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 21:01 | 4,328 | 26,782,950 | 12,862,000 | 989,000 | 2,281,472 | ||
| 2 | Mar 28, 2026 21:00 | 4,333 | 27,617,306 | 12,877,000 | 990,000 | 2,494,464 | ||
| 3 | Mar 28, 2026 21:01 | 4,333 | 39,699,695 | 13,866,000 | 0 | 2,490,368 | ||
| 4 | Mar 28, 2026 21:01 | 4,334 | 30,405,010 | 12,878,000 | 990,000 | 2,281,472 | ||
| 5 | Mar 28, 2026 20:59 | 4,335 | 34,076,900 | 12,882,000 | 990,000 | 2,494,464 | ||
| 6 | Mar 28, 2026 21:01 | 4,335 | 40,718,339 | 12,881,000 | 990,000 | 2,498,560 | ||
| 7 | Mar 28, 2026 21:01 | 4,336 | 29,301,935 | 12,885,000 | 991,000 | 2,490,368 | ||
| 8 | Mar 28, 2026 21:00 | 4,337 | 43,383,995 | 13,879,000 | 0 | 2,494,464 | ||
| 9 | Mar 28, 2026 21:01 | 4,337 | 30,127,975 | 12,887,000 | 991,000 | 2,498,560 | ||
| 10 | Mar 28, 2026 20:59 | 4,337 | 30,936,096 | 13,879,000 | 0 | 2,494,464 | ||
| 11 | Mar 28, 2026 21:00 | 4,338 | 32,071,592 | 12,892,000 | 991,000 | 2,498,560 | ||
| 12 | Mar 28, 2026 21:01 | 4,338 | 40,699,171 | 12,891,000 | 991,000 | 2,281,472 | ||
| 13 | Mar 28, 2026 20:58 | 4,339 | 38,621,387 | 12,893,000 | 991,000 | 2,494,464 | ||
| 14 | Mar 28, 2026 21:00 | 4,339 | 27,403,115 | 12,893,000 | 991,000 | 2,281,472 | ||
| 15 | Mar 28, 2026 20:58 | 4,339 | 29,536,760 | 12,893,000 | 991,000 | 2,494,464 | ||
| 16 | Mar 28, 2026 20:58 | 4,339 | 32,416,157 | 12,895,000 | 991,000 | 2,490,368 | ||
| 17 | Mar 28, 2026 21:00 | 4,340 | 31,719,631 | 12,896,000 | 992,000 | 2,490,368 | ||
| 18 | Mar 28, 2026 20:59 | 4,340 | 28,562,138 | 12,897,000 | 992,000 | 2,502,656 | ||
| 19 | Mar 28, 2026 20:59 | 4,340 | 34,746,500 | 12,896,000 | 992,000 | 2,498,560 | ||
| 20 | Mar 28, 2026 21:01 | 4,340 | 32,743,930 | 12,897,000 | 992,000 | 2,543,616 | ||
| 21 | Mar 28, 2026 20:58 | 4,341 | 31,293,019 | 12,899,000 | 992,000 | 2,498,560 | ||
| 22 | Mar 28, 2026 21:00 | 4,341 | 32,408,711 | 12,900,000 | 992,000 | 2,281,472 | ||
| 23 | Mar 28, 2026 20:58 | 4,341 | 29,850,900 | 12,900,000 | 992,000 | 2,490,368 | ||
| 24 | Mar 28, 2026 21:01 | 4,341 | 31,026,446 | 12,900,000 | 992,000 | 2,281,472 | ||
| 25 | Mar 28, 2026 20:59 | 4,342 | 27,240,001 | 12,903,000 | 992,000 | 2,486,272 | ||
| 26 | Mar 28, 2026 21:00 | 4,342 | 35,171,240 | 12,901,000 | 992,000 | 2,281,472 | ||
| 27 | Mar 28, 2026 21:02 | 4,342 | 32,872,297 | 12,901,000 | 992,000 | 2,281,472 | ||
| 28 | Mar 28, 2026 20:59 | 4,342 | 36,822,456 | 13,895,000 | 0 | 2,281,472 | ||
| 29 | Mar 28, 2026 21:01 | 4,342 | 28,761,940 | 12,901,000 | 992,000 | 2,281,472 | ||
| 30 | Mar 28, 2026 21:00 | 4,343 | 32,804,034 | 12,906,000 | 992,000 | 2,502,656 | ||
| 31 | Mar 28, 2026 20:59 | 4,344 | 28,171,780 | 12,908,000 | 992,000 | 2,494,464 | ||
| 32 | Mar 28, 2026 21:01 | 4,344 | 29,971,389 | 12,908,000 | 992,000 | 2,502,656 | ||
| 33 | Mar 28, 2026 20:58 | 4,344 | 30,336,224 | 12,909,000 | 993,000 | 2,539,520 | ||
| 34 | Mar 28, 2026 21:00 | 4,344 | 34,656,958 | 12,908,000 | 992,000 | 2,498,560 | ||
| 35 | Mar 28, 2026 21:01 | 4,345 | 29,426,003 | 13,904,000 | 0 | 2,498,560 | ||
| 36 | Mar 28, 2026 21:01 | 4,345 | 38,964,700 | 12,912,000 | 993,000 | 2,490,368 | ||
| 37 | Mar 28, 2026 21:01 | 4,345 | 31,020,084 | 12,910,000 | 993,000 | 2,486,272 | ||
| 38 | Mar 28, 2026 20:58 | 4,346 | 29,238,791 | 12,914,000 | 993,000 | 2,281,472 | ||
| 39 | Mar 28, 2026 20:59 | 4,346 | 29,985,882 | 13,907,000 | 0 | 2,281,472 | ||
| 40 | Mar 28, 2026 20:58 | 4,348 | 28,051,088 | 12,920,000 | 993,000 | 2,281,472 | ||
| 41 | Mar 28, 2026 20:59 | 4,348 | 29,998,286 | 12,919,000 | 993,000 | 2,494,464 | ||
| 42 | Mar 28, 2026 21:00 | 4,348 | 30,260,891 | 13,914,000 | 0 | 2,498,560 | ||
| 43 | Mar 28, 2026 20:59 | 4,348 | 38,238,079 | 12,920,000 | 993,000 | 2,498,560 | ||
| 44 | Mar 28, 2026 21:01 | 4,349 | 34,611,713 | 12,922,000 | 994,000 | 2,498,560 | ||
| 45 | Mar 28, 2026 21:00 | 4,350 | 27,440,308 | 11,932,000 | 1,988,000 | 2,498,560 | ||
| 46 | Mar 28, 2026 20:59 | 4,350 | 30,948,840 | 12,927,000 | 994,000 | 2,281,472 | ||
| 47 | Mar 28, 2026 20:58 | 4,351 | 28,641,887 | 12,930,000 | 994,000 | 2,502,656 | ||
| 48 | Mar 28, 2026 20:58 | 4,351 | 32,033,575 | 13,923,000 | 0 | 2,281,472 | ||
| 49 | Mar 28, 2026 20:59 | 4,352 | 34,503,105 | 12,931,000 | 994,000 | 2,490,368 | ||
| 50 | Mar 28, 2026 20:59 | 4,352 | 34,505,435 | 12,933,000 | 994,000 | 2,281,472 | ||
| 51 | Mar 28, 2026 21:01 | 4,353 | 29,464,032 | 12,935,000 | 995,000 | 2,494,464 | ||
| 52 | Mar 28, 2026 21:00 | 4,353 | 36,486,943 | 12,936,000 | 995,000 | 2,494,464 | ||
| 53 | Mar 28, 2026 20:59 | 4,354 | 35,594,265 | 12,938,000 | 995,000 | 2,494,464 | ||
| 54 | Mar 28, 2026 21:02 | 4,355 | 36,003,233 | 12,942,000 | 995,000 | 2,494,464 | ||
| 55 | Mar 28, 2026 21:02 | 4,355 | 31,520,693 | 11,946,000 | 1,991,000 | 2,494,464 | ||
| 56 | Mar 28, 2026 21:00 | 4,355 | 34,948,724 | 12,940,000 | 995,000 | 2,494,464 | ||
| 57 | Mar 28, 2026 21:00 | 4,358 | 27,090,543 | 12,949,000 | 996,000 | 2,498,560 | ||
| 58 | Mar 28, 2026 21:00 | 4,358 | 29,909,481 | 12,951,000 | 996,000 | 2,498,560 | ||
| 59 | Mar 28, 2026 21:01 | 4,358 | 38,221,642 | 12,949,000 | 996,000 | 2,502,656 | ||
| 60 | Mar 28, 2026 20:59 | 4,359 | 36,089,561 | 12,954,000 | 996,000 | 2,281,472 | ||
| 61 | Mar 28, 2026 21:00 | 4,359 | 29,884,618 | 12,952,000 | 996,000 | 2,486,272 | ||
| 62 | Mar 28, 2026 21:01 | 4,359 | 30,459,375 | 12,953,000 | 996,000 | 2,498,560 | ||
| 63 | Mar 28, 2026 21:00 | 4,360 | 31,994,380 | 11,959,000 | 1,993,000 | 2,498,560 | ||
| 64 | Mar 28, 2026 21:01 | 4,360 | 41,163,728 | 12,957,000 | 996,000 | 2,498,560 | ||
| 65 | Mar 28, 2026 20:59 | 4,362 | 30,013,449 | 12,962,000 | 997,000 | 2,281,472 | ||
| 66 | Mar 28, 2026 21:01 | 4,362 | 30,879,734 | 11,964,000 | 1,994,000 | 2,498,560 | ||
| 67 | Mar 28, 2026 20:59 | 4,363 | 29,677,968 | 12,963,000 | 997,000 | 2,281,472 | ||
| 68 | Mar 28, 2026 20:59 | 4,363 | 34,210,017 | 12,964,000 | 997,000 | 2,486,272 | ||
| 69 | Mar 28, 2026 20:59 | 4,365 | 39,861,940 | 12,971,000 | 997,000 | 2,494,464 | ||
| 70 | Mar 28, 2026 21:00 | 4,366 | 32,705,766 | 12,973,000 | 997,000 | 2,502,656 | ||
| 71 | Mar 28, 2026 20:59 | 4,367 | 33,059,153 | 12,975,000 | 998,000 | 2,281,472 | ||
| 72 | Mar 28, 2026 21:01 | 4,367 | 32,161,356 | 12,977,000 | 998,000 | 2,494,464 | ||
| 73 | Mar 28, 2026 20:59 | 4,367 | 31,347,963 | 12,976,000 | 998,000 | 2,281,472 | ||
| 74 | Mar 28, 2026 21:01 | 4,367 | 38,469,174 | 12,976,000 | 998,000 | 2,486,272 | ||
| 75 | Mar 28, 2026 21:00 | 4,368 | 29,812,430 | 12,979,000 | 998,000 | 2,281,472 | ||
| 76 | Mar 28, 2026 20:58 | 4,368 | 33,010,102 | 11,982,000 | 1,997,000 | 2,281,472 | ||
| 77 | Mar 28, 2026 20:58 | 4,369 | 32,097,594 | 12,982,000 | 998,000 | 2,281,472 | ||
| 78 | Mar 28, 2026 21:01 | 4,370 | 29,216,405 | 12,985,000 | 998,000 | 2,281,472 | ||
| 79 | Mar 28, 2026 20:59 | 4,371 | 30,396,927 | 11,989,000 | 1,998,000 | 2,277,376 | ||
| 80 | Mar 28, 2026 20:59 | 4,372 | 28,954,515 | 12,990,000 | 999,000 | 2,281,472 | ||
| 81 | Mar 28, 2026 21:00 | 4,373 | 33,393,591 | 11,995,000 | 1,999,000 | 2,535,424 | ||
| 82 | Mar 28, 2026 20:58 | 4,373 | 30,742,226 | 12,996,000 | 999,000 | 2,281,472 | ||
| 83 | Mar 28, 2026 21:00 | 4,373 | 32,127,608 | 12,995,000 | 999,000 | 2,539,520 | ||
| 84 | Mar 28, 2026 20:59 | 4,373 | 33,965,113 | 12,994,000 | 999,000 | 2,281,472 | ||
| 85 | Mar 28, 2026 21:00 | 4,374 | 31,761,053 | 12,998,000 | 999,000 | 2,281,472 | ||
| 86 | Mar 28, 2026 21:00 | 4,378 | 29,103,666 | 12,007,000 | 2,001,000 | 2,490,368 | ||
| 87 | Mar 28, 2026 21:01 | 4,382 | 29,196,587 | 12,020,000 | 2,003,000 | 2,281,472 | ||
| 88 | Mar 28, 2026 21:00 | 4,383 | 26,620,554 | 12,021,000 | 2,003,000 | 2,535,424 | ||
| 89 | Mar 28, 2026 20:58 | 4,388 | 31,906,500 | 13,040,000 | 1,003,000 | 2,281,472 | ||
| 90 | Mar 28, 2026 20:58 | 4,388 | 36,455,411 | 13,038,000 | 1,002,000 | 2,281,472 |