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 16:00 | 4,327 | 29,012,946 | 12,858,000 | 989,000 | 2,281,472 | ||
| 2 | Mar 28, 2026 15:59 | 4,330 | 30,179,289 | 12,866,000 | 989,000 | 2,502,656 | ||
| 3 | Mar 28, 2026 15:58 | 4,330 | 36,861,627 | 13,856,000 | 0 | 2,490,368 | ||
| 4 | Mar 28, 2026 16:01 | 4,332 | 30,340,940 | 11,882,000 | 1,980,000 | 2,281,472 | ||
| 5 | Mar 28, 2026 16:01 | 4,333 | 27,037,838 | 12,876,000 | 990,000 | 2,494,464 | ||
| 6 | Mar 28, 2026 16:02 | 4,334 | 45,332,175 | 12,880,000 | 990,000 | 2,490,368 | ||
| 7 | Mar 28, 2026 15:59 | 4,334 | 38,033,055 | 12,880,000 | 990,000 | 2,281,472 | ||
| 8 | Mar 28, 2026 16:01 | 4,336 | 25,130,692 | 13,875,000 | 0 | 2,502,656 | ||
| 9 | Mar 28, 2026 15:58 | 4,336 | 40,361,264 | 12,884,000 | 991,000 | 2,494,464 | ||
| 10 | Mar 28, 2026 16:00 | 4,337 | 27,480,845 | 12,887,000 | 991,000 | 2,490,368 | ||
| 11 | Mar 28, 2026 16:02 | 4,337 | 38,922,390 | 12,888,000 | 991,000 | 2,498,560 | ||
| 12 | Mar 28, 2026 15:59 | 4,337 | 35,806,500 | 12,886,000 | 991,000 | 2,494,464 | ||
| 13 | Mar 28, 2026 15:59 | 4,337 | 31,445,208 | 12,888,000 | 991,000 | 2,498,560 | ||
| 14 | Mar 28, 2026 15:59 | 4,337 | 34,363,799 | 12,886,000 | 991,000 | 2,494,464 | ||
| 15 | Mar 28, 2026 16:01 | 4,337 | 26,010,275 | 12,887,000 | 991,000 | 2,281,472 | ||
| 16 | Mar 28, 2026 16:00 | 4,338 | 26,067,644 | 13,881,000 | 0 | 2,494,464 | ||
| 17 | Mar 28, 2026 16:01 | 4,338 | 45,178,442 | 12,891,000 | 991,000 | 2,281,472 | ||
| 18 | Mar 28, 2026 16:00 | 4,338 | 32,086,207 | 12,890,000 | 991,000 | 2,502,656 | ||
| 19 | Mar 28, 2026 16:00 | 4,338 | 43,982,117 | 13,881,000 | 0 | 2,498,560 | ||
| 20 | Mar 28, 2026 16:01 | 4,338 | 43,099,958 | 12,890,000 | 991,000 | 2,502,656 | ||
| 21 | Mar 28, 2026 16:00 | 4,339 | 38,299,029 | 12,893,000 | 991,000 | 2,281,472 | ||
| 22 | Mar 28, 2026 16:01 | 4,339 | 29,730,578 | 12,893,000 | 991,000 | 2,281,472 | ||
| 23 | Mar 28, 2026 16:01 | 4,339 | 29,830,127 | 12,895,000 | 991,000 | 2,490,368 | ||
| 24 | Mar 28, 2026 15:59 | 4,341 | 26,905,958 | 12,900,000 | 992,000 | 2,498,560 | ||
| 25 | Mar 28, 2026 16:01 | 4,341 | 30,444,805 | 11,907,000 | 1,984,000 | 2,490,368 | ||
| 26 | Mar 28, 2026 16:02 | 4,342 | 40,185,313 | 13,893,000 | 0 | 2,281,472 | ||
| 27 | Mar 28, 2026 16:01 | 4,342 | 34,617,160 | 12,901,000 | 992,000 | 2,281,472 | ||
| 28 | Mar 28, 2026 16:02 | 4,342 | 29,193,343 | 12,902,000 | 992,000 | 2,277,376 | ||
| 29 | Mar 28, 2026 16:00 | 4,342 | 29,650,907 | 12,902,000 | 992,000 | 2,494,464 | ||
| 30 | Mar 28, 2026 16:00 | 4,343 | 35,240,403 | 12,907,000 | 992,000 | 2,502,656 | ||
| 31 | Mar 28, 2026 16:01 | 4,343 | 28,573,635 | 12,907,000 | 992,000 | 2,281,472 | ||
| 32 | Mar 28, 2026 16:00 | 4,343 | 28,222,684 | 12,904,000 | 992,000 | 2,494,464 | ||
| 33 | Mar 28, 2026 15:58 | 4,343 | 40,558,351 | 12,906,000 | 992,000 | 2,277,376 | ||
| 34 | Mar 28, 2026 15:59 | 4,343 | 28,953,963 | 11,913,000 | 1,985,000 | 2,535,424 | ||
| 35 | Mar 28, 2026 15:58 | 4,343 | 33,820,672 | 13,896,000 | 0 | 2,498,560 | ||
| 36 | Mar 28, 2026 15:59 | 4,343 | 25,984,463 | 12,904,000 | 992,000 | 2,494,464 | ||
| 37 | Mar 28, 2026 16:00 | 4,344 | 30,784,398 | 13,902,000 | 0 | 2,281,472 | ||
| 38 | Mar 28, 2026 16:00 | 4,344 | 31,764,264 | 12,908,000 | 992,000 | 2,281,472 | ||
| 39 | Mar 28, 2026 16:02 | 4,344 | 38,712,988 | 12,908,000 | 992,000 | 2,281,472 | ||
| 40 | Mar 28, 2026 16:00 | 4,346 | 38,604,746 | 13,907,000 | 0 | 2,502,656 | ||
| 41 | Mar 28, 2026 15:59 | 4,346 | 25,941,901 | 13,908,000 | 0 | 2,494,464 | ||
| 42 | Mar 28, 2026 16:02 | 4,346 | 35,661,396 | 12,915,000 | 993,000 | 2,494,464 | ||
| 43 | Mar 28, 2026 16:01 | 4,347 | 38,984,100 | 12,917,000 | 993,000 | 2,281,472 | ||
| 44 | Mar 28, 2026 16:00 | 4,347 | 27,566,446 | 12,917,000 | 993,000 | 2,486,272 | ||
| 45 | Mar 28, 2026 16:00 | 4,347 | 28,737,158 | 12,918,000 | 993,000 | 2,273,280 | ||
| 46 | Mar 28, 2026 16:01 | 4,347 | 34,656,818 | 12,918,000 | 993,000 | 2,494,464 | ||
| 47 | Mar 28, 2026 16:02 | 4,347 | 37,426,813 | 12,916,000 | 993,000 | 2,281,472 | ||
| 48 | Mar 28, 2026 16:01 | 4,348 | 29,623,503 | 12,920,000 | 993,000 | 2,498,560 | ||
| 49 | Mar 28, 2026 15:59 | 4,348 | 38,199,023 | 12,919,000 | 993,000 | 2,502,656 | ||
| 50 | Mar 28, 2026 16:01 | 4,348 | 28,553,100 | 13,914,000 | 0 | 2,281,472 | ||
| 51 | Mar 28, 2026 16:00 | 4,349 | 31,516,892 | 11,930,000 | 1,988,000 | 2,494,464 | ||
| 52 | Mar 28, 2026 15:59 | 4,349 | 29,138,673 | 11,930,000 | 1,988,000 | 2,494,464 | ||
| 53 | Mar 28, 2026 16:01 | 4,350 | 26,928,624 | 13,919,000 | 0 | 2,277,376 | ||
| 54 | Mar 28, 2026 16:00 | 4,350 | 47,666,561 | 12,926,000 | 994,000 | 2,502,656 | ||
| 55 | Mar 28, 2026 15:58 | 4,350 | 28,014,174 | 12,925,000 | 994,000 | 2,281,472 | ||
| 56 | Mar 28, 2026 16:01 | 4,351 | 29,764,196 | 12,928,000 | 994,000 | 2,494,464 | ||
| 57 | Mar 28, 2026 15:59 | 4,351 | 33,343,617 | 12,928,000 | 994,000 | 2,490,368 | ||
| 58 | Mar 28, 2026 15:58 | 4,351 | 31,345,564 | 12,928,000 | 994,000 | 2,281,472 | ||
| 59 | Mar 28, 2026 15:59 | 4,352 | 34,642,308 | 12,931,000 | 994,000 | 2,498,560 | ||
| 60 | Mar 28, 2026 15:58 | 4,352 | 30,412,808 | 13,927,000 | 0 | 2,281,472 | ||
| 61 | Mar 28, 2026 15:59 | 4,353 | 30,046,098 | 12,936,000 | 995,000 | 2,281,472 | ||
| 62 | Mar 28, 2026 15:59 | 4,353 | 25,391,076 | 12,936,000 | 995,000 | 2,273,280 | ||
| 63 | Mar 28, 2026 16:00 | 4,353 | 29,633,020 | 12,936,000 | 995,000 | 2,281,472 | ||
| 64 | Mar 28, 2026 15:58 | 4,354 | 46,749,175 | 12,938,000 | 995,000 | 2,498,560 | ||
| 65 | Mar 28, 2026 16:01 | 4,355 | 31,652,654 | 12,941,000 | 995,000 | 2,498,560 | ||
| 66 | Mar 28, 2026 16:01 | 4,355 | 28,740,895 | 12,942,000 | 995,000 | 2,502,656 | ||
| 67 | Mar 28, 2026 16:02 | 4,356 | 28,467,876 | 12,945,000 | 995,000 | 2,494,464 | ||
| 68 | Mar 28, 2026 15:58 | 4,357 | 28,293,919 | 11,951,000 | 1,991,000 | 2,502,656 | ||
| 69 | Mar 28, 2026 15:59 | 4,357 | 39,297,770 | 12,947,000 | 995,000 | 2,494,464 | ||
| 70 | Mar 28, 2026 16:01 | 4,358 | 32,679,193 | 12,949,000 | 996,000 | 2,281,472 | ||
| 71 | Mar 28, 2026 16:01 | 4,359 | 28,251,722 | 12,954,000 | 996,000 | 2,281,472 | ||
| 72 | Mar 28, 2026 16:00 | 4,360 | 32,240,668 | 12,955,000 | 996,000 | 2,281,472 | ||
| 73 | Mar 28, 2026 16:01 | 4,360 | 31,607,868 | 12,957,000 | 996,000 | 2,490,368 | ||
| 74 | Mar 28, 2026 16:00 | 4,363 | 33,893,518 | 12,964,000 | 997,000 | 2,281,472 | ||
| 75 | Mar 28, 2026 16:02 | 4,365 | 28,676,247 | 12,970,000 | 997,000 | 2,281,472 | ||
| 76 | Mar 28, 2026 16:00 | 4,365 | 32,201,989 | 11,972,000 | 1,995,000 | 2,535,424 | ||
| 77 | Mar 28, 2026 15:59 | 4,365 | 29,755,858 | 11,972,000 | 1,995,000 | 2,494,464 | ||
| 78 | Mar 28, 2026 15:58 | 4,365 | 26,198,081 | 12,972,000 | 997,000 | 2,535,424 | ||
| 79 | Mar 28, 2026 16:02 | 4,366 | 28,799,836 | 12,974,000 | 998,000 | 2,498,560 | ||
| 80 | Mar 28, 2026 16:01 | 4,368 | 33,938,958 | 12,981,000 | 998,000 | 2,281,472 | ||
| 81 | Mar 28, 2026 15:59 | 4,368 | 37,767,926 | 12,979,000 | 998,000 | 2,498,560 | ||
| 82 | Mar 28, 2026 15:59 | 4,371 | 31,006,268 | 12,987,000 | 999,000 | 2,281,472 | ||
| 83 | Mar 28, 2026 16:00 | 4,372 | 29,628,422 | 12,990,000 | 999,000 | 2,490,368 | ||
| 84 | Mar 28, 2026 15:59 | 4,373 | 30,118,451 | 11,994,000 | 1,999,000 | 2,281,472 | ||
| 85 | Mar 28, 2026 16:02 | 4,374 | 30,525,259 | 12,998,000 | 999,000 | 2,498,560 | ||
| 86 | Mar 28, 2026 16:02 | 4,374 | 31,886,047 | 12,998,000 | 999,000 | 2,490,368 | ||
| 87 | Mar 28, 2026 15:58 | 4,378 | 30,636,261 | 12,008,000 | 2,001,000 | 2,281,472 | ||
| 88 | Mar 28, 2026 15:59 | 4,386 | 29,582,556 | 12,031,000 | 2,005,000 | 2,494,464 | ||
| 89 | Mar 28, 2026 15:58 | 4,392 | 32,069,580 | 13,050,000 | 1,003,000 | 2,281,472 | ||
| 90 | Mar 28, 2026 16:01 | 4,395 | 34,047,179 | 13,059,000 | 1,004,000 | 2,494,464 |