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 13:54 | 4,326 | 39,979,445 | 13,842,000 | 0 | 2,482,176 | ||
| 2 | Mar 28, 2026 13:56 | 4,329 | 26,892,296 | 12,865,000 | 989,000 | 2,281,472 | ||
| 3 | Mar 28, 2026 13:54 | 4,330 | 31,854,273 | 12,866,000 | 989,000 | 2,490,368 | ||
| 4 | Mar 28, 2026 13:52 | 4,331 | 43,588,797 | 12,870,000 | 990,000 | 2,502,656 | ||
| 5 | Mar 28, 2026 13:53 | 4,334 | 29,630,732 | 13,870,000 | 0 | 2,281,472 | ||
| 6 | Mar 28, 2026 13:55 | 4,334 | 36,943,192 | 12,878,000 | 990,000 | 2,498,560 | ||
| 7 | Mar 28, 2026 13:56 | 4,334 | 26,399,189 | 12,880,000 | 990,000 | 2,498,560 | ||
| 8 | Mar 28, 2026 13:54 | 4,336 | 30,927,536 | 12,883,000 | 991,000 | 2,494,464 | ||
| 9 | Mar 28, 2026 13:52 | 4,337 | 28,112,267 | 12,888,000 | 991,000 | 2,498,560 | ||
| 10 | Mar 28, 2026 13:54 | 4,337 | 39,186,383 | 13,877,000 | 0 | 2,486,272 | ||
| 11 | Mar 28, 2026 13:54 | 4,337 | 36,352,045 | 12,887,000 | 991,000 | 2,281,472 | ||
| 12 | Mar 28, 2026 13:53 | 4,337 | 33,708,296 | 12,886,000 | 991,000 | 2,281,472 | ||
| 13 | Mar 28, 2026 13:55 | 4,338 | 32,753,804 | 12,892,000 | 991,000 | 2,281,472 | ||
| 14 | Mar 28, 2026 13:52 | 4,338 | 27,493,193 | 12,891,000 | 991,000 | 2,494,464 | ||
| 15 | Mar 28, 2026 13:52 | 4,338 | 34,551,319 | 12,891,000 | 991,000 | 2,281,472 | ||
| 16 | Mar 28, 2026 13:52 | 4,338 | 32,172,407 | 12,892,000 | 991,000 | 2,490,368 | ||
| 17 | Mar 28, 2026 13:54 | 4,339 | 30,819,220 | 12,893,000 | 991,000 | 2,502,656 | ||
| 18 | Mar 28, 2026 13:53 | 4,339 | 31,599,727 | 12,895,000 | 991,000 | 2,494,464 | ||
| 19 | Mar 28, 2026 13:56 | 4,339 | 38,736,914 | 12,894,000 | 991,000 | 2,490,368 | ||
| 20 | Mar 28, 2026 13:55 | 4,339 | 48,232,300 | 12,894,000 | 991,000 | 2,494,464 | ||
| 21 | Mar 28, 2026 13:53 | 4,340 | 37,382,891 | 13,887,000 | 0 | 2,490,368 | ||
| 22 | Mar 28, 2026 13:52 | 4,341 | 38,648,429 | 12,900,000 | 992,000 | 2,281,472 | ||
| 23 | Mar 28, 2026 13:55 | 4,341 | 31,047,891 | 12,900,000 | 992,000 | 2,494,464 | ||
| 24 | Mar 28, 2026 13:55 | 4,341 | 28,203,406 | 12,899,000 | 992,000 | 2,490,368 | ||
| 25 | Mar 28, 2026 13:56 | 4,341 | 32,156,297 | 12,900,000 | 992,000 | 2,498,560 | ||
| 26 | Mar 28, 2026 13:55 | 4,342 | 41,553,950 | 13,894,000 | 0 | 2,281,472 | ||
| 27 | Mar 28, 2026 13:55 | 4,342 | 35,128,912 | 12,903,000 | 992,000 | 2,281,472 | ||
| 28 | Mar 28, 2026 13:53 | 4,342 | 25,392,617 | 12,902,000 | 992,000 | 2,281,472 | ||
| 29 | Mar 28, 2026 13:53 | 4,342 | 39,681,320 | 13,895,000 | 0 | 2,494,464 | ||
| 30 | Mar 28, 2026 13:55 | 4,343 | 36,697,134 | 12,907,000 | 992,000 | 2,281,472 | ||
| 31 | Mar 28, 2026 13:54 | 4,343 | 44,897,966 | 12,906,000 | 992,000 | 2,498,560 | ||
| 32 | Mar 28, 2026 13:55 | 4,344 | 39,952,101 | 12,909,000 | 993,000 | 2,281,472 | ||
| 33 | Mar 28, 2026 13:52 | 4,345 | 31,770,672 | 12,911,000 | 993,000 | 2,498,560 | ||
| 34 | Mar 28, 2026 13:56 | 4,345 | 33,467,261 | 11,918,000 | 1,986,000 | 2,494,464 | ||
| 35 | Mar 28, 2026 13:54 | 4,345 | 31,745,734 | 13,903,000 | 0 | 2,494,464 | ||
| 36 | Mar 28, 2026 13:54 | 4,346 | 38,404,402 | 12,914,000 | 993,000 | 2,498,560 | ||
| 37 | Mar 28, 2026 13:53 | 4,346 | 29,970,267 | 12,839,000 | 1,069,000 | 2,281,472 | ||
| 38 | Mar 28, 2026 13:52 | 4,346 | 27,851,239 | 12,913,000 | 993,000 | 2,281,472 | ||
| 39 | Mar 28, 2026 13:55 | 4,346 | 29,601,892 | 12,913,000 | 993,000 | 2,281,472 | ||
| 40 | Mar 28, 2026 13:54 | 4,346 | 36,880,725 | 12,913,000 | 993,000 | 2,498,560 | ||
| 41 | Mar 28, 2026 13:54 | 4,347 | 44,576,583 | 12,916,000 | 993,000 | 2,281,472 | ||
| 42 | Mar 28, 2026 13:52 | 4,347 | 41,420,484 | 12,918,000 | 993,000 | 2,494,464 | ||
| 43 | Mar 28, 2026 13:53 | 4,347 | 27,126,781 | 12,916,000 | 993,000 | 2,498,560 | ||
| 44 | Mar 28, 2026 13:53 | 4,347 | 24,512,235 | 12,917,000 | 993,000 | 2,486,272 | ||
| 45 | Mar 28, 2026 13:53 | 4,348 | 34,501,115 | 13,915,000 | 0 | 2,498,560 | ||
| 46 | Mar 28, 2026 13:55 | 4,349 | 31,103,493 | 12,923,000 | 994,000 | 2,281,472 | ||
| 47 | Mar 28, 2026 13:53 | 4,350 | 33,027,259 | 11,933,000 | 1,988,000 | 2,494,464 | ||
| 48 | Mar 28, 2026 13:52 | 4,350 | 46,911,534 | 11,933,000 | 1,988,000 | 2,502,656 | ||
| 49 | Mar 28, 2026 13:54 | 4,350 | 42,266,672 | 12,925,000 | 994,000 | 2,494,464 | ||
| 50 | Mar 28, 2026 13:56 | 4,350 | 31,935,396 | 12,927,000 | 994,000 | 2,281,472 | ||
| 51 | Mar 28, 2026 13:52 | 4,350 | 37,070,821 | 12,926,000 | 994,000 | 2,281,472 | ||
| 52 | Mar 28, 2026 13:53 | 4,351 | 33,681,872 | 12,928,000 | 994,000 | 2,490,368 | ||
| 53 | Mar 28, 2026 13:55 | 4,351 | 34,849,828 | 12,928,000 | 994,000 | 2,502,656 | ||
| 54 | Mar 28, 2026 13:53 | 4,352 | 31,373,884 | 11,938,000 | 1,989,000 | 2,490,368 | ||
| 55 | Mar 28, 2026 13:54 | 4,352 | 32,965,900 | 13,926,000 | 0 | 2,281,472 | ||
| 56 | Mar 28, 2026 13:54 | 4,352 | 38,443,110 | 12,932,000 | 994,000 | 2,281,472 | ||
| 57 | Mar 28, 2026 13:52 | 4,353 | 29,152,731 | 11,941,000 | 1,990,000 | 2,281,472 | ||
| 58 | Mar 28, 2026 13:52 | 4,355 | 37,539,163 | 12,940,000 | 995,000 | 2,502,656 | ||
| 59 | Mar 28, 2026 13:55 | 4,357 | 33,823,756 | 12,947,000 | 995,000 | 2,494,464 | ||
| 60 | Mar 28, 2026 13:56 | 4,357 | 29,743,000 | 12,946,000 | 995,000 | 2,281,472 | ||
| 61 | Mar 28, 2026 13:52 | 4,357 | 29,168,496 | 12,947,000 | 995,000 | 2,277,376 | ||
| 62 | Mar 28, 2026 13:52 | 4,359 | 30,840,503 | 11,956,000 | 1,992,000 | 2,281,472 | ||
| 63 | Mar 28, 2026 13:54 | 4,360 | 29,924,809 | 12,955,000 | 996,000 | 2,494,464 | ||
| 64 | Mar 28, 2026 13:56 | 4,361 | 33,103,175 | 12,960,000 | 996,000 | 2,281,472 | ||
| 65 | Mar 28, 2026 13:52 | 4,362 | 27,040,651 | 12,961,000 | 997,000 | 2,494,464 | ||
| 66 | Mar 28, 2026 13:52 | 4,362 | 31,508,855 | 12,961,000 | 997,000 | 2,281,472 | ||
| 67 | Mar 28, 2026 13:52 | 4,363 | 29,599,864 | 12,965,000 | 997,000 | 2,498,560 | ||
| 68 | Mar 28, 2026 13:53 | 4,365 | 29,621,541 | 12,972,000 | 997,000 | 2,281,472 | ||
| 69 | Mar 28, 2026 13:56 | 4,365 | 31,166,103 | 12,972,000 | 997,000 | 2,498,560 | ||
| 70 | Mar 28, 2026 13:52 | 4,366 | 30,391,030 | 12,974,000 | 998,000 | 2,498,560 | ||
| 71 | Mar 28, 2026 13:56 | 4,367 | 27,227,714 | 12,975,000 | 998,000 | 2,490,368 | ||
| 72 | Mar 28, 2026 13:55 | 4,368 | 34,415,005 | 12,981,000 | 998,000 | 2,490,368 | ||
| 73 | Mar 28, 2026 13:55 | 4,368 | 27,797,467 | 12,981,000 | 998,000 | 2,498,560 | ||
| 74 | Mar 28, 2026 13:55 | 4,369 | 29,481,571 | 12,983,000 | 998,000 | 2,281,472 | ||
| 75 | Mar 28, 2026 13:56 | 4,369 | 28,603,292 | 11,985,000 | 1,997,000 | 2,498,560 | ||
| 76 | Mar 28, 2026 13:55 | 4,370 | 33,588,189 | 11,987,000 | 1,997,000 | 2,490,368 | ||
| 77 | Mar 28, 2026 13:52 | 4,371 | 31,935,579 | 12,987,000 | 999,000 | 2,498,560 | ||
| 78 | Mar 28, 2026 13:55 | 4,372 | 31,934,611 | 12,992,000 | 999,000 | 2,490,368 | ||
| 79 | Mar 28, 2026 13:53 | 4,373 | 28,237,659 | 12,996,000 | 999,000 | 2,281,472 | ||
| 80 | Mar 28, 2026 13:53 | 4,373 | 31,721,032 | 12,993,000 | 999,000 | 2,498,560 | ||
| 81 | Mar 28, 2026 13:56 | 4,377 | 32,230,515 | 13,005,000 | 1,000,000 | 2,281,472 | ||
| 82 | Mar 28, 2026 13:54 | 4,378 | 34,883,219 | 13,009,000 | 1,000,000 | 2,498,560 | ||
| 83 | Mar 28, 2026 13:53 | 4,378 | 31,908,063 | 12,010,000 | 2,001,000 | 2,490,368 | ||
| 84 | Mar 28, 2026 13:54 | 4,379 | 33,289,047 | 12,011,000 | 2,001,000 | 2,494,464 | ||
| 85 | Mar 28, 2026 13:53 | 4,379 | 37,235,211 | 12,012,000 | 2,002,000 | 2,535,424 | ||
| 86 | Mar 28, 2026 13:55 | 4,384 | 29,272,297 | 13,027,000 | 1,002,000 | 2,498,560 | ||
| 87 | Mar 28, 2026 13:55 | 4,388 | 27,812,608 | 13,038,000 | 1,002,000 | 2,494,464 | ||
| 88 | Mar 28, 2026 13:55 | 4,390 | 27,485,035 | 12,041,000 | 2,006,000 | 2,498,560 | ||
| 89 | Mar 28, 2026 13:52 | 4,398 | 38,751,613 | 13,070,000 | 1,005,000 | 2,498,560 | ||
| 90 | Mar 28, 2026 13:54 | 4,399 | 36,357,441 | 13,071,000 | 1,005,000 | 2,281,472 |