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 20:35 | 4,333 | 31,396,632 | 12,877,000 | 990,000 | 2,281,472 | ||
| 2 | Mar 28, 2026 20:36 | 4,334 | 32,038,271 | 12,878,000 | 990,000 | 2,502,656 | ||
| 3 | Mar 28, 2026 20:34 | 4,335 | 29,698,407 | 12,881,000 | 990,000 | 2,494,464 | ||
| 4 | Mar 28, 2026 20:35 | 4,336 | 31,346,060 | 11,892,000 | 1,982,000 | 2,490,368 | ||
| 5 | Mar 28, 2026 20:34 | 4,337 | 32,104,463 | 12,888,000 | 991,000 | 2,498,560 | ||
| 6 | Mar 28, 2026 20:35 | 4,337 | 28,536,740 | 11,896,000 | 1,982,000 | 2,490,368 | ||
| 7 | Mar 28, 2026 20:35 | 4,337 | 40,947,821 | 12,887,000 | 991,000 | 2,494,464 | ||
| 8 | Mar 28, 2026 20:35 | 4,338 | 42,165,470 | 12,892,000 | 991,000 | 2,498,560 | ||
| 9 | Mar 28, 2026 20:34 | 4,339 | 39,867,205 | 12,895,000 | 991,000 | 2,281,472 | ||
| 10 | Mar 28, 2026 20:33 | 4,339 | 30,796,619 | 12,893,000 | 991,000 | 2,494,464 | ||
| 11 | Mar 28, 2026 20:36 | 4,340 | 30,614,566 | 12,897,000 | 992,000 | 2,281,472 | ||
| 12 | Mar 28, 2026 20:35 | 4,340 | 31,754,241 | 12,896,000 | 992,000 | 2,281,472 | ||
| 13 | Mar 28, 2026 20:34 | 4,340 | 29,718,864 | 12,896,000 | 992,000 | 2,494,464 | ||
| 14 | Mar 28, 2026 20:33 | 4,342 | 40,724,187 | 12,903,000 | 992,000 | 2,494,464 | ||
| 15 | Mar 28, 2026 20:33 | 4,342 | 37,568,106 | 12,901,000 | 992,000 | 2,498,560 | ||
| 16 | Mar 28, 2026 20:34 | 4,342 | 41,283,488 | 12,902,000 | 992,000 | 2,502,656 | ||
| 17 | Mar 28, 2026 20:34 | 4,343 | 36,695,175 | 12,904,000 | 992,000 | 2,490,368 | ||
| 18 | Mar 28, 2026 20:33 | 4,343 | 33,126,033 | 12,907,000 | 992,000 | 2,494,464 | ||
| 19 | Mar 28, 2026 20:33 | 4,343 | 32,198,675 | 12,904,000 | 992,000 | 2,494,464 | ||
| 20 | Mar 28, 2026 20:33 | 4,343 | 30,690,526 | 12,905,000 | 992,000 | 2,281,472 | ||
| 21 | Mar 28, 2026 20:35 | 4,343 | 34,670,104 | 12,906,000 | 992,000 | 2,502,656 | ||
| 22 | Mar 28, 2026 20:33 | 4,344 | 40,351,250 | 12,909,000 | 993,000 | 2,502,656 | ||
| 23 | Mar 28, 2026 20:34 | 4,344 | 33,487,592 | 11,916,000 | 1,986,000 | 2,502,656 | ||
| 24 | Mar 28, 2026 20:33 | 4,345 | 28,062,987 | 12,912,000 | 993,000 | 2,494,464 | ||
| 25 | Mar 28, 2026 20:35 | 4,347 | 29,067,293 | 12,916,000 | 993,000 | 2,281,472 | ||
| 26 | Mar 28, 2026 20:34 | 4,347 | 31,954,784 | 12,916,000 | 993,000 | 2,277,376 | ||
| 27 | Mar 28, 2026 20:34 | 4,348 | 36,048,525 | 13,914,000 | 0 | 2,281,472 | ||
| 28 | Mar 28, 2026 20:35 | 4,348 | 35,709,928 | 12,920,000 | 993,000 | 2,498,560 | ||
| 29 | Mar 28, 2026 20:35 | 4,348 | 28,636,569 | 12,920,000 | 993,000 | 2,494,464 | ||
| 30 | Mar 28, 2026 20:34 | 4,348 | 30,833,185 | 12,920,000 | 993,000 | 2,281,472 | ||
| 31 | Mar 28, 2026 20:34 | 4,348 | 31,242,743 | 12,919,000 | 993,000 | 2,494,464 | ||
| 32 | Mar 28, 2026 20:33 | 4,348 | 36,479,009 | 11,927,000 | 1,987,000 | 2,281,472 | ||
| 33 | Mar 28, 2026 20:33 | 4,348 | 34,075,334 | 13,915,000 | 0 | 2,498,560 | ||
| 34 | Mar 28, 2026 20:36 | 4,349 | 36,410,647 | 11,929,000 | 1,988,000 | 2,486,272 | ||
| 35 | Mar 28, 2026 20:33 | 4,352 | 32,840,523 | 11,937,000 | 1,989,000 | 2,281,472 | ||
| 36 | Mar 28, 2026 20:36 | 4,352 | 36,122,505 | 12,931,000 | 994,000 | 2,494,464 | ||
| 37 | Mar 28, 2026 20:36 | 4,352 | 28,368,511 | 12,931,000 | 994,000 | 2,281,472 | ||
| 38 | Mar 28, 2026 20:36 | 4,353 | 40,127,716 | 12,934,000 | 994,000 | 2,490,368 | ||
| 39 | Mar 28, 2026 20:33 | 4,353 | 31,736,005 | 12,935,000 | 995,000 | 2,498,560 | ||
| 40 | Mar 28, 2026 20:33 | 4,353 | 30,813,682 | 12,936,000 | 995,000 | 2,490,368 | ||
| 41 | Mar 28, 2026 20:36 | 4,353 | 33,935,457 | 12,935,000 | 995,000 | 2,486,272 | ||
| 42 | Mar 28, 2026 20:33 | 4,353 | 45,076,327 | 12,935,000 | 995,000 | 2,490,368 | ||
| 43 | Mar 28, 2026 20:36 | 4,354 | 32,027,693 | 11,942,000 | 1,990,000 | 2,494,464 | ||
| 44 | Mar 28, 2026 20:36 | 4,354 | 29,774,714 | 12,938,000 | 995,000 | 2,494,464 | ||
| 45 | Mar 28, 2026 20:35 | 4,355 | 30,450,272 | 11,946,000 | 1,991,000 | 2,494,464 | ||
| 46 | Mar 28, 2026 20:35 | 4,355 | 30,004,869 | 12,942,000 | 995,000 | 2,281,472 | ||
| 47 | Mar 28, 2026 20:35 | 4,355 | 32,679,401 | 12,941,000 | 995,000 | 2,281,472 | ||
| 48 | Mar 28, 2026 20:35 | 4,355 | 38,423,098 | 12,940,000 | 995,000 | 2,490,368 | ||
| 49 | Mar 28, 2026 20:35 | 4,356 | 34,615,846 | 12,944,000 | 995,000 | 2,494,464 | ||
| 50 | Mar 28, 2026 20:35 | 4,356 | 25,951,826 | 12,943,000 | 995,000 | 2,494,464 | ||
| 51 | Mar 28, 2026 20:35 | 4,356 | 27,486,258 | 12,944,000 | 995,000 | 2,281,472 | ||
| 52 | Mar 28, 2026 20:36 | 4,356 | 28,467,747 | 12,945,000 | 995,000 | 2,490,368 | ||
| 53 | Mar 28, 2026 20:33 | 4,356 | 32,146,924 | 12,943,000 | 995,000 | 2,502,656 | ||
| 54 | Mar 28, 2026 20:34 | 4,356 | 26,404,253 | 12,943,000 | 995,000 | 2,281,472 | ||
| 55 | Mar 28, 2026 20:34 | 4,358 | 37,980,117 | 12,949,000 | 996,000 | 2,281,472 | ||
| 56 | Mar 28, 2026 20:35 | 4,358 | 30,519,566 | 11,954,000 | 1,992,000 | 2,281,472 | ||
| 57 | Mar 28, 2026 20:33 | 4,358 | 34,515,203 | 12,951,000 | 996,000 | 2,281,472 | ||
| 58 | Mar 28, 2026 20:34 | 4,359 | 26,115,830 | 12,952,000 | 996,000 | 2,490,368 | ||
| 59 | Mar 28, 2026 20:36 | 4,359 | 34,006,005 | 12,954,000 | 996,000 | 2,498,560 | ||
| 60 | Mar 28, 2026 20:33 | 4,360 | 28,565,007 | 11,958,000 | 1,993,000 | 2,281,472 | ||
| 61 | Mar 28, 2026 20:36 | 4,360 | 26,650,162 | 12,956,000 | 996,000 | 2,498,560 | ||
| 62 | Mar 28, 2026 20:33 | 4,360 | 32,433,565 | 12,957,000 | 996,000 | 2,502,656 | ||
| 63 | Mar 28, 2026 20:34 | 4,360 | 30,242,483 | 11,959,000 | 1,993,000 | 2,490,368 | ||
| 64 | Mar 28, 2026 20:33 | 4,362 | 30,463,642 | 12,962,000 | 997,000 | 2,281,472 | ||
| 65 | Mar 28, 2026 20:34 | 4,364 | 29,579,803 | 12,967,000 | 997,000 | 2,494,464 | ||
| 66 | Mar 28, 2026 20:36 | 4,364 | 32,534,303 | 11,971,000 | 1,995,000 | 2,498,560 | ||
| 67 | Mar 28, 2026 20:35 | 4,366 | 29,535,374 | 12,974,000 | 998,000 | 2,498,560 | ||
| 68 | Mar 28, 2026 20:36 | 4,366 | 31,357,965 | 11,975,000 | 1,995,000 | 2,490,368 | ||
| 69 | Mar 28, 2026 20:36 | 4,367 | 27,667,687 | 12,977,000 | 998,000 | 2,498,560 | ||
| 70 | Mar 28, 2026 20:35 | 4,367 | 44,632,037 | 12,976,000 | 998,000 | 2,281,472 | ||
| 71 | Mar 28, 2026 20:33 | 4,369 | 32,494,784 | 11,985,000 | 1,997,000 | 2,281,472 | ||
| 72 | Mar 28, 2026 20:33 | 4,370 | 28,177,114 | 11,986,000 | 1,997,000 | 2,494,464 | ||
| 73 | Mar 28, 2026 20:34 | 4,370 | 29,741,688 | 11,987,000 | 1,997,000 | 2,539,520 | ||
| 74 | Mar 28, 2026 20:36 | 4,370 | 30,881,480 | 12,986,000 | 998,000 | 2,281,472 | ||
| 75 | Mar 28, 2026 20:35 | 4,370 | 30,707,735 | 11,986,000 | 1,997,000 | 2,494,464 | ||
| 76 | Mar 28, 2026 20:36 | 4,371 | 32,109,468 | 12,987,000 | 999,000 | 2,490,368 | ||
| 77 | Mar 28, 2026 20:34 | 4,371 | 30,464,070 | 11,990,000 | 1,998,000 | 2,281,472 | ||
| 78 | Mar 28, 2026 20:33 | 4,373 | 30,459,695 | 12,994,000 | 999,000 | 2,490,368 | ||
| 79 | Mar 28, 2026 20:33 | 4,375 | 29,971,589 | 12,001,000 | 2,000,000 | 2,490,368 | ||
| 80 | Mar 28, 2026 20:34 | 4,375 | 31,103,931 | 12,000,000 | 2,000,000 | 2,281,472 | ||
| 81 | Mar 28, 2026 20:34 | 4,377 | 29,717,356 | 13,007,000 | 1,000,000 | 2,281,472 | ||
| 82 | Mar 28, 2026 20:35 | 4,378 | 31,604,760 | 13,008,000 | 1,000,000 | 2,498,560 | ||
| 83 | Mar 28, 2026 20:36 | 4,378 | 28,428,068 | 12,008,000 | 2,001,000 | 2,281,472 | ||
| 84 | Mar 28, 2026 20:33 | 4,378 | 35,241,407 | 13,008,000 | 1,000,000 | 2,494,464 | ||
| 85 | Mar 28, 2026 20:35 | 4,381 | 35,586,610 | 12,016,000 | 2,002,000 | 2,281,472 | ||
| 86 | Mar 28, 2026 20:35 | 4,385 | 28,899,101 | 12,028,000 | 2,004,000 | 2,281,472 | ||
| 87 | Mar 28, 2026 20:34 | 4,406 | 32,351,148 | 13,091,000 | 1,007,000 | 2,494,464 | ||
| 88 | Mar 28, 2026 20:34 | 4,456 | 39,962,183 | 13,240,000 | 1,018,000 | 2,490,368 | ||
| 89 | Mar 28, 2026 20:34 | 4,504 | 30,847,455 | 13,385,000 | 1,029,000 | 2,490,368 | ||
| 90 | Mar 28, 2026 20:34 | 4,594 | 40,524,374 | 13,651,000 | 1,050,000 | 2,502,656 |