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 20:23 | 4,331 | 28,387,771 | 12,869,000 | 989,000 | 2,281,472 | ||
| 2 | Mar 28, 2026 20:20 | 4,334 | 28,453,660 | 12,880,000 | 990,000 | 2,502,656 | ||
| 3 | Mar 28, 2026 20:23 | 4,337 | 29,464,612 | 12,886,000 | 991,000 | 2,502,656 | ||
| 4 | Mar 28, 2026 20:23 | 4,338 | 31,658,843 | 12,892,000 | 991,000 | 2,502,656 | ||
| 5 | Mar 28, 2026 20:21 | 4,338 | 39,436,847 | 12,892,000 | 991,000 | 2,502,656 | ||
| 6 | Mar 28, 2026 20:20 | 4,339 | 30,527,606 | 12,894,000 | 991,000 | 2,502,656 | ||
| 7 | Mar 28, 2026 20:21 | 4,339 | 33,524,628 | 12,893,000 | 991,000 | 2,502,656 | ||
| 8 | Mar 28, 2026 20:23 | 4,340 | 30,443,679 | 12,896,000 | 992,000 | 2,498,560 | ||
| 9 | Mar 28, 2026 20:22 | 4,340 | 40,147,907 | 13,889,000 | 0 | 2,494,464 | ||
| 10 | Mar 28, 2026 20:22 | 4,341 | 27,084,483 | 12,899,000 | 992,000 | 2,498,560 | ||
| 11 | Mar 28, 2026 20:22 | 4,342 | 37,828,994 | 12,902,000 | 992,000 | 2,502,656 | ||
| 12 | Mar 28, 2026 20:20 | 4,342 | 28,401,704 | 12,903,000 | 992,000 | 2,498,560 | ||
| 13 | Mar 28, 2026 20:20 | 4,343 | 31,716,989 | 12,904,000 | 992,000 | 2,281,472 | ||
| 14 | Mar 28, 2026 20:23 | 4,344 | 29,387,538 | 13,901,000 | 0 | 2,502,656 | ||
| 15 | Mar 28, 2026 20:21 | 4,344 | 26,900,454 | 12,908,000 | 992,000 | 2,494,464 | ||
| 16 | Mar 28, 2026 20:21 | 4,345 | 40,090,396 | 12,911,000 | 993,000 | 2,498,560 | ||
| 17 | Mar 28, 2026 20:23 | 4,346 | 29,364,469 | 12,913,000 | 993,000 | 2,490,368 | ||
| 18 | Mar 28, 2026 20:21 | 4,346 | 30,284,376 | 13,906,000 | 0 | 2,281,472 | ||
| 19 | Mar 28, 2026 20:21 | 4,346 | 39,291,571 | 12,839,000 | 1,069,000 | 2,494,464 | ||
| 20 | Mar 28, 2026 20:23 | 4,347 | 25,952,765 | 12,918,000 | 993,000 | 2,535,424 | ||
| 21 | Mar 28, 2026 20:20 | 4,347 | 44,338,057 | 11,924,000 | 1,987,000 | 2,498,560 | ||
| 22 | Mar 28, 2026 20:22 | 4,348 | 31,407,235 | 13,915,000 | 0 | 2,281,472 | ||
| 23 | Mar 28, 2026 20:21 | 4,348 | 35,693,721 | 12,920,000 | 993,000 | 2,502,656 | ||
| 24 | Mar 28, 2026 20:24 | 4,349 | 34,221,068 | 11,929,000 | 1,988,000 | 2,494,464 | ||
| 25 | Mar 28, 2026 20:22 | 4,349 | 28,535,031 | 12,848,000 | 1,070,000 | 2,498,560 | ||
| 26 | Mar 28, 2026 20:22 | 4,349 | 28,859,194 | 12,922,000 | 994,000 | 2,494,464 | ||
| 27 | Mar 28, 2026 20:20 | 4,350 | 31,505,715 | 11,933,000 | 1,988,000 | 2,494,464 | ||
| 28 | Mar 28, 2026 20:23 | 4,350 | 37,802,751 | 13,921,000 | 0 | 2,281,472 | ||
| 29 | Mar 28, 2026 20:22 | 4,350 | 29,600,979 | 12,927,000 | 994,000 | 2,281,472 | ||
| 30 | Mar 28, 2026 20:23 | 4,351 | 41,352,575 | 13,924,000 | 0 | 2,498,560 | ||
| 31 | Mar 28, 2026 20:21 | 4,351 | 35,193,656 | 12,930,000 | 994,000 | 2,498,560 | ||
| 32 | Mar 28, 2026 20:21 | 4,351 | 38,455,892 | 12,929,000 | 994,000 | 2,502,656 | ||
| 33 | Mar 28, 2026 20:23 | 4,353 | 29,429,533 | 12,936,000 | 995,000 | 2,486,272 | ||
| 34 | Mar 28, 2026 20:23 | 4,353 | 28,100,514 | 11,939,000 | 1,989,000 | 2,498,560 | ||
| 35 | Mar 28, 2026 20:23 | 4,354 | 42,711,080 | 12,939,000 | 995,000 | 2,490,368 | ||
| 36 | Mar 28, 2026 20:21 | 4,355 | 26,870,603 | 12,941,000 | 995,000 | 2,494,464 | ||
| 37 | Mar 28, 2026 20:23 | 4,355 | 32,962,883 | 12,941,000 | 995,000 | 2,281,472 | ||
| 38 | Mar 28, 2026 20:21 | 4,355 | 29,441,475 | 12,941,000 | 995,000 | 2,281,472 | ||
| 39 | Mar 28, 2026 20:22 | 4,356 | 29,437,045 | 11,947,000 | 1,991,000 | 2,498,560 | ||
| 40 | Mar 28, 2026 20:22 | 4,356 | 36,221,396 | 12,943,000 | 995,000 | 2,510,848 | ||
| 41 | Mar 28, 2026 20:23 | 4,357 | 35,600,958 | 12,946,000 | 995,000 | 2,281,472 | ||
| 42 | Mar 28, 2026 20:21 | 4,357 | 30,668,965 | 12,947,000 | 995,000 | 2,502,656 | ||
| 43 | Mar 28, 2026 20:23 | 4,357 | 29,063,133 | 12,947,000 | 995,000 | 2,281,472 | ||
| 44 | Mar 28, 2026 20:21 | 4,358 | 29,336,395 | 12,950,000 | 996,000 | 2,281,472 | ||
| 45 | Mar 28, 2026 20:23 | 4,359 | 25,991,266 | 12,953,000 | 996,000 | 2,281,472 | ||
| 46 | Mar 28, 2026 20:23 | 4,360 | 29,962,115 | 11,960,000 | 1,993,000 | 2,494,464 | ||
| 47 | Mar 28, 2026 20:24 | 4,361 | 33,817,128 | 12,960,000 | 996,000 | 2,498,560 | ||
| 48 | Mar 28, 2026 20:20 | 4,361 | 41,676,132 | 12,960,000 | 996,000 | 2,281,472 | ||
| 49 | Mar 28, 2026 20:22 | 4,361 | 31,797,022 | 11,962,000 | 1,993,000 | 2,494,464 | ||
| 50 | Mar 28, 2026 20:22 | 4,361 | 29,697,831 | 11,961,000 | 1,993,000 | 2,490,368 | ||
| 51 | Mar 28, 2026 20:23 | 4,361 | 31,397,565 | 12,958,000 | 996,000 | 2,281,472 | ||
| 52 | Mar 28, 2026 20:23 | 4,362 | 25,940,529 | 11,965,000 | 1,994,000 | 2,281,472 | ||
| 53 | Mar 28, 2026 20:21 | 4,362 | 31,052,428 | 12,962,000 | 997,000 | 2,490,368 | ||
| 54 | Mar 28, 2026 20:20 | 4,363 | 30,325,407 | 12,966,000 | 997,000 | 2,494,464 | ||
| 55 | Mar 28, 2026 20:21 | 4,363 | 31,352,110 | 12,963,000 | 997,000 | 2,539,520 | ||
| 56 | Mar 28, 2026 20:20 | 4,363 | 33,862,756 | 12,964,000 | 997,000 | 2,281,472 | ||
| 57 | Mar 28, 2026 20:22 | 4,364 | 29,359,451 | 12,969,000 | 997,000 | 2,281,472 | ||
| 58 | Mar 28, 2026 20:22 | 4,364 | 40,333,181 | 12,969,000 | 997,000 | 2,498,560 | ||
| 59 | Mar 28, 2026 20:22 | 4,365 | 39,720,717 | 11,972,000 | 1,995,000 | 2,498,560 | ||
| 60 | Mar 28, 2026 20:21 | 4,365 | 30,771,189 | 12,970,000 | 997,000 | 2,498,560 | ||
| 61 | Mar 28, 2026 20:23 | 4,366 | 32,012,362 | 11,975,000 | 1,995,000 | 2,281,472 | ||
| 62 | Mar 28, 2026 20:22 | 4,367 | 34,008,207 | 12,975,000 | 998,000 | 2,281,472 | ||
| 63 | Mar 28, 2026 20:22 | 4,367 | 30,765,188 | 12,975,000 | 998,000 | 2,281,472 | ||
| 64 | Mar 28, 2026 20:20 | 4,367 | 31,945,549 | 12,976,000 | 998,000 | 2,494,464 | ||
| 65 | Mar 28, 2026 20:22 | 4,368 | 28,005,313 | 12,979,000 | 998,000 | 2,281,472 | ||
| 66 | Mar 28, 2026 20:21 | 4,368 | 34,221,208 | 12,978,000 | 998,000 | 2,494,464 | ||
| 67 | Mar 28, 2026 20:21 | 4,370 | 29,273,296 | 12,985,000 | 998,000 | 2,502,656 | ||
| 68 | Mar 28, 2026 20:23 | 4,371 | 30,678,117 | 11,989,000 | 1,998,000 | 2,494,464 | ||
| 69 | Mar 28, 2026 20:20 | 4,372 | 31,507,221 | 12,991,000 | 999,000 | 2,494,464 | ||
| 70 | Mar 28, 2026 20:22 | 4,373 | 30,530,596 | 12,994,000 | 999,000 | 2,281,472 | ||
| 71 | Mar 28, 2026 20:22 | 4,374 | 28,380,163 | 11,999,000 | 1,999,000 | 2,281,472 | ||
| 72 | Mar 28, 2026 20:20 | 4,376 | 33,383,581 | 13,002,000 | 1,000,000 | 2,281,472 | ||
| 73 | Mar 28, 2026 20:20 | 4,378 | 25,523,902 | 12,007,000 | 2,001,000 | 2,281,472 | ||
| 74 | Mar 28, 2026 20:21 | 4,378 | 35,670,554 | 13,010,000 | 1,000,000 | 2,277,376 | ||
| 75 | Mar 28, 2026 20:22 | 4,378 | 33,710,060 | 13,009,000 | 1,000,000 | 2,498,560 | ||
| 76 | Mar 28, 2026 20:23 | 4,380 | 31,526,691 | 13,016,000 | 1,001,000 | 2,281,472 | ||
| 77 | Mar 28, 2026 20:21 | 4,380 | 25,609,055 | 13,016,000 | 1,001,000 | 2,498,560 | ||
| 78 | Mar 28, 2026 20:22 | 4,382 | 34,107,508 | 13,022,000 | 1,001,000 | 2,281,472 | ||
| 79 | Mar 28, 2026 20:24 | 4,387 | 32,209,479 | 12,033,000 | 2,005,000 | 2,502,656 | ||
| 80 | Mar 28, 2026 20:21 | 4,387 | 36,709,227 | 12,033,000 | 2,005,000 | 2,539,520 | ||
| 81 | Mar 28, 2026 20:21 | 4,387 | 33,209,766 | 12,032,000 | 2,005,000 | 2,281,472 | ||
| 82 | Mar 28, 2026 20:21 | 4,388 | 32,878,345 | 13,038,000 | 1,002,000 | 2,506,752 | ||
| 83 | Mar 28, 2026 20:20 | 4,388 | 36,574,037 | 13,040,000 | 1,003,000 | 2,281,472 | ||
| 84 | Mar 28, 2026 20:22 | 4,389 | 28,541,166 | 12,039,000 | 2,006,000 | 2,494,464 | ||
| 85 | Mar 28, 2026 20:21 | 4,393 | 25,628,643 | 12,050,000 | 2,008,000 | 2,281,472 | ||
| 86 | Mar 28, 2026 20:23 | 4,395 | 30,695,862 | 12,056,000 | 2,009,000 | 2,490,368 | ||
| 87 | Mar 28, 2026 20:22 | 4,396 | 33,588,890 | 12,057,000 | 2,009,000 | 2,494,464 | ||
| 88 | Mar 28, 2026 20:20 | 4,400 | 28,312,604 | 12,069,000 | 2,011,000 | 2,281,472 | ||
| 89 | Mar 28, 2026 20:22 | 4,400 | 47,388,704 | 12,069,000 | 2,011,000 | 2,281,472 | ||
| 90 | Mar 28, 2026 20:23 | 4,400 | 28,466,699 | 12,070,000 | 2,011,000 | 2,281,472 |