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 16:50 | 4,328 | 29,611,648 | 12,861,000 | 989,000 | 2,498,560 | ||
| 2 | Mar 28, 2026 16:50 | 4,329 | 29,348,559 | 12,863,000 | 989,000 | 2,502,656 | ||
| 3 | Mar 28, 2026 16:50 | 4,332 | 29,519,091 | 13,863,000 | 0 | 2,498,560 | ||
| 4 | Mar 28, 2026 16:52 | 4,333 | 27,562,287 | 12,877,000 | 990,000 | 2,486,272 | ||
| 5 | Mar 28, 2026 16:53 | 4,333 | 28,785,844 | 12,875,000 | 990,000 | 2,490,368 | ||
| 6 | Mar 28, 2026 16:51 | 4,334 | 29,715,055 | 12,880,000 | 990,000 | 2,498,560 | ||
| 7 | Mar 28, 2026 16:54 | 4,334 | 29,911,910 | 13,869,000 | 0 | 2,494,464 | ||
| 8 | Mar 28, 2026 16:50 | 4,336 | 29,782,277 | 12,883,000 | 991,000 | 2,281,472 | ||
| 9 | Mar 28, 2026 16:52 | 4,337 | 40,243,264 | 12,888,000 | 991,000 | 2,502,656 | ||
| 10 | Mar 28, 2026 16:51 | 4,337 | 30,021,136 | 12,886,000 | 991,000 | 2,494,464 | ||
| 11 | Mar 28, 2026 16:52 | 4,337 | 30,001,779 | 12,888,000 | 991,000 | 2,490,368 | ||
| 12 | Mar 28, 2026 16:50 | 4,337 | 38,291,071 | 12,888,000 | 991,000 | 2,498,560 | ||
| 13 | Mar 28, 2026 16:53 | 4,337 | 41,171,774 | 12,886,000 | 991,000 | 2,490,368 | ||
| 14 | Mar 28, 2026 16:51 | 4,338 | 27,537,892 | 12,889,000 | 991,000 | 2,498,560 | ||
| 15 | Mar 28, 2026 16:54 | 4,338 | 26,846,792 | 12,889,000 | 991,000 | 2,490,368 | ||
| 16 | Mar 28, 2026 16:54 | 4,338 | 28,540,514 | 12,891,000 | 991,000 | 2,490,368 | ||
| 17 | Mar 28, 2026 16:53 | 4,339 | 30,516,573 | 13,884,000 | 0 | 2,494,464 | ||
| 18 | Mar 28, 2026 16:53 | 4,339 | 34,107,596 | 12,895,000 | 991,000 | 2,281,472 | ||
| 19 | Mar 28, 2026 16:50 | 4,339 | 32,418,331 | 12,893,000 | 991,000 | 2,281,472 | ||
| 20 | Mar 28, 2026 16:53 | 4,339 | 29,167,811 | 12,895,000 | 991,000 | 2,494,464 | ||
| 21 | Mar 28, 2026 16:51 | 4,339 | 38,301,427 | 11,901,000 | 1,983,000 | 2,486,272 | ||
| 22 | Mar 28, 2026 16:51 | 4,340 | 33,390,492 | 13,889,000 | 0 | 2,490,368 | ||
| 23 | Mar 28, 2026 16:51 | 4,340 | 40,019,303 | 12,897,000 | 992,000 | 2,498,560 | ||
| 24 | Mar 28, 2026 16:52 | 4,341 | 32,617,170 | 11,908,000 | 1,984,000 | 2,281,472 | ||
| 25 | Mar 28, 2026 16:50 | 4,342 | 27,356,368 | 12,902,000 | 992,000 | 2,281,472 | ||
| 26 | Mar 28, 2026 16:52 | 4,343 | 29,276,767 | 12,905,000 | 992,000 | 2,494,464 | ||
| 27 | Mar 28, 2026 16:52 | 4,343 | 27,545,250 | 12,904,000 | 992,000 | 2,490,368 | ||
| 28 | Mar 28, 2026 16:52 | 4,343 | 37,588,212 | 12,906,000 | 992,000 | 2,281,472 | ||
| 29 | Mar 28, 2026 16:53 | 4,343 | 26,916,891 | 12,904,000 | 992,000 | 2,281,472 | ||
| 30 | Mar 28, 2026 16:54 | 4,343 | 40,436,943 | 13,896,000 | 0 | 2,281,472 | ||
| 31 | Mar 28, 2026 16:50 | 4,343 | 47,459,924 | 12,905,000 | 992,000 | 2,498,560 | ||
| 32 | Mar 28, 2026 16:50 | 4,343 | 28,663,066 | 12,904,000 | 992,000 | 2,498,560 | ||
| 33 | Mar 28, 2026 16:51 | 4,344 | 42,547,328 | 12,909,000 | 993,000 | 2,273,280 | ||
| 34 | Mar 28, 2026 16:52 | 4,344 | 31,873,576 | 13,902,000 | 0 | 2,490,368 | ||
| 35 | Mar 28, 2026 16:51 | 4,345 | 40,188,639 | 12,910,000 | 993,000 | 2,490,368 | ||
| 36 | Mar 28, 2026 16:53 | 4,345 | 37,106,906 | 11,919,000 | 1,986,000 | 2,498,560 | ||
| 37 | Mar 28, 2026 16:50 | 4,345 | 35,539,028 | 13,903,000 | 0 | 2,281,472 | ||
| 38 | Mar 28, 2026 16:51 | 4,347 | 29,815,406 | 12,916,000 | 993,000 | 2,494,464 | ||
| 39 | Mar 28, 2026 16:52 | 4,347 | 26,769,429 | 13,911,000 | 0 | 2,281,472 | ||
| 40 | Mar 28, 2026 16:52 | 4,347 | 41,949,049 | 13,909,000 | 0 | 2,281,472 | ||
| 41 | Mar 28, 2026 16:52 | 4,348 | 30,754,734 | 13,915,000 | 0 | 2,502,656 | ||
| 42 | Mar 28, 2026 16:50 | 4,348 | 29,973,871 | 12,921,000 | 993,000 | 2,490,368 | ||
| 43 | Mar 28, 2026 16:50 | 4,348 | 28,412,179 | 11,927,000 | 1,987,000 | 2,490,368 | ||
| 44 | Mar 28, 2026 16:53 | 4,348 | 33,067,438 | 13,912,000 | 0 | 2,281,472 | ||
| 45 | Mar 28, 2026 16:53 | 4,348 | 26,879,385 | 13,914,000 | 0 | 2,494,464 | ||
| 46 | Mar 28, 2026 16:50 | 4,348 | 29,171,965 | 12,919,000 | 993,000 | 2,490,368 | ||
| 47 | Mar 28, 2026 16:54 | 4,349 | 29,885,193 | 11,929,000 | 1,988,000 | 2,486,272 | ||
| 48 | Mar 28, 2026 16:52 | 4,350 | 42,196,140 | 12,927,000 | 994,000 | 2,498,560 | ||
| 49 | Mar 28, 2026 16:53 | 4,350 | 43,179,332 | 12,927,000 | 994,000 | 2,498,560 | ||
| 50 | Mar 28, 2026 16:53 | 4,351 | 26,929,948 | 11,935,000 | 1,989,000 | 2,281,472 | ||
| 51 | Mar 28, 2026 16:51 | 4,351 | 31,680,954 | 12,928,000 | 994,000 | 2,498,560 | ||
| 52 | Mar 28, 2026 16:53 | 4,353 | 38,255,148 | 12,935,000 | 995,000 | 2,490,368 | ||
| 53 | Mar 28, 2026 16:52 | 4,353 | 30,076,832 | 11,940,000 | 1,990,000 | 2,498,560 | ||
| 54 | Mar 28, 2026 16:53 | 4,354 | 27,934,948 | 12,937,000 | 995,000 | 2,535,424 | ||
| 55 | Mar 28, 2026 16:50 | 4,354 | 38,595,449 | 12,938,000 | 995,000 | 2,494,464 | ||
| 56 | Mar 28, 2026 16:53 | 4,354 | 31,030,652 | 12,938,000 | 995,000 | 2,281,472 | ||
| 57 | Mar 28, 2026 16:51 | 4,354 | 27,947,651 | 12,938,000 | 995,000 | 2,498,560 | ||
| 58 | Mar 28, 2026 16:51 | 4,354 | 31,354,769 | 11,944,000 | 1,990,000 | 2,494,464 | ||
| 59 | Mar 28, 2026 16:51 | 4,354 | 28,205,592 | 11,944,000 | 1,990,000 | 2,494,464 | ||
| 60 | Mar 28, 2026 16:52 | 4,355 | 26,011,165 | 12,942,000 | 995,000 | 2,281,472 | ||
| 61 | Mar 28, 2026 16:52 | 4,356 | 27,296,583 | 12,943,000 | 995,000 | 2,494,464 | ||
| 62 | Mar 28, 2026 16:51 | 4,357 | 26,579,167 | 12,946,000 | 995,000 | 2,281,472 | ||
| 63 | Mar 28, 2026 16:52 | 4,357 | 34,110,713 | 11,951,000 | 1,991,000 | 2,498,560 | ||
| 64 | Mar 28, 2026 16:50 | 4,361 | 41,388,515 | 12,960,000 | 996,000 | 2,281,472 | ||
| 65 | Mar 28, 2026 16:50 | 4,361 | 30,355,286 | 12,959,000 | 996,000 | 2,490,368 | ||
| 66 | Mar 28, 2026 16:53 | 4,362 | 34,711,368 | 11,964,000 | 1,994,000 | 2,498,560 | ||
| 67 | Mar 28, 2026 16:51 | 4,362 | 31,483,427 | 12,962,000 | 997,000 | 2,281,472 | ||
| 68 | Mar 28, 2026 16:52 | 4,362 | 30,105,951 | 12,961,000 | 997,000 | 2,494,464 | ||
| 69 | Mar 28, 2026 16:53 | 4,364 | 30,125,786 | 12,969,000 | 997,000 | 2,281,472 | ||
| 70 | Mar 28, 2026 16:53 | 4,365 | 30,306,981 | 11,972,000 | 1,995,000 | 2,498,560 | ||
| 71 | Mar 28, 2026 16:53 | 4,365 | 33,018,342 | 12,971,000 | 997,000 | 2,498,560 | ||
| 72 | Mar 28, 2026 16:50 | 4,366 | 33,922,478 | 12,974,000 | 998,000 | 2,502,656 | ||
| 73 | Mar 28, 2026 16:50 | 4,368 | 30,946,203 | 12,981,000 | 998,000 | 2,494,464 | ||
| 74 | Mar 28, 2026 16:50 | 4,369 | 37,667,774 | 11,985,000 | 1,997,000 | 2,281,472 | ||
| 75 | Mar 28, 2026 16:50 | 4,372 | 29,876,855 | 11,991,000 | 1,998,000 | 2,277,376 | ||
| 76 | Mar 28, 2026 16:52 | 4,372 | 36,440,236 | 12,990,000 | 999,000 | 2,498,560 | ||
| 77 | Mar 28, 2026 16:51 | 4,373 | 28,777,380 | 11,994,000 | 1,999,000 | 2,498,560 | ||
| 78 | Mar 28, 2026 16:51 | 4,373 | 29,266,344 | 12,996,000 | 999,000 | 2,281,472 | ||
| 79 | Mar 28, 2026 16:51 | 4,373 | 46,393,876 | 12,995,000 | 999,000 | 2,498,560 | ||
| 80 | Mar 28, 2026 16:54 | 4,375 | 30,060,308 | 12,001,000 | 2,000,000 | 2,498,560 | ||
| 81 | Mar 28, 2026 16:51 | 4,376 | 34,068,899 | 12,003,000 | 2,000,000 | 2,281,472 | ||
| 82 | Mar 28, 2026 16:51 | 4,377 | 32,505,295 | 13,005,000 | 1,000,000 | 2,535,424 | ||
| 83 | Mar 28, 2026 16:52 | 4,378 | 29,918,765 | 13,009,000 | 1,000,000 | 2,490,368 | ||
| 84 | Mar 28, 2026 16:52 | 4,383 | 31,391,812 | 12,023,000 | 2,003,000 | 2,281,472 | ||
| 85 | Mar 28, 2026 16:52 | 4,393 | 35,050,464 | 13,054,000 | 1,004,000 | 2,281,472 | ||
| 86 | Mar 28, 2026 16:51 | 4,395 | 37,487,920 | 13,059,000 | 1,004,000 | 2,494,464 | ||
| 87 | Mar 28, 2026 16:50 | 4,406 | 33,799,737 | 12,086,000 | 2,014,000 | 2,490,368 | ||
| 88 | Mar 28, 2026 16:53 | 4,529 | 32,920,043 | 13,459,000 | 1,035,000 | 2,494,464 | ||
| 89 | Mar 28, 2026 16:53 | 4,540 | 30,905,794 | 13,492,000 | 1,037,000 | 2,494,464 | ||
| 90 | Mar 28, 2026 16:53 | 4,561 | 39,060,207 | 13,553,000 | 1,042,000 | 2,498,560 |