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 14:16 | 4,330 | 40,696,547 | 12,868,000 | 989,000 | 2,281,472 | ||
| 2 | Mar 28, 2026 14:13 | 4,332 | 43,608,838 | 12,872,000 | 990,000 | 2,502,656 | ||
| 3 | Mar 28, 2026 14:17 | 4,333 | 34,672,406 | 12,876,000 | 990,000 | 2,494,464 | ||
| 4 | Mar 28, 2026 14:16 | 4,333 | 30,390,513 | 12,875,000 | 990,000 | 2,498,560 | ||
| 5 | Mar 28, 2026 14:15 | 4,333 | 45,077,787 | 12,877,000 | 990,000 | 2,494,464 | ||
| 6 | Mar 28, 2026 14:16 | 4,334 | 29,777,781 | 12,878,000 | 990,000 | 2,498,560 | ||
| 7 | Mar 28, 2026 14:14 | 4,334 | 28,759,421 | 13,868,000 | 0 | 2,506,752 | ||
| 8 | Mar 28, 2026 14:13 | 4,334 | 38,376,310 | 12,878,000 | 990,000 | 2,281,472 | ||
| 9 | Mar 28, 2026 14:15 | 4,334 | 35,645,513 | 12,880,000 | 990,000 | 2,281,472 | ||
| 10 | Mar 28, 2026 14:15 | 4,334 | 43,278,552 | 13,869,000 | 0 | 2,494,464 | ||
| 11 | Mar 28, 2026 14:15 | 4,335 | 42,457,660 | 12,882,000 | 990,000 | 2,494,464 | ||
| 12 | Mar 28, 2026 14:15 | 4,335 | 28,617,734 | 13,872,000 | 0 | 2,494,464 | ||
| 13 | Mar 28, 2026 14:14 | 4,335 | 27,878,952 | 11,891,000 | 1,981,000 | 2,486,272 | ||
| 14 | Mar 28, 2026 14:14 | 4,336 | 42,946,626 | 12,883,000 | 991,000 | 2,281,472 | ||
| 15 | Mar 28, 2026 14:13 | 4,337 | 27,567,223 | 12,887,000 | 991,000 | 2,498,560 | ||
| 16 | Mar 28, 2026 14:14 | 4,337 | 26,892,869 | 13,879,000 | 0 | 2,494,464 | ||
| 17 | Mar 28, 2026 14:14 | 4,337 | 42,399,508 | 13,877,000 | 0 | 2,502,656 | ||
| 18 | Mar 28, 2026 14:16 | 4,337 | 30,065,706 | 12,887,000 | 991,000 | 2,498,560 | ||
| 19 | Mar 28, 2026 14:13 | 4,338 | 28,147,332 | 13,883,000 | 0 | 2,498,560 | ||
| 20 | Mar 28, 2026 14:15 | 4,338 | 33,636,618 | 13,882,000 | 0 | 2,498,560 | ||
| 21 | Mar 28, 2026 14:15 | 4,338 | 33,776,018 | 12,891,000 | 991,000 | 2,502,656 | ||
| 22 | Mar 28, 2026 14:16 | 4,338 | 32,846,280 | 12,889,000 | 991,000 | 2,494,464 | ||
| 23 | Mar 28, 2026 14:16 | 4,338 | 38,198,135 | 12,891,000 | 991,000 | 2,494,464 | ||
| 24 | Mar 28, 2026 14:14 | 4,339 | 31,575,061 | 12,894,000 | 991,000 | 2,281,472 | ||
| 25 | Mar 28, 2026 14:14 | 4,339 | 27,882,347 | 13,885,000 | 0 | 2,498,560 | ||
| 26 | Mar 28, 2026 14:14 | 4,339 | 28,878,390 | 13,884,000 | 0 | 2,494,464 | ||
| 27 | Mar 28, 2026 14:14 | 4,339 | 34,514,020 | 12,893,000 | 991,000 | 2,494,464 | ||
| 28 | Mar 28, 2026 14:13 | 4,340 | 27,994,751 | 12,897,000 | 992,000 | 2,273,280 | ||
| 29 | Mar 28, 2026 14:15 | 4,341 | 31,903,727 | 12,899,000 | 992,000 | 2,498,560 | ||
| 30 | Mar 28, 2026 14:16 | 4,341 | 34,669,084 | 12,899,000 | 992,000 | 2,281,472 | ||
| 31 | Mar 28, 2026 14:13 | 4,341 | 42,333,889 | 12,900,000 | 992,000 | 2,482,176 | ||
| 32 | Mar 28, 2026 14:14 | 4,341 | 38,801,280 | 12,899,000 | 992,000 | 2,498,560 | ||
| 33 | Mar 28, 2026 14:13 | 4,341 | 41,519,150 | 12,899,000 | 992,000 | 2,498,560 | ||
| 34 | Mar 28, 2026 14:15 | 4,342 | 39,879,308 | 13,895,000 | 0 | 2,490,368 | ||
| 35 | Mar 28, 2026 14:13 | 4,342 | 38,747,832 | 12,903,000 | 992,000 | 2,498,560 | ||
| 36 | Mar 28, 2026 14:16 | 4,342 | 32,653,107 | 12,903,000 | 992,000 | 2,494,464 | ||
| 37 | Mar 28, 2026 14:13 | 4,342 | 28,512,940 | 12,902,000 | 992,000 | 2,281,472 | ||
| 38 | Mar 28, 2026 14:16 | 4,342 | 30,759,206 | 12,902,000 | 992,000 | 2,273,280 | ||
| 39 | Mar 28, 2026 14:13 | 4,342 | 28,952,486 | 12,903,000 | 992,000 | 2,490,368 | ||
| 40 | Mar 28, 2026 14:16 | 4,342 | 35,300,453 | 12,901,000 | 992,000 | 2,490,368 | ||
| 41 | Mar 28, 2026 14:15 | 4,343 | 34,044,823 | 11,911,000 | 1,985,000 | 2,494,464 | ||
| 42 | Mar 28, 2026 14:14 | 4,343 | 35,904,580 | 12,906,000 | 992,000 | 2,494,464 | ||
| 43 | Mar 28, 2026 14:15 | 4,343 | 27,425,573 | 12,906,000 | 992,000 | 2,498,560 | ||
| 44 | Mar 28, 2026 14:13 | 4,343 | 35,602,919 | 12,905,000 | 992,000 | 2,281,472 | ||
| 45 | Mar 28, 2026 14:15 | 4,343 | 28,344,682 | 12,907,000 | 992,000 | 2,281,472 | ||
| 46 | Mar 28, 2026 14:16 | 4,343 | 38,243,540 | 12,905,000 | 992,000 | 2,498,560 | ||
| 47 | Mar 28, 2026 14:16 | 4,343 | 34,008,027 | 12,905,000 | 992,000 | 2,490,368 | ||
| 48 | Mar 28, 2026 14:14 | 4,343 | 39,804,804 | 12,904,000 | 992,000 | 2,490,368 | ||
| 49 | Mar 28, 2026 14:14 | 4,343 | 29,758,023 | 12,907,000 | 992,000 | 2,494,464 | ||
| 50 | Mar 28, 2026 14:14 | 4,344 | 42,389,293 | 12,909,000 | 993,000 | 2,281,472 | ||
| 51 | Mar 28, 2026 14:16 | 4,346 | 30,165,236 | 13,906,000 | 0 | 2,486,272 | ||
| 52 | Mar 28, 2026 14:14 | 4,346 | 34,696,656 | 13,907,000 | 0 | 2,486,272 | ||
| 53 | Mar 28, 2026 14:13 | 4,346 | 30,458,508 | 12,914,000 | 993,000 | 2,498,560 | ||
| 54 | Mar 28, 2026 14:14 | 4,347 | 39,656,195 | 13,909,000 | 0 | 2,281,472 | ||
| 55 | Mar 28, 2026 14:15 | 4,348 | 38,723,731 | 12,921,000 | 993,000 | 2,498,560 | ||
| 56 | Mar 28, 2026 14:14 | 4,348 | 34,806,605 | 12,920,000 | 993,000 | 2,281,472 | ||
| 57 | Mar 28, 2026 14:13 | 4,349 | 33,859,439 | 13,918,000 | 0 | 2,494,464 | ||
| 58 | Mar 28, 2026 14:13 | 4,349 | 34,814,522 | 13,916,000 | 0 | 2,281,472 | ||
| 59 | Mar 28, 2026 14:14 | 4,349 | 31,890,405 | 13,918,000 | 0 | 2,502,656 | ||
| 60 | Mar 28, 2026 14:15 | 4,349 | 42,433,815 | 13,918,000 | 0 | 2,281,472 | ||
| 61 | Mar 28, 2026 14:13 | 4,350 | 50,467,429 | 12,926,000 | 994,000 | 2,502,656 | ||
| 62 | Mar 28, 2026 14:13 | 4,350 | 28,617,079 | 12,926,000 | 994,000 | 2,281,472 | ||
| 63 | Mar 28, 2026 14:16 | 4,352 | 40,012,423 | 12,932,000 | 994,000 | 2,281,472 | ||
| 64 | Mar 28, 2026 14:14 | 4,353 | 28,749,008 | 12,935,000 | 995,000 | 2,494,464 | ||
| 65 | Mar 28, 2026 14:16 | 4,353 | 31,807,934 | 13,929,000 | 0 | 2,490,368 | ||
| 66 | Mar 28, 2026 14:14 | 4,354 | 41,354,779 | 13,934,000 | 0 | 2,281,472 | ||
| 67 | Mar 28, 2026 14:15 | 4,355 | 27,237,452 | 12,942,000 | 995,000 | 2,498,560 | ||
| 68 | Mar 28, 2026 14:15 | 4,356 | 35,314,257 | 11,948,000 | 1,991,000 | 2,490,368 | ||
| 69 | Mar 28, 2026 14:15 | 4,356 | 30,160,216 | 12,945,000 | 995,000 | 2,281,472 | ||
| 70 | Mar 28, 2026 14:17 | 4,356 | 38,064,057 | 12,943,000 | 995,000 | 2,535,424 | ||
| 71 | Mar 28, 2026 14:13 | 4,356 | 27,051,952 | 12,943,000 | 995,000 | 2,490,368 | ||
| 72 | Mar 28, 2026 14:16 | 4,359 | 25,990,359 | 12,953,000 | 996,000 | 2,494,464 | ||
| 73 | Mar 28, 2026 14:14 | 4,361 | 34,107,747 | 12,960,000 | 996,000 | 2,281,472 | ||
| 74 | Mar 28, 2026 14:16 | 4,363 | 32,254,254 | 12,966,000 | 997,000 | 2,494,464 | ||
| 75 | Mar 28, 2026 14:16 | 4,363 | 28,787,889 | 11,967,000 | 1,994,000 | 2,281,472 | ||
| 76 | Mar 28, 2026 14:13 | 4,363 | 40,595,050 | 12,963,000 | 997,000 | 2,281,472 | ||
| 77 | Mar 28, 2026 14:14 | 4,364 | 34,822,895 | 12,968,000 | 997,000 | 2,539,520 | ||
| 78 | Mar 28, 2026 14:14 | 4,365 | 27,022,536 | 12,972,000 | 997,000 | 2,281,472 | ||
| 79 | Mar 28, 2026 14:14 | 4,365 | 33,293,737 | 11,974,000 | 1,995,000 | 2,281,472 | ||
| 80 | Mar 28, 2026 14:17 | 4,368 | 30,935,761 | 12,979,000 | 998,000 | 2,490,368 | ||
| 81 | Mar 28, 2026 14:13 | 4,368 | 28,519,264 | 12,978,000 | 998,000 | 2,494,464 | ||
| 82 | Mar 28, 2026 14:13 | 4,368 | 27,839,448 | 12,980,000 | 998,000 | 2,494,464 | ||
| 83 | Mar 28, 2026 14:15 | 4,369 | 26,423,252 | 12,983,000 | 998,000 | 2,498,560 | ||
| 84 | Mar 28, 2026 14:16 | 4,370 | 26,248,738 | 11,987,000 | 1,997,000 | 2,494,464 | ||
| 85 | Mar 28, 2026 14:15 | 4,372 | 29,235,067 | 12,990,000 | 999,000 | 2,490,368 | ||
| 86 | Mar 28, 2026 14:16 | 4,375 | 32,759,758 | 13,000,000 | 1,000,000 | 2,277,376 | ||
| 87 | Mar 28, 2026 14:13 | 4,377 | 29,826,918 | 13,005,000 | 1,000,000 | 2,281,472 | ||
| 88 | Mar 28, 2026 14:16 | 4,377 | 30,916,000 | 13,006,000 | 1,000,000 | 2,486,272 | ||
| 89 | Mar 28, 2026 14:15 | 4,383 | 27,765,964 | 12,021,000 | 2,003,000 | 2,281,472 | ||
| 90 | Mar 28, 2026 14:15 | 4,393 | 31,788,862 | 12,050,000 | 2,008,000 | 2,281,472 |