | Mar 28, 2026 14:29 | 4,349 | 38,071,830 | 13,918,000 | 0 | 2,494,464 | ||
| 47 | Mar 28, 2026 14:27 | 4,349 | 35,673,593 | 12,922,000 | 994,000 | 2,494,464 | ||
| 48 | Mar 28, 2026 14:30 | 4,350 | 33,084,931 | 12,927,000 | 994,000 | 2,498,560 | ||
| 49 | Mar 28, 2026 14:31 | 4,350 | 26,831,325 | 13,921,000 | 0 | 2,486,272 | ||
| 50 | Mar 28, 2026 14:30 | 4,351 | 43,217,001 | 12,930,000 | 994,000 | 2,281,472 | ||
| 51 | Mar 28, 2026 14:29 | 4,352 | 38,177,049 | 12,933,000 | 994,000 | 2,494,464 | ||
| 52 | Mar 28, 2026 14:30 | 4,352 | 43,780,815 | 12,933,000 | 994,000 | 2,494,464 | ||
| 53 | Mar 28, 2026 14:30 | 4,353 | 40,338,887 | 12,936,000 | 995,000 | 2,498,560 | ||
| 54 | Mar 28, 2026 14:30 | 4,354 | 37,273,425 | 12,939,000 | 995,000 | 2,486,272 | ||
| 55 | Mar 28, 2026 14:29 | 4,354 | 35,726,905 | 12,939,000 | 995,000 | 2,494,464 | ||
| 56 | Mar 28, 2026 14:28 | 4,354 | 31,959,613 | 12,937,000 | 995,000 | 2,539,520 | ||
| 57 | Mar 28, 2026 14:30 | 4,354 | 37,884,522 | 12,939,000 | 995,000 | 2,281,472 | ||
| 58 | Mar 28, 2026 14:30 | 4,356 | 30,983,809 | 12,943,000 | 995,000 | 2,498,560 | ||
| 59 | Mar 28, 2026 14:28 | 4,356 | 27,281,388 | 11,949,000 | 1,991,000 | 2,281,472 | ||
| 60 | Mar 28, 2026 14:27 | 4,357 | 36,779,561 | 12,947,000 | 995,000 | 2,281,472 | ||
| 61 | Mar 28, 2026 14:30 | 4,358 | 28,762,670 | 12,949,000 | 996,000 | 2,494,464 | ||
| 62 | Mar 28, 2026 14:31 | 4,358 | 29,576,712 | 12,948,000 | 996,000 | 2,281,472 | ||
| 63 | Mar 28, 2026 14:29 | 4,358 | 40,957,187 | 12,949,000 | 996,000 | 2,281,472 | ||
| 64 | Mar 28, 2026 14:29 | 4,358 | 29,389,539 | 12,951,000 | 996,000 | 2,490,368 | ||
| 65 | Mar 28, 2026 14:28 | 4,358 | 31,341,121 | 11,953,000 | 1,992,000 | 2,498,560 | ||
| 66 | Mar 28, 2026 14:31 | 4,359 | 32,322,255 | 11,957,000 | 1,992,000 | 2,490,368 | ||
| 67 | Mar 28, 2026 14:28 | 4,360 | 31,809,711 | 12,956,000 | 996,000 | 2,490,368 | ||
| 68 | Mar 28, 2026 14:31 | 4,361 | 27,858,642 | 12,960,000 | 996,000 | 2,498,560 | ||
| 69 | Mar 28, 2026 14:31 | 4,361 | 27,627,594 | 12,959,000 | 996,000 | 2,281,472 | ||
| 70 | Mar 28, 2026 14:29 | 4,363 | 31,694,322 | 12,966,000 | 997,000 | 2,498,560 | ||
| 71 | Mar 28, 2026 14:31 | 4,364 | 41,211,003 | 12,967,000 | 997,000 | 2,498,560 | ||
| 72 | Mar 28, 2026 14:30 | 4,365 | 26,744,564 | 12,970,000 | 997,000 | 2,494,464 | ||
| 73 | Mar 28, 2026 14:29 | 4,366 | 29,566,554 | 12,974,000 | 998,000 | 2,498,560 | ||
| 74 | Mar 28, 2026 14:30 | 4,366 | 35,490,509 | 12,973,000 | 997,000 | 2,281,472 | ||
| 75 | Mar 28, 2026 14:28 | 4,367 | 31,231,600 | 12,977,000 | 998,000 | 2,281,472 | ||
| 76 | Mar 28, 2026 14:28 | 4,367 | 35,397,561 | 11,978,000 | 1,996,000 | 2,490,368 | ||
| 77 | Mar 28, 2026 14:30 | 4,367 | 33,059,235 | 12,976,000 | 998,000 | 2,502,656 | ||
| 78 | Mar 28, 2026 14:29 | 4,369 | 35,594,784 | 12,983,000 | 998,000 | 2,494,464 | ||
| 79 | Mar 28, 2026 14:27 | 4,371 | 31,570,433 | 12,987,000 | 999,000 | 2,494,464 | ||
| 80 | Mar 28, 2026 14:28 | 4,372 | 28,179,328 | 11,991,000 | 1,998,000 | 2,498,560 | ||
| 81 | Mar 28, 2026 14:28 | 4,372 | 34,650,640 | 12,990,000 | 999,000 | 2,490,368 | ||
| 82 | Mar 28, 2026 14:27 | 4,373 | 31,829,487 | 11,994,000 | 1,999,000 | 2,281,472 | ||
| 83 | Mar 28, 2026 14:30 | 4,374 | 30,954,055 | 12,999,000 | 999,000 | 2,277,376 | ||
| 84 | Mar 28, 2026 14:28 | 4,380 | 34,484,916 | 13,016,000 | 1,001,000 | 2,281,472 | ||
| 85 | Mar 28, 2026 14:30 | 4,380 | 35,126,467 | 12,013,000 | 2,002,000 | 2,281,472 | ||
| 86 | Mar 28, 2026 14:29 | 4,382 | 30,286,116 | 12,020,000 | 2,003,000 | 2,494,464 | ||
| 87 | Mar 28, 2026 14:27 | 4,383 | 32,646,329 | 13,025,000 | 1,001,000 | 2,281,472 | ||
| 88 | Mar 28, 2026 14:29 | 4,384 | 29,948,920 | 13,027,000 | 1,002,000 | 2,281,472 | ||
| 89 | Mar 28, 2026 14:27 | 4,387 | 27,159,091 | 12,032,000 | 2,005,000 | 2,494,464 | ||
| 90 | Mar 28, 2026 14:27 | 4,388 | 30,254,126 | 13,040,000 | 1,003,000 | 2,281,472 |