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 17:46 | 4,327 | 29,963,198 | 12,858,000 | 989,000 | 2,490,368 | ||
| 2 | Mar 28, 2026 17:48 | 4,333 | 46,261,486 | 12,877,000 | 990,000 | 2,494,464 | ||
| 3 | Mar 28, 2026 17:46 | 4,334 | 39,889,510 | 12,880,000 | 990,000 | 2,494,464 | ||
| 4 | Mar 28, 2026 17:48 | 4,335 | 43,801,508 | 12,882,000 | 990,000 | 2,494,464 | ||
| 5 | Mar 28, 2026 17:47 | 4,335 | 43,572,530 | 12,882,000 | 990,000 | 2,281,472 | ||
| 6 | Mar 28, 2026 17:45 | 4,336 | 39,818,227 | 12,883,000 | 991,000 | 2,494,464 | ||
| 7 | Mar 28, 2026 17:45 | 4,337 | 28,948,862 | 12,887,000 | 991,000 | 2,494,464 | ||
| 8 | Mar 28, 2026 17:45 | 4,337 | 33,377,043 | 12,886,000 | 991,000 | 2,490,368 | ||
| 9 | Mar 28, 2026 17:47 | 4,337 | 30,945,336 | 12,886,000 | 991,000 | 2,490,368 | ||
| 10 | Mar 28, 2026 17:45 | 4,338 | 37,732,757 | 12,891,000 | 991,000 | 2,281,472 | ||
| 11 | Mar 28, 2026 17:45 | 4,338 | 35,727,972 | 13,881,000 | 0 | 2,490,368 | ||
| 12 | Mar 28, 2026 17:48 | 4,339 | 38,546,144 | 12,894,000 | 991,000 | 2,490,368 | ||
| 13 | Mar 28, 2026 17:46 | 4,340 | 31,731,544 | 12,897,000 | 992,000 | 2,490,368 | ||
| 14 | Mar 28, 2026 17:47 | 4,340 | 25,735,714 | 12,896,000 | 992,000 | 2,490,368 | ||
| 15 | Mar 28, 2026 17:46 | 4,340 | 44,850,822 | 11,904,000 | 1,984,000 | 2,494,464 | ||
| 16 | Mar 28, 2026 17:48 | 4,341 | 43,395,314 | 12,899,000 | 992,000 | 2,281,472 | ||
| 17 | Mar 28, 2026 17:46 | 4,341 | 38,515,153 | 12,898,000 | 992,000 | 2,281,472 | ||
| 18 | Mar 28, 2026 17:46 | 4,341 | 31,426,984 | 12,900,000 | 992,000 | 2,498,560 | ||
| 19 | Mar 28, 2026 17:47 | 4,342 | 34,584,729 | 12,902,000 | 992,000 | 2,490,368 | ||
| 20 | Mar 28, 2026 17:45 | 4,342 | 29,769,984 | 12,902,000 | 992,000 | 2,490,368 | ||
| 21 | Mar 28, 2026 17:48 | 4,342 | 27,597,281 | 12,903,000 | 992,000 | 2,281,472 | ||
| 22 | Mar 28, 2026 17:47 | 4,343 | 29,413,579 | 12,904,000 | 992,000 | 2,494,464 | ||
| 23 | Mar 28, 2026 17:45 | 4,343 | 37,934,379 | 12,905,000 | 992,000 | 2,502,656 | ||
| 24 | Mar 28, 2026 17:46 | 4,343 | 38,214,719 | 12,907,000 | 992,000 | 2,498,560 | ||
| 25 | Mar 28, 2026 17:47 | 4,343 | 44,419,356 | 12,906,000 | 992,000 | 2,281,472 | ||
| 26 | Mar 28, 2026 17:48 | 4,343 | 35,841,923 | 12,904,000 | 992,000 | 2,281,472 | ||
| 27 | Mar 28, 2026 17:45 | 4,343 | 40,749,748 | 12,905,000 | 992,000 | 2,498,560 | ||
| 28 | Mar 28, 2026 17:46 | 4,344 | 27,831,857 | 11,915,000 | 1,985,000 | 2,506,752 | ||
| 29 | Mar 28, 2026 17:46 | 4,345 | 35,798,234 | 12,912,000 | 993,000 | 2,281,472 | ||
| 30 | Mar 28, 2026 17:45 | 4,346 | 33,135,008 | 13,907,000 | 0 | 2,281,472 | ||
| 31 | Mar 28, 2026 17:47 | 4,347 | 29,255,819 | 12,917,000 | 993,000 | 2,486,272 | ||
| 32 | Mar 28, 2026 17:48 | 4,347 | 33,107,334 | 12,916,000 | 993,000 | 2,498,560 | ||
| 33 | Mar 28, 2026 17:45 | 4,347 | 41,232,215 | 13,909,000 | 0 | 2,281,472 | ||
| 34 | Mar 28, 2026 17:48 | 4,347 | 29,407,116 | 12,916,000 | 993,000 | 2,281,472 | ||
| 35 | Mar 28, 2026 17:45 | 4,348 | 26,588,264 | 12,921,000 | 993,000 | 2,281,472 | ||
| 36 | Mar 28, 2026 17:48 | 4,348 | 32,396,941 | 12,919,000 | 993,000 | 2,281,472 | ||
| 37 | Mar 28, 2026 17:46 | 4,349 | 29,764,792 | 12,923,000 | 994,000 | 2,277,376 | ||
| 38 | Mar 28, 2026 17:46 | 4,349 | 39,883,512 | 12,924,000 | 994,000 | 2,498,560 | ||
| 39 | Mar 28, 2026 17:47 | 4,349 | 32,530,601 | 12,924,000 | 994,000 | 2,490,368 | ||
| 40 | Mar 28, 2026 17:45 | 4,349 | 29,286,891 | 12,922,000 | 994,000 | 2,281,472 | ||
| 41 | Mar 28, 2026 17:46 | 4,349 | 29,380,236 | 12,923,000 | 994,000 | 2,486,272 | ||
| 42 | Mar 28, 2026 17:47 | 4,350 | 28,034,896 | 12,927,000 | 994,000 | 2,535,424 | ||
| 43 | Mar 28, 2026 17:48 | 4,350 | 25,550,236 | 12,925,000 | 994,000 | 2,281,472 | ||
| 44 | Mar 28, 2026 17:47 | 4,350 | 27,616,888 | 11,931,000 | 1,988,000 | 2,502,656 | ||
| 45 | Mar 28, 2026 17:47 | 4,350 | 33,356,013 | 13,919,000 | 0 | 2,490,368 | ||
| 46 | Mar 28, 2026 17:46 | 4,350 | 28,397,519 | 12,927,000 | 994,000 | 2,494,464 | ||
| 47 | Mar 28, 2026 17:46 | 4,350 | 26,325,926 | 11,933,000 | 1,988,000 | 2,498,560 | ||
| 48 | Mar 28, 2026 17:48 | 4,351 | 31,748,382 | 12,930,000 | 994,000 | 2,486,272 | ||
| 49 | Mar 28, 2026 17:47 | 4,352 | 34,640,605 | 12,931,000 | 994,000 | 2,281,472 | ||
| 50 | Mar 28, 2026 17:47 | 4,352 | 38,185,650 | 12,931,000 | 994,000 | 2,281,472 | ||
| 51 | Mar 28, 2026 17:48 | 4,352 | 34,372,895 | 12,933,000 | 994,000 | 2,490,368 | ||
| 52 | Mar 28, 2026 17:45 | 4,353 | 28,813,211 | 12,934,000 | 994,000 | 2,535,424 | ||
| 53 | Mar 28, 2026 17:47 | 4,353 | 37,538,241 | 12,934,000 | 994,000 | 2,281,472 | ||
| 54 | Mar 28, 2026 17:46 | 4,354 | 28,757,136 | 12,937,000 | 995,000 | 2,502,656 | ||
| 55 | Mar 28, 2026 17:48 | 4,354 | 41,552,935 | 12,938,000 | 995,000 | 2,281,472 | ||
| 56 | Mar 28, 2026 17:48 | 4,356 | 29,503,732 | 11,948,000 | 1,991,000 | 2,494,464 | ||
| 57 | Mar 28, 2026 17:46 | 4,356 | 31,634,870 | 12,943,000 | 995,000 | 2,494,464 | ||
| 58 | Mar 28, 2026 17:48 | 4,357 | 40,841,653 | 12,947,000 | 995,000 | 2,494,464 | ||
| 59 | Mar 28, 2026 17:48 | 4,358 | 31,459,563 | 12,950,000 | 996,000 | 2,281,472 | ||
| 60 | Mar 28, 2026 17:48 | 4,358 | 28,119,204 | 12,950,000 | 996,000 | 2,281,472 | ||
| 61 | Mar 28, 2026 17:47 | 4,359 | 36,163,855 | 11,956,000 | 1,992,000 | 2,498,560 | ||
| 62 | Mar 28, 2026 17:47 | 4,360 | 32,816,281 | 12,955,000 | 996,000 | 2,494,464 | ||
| 63 | Mar 28, 2026 17:45 | 4,361 | 26,753,272 | 12,959,000 | 996,000 | 2,506,752 | ||
| 64 | Mar 28, 2026 17:45 | 4,361 | 27,454,546 | 12,958,000 | 996,000 | 2,281,472 | ||
| 65 | Mar 28, 2026 17:46 | 4,361 | 31,074,635 | 12,960,000 | 996,000 | 2,281,472 | ||
| 66 | Mar 28, 2026 17:47 | 4,363 | 35,473,950 | 12,965,000 | 997,000 | 2,281,472 | ||
| 67 | Mar 28, 2026 17:47 | 4,363 | 37,955,369 | 12,964,000 | 997,000 | 2,281,472 | ||
| 68 | Mar 28, 2026 17:47 | 4,363 | 27,318,325 | 11,968,000 | 1,994,000 | 2,535,424 | ||
| 69 | Mar 28, 2026 17:45 | 4,363 | 34,492,072 | 12,963,000 | 997,000 | 2,281,472 | ||
| 70 | Mar 28, 2026 17:47 | 4,364 | 29,815,659 | 12,967,000 | 997,000 | 2,486,272 | ||
| 71 | Mar 28, 2026 17:46 | 4,364 | 31,423,662 | 11,970,000 | 1,995,000 | 2,494,464 | ||
| 72 | Mar 28, 2026 17:48 | 4,364 | 31,079,292 | 12,969,000 | 997,000 | 2,486,272 | ||
| 73 | Mar 28, 2026 17:45 | 4,365 | 41,595,136 | 12,971,000 | 997,000 | 2,281,472 | ||
| 74 | Mar 28, 2026 17:46 | 4,366 | 28,405,651 | 12,974,000 | 998,000 | 2,490,368 | ||
| 75 | Mar 28, 2026 17:48 | 4,367 | 29,087,383 | 11,979,000 | 1,996,000 | 2,494,464 | ||
| 76 | Mar 28, 2026 17:45 | 4,367 | 30,001,262 | 12,977,000 | 998,000 | 2,502,656 | ||
| 77 | Mar 28, 2026 17:46 | 4,368 | 36,825,539 | 12,980,000 | 998,000 | 2,281,472 | ||
| 78 | Mar 28, 2026 17:46 | 4,369 | 35,039,074 | 13,981,000 | 0 | 2,490,368 | ||
| 79 | Mar 28, 2026 17:48 | 4,369 | 26,103,853 | 12,983,000 | 998,000 | 2,498,560 | ||
| 80 | Mar 28, 2026 17:48 | 4,372 | 30,040,321 | 12,990,000 | 999,000 | 2,277,376 | ||
| 81 | Mar 28, 2026 17:45 | 4,372 | 31,857,507 | 12,991,000 | 999,000 | 2,281,472 | ||
| 82 | Mar 28, 2026 17:46 | 4,376 | 34,660,620 | 12,002,000 | 2,000,000 | 2,535,424 | ||
| 83 | Mar 28, 2026 17:46 | 4,379 | 26,259,186 | 13,012,000 | 1,000,000 | 2,281,472 | ||
| 84 | Mar 28, 2026 17:48 | 4,380 | 29,192,128 | 12,015,000 | 2,002,000 | 2,535,424 | ||
| 85 | Mar 28, 2026 17:46 | 4,381 | 49,880,710 | 13,019,000 | 1,001,000 | 2,281,472 | ||
| 86 | Mar 28, 2026 17:45 | 4,383 | 41,462,682 | 13,025,000 | 1,001,000 | 2,281,472 | ||
| 87 | Mar 28, 2026 17:48 | 4,398 | 40,865,155 | 13,069,000 | 1,005,000 | 2,498,560 | ||
| 88 | Mar 28, 2026 17:47 | 4,399 | 34,852,795 | 12,067,000 | 2,011,000 | 2,281,472 | ||
| 89 | Mar 28, 2026 17:45 | 4,401 | 25,548,445 | 12,071,000 | 2,011,000 | 2,273,280 | ||
| 90 | Mar 28, 2026 17:48 | 4,406 | 34,714,377 | 12,085,000 | 2,014,000 | 2,281,472 |