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 21:33 | 4,337 | 29,601,585 | 12,886,000 | 991,000 | 2,490,368 | ||
| 2 | Mar 28, 2026 21:31 | 4,339 | 26,359,116 | 12,893,000 | 991,000 | 2,494,464 | ||
| 3 | Mar 28, 2026 21:32 | 4,339 | 33,348,097 | 11,902,000 | 1,983,000 | 2,490,368 | ||
| 4 | Mar 28, 2026 21:33 | 4,339 | 28,754,949 | 12,894,000 | 991,000 | 2,494,464 | ||
| 5 | Mar 28, 2026 21:31 | 4,339 | 25,826,882 | 12,894,000 | 991,000 | 2,490,368 | ||
| 6 | Mar 28, 2026 21:33 | 4,341 | 27,051,618 | 12,899,000 | 992,000 | 2,281,472 | ||
| 7 | Mar 28, 2026 21:32 | 4,341 | 34,741,066 | 12,899,000 | 992,000 | 2,498,560 | ||
| 8 | Mar 28, 2026 21:30 | 4,341 | 36,565,584 | 12,898,000 | 992,000 | 2,281,472 | ||
| 9 | Mar 28, 2026 21:31 | 4,343 | 38,113,445 | 12,906,000 | 992,000 | 2,281,472 | ||
| 10 | Mar 28, 2026 21:33 | 4,343 | 29,411,453 | 13,896,000 | 0 | 2,535,424 | ||
| 11 | Mar 28, 2026 21:33 | 4,343 | 30,277,645 | 12,906,000 | 992,000 | 2,490,368 | ||
| 12 | Mar 28, 2026 21:32 | 4,343 | 31,375,767 | 12,904,000 | 992,000 | 2,498,560 | ||
| 13 | Mar 28, 2026 21:33 | 4,344 | 27,155,707 | 11,915,000 | 1,985,000 | 2,494,464 | ||
| 14 | Mar 28, 2026 21:31 | 4,344 | 29,962,761 | 11,916,000 | 1,986,000 | 2,494,464 | ||
| 15 | Mar 28, 2026 21:30 | 4,344 | 36,589,220 | 12,908,000 | 992,000 | 2,498,560 | ||
| 16 | Mar 28, 2026 21:30 | 4,345 | 40,768,400 | 12,912,000 | 993,000 | 2,502,656 | ||
| 17 | Mar 28, 2026 21:33 | 4,346 | 38,132,499 | 12,913,000 | 993,000 | 2,281,472 | ||
| 18 | Mar 28, 2026 21:32 | 4,346 | 41,993,871 | 12,914,000 | 993,000 | 2,490,368 | ||
| 19 | Mar 28, 2026 21:31 | 4,346 | 31,758,914 | 12,914,000 | 993,000 | 2,281,472 | ||
| 20 | Mar 28, 2026 21:30 | 4,346 | 33,873,365 | 11,920,000 | 1,986,000 | 2,494,464 | ||
| 21 | Mar 28, 2026 21:30 | 4,346 | 27,579,311 | 12,914,000 | 993,000 | 2,490,368 | ||
| 22 | Mar 28, 2026 21:29 | 4,347 | 27,861,372 | 12,917,000 | 993,000 | 2,494,464 | ||
| 23 | Mar 28, 2026 21:32 | 4,347 | 32,091,518 | 13,910,000 | 0 | 2,498,560 | ||
| 24 | Mar 28, 2026 21:31 | 4,348 | 29,556,975 | 12,919,000 | 993,000 | 2,490,368 | ||
| 25 | Mar 28, 2026 21:31 | 4,348 | 35,581,903 | 12,919,000 | 993,000 | 2,502,656 | ||
| 26 | Mar 28, 2026 21:31 | 4,348 | 31,913,560 | 12,921,000 | 993,000 | 2,494,464 | ||
| 27 | Mar 28, 2026 21:32 | 4,349 | 31,498,688 | 13,917,000 | 0 | 2,482,176 | ||
| 28 | Mar 28, 2026 21:32 | 4,349 | 36,944,871 | 11,930,000 | 1,988,000 | 2,281,472 | ||
| 29 | Mar 28, 2026 21:32 | 4,350 | 30,261,366 | 11,931,000 | 1,988,000 | 2,494,464 | ||
| 30 | Mar 28, 2026 21:30 | 4,350 | 26,988,320 | 11,932,000 | 1,988,000 | 2,281,472 | ||
| 31 | Mar 28, 2026 21:31 | 4,350 | 34,042,327 | 12,927,000 | 994,000 | 2,281,472 | ||
| 32 | Mar 28, 2026 21:31 | 4,350 | 40,581,726 | 12,927,000 | 994,000 | 2,486,272 | ||
| 33 | Mar 28, 2026 21:32 | 4,352 | 38,195,004 | 12,933,000 | 994,000 | 2,490,368 | ||
| 34 | Mar 28, 2026 21:30 | 4,352 | 31,521,853 | 11,938,000 | 1,989,000 | 2,498,560 | ||
| 35 | Mar 28, 2026 21:31 | 4,352 | 27,528,360 | 12,932,000 | 994,000 | 2,490,368 | ||
| 36 | Mar 28, 2026 21:30 | 4,353 | 39,100,029 | 12,935,000 | 995,000 | 2,281,472 | ||
| 37 | Mar 28, 2026 21:33 | 4,353 | 32,318,743 | 12,934,000 | 994,000 | 2,498,560 | ||
| 38 | Mar 28, 2026 21:32 | 4,354 | 36,130,325 | 12,939,000 | 995,000 | 2,490,368 | ||
| 39 | Mar 28, 2026 21:29 | 4,354 | 29,983,738 | 12,937,000 | 995,000 | 2,494,464 | ||
| 40 | Mar 28, 2026 21:31 | 4,355 | 30,076,884 | 12,942,000 | 995,000 | 2,498,560 | ||
| 41 | Mar 28, 2026 21:32 | 4,356 | 31,339,763 | 11,949,000 | 1,991,000 | 2,494,464 | ||
| 42 | Mar 28, 2026 21:32 | 4,357 | 33,599,669 | 12,946,000 | 995,000 | 2,498,560 | ||
| 43 | Mar 28, 2026 21:33 | 4,358 | 28,708,033 | 12,950,000 | 996,000 | 2,490,368 | ||
| 44 | Mar 28, 2026 21:30 | 4,358 | 31,005,533 | 12,948,000 | 996,000 | 2,494,464 | ||
| 45 | Mar 28, 2026 21:30 | 4,359 | 29,223,514 | 12,953,000 | 996,000 | 2,494,464 | ||
| 46 | Mar 28, 2026 21:32 | 4,359 | 38,893,220 | 12,953,000 | 996,000 | 2,494,464 | ||
| 47 | Mar 28, 2026 21:33 | 4,360 | 37,727,224 | 12,956,000 | 996,000 | 2,281,472 | ||
| 48 | Mar 28, 2026 21:31 | 4,361 | 30,517,670 | 12,958,000 | 996,000 | 2,494,464 | ||
| 49 | Mar 28, 2026 21:31 | 4,361 | 32,895,728 | 11,961,000 | 1,993,000 | 2,494,464 | ||
| 50 | Mar 28, 2026 21:31 | 4,361 | 29,731,121 | 12,960,000 | 996,000 | 2,502,656 | ||
| 51 | Mar 28, 2026 21:31 | 4,362 | 33,288,983 | 12,961,000 | 997,000 | 2,281,472 | ||
| 52 | Mar 28, 2026 21:31 | 4,363 | 37,726,084 | 11,969,000 | 1,994,000 | 2,281,472 | ||
| 53 | Mar 28, 2026 21:32 | 4,363 | 34,988,797 | 12,965,000 | 997,000 | 2,502,656 | ||
| 54 | Mar 28, 2026 21:30 | 4,363 | 31,669,336 | 12,966,000 | 997,000 | 2,281,472 | ||
| 55 | Mar 28, 2026 21:33 | 4,365 | 29,785,559 | 12,972,000 | 997,000 | 2,502,656 | ||
| 56 | Mar 28, 2026 21:30 | 4,365 | 34,279,016 | 11,972,000 | 1,995,000 | 2,494,464 | ||
| 57 | Mar 28, 2026 21:32 | 4,367 | 35,441,321 | 11,979,000 | 1,996,000 | 2,494,464 | ||
| 58 | Mar 28, 2026 21:32 | 4,367 | 31,097,129 | 12,977,000 | 998,000 | 2,494,464 | ||
| 59 | Mar 28, 2026 21:31 | 4,367 | 33,982,473 | 12,977,000 | 998,000 | 2,502,656 | ||
| 60 | Mar 28, 2026 21:30 | 4,368 | 27,822,399 | 11,980,000 | 1,996,000 | 2,535,424 | ||
| 61 | Mar 28, 2026 21:32 | 4,368 | 42,631,868 | 12,980,000 | 998,000 | 2,498,560 | ||
| 62 | Mar 28, 2026 21:32 | 4,368 | 28,441,612 | 11,981,000 | 1,996,000 | 2,281,472 | ||
| 63 | Mar 28, 2026 21:33 | 4,369 | 34,955,297 | 12,984,000 | 998,000 | 2,281,472 | ||
| 64 | Mar 28, 2026 21:30 | 4,369 | 35,399,262 | 11,985,000 | 1,997,000 | 2,281,472 | ||
| 65 | Mar 28, 2026 21:30 | 4,371 | 35,676,771 | 11,990,000 | 1,998,000 | 2,502,656 | ||
| 66 | Mar 28, 2026 21:32 | 4,371 | 30,528,266 | 12,989,000 | 999,000 | 2,281,472 | ||
| 67 | Mar 28, 2026 21:32 | 4,371 | 47,349,354 | 12,988,000 | 999,000 | 2,490,368 | ||
| 68 | Mar 28, 2026 21:30 | 4,372 | 33,755,151 | 12,990,000 | 999,000 | 2,498,560 | ||
| 69 | Mar 28, 2026 21:32 | 4,373 | 39,949,231 | 12,993,000 | 999,000 | 2,281,472 | ||
| 70 | Mar 28, 2026 21:30 | 4,373 | 33,505,504 | 11,995,000 | 1,999,000 | 2,281,472 | ||
| 71 | Mar 28, 2026 21:30 | 4,373 | 28,183,608 | 12,995,000 | 999,000 | 2,281,472 | ||
| 72 | Mar 28, 2026 21:30 | 4,375 | 28,484,658 | 13,001,000 | 1,000,000 | 2,281,472 | ||
| 73 | Mar 28, 2026 21:30 | 4,375 | 34,323,676 | 13,000,000 | 1,000,000 | 2,494,464 | ||
| 74 | Mar 28, 2026 21:30 | 4,376 | 30,394,995 | 13,003,000 | 1,000,000 | 2,490,368 | ||
| 75 | Mar 28, 2026 21:31 | 4,376 | 29,367,322 | 12,002,000 | 2,000,000 | 2,281,472 | ||
| 76 | Mar 28, 2026 21:31 | 4,378 | 27,445,303 | 12,008,000 | 2,001,000 | 2,535,424 | ||
| 77 | Mar 28, 2026 21:33 | 4,379 | 33,316,946 | 12,012,000 | 2,002,000 | 2,506,752 | ||
| 78 | Mar 28, 2026 21:32 | 4,379 | 29,636,523 | 12,011,000 | 2,001,000 | 2,281,472 | ||
| 79 | Mar 28, 2026 21:31 | 4,382 | 26,386,016 | 12,018,000 | 2,003,000 | 2,494,464 | ||
| 80 | Mar 28, 2026 21:29 | 4,383 | 33,770,099 | 12,021,000 | 2,003,000 | 2,490,368 | ||
| 81 | Mar 28, 2026 21:32 | 4,384 | 26,715,782 | 12,024,000 | 2,004,000 | 2,494,464 | ||
| 82 | Mar 28, 2026 21:31 | 4,384 | 35,810,074 | 12,024,000 | 2,004,000 | 2,494,464 | ||
| 83 | Mar 28, 2026 21:31 | 4,384 | 31,299,342 | 12,024,000 | 2,004,000 | 2,281,472 | ||
| 84 | Mar 28, 2026 21:32 | 4,386 | 30,871,868 | 12,030,000 | 2,005,000 | 2,281,472 | ||
| 85 | Mar 28, 2026 21:30 | 4,388 | 29,738,040 | 13,039,000 | 1,003,000 | 2,281,472 | ||
| 86 | Mar 28, 2026 21:30 | 4,388 | 32,387,331 | 13,040,000 | 1,003,000 | 2,498,560 | ||
| 87 | Mar 28, 2026 21:31 | 4,391 | 30,499,641 | 12,044,000 | 2,007,000 | 2,506,752 | ||
| 88 | Mar 28, 2026 21:33 | 4,401 | 40,681,654 | 12,072,000 | 2,012,000 | 2,281,472 | ||
| 89 | Mar 28, 2026 21:33 | 4,406 | 38,807,734 | 13,091,000 | 1,007,000 | 2,494,464 | ||
| 90 | Mar 28, 2026 21:30 | 4,410 | 28,445,932 | 12,097,000 | 2,016,000 | 2,498,560 |