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 18:37 | 4,332 | 28,240,587 | 12,873,000 | 990,000 | 2,281,472 | ||
| 2 | Mar 28, 2026 18:36 | 4,333 | 34,129,363 | 12,798,000 | 1,066,000 | 2,494,464 | ||
| 3 | Mar 28, 2026 18:35 | 4,336 | 31,801,088 | 12,884,000 | 991,000 | 2,494,464 | ||
| 4 | Mar 28, 2026 18:39 | 4,336 | 49,536,130 | 12,884,000 | 991,000 | 2,498,560 | ||
| 5 | Mar 28, 2026 18:36 | 4,336 | 25,276,849 | 11,894,000 | 1,982,000 | 2,494,464 | ||
| 6 | Mar 28, 2026 18:36 | 4,337 | 29,762,270 | 12,887,000 | 991,000 | 2,486,272 | ||
| 7 | Mar 28, 2026 18:38 | 4,337 | 32,364,400 | 12,886,000 | 991,000 | 2,498,560 | ||
| 8 | Mar 28, 2026 18:35 | 4,337 | 35,605,151 | 12,887,000 | 991,000 | 2,498,560 | ||
| 9 | Mar 28, 2026 18:36 | 4,337 | 23,887,053 | 12,887,000 | 991,000 | 2,277,376 | ||
| 10 | Mar 28, 2026 18:35 | 4,338 | 40,328,283 | 12,891,000 | 991,000 | 2,498,560 | ||
| 11 | Mar 28, 2026 18:35 | 4,338 | 29,873,235 | 12,890,000 | 991,000 | 2,490,368 | ||
| 12 | Mar 28, 2026 18:37 | 4,338 | 35,272,355 | 12,813,000 | 1,067,000 | 2,281,472 | ||
| 13 | Mar 28, 2026 18:38 | 4,339 | 31,039,020 | 12,894,000 | 991,000 | 2,482,176 | ||
| 14 | Mar 28, 2026 18:38 | 4,339 | 31,912,699 | 13,886,000 | 0 | 2,498,560 | ||
| 15 | Mar 28, 2026 18:36 | 4,339 | 27,455,801 | 12,894,000 | 991,000 | 2,498,560 | ||
| 16 | Mar 28, 2026 18:37 | 4,340 | 29,138,412 | 12,896,000 | 992,000 | 2,486,272 | ||
| 17 | Mar 28, 2026 18:36 | 4,340 | 33,606,551 | 12,896,000 | 992,000 | 2,281,472 | ||
| 18 | Mar 28, 2026 18:38 | 4,341 | 31,984,994 | 13,891,000 | 0 | 2,486,272 | ||
| 19 | Mar 28, 2026 18:35 | 4,341 | 43,715,933 | 12,900,000 | 992,000 | 2,281,472 | ||
| 20 | Mar 28, 2026 18:36 | 4,341 | 32,881,656 | 12,900,000 | 992,000 | 2,498,560 | ||
| 21 | Mar 28, 2026 18:39 | 4,342 | 39,421,709 | 12,901,000 | 992,000 | 2,494,464 | ||
| 22 | Mar 28, 2026 18:37 | 4,342 | 40,358,094 | 11,910,000 | 1,985,000 | 2,494,464 | ||
| 23 | Mar 28, 2026 18:35 | 4,342 | 31,167,333 | 12,903,000 | 992,000 | 2,494,464 | ||
| 24 | Mar 28, 2026 18:38 | 4,342 | 31,761,413 | 13,894,000 | 0 | 2,490,368 | ||
| 25 | Mar 28, 2026 18:37 | 4,343 | 29,613,594 | 12,906,000 | 992,000 | 2,498,560 | ||
| 26 | Mar 28, 2026 18:36 | 4,343 | 32,448,758 | 12,906,000 | 992,000 | 2,281,472 | ||
| 27 | Mar 28, 2026 18:37 | 4,344 | 46,254,043 | 12,909,000 | 993,000 | 2,490,368 | ||
| 28 | Mar 28, 2026 18:39 | 4,345 | 29,328,181 | 12,911,000 | 993,000 | 2,494,464 | ||
| 29 | Mar 28, 2026 18:35 | 4,345 | 31,622,136 | 12,910,000 | 993,000 | 2,539,520 | ||
| 30 | Mar 28, 2026 18:37 | 4,345 | 30,229,171 | 11,919,000 | 1,986,000 | 2,498,560 | ||
| 31 | Mar 28, 2026 18:36 | 4,346 | 33,735,021 | 12,913,000 | 993,000 | 2,494,464 | ||
| 32 | Mar 28, 2026 18:38 | 4,347 | 25,815,728 | 12,918,000 | 993,000 | 2,281,472 | ||
| 33 | Mar 28, 2026 18:37 | 4,347 | 28,888,082 | 12,916,000 | 993,000 | 2,490,368 | ||
| 34 | Mar 28, 2026 18:37 | 4,347 | 27,206,151 | 12,918,000 | 993,000 | 2,502,656 | ||
| 35 | Mar 28, 2026 18:37 | 4,347 | 26,939,341 | 12,918,000 | 993,000 | 2,281,472 | ||
| 36 | Mar 28, 2026 18:38 | 4,348 | 34,954,503 | 11,926,000 | 1,987,000 | 2,281,472 | ||
| 37 | Mar 28, 2026 18:36 | 4,348 | 28,454,183 | 11,926,000 | 1,987,000 | 2,281,472 | ||
| 38 | Mar 28, 2026 18:38 | 4,349 | 44,598,141 | 12,923,000 | 994,000 | 2,486,272 | ||
| 39 | Mar 28, 2026 18:38 | 4,349 | 32,722,748 | 12,922,000 | 994,000 | 2,281,472 | ||
| 40 | Mar 28, 2026 18:35 | 4,350 | 46,579,037 | 12,926,000 | 994,000 | 2,281,472 | ||
| 41 | Mar 28, 2026 18:37 | 4,350 | 31,457,210 | 12,927,000 | 994,000 | 2,490,368 | ||
| 42 | Mar 28, 2026 18:35 | 4,350 | 30,789,903 | 11,931,000 | 1,988,000 | 2,494,464 | ||
| 43 | Mar 28, 2026 18:35 | 4,350 | 31,138,702 | 12,926,000 | 994,000 | 2,281,472 | ||
| 44 | Mar 28, 2026 18:38 | 4,351 | 33,765,531 | 12,929,000 | 994,000 | 2,498,560 | ||
| 45 | Mar 28, 2026 18:37 | 4,353 | 29,512,107 | 12,934,000 | 994,000 | 2,281,472 | ||
| 46 | Mar 28, 2026 18:38 | 4,353 | 35,470,465 | 13,928,000 | 0 | 2,494,464 | ||
| 47 | Mar 28, 2026 18:37 | 4,355 | 30,401,249 | 12,942,000 | 995,000 | 2,281,472 | ||
| 48 | Mar 28, 2026 18:35 | 4,356 | 30,371,005 | 12,943,000 | 995,000 | 2,498,560 | ||
| 49 | Mar 28, 2026 18:38 | 4,356 | 26,947,190 | 12,945,000 | 995,000 | 2,281,472 | ||
| 50 | Mar 28, 2026 18:37 | 4,357 | 34,872,837 | 12,946,000 | 995,000 | 2,281,472 | ||
| 51 | Mar 28, 2026 18:38 | 4,357 | 37,092,934 | 11,951,000 | 1,991,000 | 2,486,272 | ||
| 52 | Mar 28, 2026 18:36 | 4,357 | 31,202,944 | 12,947,000 | 995,000 | 2,490,368 | ||
| 53 | Mar 28, 2026 18:35 | 4,360 | 26,585,399 | 12,955,000 | 996,000 | 2,281,472 | ||
| 54 | Mar 28, 2026 18:36 | 4,360 | 33,362,661 | 12,955,000 | 996,000 | 2,494,464 | ||
| 55 | Mar 28, 2026 18:36 | 4,360 | 36,856,856 | 12,957,000 | 996,000 | 2,486,272 | ||
| 56 | Mar 28, 2026 18:36 | 4,360 | 33,151,534 | 12,956,000 | 996,000 | 2,281,472 | ||
| 57 | Mar 28, 2026 18:35 | 4,361 | 27,008,519 | 12,958,000 | 996,000 | 2,498,560 | ||
| 58 | Mar 28, 2026 18:35 | 4,361 | 29,865,270 | 12,960,000 | 996,000 | 2,281,472 | ||
| 59 | Mar 28, 2026 18:39 | 4,362 | 27,691,359 | 12,962,000 | 997,000 | 2,281,472 | ||
| 60 | Mar 28, 2026 18:38 | 4,362 | 29,513,349 | 12,961,000 | 997,000 | 2,494,464 | ||
| 61 | Mar 28, 2026 18:37 | 4,363 | 43,314,906 | 11,969,000 | 1,994,000 | 2,494,464 | ||
| 62 | Mar 28, 2026 18:37 | 4,364 | 31,510,669 | 12,967,000 | 997,000 | 2,281,472 | ||
| 63 | Mar 28, 2026 18:39 | 4,364 | 36,471,387 | 12,967,000 | 997,000 | 2,494,464 | ||
| 64 | Mar 28, 2026 18:38 | 4,364 | 29,338,282 | 12,969,000 | 997,000 | 2,502,656 | ||
| 65 | Mar 28, 2026 18:38 | 4,365 | 37,442,342 | 11,974,000 | 1,995,000 | 2,281,472 | ||
| 66 | Mar 28, 2026 18:36 | 4,365 | 27,385,394 | 11,972,000 | 1,995,000 | 2,281,472 | ||
| 67 | Mar 28, 2026 18:36 | 4,365 | 31,253,347 | 12,970,000 | 997,000 | 2,539,520 | ||
| 68 | Mar 28, 2026 18:39 | 4,367 | 27,134,996 | 11,977,000 | 1,996,000 | 2,535,424 | ||
| 69 | Mar 28, 2026 18:37 | 4,367 | 31,583,370 | 12,975,000 | 998,000 | 2,281,472 | ||
| 70 | Mar 28, 2026 18:38 | 4,367 | 35,229,663 | 12,975,000 | 998,000 | 2,498,560 | ||
| 71 | Mar 28, 2026 18:37 | 4,367 | 27,530,810 | 12,976,000 | 998,000 | 2,281,472 | ||
| 72 | Mar 28, 2026 18:38 | 4,367 | 31,664,391 | 11,977,000 | 1,996,000 | 2,498,560 | ||
| 73 | Mar 28, 2026 18:37 | 4,368 | 34,448,084 | 12,981,000 | 998,000 | 2,281,472 | ||
| 74 | Mar 28, 2026 18:37 | 4,368 | 27,733,458 | 11,981,000 | 1,996,000 | 2,498,560 | ||
| 75 | Mar 28, 2026 18:38 | 4,369 | 35,007,756 | 12,983,000 | 998,000 | 2,498,560 | ||
| 76 | Mar 28, 2026 18:38 | 4,369 | 33,475,071 | 11,985,000 | 1,997,000 | 2,498,560 | ||
| 77 | Mar 28, 2026 18:38 | 4,373 | 34,729,111 | 11,996,000 | 1,999,000 | 2,281,472 | ||
| 78 | Mar 28, 2026 18:38 | 4,373 | 35,645,520 | 11,996,000 | 1,999,000 | 2,498,560 | ||
| 79 | Mar 28, 2026 18:36 | 4,373 | 41,362,703 | 12,995,000 | 999,000 | 2,281,472 | ||
| 80 | Mar 28, 2026 18:38 | 4,373 | 28,630,986 | 12,995,000 | 999,000 | 2,498,560 | ||
| 81 | Mar 28, 2026 18:36 | 4,375 | 36,747,306 | 13,000,000 | 1,000,000 | 2,281,472 | ||
| 82 | Mar 28, 2026 18:36 | 4,376 | 29,803,190 | 12,004,000 | 2,000,000 | 2,281,472 | ||
| 83 | Mar 28, 2026 18:36 | 4,377 | 37,020,087 | 12,006,000 | 2,001,000 | 2,494,464 | ||
| 84 | Mar 28, 2026 18:35 | 4,378 | 32,003,715 | 13,010,000 | 1,000,000 | 2,281,472 | ||
| 85 | Mar 28, 2026 18:37 | 4,380 | 28,571,907 | 12,013,000 | 2,002,000 | 2,281,472 | ||
| 86 | Mar 28, 2026 18:36 | 4,382 | 39,640,995 | 12,019,000 | 2,003,000 | 2,281,472 | ||
| 87 | Mar 28, 2026 18:38 | 4,383 | 29,101,656 | 12,022,000 | 2,003,000 | 2,494,464 | ||
| 88 | Mar 28, 2026 18:37 | 4,384 | 36,182,483 | 12,025,000 | 2,004,000 | 2,490,368 | ||
| 89 | Mar 28, 2026 18:37 | 4,387 | 38,614,963 | 13,037,000 | 1,002,000 | 2,498,560 | ||
| 90 | Mar 28, 2026 18:37 | 4,398 | 29,794,733 | 12,064,000 | 2,010,000 | 2,490,368 |