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 20:28 | 4,333 | 44,484,493 | 12,877,000 | 990,000 | 2,281,472 | ||
| 2 | Mar 28, 2026 20:27 | 4,334 | 37,032,419 | 12,880,000 | 990,000 | 2,490,368 | ||
| 3 | Mar 28, 2026 20:26 | 4,335 | 28,316,263 | 11,891,000 | 1,981,000 | 2,281,472 | ||
| 4 | Mar 28, 2026 20:29 | 4,336 | 39,465,791 | 12,885,000 | 991,000 | 2,490,368 | ||
| 5 | Mar 28, 2026 20:28 | 4,337 | 31,565,047 | 12,886,000 | 991,000 | 2,498,560 | ||
| 6 | Mar 28, 2026 20:28 | 4,338 | 43,621,150 | 12,889,000 | 991,000 | 2,498,560 | ||
| 7 | Mar 28, 2026 20:27 | 4,338 | 41,386,818 | 13,883,000 | 0 | 2,281,472 | ||
| 8 | Mar 28, 2026 20:29 | 4,338 | 33,723,966 | 12,890,000 | 991,000 | 2,498,560 | ||
| 9 | Mar 28, 2026 20:27 | 4,338 | 30,616,775 | 12,889,000 | 991,000 | 2,273,280 | ||
| 10 | Mar 28, 2026 20:29 | 4,339 | 29,303,410 | 12,895,000 | 991,000 | 2,494,464 | ||
| 11 | Mar 28, 2026 20:28 | 4,341 | 41,043,967 | 12,899,000 | 992,000 | 2,281,472 | ||
| 12 | Mar 28, 2026 20:29 | 4,341 | 31,840,286 | 12,898,000 | 992,000 | 2,498,560 | ||
| 13 | Mar 28, 2026 20:27 | 4,341 | 30,341,177 | 12,899,000 | 992,000 | 2,494,464 | ||
| 14 | Mar 28, 2026 20:30 | 4,341 | 35,784,982 | 12,898,000 | 992,000 | 2,281,472 | ||
| 15 | Mar 28, 2026 20:27 | 4,342 | 30,548,681 | 12,902,000 | 992,000 | 2,281,472 | ||
| 16 | Mar 28, 2026 20:27 | 4,343 | 30,178,512 | 12,829,000 | 1,069,000 | 2,502,656 | ||
| 17 | Mar 28, 2026 20:27 | 4,343 | 35,424,888 | 12,904,000 | 992,000 | 2,494,464 | ||
| 18 | Mar 28, 2026 20:27 | 4,343 | 32,058,784 | 13,897,000 | 0 | 2,490,368 | ||
| 19 | Mar 28, 2026 20:29 | 4,344 | 31,489,747 | 12,908,000 | 992,000 | 2,490,368 | ||
| 20 | Mar 28, 2026 20:27 | 4,344 | 27,830,215 | 12,908,000 | 992,000 | 2,494,464 | ||
| 21 | Mar 28, 2026 20:27 | 4,345 | 31,542,731 | 12,910,000 | 993,000 | 2,281,472 | ||
| 22 | Mar 28, 2026 20:30 | 4,346 | 36,910,324 | 12,913,000 | 993,000 | 2,494,464 | ||
| 23 | Mar 28, 2026 20:30 | 4,346 | 30,186,510 | 11,921,000 | 1,986,000 | 2,281,472 | ||
| 24 | Mar 28, 2026 20:30 | 4,347 | 26,965,268 | 11,924,000 | 1,987,000 | 2,281,472 | ||
| 25 | Mar 28, 2026 20:29 | 4,347 | 26,893,688 | 12,916,000 | 993,000 | 2,281,472 | ||
| 26 | Mar 28, 2026 20:27 | 4,347 | 31,750,732 | 12,918,000 | 993,000 | 2,281,472 | ||
| 27 | Mar 28, 2026 20:28 | 4,347 | 28,415,828 | 13,909,000 | 0 | 2,494,464 | ||
| 28 | Mar 28, 2026 20:26 | 4,348 | 39,148,492 | 12,920,000 | 993,000 | 2,494,464 | ||
| 29 | Mar 28, 2026 20:29 | 4,348 | 28,163,356 | 12,920,000 | 993,000 | 2,498,560 | ||
| 30 | Mar 28, 2026 20:28 | 4,349 | 29,591,320 | 12,923,000 | 994,000 | 2,281,472 | ||
| 31 | Mar 28, 2026 20:29 | 4,350 | 30,334,798 | 12,925,000 | 994,000 | 2,506,752 | ||
| 32 | Mar 28, 2026 20:27 | 4,350 | 28,181,879 | 13,921,000 | 0 | 2,494,464 | ||
| 33 | Mar 28, 2026 20:26 | 4,351 | 29,590,727 | 11,934,000 | 1,989,000 | 2,277,376 | ||
| 34 | Mar 28, 2026 20:28 | 4,352 | 40,619,742 | 13,926,000 | 0 | 2,281,472 | ||
| 35 | Mar 28, 2026 20:26 | 4,352 | 41,244,580 | 11,936,000 | 1,989,000 | 2,494,464 | ||
| 36 | Mar 28, 2026 20:28 | 4,353 | 27,686,184 | 12,935,000 | 995,000 | 2,486,272 | ||
| 37 | Mar 28, 2026 20:30 | 4,353 | 28,939,831 | 12,934,000 | 994,000 | 2,277,376 | ||
| 38 | Mar 28, 2026 20:29 | 4,354 | 29,541,554 | 11,944,000 | 1,990,000 | 2,498,560 | ||
| 39 | Mar 28, 2026 20:27 | 4,354 | 29,756,737 | 12,939,000 | 995,000 | 2,281,472 | ||
| 40 | Mar 28, 2026 20:28 | 4,354 | 28,149,398 | 11,943,000 | 1,990,000 | 2,494,464 | ||
| 41 | Mar 28, 2026 20:27 | 4,354 | 31,074,203 | 12,937,000 | 995,000 | 2,281,472 | ||
| 42 | Mar 28, 2026 20:28 | 4,355 | 38,255,967 | 11,945,000 | 1,990,000 | 2,494,464 | ||
| 43 | Mar 28, 2026 20:29 | 4,356 | 38,939,024 | 12,945,000 | 995,000 | 2,281,472 | ||
| 44 | Mar 28, 2026 20:27 | 4,356 | 30,001,593 | 12,944,000 | 995,000 | 2,490,368 | ||
| 45 | Mar 28, 2026 20:29 | 4,357 | 27,935,419 | 12,946,000 | 995,000 | 2,281,472 | ||
| 46 | Mar 28, 2026 20:27 | 4,357 | 38,612,454 | 12,946,000 | 995,000 | 2,498,560 | ||
| 47 | Mar 28, 2026 20:27 | 4,358 | 33,485,471 | 12,950,000 | 996,000 | 2,498,560 | ||
| 48 | Mar 28, 2026 20:29 | 4,358 | 34,034,873 | 12,949,000 | 996,000 | 2,486,272 | ||
| 49 | Mar 28, 2026 20:27 | 4,360 | 28,052,473 | 12,956,000 | 996,000 | 2,281,472 | ||
| 50 | Mar 28, 2026 20:29 | 4,361 | 37,567,279 | 12,959,000 | 996,000 | 2,490,368 | ||
| 51 | Mar 28, 2026 20:28 | 4,361 | 29,878,303 | 12,958,000 | 996,000 | 2,281,472 | ||
| 52 | Mar 28, 2026 20:29 | 4,361 | 31,091,566 | 12,960,000 | 996,000 | 2,281,472 | ||
| 53 | Mar 28, 2026 20:29 | 4,361 | 30,378,947 | 11,961,000 | 1,993,000 | 2,502,656 | ||
| 54 | Mar 28, 2026 20:29 | 4,362 | 29,248,331 | 12,961,000 | 997,000 | 2,498,560 | ||
| 55 | Mar 28, 2026 20:28 | 4,363 | 29,478,644 | 11,967,000 | 1,994,000 | 2,494,464 | ||
| 56 | Mar 28, 2026 20:28 | 4,364 | 31,500,613 | 12,969,000 | 997,000 | 2,498,560 | ||
| 57 | Mar 28, 2026 20:28 | 4,364 | 29,753,513 | 11,970,000 | 1,995,000 | 2,281,472 | ||
| 58 | Mar 28, 2026 20:30 | 4,364 | 28,649,139 | 11,971,000 | 1,995,000 | 2,490,368 | ||
| 59 | Mar 28, 2026 20:28 | 4,365 | 29,900,978 | 12,972,000 | 997,000 | 2,281,472 | ||
| 60 | Mar 28, 2026 20:27 | 4,365 | 31,775,968 | 11,973,000 | 1,995,000 | 2,502,656 | ||
| 61 | Mar 28, 2026 20:30 | 4,365 | 26,575,453 | 12,971,000 | 997,000 | 2,502,656 | ||
| 62 | Mar 28, 2026 20:27 | 4,365 | 31,578,262 | 12,970,000 | 997,000 | 2,490,368 | ||
| 63 | Mar 28, 2026 20:26 | 4,365 | 30,424,578 | 11,972,000 | 1,995,000 | 2,494,464 | ||
| 64 | Mar 28, 2026 20:28 | 4,365 | 35,858,658 | 12,971,000 | 997,000 | 2,281,472 | ||
| 65 | Mar 28, 2026 20:26 | 4,366 | 28,445,023 | 11,976,000 | 1,996,000 | 2,539,520 | ||
| 66 | Mar 28, 2026 20:28 | 4,367 | 39,643,767 | 12,977,000 | 998,000 | 2,281,472 | ||
| 67 | Mar 28, 2026 20:30 | 4,368 | 32,737,873 | 12,979,000 | 998,000 | 2,277,376 | ||
| 68 | Mar 28, 2026 20:29 | 4,368 | 33,393,967 | 12,981,000 | 998,000 | 2,478,080 | ||
| 69 | Mar 28, 2026 20:29 | 4,369 | 35,132,151 | 11,983,000 | 1,997,000 | 2,281,472 | ||
| 70 | Mar 28, 2026 20:29 | 4,372 | 30,323,627 | 12,991,000 | 999,000 | 2,281,472 | ||
| 71 | Mar 28, 2026 20:27 | 4,372 | 42,571,172 | 12,992,000 | 999,000 | 2,498,560 | ||
| 72 | Mar 28, 2026 20:26 | 4,374 | 31,711,291 | 11,997,000 | 1,999,000 | 2,490,368 | ||
| 73 | Mar 28, 2026 20:27 | 4,375 | 34,578,287 | 13,000,000 | 1,000,000 | 2,281,472 | ||
| 74 | Mar 28, 2026 20:29 | 4,375 | 29,674,422 | 13,001,000 | 1,000,000 | 2,281,472 | ||
| 75 | Mar 28, 2026 20:28 | 4,376 | 26,563,137 | 13,004,000 | 1,000,000 | 2,490,368 | ||
| 76 | Mar 28, 2026 20:29 | 4,376 | 35,149,608 | 12,002,000 | 2,000,000 | 2,502,656 | ||
| 77 | Mar 28, 2026 20:30 | 4,378 | 33,658,524 | 13,008,000 | 1,000,000 | 2,281,472 | ||
| 78 | Mar 28, 2026 20:27 | 4,379 | 36,954,019 | 12,012,000 | 2,002,000 | 2,281,472 | ||
| 79 | Mar 28, 2026 20:26 | 4,379 | 37,295,360 | 12,012,000 | 2,002,000 | 2,281,472 | ||
| 80 | Mar 28, 2026 20:28 | 4,381 | 29,818,596 | 13,017,000 | 1,001,000 | 2,281,472 | ||
| 81 | Mar 28, 2026 20:29 | 4,381 | 27,811,487 | 12,017,000 | 2,002,000 | 2,498,560 | ||
| 82 | Mar 28, 2026 20:28 | 4,382 | 29,748,652 | 13,021,000 | 1,001,000 | 2,281,472 | ||
| 83 | Mar 28, 2026 20:29 | 4,383 | 25,347,196 | 14,025,000 | 0 | 2,486,272 | ||
| 84 | Mar 28, 2026 20:28 | 4,383 | 27,234,739 | 13,024,000 | 1,001,000 | 2,490,368 | ||
| 85 | Mar 28, 2026 20:28 | 4,384 | 26,280,936 | 13,028,000 | 1,002,000 | 2,535,424 | ||
| 86 | Mar 28, 2026 20:28 | 4,384 | 29,005,055 | 12,026,000 | 2,004,000 | 2,494,464 | ||
| 87 | Mar 28, 2026 20:27 | 4,387 | 36,023,293 | 12,034,000 | 2,005,000 | 2,498,560 | ||
| 88 | Mar 28, 2026 20:29 | 4,387 | 38,640,914 | 12,033,000 | 2,005,000 | 2,490,368 | ||
| 89 | Mar 28, 2026 20:26 | 4,387 | 30,827,923 | 12,032,000 | 2,005,000 | 2,281,472 | ||
| 90 | Mar 28, 2026 20:28 | 4,389 | 32,381,224 | 12,039,000 | 2,006,000 | 2,494,464 |