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 17:27 | 4,327 | 35,366,389 | 12,858,000 | 989,000 | 2,281,472 | ||
| 2 | Mar 28, 2026 17:26 | 4,330 | 25,563,936 | 12,866,000 | 989,000 | 2,498,560 | ||
| 3 | Mar 28, 2026 17:27 | 4,331 | 29,652,593 | 11,879,000 | 1,979,000 | 2,494,464 | ||
| 4 | Mar 28, 2026 17:25 | 4,332 | 27,489,613 | 12,871,000 | 990,000 | 2,494,464 | ||
| 5 | Mar 28, 2026 17:25 | 4,333 | 30,499,760 | 12,875,000 | 990,000 | 2,281,472 | ||
| 6 | Mar 28, 2026 17:28 | 4,333 | 31,736,247 | 13,867,000 | 0 | 2,486,272 | ||
| 7 | Mar 28, 2026 17:26 | 4,333 | 29,348,206 | 12,877,000 | 990,000 | 2,482,176 | ||
| 8 | Mar 28, 2026 17:27 | 4,334 | 30,891,955 | 12,878,000 | 990,000 | 2,502,656 | ||
| 9 | Mar 28, 2026 17:28 | 4,337 | 29,693,940 | 13,877,000 | 0 | 2,486,272 | ||
| 10 | Mar 28, 2026 17:27 | 4,338 | 32,456,445 | 12,891,000 | 991,000 | 2,494,464 | ||
| 11 | Mar 28, 2026 17:26 | 4,338 | 28,432,819 | 12,892,000 | 991,000 | 2,498,560 | ||
| 12 | Mar 28, 2026 17:26 | 4,338 | 29,804,402 | 12,891,000 | 991,000 | 2,494,464 | ||
| 13 | Mar 28, 2026 17:25 | 4,338 | 32,734,086 | 12,889,000 | 991,000 | 2,281,472 | ||
| 14 | Mar 28, 2026 17:28 | 4,338 | 28,823,964 | 13,882,000 | 0 | 2,281,472 | ||
| 15 | Mar 28, 2026 17:27 | 4,339 | 39,133,822 | 12,895,000 | 991,000 | 2,502,656 | ||
| 16 | Mar 28, 2026 17:28 | 4,339 | 41,195,552 | 12,895,000 | 991,000 | 2,494,464 | ||
| 17 | Mar 28, 2026 17:28 | 4,340 | 44,371,971 | 12,897,000 | 992,000 | 2,281,472 | ||
| 18 | Mar 28, 2026 17:26 | 4,340 | 32,111,067 | 12,897,000 | 992,000 | 2,494,464 | ||
| 19 | Mar 28, 2026 17:25 | 4,341 | 28,140,222 | 13,892,000 | 0 | 2,502,656 | ||
| 20 | Mar 28, 2026 17:25 | 4,341 | 29,336,507 | 12,898,000 | 992,000 | 2,281,472 | ||
| 21 | Mar 28, 2026 17:25 | 4,342 | 31,116,374 | 12,903,000 | 992,000 | 2,498,560 | ||
| 22 | Mar 28, 2026 17:27 | 4,342 | 32,424,245 | 12,902,000 | 992,000 | 2,494,464 | ||
| 23 | Mar 28, 2026 17:27 | 4,343 | 28,409,202 | 12,905,000 | 992,000 | 2,502,656 | ||
| 24 | Mar 28, 2026 17:27 | 4,343 | 39,263,675 | 12,906,000 | 992,000 | 2,494,464 | ||
| 25 | Mar 28, 2026 17:27 | 4,343 | 40,716,533 | 12,906,000 | 992,000 | 2,494,464 | ||
| 26 | Mar 28, 2026 17:25 | 4,343 | 27,942,928 | 12,905,000 | 992,000 | 2,490,368 | ||
| 27 | Mar 28, 2026 17:25 | 4,343 | 33,685,410 | 12,907,000 | 992,000 | 2,494,464 | ||
| 28 | Mar 28, 2026 17:26 | 4,343 | 29,135,446 | 12,904,000 | 992,000 | 2,486,272 | ||
| 29 | Mar 28, 2026 17:27 | 4,344 | 30,212,592 | 12,908,000 | 992,000 | 2,281,472 | ||
| 30 | Mar 28, 2026 17:29 | 4,345 | 31,761,243 | 12,910,000 | 993,000 | 2,281,472 | ||
| 31 | Mar 28, 2026 17:26 | 4,345 | 32,908,523 | 12,911,000 | 993,000 | 2,277,376 | ||
| 32 | Mar 28, 2026 17:25 | 4,345 | 31,333,404 | 11,919,000 | 1,986,000 | 2,498,560 | ||
| 33 | Mar 28, 2026 17:25 | 4,346 | 34,644,538 | 12,913,000 | 993,000 | 2,281,472 | ||
| 34 | Mar 28, 2026 17:28 | 4,346 | 30,542,158 | 11,921,000 | 1,986,000 | 2,281,472 | ||
| 35 | Mar 28, 2026 17:28 | 4,347 | 29,319,565 | 12,918,000 | 993,000 | 2,494,464 | ||
| 36 | Mar 28, 2026 17:27 | 4,347 | 30,993,427 | 12,840,000 | 1,070,000 | 2,281,472 | ||
| 37 | Mar 28, 2026 17:28 | 4,347 | 34,710,338 | 12,917,000 | 993,000 | 2,490,368 | ||
| 38 | Mar 28, 2026 17:26 | 4,347 | 30,344,378 | 12,916,000 | 993,000 | 2,494,464 | ||
| 39 | Mar 28, 2026 17:25 | 4,348 | 29,769,743 | 13,912,000 | 0 | 2,498,560 | ||
| 40 | Mar 28, 2026 17:27 | 4,349 | 32,463,158 | 13,916,000 | 0 | 2,494,464 | ||
| 41 | Mar 28, 2026 17:26 | 4,350 | 29,231,022 | 12,926,000 | 994,000 | 2,502,656 | ||
| 42 | Mar 28, 2026 17:28 | 4,351 | 29,113,908 | 12,929,000 | 994,000 | 2,498,560 | ||
| 43 | Mar 28, 2026 17:27 | 4,351 | 28,979,831 | 12,930,000 | 994,000 | 2,281,472 | ||
| 44 | Mar 28, 2026 17:28 | 4,352 | 31,253,786 | 12,933,000 | 994,000 | 2,281,472 | ||
| 45 | Mar 28, 2026 17:26 | 4,352 | 27,265,524 | 12,931,000 | 994,000 | 2,502,656 | ||
| 46 | Mar 28, 2026 17:28 | 4,353 | 33,191,671 | 12,935,000 | 995,000 | 2,281,472 | ||
| 47 | Mar 28, 2026 17:27 | 4,353 | 32,032,237 | 13,928,000 | 0 | 2,486,272 | ||
| 48 | Mar 28, 2026 17:25 | 4,353 | 36,835,008 | 12,934,000 | 994,000 | 2,490,368 | ||
| 49 | Mar 28, 2026 17:28 | 4,353 | 30,202,219 | 11,940,000 | 1,990,000 | 2,490,368 | ||
| 50 | Mar 28, 2026 17:27 | 4,354 | 38,683,773 | 12,939,000 | 995,000 | 2,494,464 | ||
| 51 | Mar 28, 2026 17:25 | 4,354 | 30,710,387 | 12,939,000 | 995,000 | 2,486,272 | ||
| 52 | Mar 28, 2026 17:28 | 4,354 | 33,637,545 | 13,934,000 | 0 | 2,494,464 | ||
| 53 | Mar 28, 2026 17:26 | 4,355 | 28,617,951 | 12,941,000 | 995,000 | 2,482,176 | ||
| 54 | Mar 28, 2026 17:28 | 4,355 | 27,233,572 | 12,940,000 | 995,000 | 2,502,656 | ||
| 55 | Mar 28, 2026 17:27 | 4,356 | 30,074,506 | 12,943,000 | 995,000 | 2,486,272 | ||
| 56 | Mar 28, 2026 17:27 | 4,357 | 49,551,764 | 12,946,000 | 995,000 | 2,281,472 | ||
| 57 | Mar 28, 2026 17:28 | 4,357 | 32,027,740 | 12,947,000 | 995,000 | 2,281,472 | ||
| 58 | Mar 28, 2026 17:28 | 4,357 | 35,707,959 | 12,946,000 | 995,000 | 2,498,560 | ||
| 59 | Mar 28, 2026 17:27 | 4,358 | 28,440,300 | 12,948,000 | 996,000 | 2,539,520 | ||
| 60 | Mar 28, 2026 17:26 | 4,358 | 33,915,128 | 11,953,000 | 1,992,000 | 2,498,560 | ||
| 61 | Mar 28, 2026 17:27 | 4,358 | 31,903,912 | 12,949,000 | 996,000 | 2,281,472 | ||
| 62 | Mar 28, 2026 17:27 | 4,358 | 36,762,183 | 11,954,000 | 1,992,000 | 2,281,472 | ||
| 63 | Mar 28, 2026 17:28 | 4,358 | 29,641,326 | 12,950,000 | 996,000 | 2,277,376 | ||
| 64 | Mar 28, 2026 17:25 | 4,358 | 29,995,955 | 11,952,000 | 1,992,000 | 2,498,560 | ||
| 65 | Mar 28, 2026 17:29 | 4,359 | 31,378,176 | 12,952,000 | 996,000 | 2,490,368 | ||
| 66 | Mar 28, 2026 17:25 | 4,360 | 33,935,150 | 11,960,000 | 1,993,000 | 2,494,464 | ||
| 67 | Mar 28, 2026 17:27 | 4,360 | 35,344,183 | 12,956,000 | 996,000 | 2,490,368 | ||
| 68 | Mar 28, 2026 17:26 | 4,361 | 31,408,192 | 12,959,000 | 996,000 | 2,498,560 | ||
| 69 | Mar 28, 2026 17:27 | 4,363 | 35,779,347 | 12,966,000 | 997,000 | 2,281,472 | ||
| 70 | Mar 28, 2026 17:26 | 4,365 | 26,100,310 | 12,971,000 | 997,000 | 2,281,472 | ||
| 71 | Mar 28, 2026 17:27 | 4,366 | 35,502,469 | 12,974,000 | 998,000 | 2,498,560 | ||
| 72 | Mar 28, 2026 17:26 | 4,366 | 26,992,903 | 12,974,000 | 998,000 | 2,281,472 | ||
| 73 | Mar 28, 2026 17:28 | 4,367 | 34,217,419 | 12,975,000 | 998,000 | 2,494,464 | ||
| 74 | Mar 28, 2026 17:28 | 4,367 | 39,617,652 | 11,977,000 | 1,996,000 | 2,490,368 | ||
| 75 | Mar 28, 2026 17:26 | 4,367 | 36,622,844 | 11,979,000 | 1,996,000 | 2,494,464 | ||
| 76 | Mar 28, 2026 17:28 | 4,368 | 28,565,573 | 12,981,000 | 998,000 | 2,281,472 | ||
| 77 | Mar 28, 2026 17:26 | 4,369 | 28,138,930 | 11,983,000 | 1,997,000 | 2,498,560 | ||
| 78 | Mar 28, 2026 17:25 | 4,369 | 33,042,357 | 11,983,000 | 1,997,000 | 2,502,656 | ||
| 79 | Mar 28, 2026 17:28 | 4,369 | 31,221,079 | 11,984,000 | 1,997,000 | 2,281,472 | ||
| 80 | Mar 28, 2026 17:26 | 4,370 | 29,847,563 | 11,987,000 | 1,997,000 | 2,486,272 | ||
| 81 | Mar 28, 2026 17:28 | 4,374 | 29,922,992 | 12,998,000 | 999,000 | 2,502,656 | ||
| 82 | Mar 28, 2026 17:26 | 4,377 | 34,764,338 | 13,006,000 | 1,000,000 | 2,498,560 | ||
| 83 | Mar 28, 2026 17:29 | 4,378 | 37,098,252 | 13,011,000 | 1,000,000 | 2,281,472 | ||
| 84 | Mar 28, 2026 17:26 | 4,379 | 31,658,295 | 13,012,000 | 1,000,000 | 2,281,472 | ||
| 85 | Mar 28, 2026 17:25 | 4,379 | 31,536,223 | 13,012,000 | 1,000,000 | 2,490,368 | ||
| 86 | Mar 28, 2026 17:28 | 4,380 | 34,359,670 | 12,014,000 | 2,002,000 | 2,486,272 | ||
| 87 | Mar 28, 2026 17:26 | 4,390 | 33,053,843 | 13,044,000 | 1,003,000 | 2,281,472 | ||
| 88 | Mar 28, 2026 17:27 | 4,391 | 32,207,410 | 12,045,000 | 2,007,000 | 2,502,656 | ||
| 89 | Mar 28, 2026 17:25 | 4,393 | 35,805,860 | 12,048,000 | 2,008,000 | 2,494,464 | ||
| 90 | Mar 28, 2026 17:28 | 4,395 | 33,296,553 | 12,055,000 | 2,009,000 | 2,281,472 |