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 18:11 | 4,326 | 31,217,480 | 12,856,000 | 988,000 | 2,281,472 | ||
| 2 | Mar 28, 2026 18:10 | 4,333 | 29,721,500 | 12,875,000 | 990,000 | 2,490,368 | ||
| 3 | Mar 28, 2026 18:13 | 4,333 | 31,775,666 | 12,876,000 | 990,000 | 2,498,560 | ||
| 4 | Mar 28, 2026 18:14 | 4,334 | 43,980,497 | 12,878,000 | 990,000 | 2,498,560 | ||
| 5 | Mar 28, 2026 18:10 | 4,336 | 34,515,702 | 12,885,000 | 991,000 | 2,281,472 | ||
| 6 | Mar 28, 2026 18:11 | 4,337 | 28,537,894 | 13,877,000 | 0 | 2,494,464 | ||
| 7 | Mar 28, 2026 18:10 | 4,337 | 31,709,417 | 12,887,000 | 991,000 | 2,490,368 | ||
| 8 | Mar 28, 2026 18:13 | 4,337 | 39,669,463 | 12,888,000 | 991,000 | 2,498,560 | ||
| 9 | Mar 28, 2026 18:10 | 4,337 | 30,161,297 | 12,886,000 | 991,000 | 2,281,472 | ||
| 10 | Mar 28, 2026 18:14 | 4,338 | 27,497,903 | 13,883,000 | 0 | 2,498,560 | ||
| 11 | Mar 28, 2026 18:11 | 4,338 | 29,808,129 | 12,892,000 | 991,000 | 2,490,368 | ||
| 12 | Mar 28, 2026 18:12 | 4,339 | 33,179,306 | 11,903,000 | 1,983,000 | 2,494,464 | ||
| 13 | Mar 28, 2026 18:13 | 4,339 | 38,079,001 | 12,895,000 | 991,000 | 2,502,656 | ||
| 14 | Mar 28, 2026 18:13 | 4,339 | 37,908,150 | 12,895,000 | 991,000 | 2,494,464 | ||
| 15 | Mar 28, 2026 18:11 | 4,339 | 29,826,691 | 12,894,000 | 991,000 | 2,490,368 | ||
| 16 | Mar 28, 2026 18:12 | 4,339 | 30,612,400 | 12,893,000 | 991,000 | 2,494,464 | ||
| 17 | Mar 28, 2026 18:11 | 4,340 | 29,284,132 | 12,897,000 | 992,000 | 2,498,560 | ||
| 18 | Mar 28, 2026 18:13 | 4,341 | 28,755,978 | 12,898,000 | 992,000 | 2,498,560 | ||
| 19 | Mar 28, 2026 18:13 | 4,342 | 41,326,583 | 12,903,000 | 992,000 | 2,281,472 | ||
| 20 | Mar 28, 2026 18:11 | 4,342 | 27,949,119 | 12,901,000 | 992,000 | 2,494,464 | ||
| 21 | Mar 28, 2026 18:11 | 4,342 | 25,793,477 | 12,903,000 | 992,000 | 2,490,368 | ||
| 22 | Mar 28, 2026 18:11 | 4,343 | 40,299,970 | 12,904,000 | 992,000 | 2,494,464 | ||
| 23 | Mar 28, 2026 18:12 | 4,343 | 34,928,503 | 12,907,000 | 992,000 | 2,281,472 | ||
| 24 | Mar 28, 2026 18:13 | 4,343 | 28,666,493 | 12,904,000 | 992,000 | 2,490,368 | ||
| 25 | Mar 28, 2026 18:14 | 4,343 | 28,319,580 | 12,906,000 | 992,000 | 2,281,472 | ||
| 26 | Mar 28, 2026 18:10 | 4,343 | 35,224,333 | 12,829,000 | 1,069,000 | 2,486,272 | ||
| 27 | Mar 28, 2026 18:13 | 4,344 | 38,387,139 | 12,909,000 | 993,000 | 2,498,560 | ||
| 28 | Mar 28, 2026 18:11 | 4,345 | 40,821,940 | 13,903,000 | 0 | 2,281,472 | ||
| 29 | Mar 28, 2026 18:14 | 4,345 | 28,642,114 | 12,911,000 | 993,000 | 2,494,464 | ||
| 30 | Mar 28, 2026 18:11 | 4,345 | 30,579,883 | 12,910,000 | 993,000 | 2,498,560 | ||
| 31 | Mar 28, 2026 18:11 | 4,345 | 37,010,280 | 11,918,000 | 1,986,000 | 2,281,472 | ||
| 32 | Mar 28, 2026 18:13 | 4,345 | 38,199,030 | 12,910,000 | 993,000 | 2,498,560 | ||
| 33 | Mar 28, 2026 18:11 | 4,345 | 29,568,343 | 12,911,000 | 993,000 | 2,281,472 | ||
| 34 | Mar 28, 2026 18:12 | 4,346 | 38,243,252 | 13,907,000 | 0 | 2,494,464 | ||
| 35 | Mar 28, 2026 18:11 | 4,346 | 35,120,487 | 12,915,000 | 993,000 | 2,281,472 | ||
| 36 | Mar 28, 2026 18:12 | 4,347 | 36,634,275 | 11,922,000 | 1,987,000 | 2,494,464 | ||
| 37 | Mar 28, 2026 18:13 | 4,348 | 34,233,576 | 12,921,000 | 993,000 | 2,490,368 | ||
| 38 | Mar 28, 2026 18:12 | 4,348 | 30,220,854 | 12,919,000 | 993,000 | 2,502,656 | ||
| 39 | Mar 28, 2026 18:13 | 4,348 | 28,902,141 | 12,921,000 | 993,000 | 2,281,472 | ||
| 40 | Mar 28, 2026 18:13 | 4,349 | 29,708,407 | 12,924,000 | 994,000 | 2,281,472 | ||
| 41 | Mar 28, 2026 18:12 | 4,349 | 33,949,456 | 13,916,000 | 0 | 2,281,472 | ||
| 42 | Mar 28, 2026 18:10 | 4,351 | 35,451,062 | 12,928,000 | 994,000 | 2,281,472 | ||
| 43 | Mar 28, 2026 18:13 | 4,351 | 35,720,992 | 11,934,000 | 1,989,000 | 2,490,368 | ||
| 44 | Mar 28, 2026 18:14 | 4,352 | 44,084,988 | 12,932,000 | 994,000 | 2,490,368 | ||
| 45 | Mar 28, 2026 18:10 | 4,353 | 32,847,425 | 12,934,000 | 994,000 | 2,494,464 | ||
| 46 | Mar 28, 2026 18:10 | 4,353 | 38,328,295 | 12,935,000 | 995,000 | 2,281,472 | ||
| 47 | Mar 28, 2026 18:13 | 4,353 | 28,170,806 | 12,935,000 | 995,000 | 2,490,368 | ||
| 48 | Mar 28, 2026 18:11 | 4,354 | 27,008,229 | 13,934,000 | 0 | 2,490,368 | ||
| 49 | Mar 28, 2026 18:12 | 4,355 | 29,875,901 | 12,940,000 | 995,000 | 2,494,464 | ||
| 50 | Mar 28, 2026 18:13 | 4,355 | 32,187,871 | 12,940,000 | 995,000 | 2,494,464 | ||
| 51 | Mar 28, 2026 18:11 | 4,355 | 29,910,305 | 12,942,000 | 995,000 | 2,281,472 | ||
| 52 | Mar 28, 2026 18:11 | 4,356 | 29,576,534 | 12,943,000 | 995,000 | 2,281,472 | ||
| 53 | Mar 28, 2026 18:12 | 4,356 | 28,573,161 | 12,944,000 | 995,000 | 2,494,464 | ||
| 54 | Mar 28, 2026 18:12 | 4,357 | 28,125,104 | 12,946,000 | 995,000 | 2,490,368 | ||
| 55 | Mar 28, 2026 18:13 | 4,357 | 29,312,726 | 12,947,000 | 995,000 | 2,535,424 | ||
| 56 | Mar 28, 2026 18:13 | 4,358 | 27,384,551 | 12,950,000 | 996,000 | 2,498,560 | ||
| 57 | Mar 28, 2026 18:13 | 4,358 | 33,241,490 | 12,949,000 | 996,000 | 2,281,472 | ||
| 58 | Mar 28, 2026 18:10 | 4,358 | 39,717,832 | 12,949,000 | 996,000 | 2,506,752 | ||
| 59 | Mar 28, 2026 18:13 | 4,358 | 34,884,191 | 12,950,000 | 996,000 | 2,281,472 | ||
| 60 | Mar 28, 2026 18:12 | 4,360 | 29,564,881 | 13,952,000 | 0 | 2,498,560 | ||
| 61 | Mar 28, 2026 18:13 | 4,361 | 29,221,329 | 11,961,000 | 1,993,000 | 2,502,656 | ||
| 62 | Mar 28, 2026 18:12 | 4,361 | 33,881,430 | 12,960,000 | 996,000 | 2,281,472 | ||
| 63 | Mar 28, 2026 18:12 | 4,362 | 31,342,039 | 12,962,000 | 997,000 | 2,281,472 | ||
| 64 | Mar 28, 2026 18:11 | 4,363 | 35,222,865 | 12,966,000 | 997,000 | 2,281,472 | ||
| 65 | Mar 28, 2026 18:13 | 4,363 | 28,705,459 | 12,965,000 | 997,000 | 2,498,560 | ||
| 66 | Mar 28, 2026 18:13 | 4,364 | 31,394,465 | 12,968,000 | 997,000 | 2,490,368 | ||
| 67 | Mar 28, 2026 18:12 | 4,365 | 30,465,297 | 11,972,000 | 1,995,000 | 2,535,424 | ||
| 68 | Mar 28, 2026 18:13 | 4,365 | 30,886,339 | 11,974,000 | 1,995,000 | 2,281,472 | ||
| 69 | Mar 28, 2026 18:10 | 4,365 | 27,760,562 | 12,970,000 | 997,000 | 2,494,464 | ||
| 70 | Mar 28, 2026 18:11 | 4,366 | 26,683,645 | 12,973,000 | 997,000 | 2,281,472 | ||
| 71 | Mar 28, 2026 18:11 | 4,368 | 28,015,550 | 12,979,000 | 998,000 | 2,502,656 | ||
| 72 | Mar 28, 2026 18:12 | 4,368 | 31,101,604 | 11,980,000 | 1,996,000 | 2,502,656 | ||
| 73 | Mar 28, 2026 18:12 | 4,368 | 29,748,698 | 12,978,000 | 998,000 | 2,490,368 | ||
| 74 | Mar 28, 2026 18:12 | 4,368 | 31,163,826 | 12,978,000 | 998,000 | 2,281,472 | ||
| 75 | Mar 28, 2026 18:10 | 4,369 | 36,608,974 | 12,984,000 | 998,000 | 2,494,464 | ||
| 76 | Mar 28, 2026 18:12 | 4,369 | 28,592,257 | 12,984,000 | 998,000 | 2,281,472 | ||
| 77 | Mar 28, 2026 18:12 | 4,369 | 32,305,927 | 11,984,000 | 1,997,000 | 2,281,472 | ||
| 78 | Mar 28, 2026 18:12 | 4,369 | 36,149,517 | 12,982,000 | 998,000 | 2,498,560 | ||
| 79 | Mar 28, 2026 18:12 | 4,370 | 30,480,683 | 12,985,000 | 998,000 | 2,502,656 | ||
| 80 | Mar 28, 2026 18:11 | 4,371 | 29,100,622 | 12,988,000 | 999,000 | 2,498,560 | ||
| 81 | Mar 28, 2026 18:13 | 4,372 | 39,547,623 | 12,992,000 | 999,000 | 2,281,472 | ||
| 82 | Mar 28, 2026 18:10 | 4,375 | 30,270,189 | 13,001,000 | 1,000,000 | 2,502,656 | ||
| 83 | Mar 28, 2026 18:11 | 4,375 | 40,973,477 | 12,001,000 | 2,000,000 | 2,502,656 | ||
| 84 | Mar 28, 2026 18:11 | 4,375 | 27,978,824 | 13,000,000 | 1,000,000 | 2,494,464 | ||
| 85 | Mar 28, 2026 18:11 | 4,379 | 33,307,146 | 13,013,000 | 1,001,000 | 2,281,472 | ||
| 86 | Mar 28, 2026 18:11 | 4,383 | 33,471,847 | 12,022,000 | 2,003,000 | 2,281,472 | ||
| 87 | Mar 28, 2026 18:14 | 4,385 | 29,807,610 | 13,030,000 | 1,002,000 | 2,277,376 | ||
| 88 | Mar 28, 2026 18:12 | 4,405 | 31,478,022 | 12,083,000 | 2,013,000 | 2,281,472 | ||
| 89 | Mar 28, 2026 18:12 | 4,413 | 27,576,795 | 13,113,000 | 1,008,000 | 2,281,472 | ||
| 90 | Mar 28, 2026 18:12 | 4,418 | 31,780,783 | 12,117,000 | 2,019,000 | 2,498,560 |