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 16:27 | 4,330 | 37,798,671 | 11,877,000 | 1,979,000 | 2,490,368 | ||
| 2 | Mar 28, 2026 16:25 | 4,332 | 26,824,841 | 11,883,000 | 1,980,000 | 2,494,464 | ||
| 3 | Mar 28, 2026 16:26 | 4,334 | 37,850,101 | 13,870,000 | 0 | 2,490,368 | ||
| 4 | Mar 28, 2026 16:26 | 4,335 | 39,251,802 | 12,881,000 | 990,000 | 2,490,368 | ||
| 5 | Mar 28, 2026 16:27 | 4,335 | 31,891,996 | 13,872,000 | 0 | 2,498,560 | ||
| 6 | Mar 28, 2026 16:25 | 4,337 | 30,240,622 | 12,887,000 | 991,000 | 2,281,472 | ||
| 7 | Mar 28, 2026 16:25 | 4,337 | 29,201,568 | 13,877,000 | 0 | 2,494,464 | ||
| 8 | Mar 28, 2026 16:27 | 4,338 | 27,647,983 | 12,890,000 | 991,000 | 2,494,464 | ||
| 9 | Mar 28, 2026 16:25 | 4,338 | 34,489,482 | 12,891,000 | 991,000 | 2,490,368 | ||
| 10 | Mar 28, 2026 16:27 | 4,338 | 40,635,388 | 12,892,000 | 991,000 | 2,490,368 | ||
| 11 | Mar 28, 2026 16:28 | 4,338 | 31,861,730 | 12,889,000 | 991,000 | 2,486,272 | ||
| 12 | Mar 28, 2026 16:27 | 4,338 | 29,438,788 | 12,889,000 | 991,000 | 2,494,464 | ||
| 13 | Mar 28, 2026 16:29 | 4,338 | 34,149,938 | 11,899,000 | 1,983,000 | 2,494,464 | ||
| 14 | Mar 28, 2026 16:27 | 4,339 | 29,746,670 | 12,893,000 | 991,000 | 2,281,472 | ||
| 15 | Mar 28, 2026 16:27 | 4,339 | 27,980,676 | 12,894,000 | 991,000 | 2,494,464 | ||
| 16 | Mar 28, 2026 16:28 | 4,339 | 30,272,355 | 12,894,000 | 991,000 | 2,490,368 | ||
| 17 | Mar 28, 2026 16:25 | 4,340 | 30,331,029 | 12,897,000 | 992,000 | 2,490,368 | ||
| 18 | Mar 28, 2026 16:25 | 4,340 | 27,154,650 | 12,896,000 | 992,000 | 2,494,464 | ||
| 19 | Mar 28, 2026 16:25 | 4,341 | 43,123,253 | 12,899,000 | 992,000 | 2,281,472 | ||
| 20 | Mar 28, 2026 16:25 | 4,341 | 33,436,751 | 11,908,000 | 1,984,000 | 2,498,560 | ||
| 21 | Mar 28, 2026 16:28 | 4,341 | 31,939,817 | 13,890,000 | 0 | 2,498,560 | ||
| 22 | Mar 28, 2026 16:28 | 4,341 | 33,860,508 | 12,900,000 | 992,000 | 2,498,560 | ||
| 23 | Mar 28, 2026 16:25 | 4,341 | 32,944,367 | 11,908,000 | 1,984,000 | 2,486,272 | ||
| 24 | Mar 28, 2026 16:24 | 4,342 | 27,547,239 | 12,902,000 | 992,000 | 2,494,464 | ||
| 25 | Mar 28, 2026 16:28 | 4,342 | 27,769,796 | 12,903,000 | 992,000 | 2,490,368 | ||
| 26 | Mar 28, 2026 16:29 | 4,343 | 37,674,708 | 12,905,000 | 992,000 | 2,281,472 | ||
| 27 | Mar 28, 2026 16:26 | 4,345 | 33,934,025 | 11,917,000 | 1,986,000 | 2,281,472 | ||
| 28 | Mar 28, 2026 16:28 | 4,345 | 26,139,997 | 12,912,000 | 993,000 | 2,494,464 | ||
| 29 | Mar 28, 2026 16:28 | 4,347 | 31,754,477 | 12,918,000 | 993,000 | 2,539,520 | ||
| 30 | Mar 28, 2026 16:26 | 4,347 | 38,608,247 | 12,918,000 | 993,000 | 2,498,560 | ||
| 31 | Mar 28, 2026 16:25 | 4,347 | 29,206,548 | 12,916,000 | 993,000 | 2,498,560 | ||
| 32 | Mar 28, 2026 16:25 | 4,347 | 34,551,934 | 13,911,000 | 0 | 2,498,560 | ||
| 33 | Mar 28, 2026 16:26 | 4,348 | 28,705,902 | 13,912,000 | 0 | 2,281,472 | ||
| 34 | Mar 28, 2026 16:28 | 4,348 | 29,345,187 | 13,914,000 | 0 | 2,502,656 | ||
| 35 | Mar 28, 2026 16:26 | 4,349 | 30,959,697 | 12,923,000 | 994,000 | 2,281,472 | ||
| 36 | Mar 28, 2026 16:26 | 4,349 | 28,277,891 | 12,923,000 | 994,000 | 2,502,656 | ||
| 37 | Mar 28, 2026 16:27 | 4,349 | 28,906,030 | 12,924,000 | 994,000 | 2,281,472 | ||
| 38 | Mar 28, 2026 16:27 | 4,349 | 26,589,099 | 13,917,000 | 0 | 2,498,560 | ||
| 39 | Mar 28, 2026 16:27 | 4,350 | 29,984,495 | 12,925,000 | 994,000 | 2,494,464 | ||
| 40 | Mar 28, 2026 16:27 | 4,350 | 38,069,103 | 13,921,000 | 0 | 2,281,472 | ||
| 41 | Mar 28, 2026 16:28 | 4,351 | 36,571,512 | 13,923,000 | 0 | 2,281,472 | ||
| 42 | Mar 28, 2026 16:26 | 4,351 | 34,809,895 | 12,930,000 | 994,000 | 2,494,464 | ||
| 43 | Mar 28, 2026 16:26 | 4,351 | 34,934,314 | 12,930,000 | 994,000 | 2,498,560 | ||
| 44 | Mar 28, 2026 16:26 | 4,352 | 36,779,119 | 11,938,000 | 1,989,000 | 2,502,656 | ||
| 45 | Mar 28, 2026 16:27 | 4,352 | 33,490,323 | 12,933,000 | 994,000 | 2,498,560 | ||
| 46 | Mar 28, 2026 16:28 | 4,352 | 36,371,356 | 13,926,000 | 0 | 2,498,560 | ||
| 47 | Mar 28, 2026 16:28 | 4,353 | 28,152,910 | 13,929,000 | 0 | 2,494,464 | ||
| 48 | Mar 28, 2026 16:28 | 4,353 | 37,640,984 | 12,936,000 | 995,000 | 2,281,472 | ||
| 49 | Mar 28, 2026 16:26 | 4,354 | 30,592,775 | 13,932,000 | 0 | 2,494,464 | ||
| 50 | Mar 28, 2026 16:28 | 4,354 | 29,916,088 | 13,933,000 | 0 | 2,281,472 | ||
| 51 | Mar 28, 2026 16:28 | 4,355 | 30,740,532 | 12,940,000 | 995,000 | 2,281,472 | ||
| 52 | Mar 28, 2026 16:26 | 4,355 | 32,164,311 | 12,942,000 | 995,000 | 2,494,464 | ||
| 53 | Mar 28, 2026 16:25 | 4,356 | 31,100,932 | 12,944,000 | 995,000 | 2,281,472 | ||
| 54 | Mar 28, 2026 16:27 | 4,356 | 30,353,852 | 12,945,000 | 995,000 | 2,498,560 | ||
| 55 | Mar 28, 2026 16:25 | 4,357 | 34,415,981 | 12,947,000 | 995,000 | 2,281,472 | ||
| 56 | Mar 28, 2026 16:28 | 4,358 | 29,939,849 | 12,949,000 | 996,000 | 2,281,472 | ||
| 57 | Mar 28, 2026 16:27 | 4,358 | 31,282,797 | 11,952,000 | 1,992,000 | 2,498,560 | ||
| 58 | Mar 28, 2026 16:28 | 4,358 | 28,811,589 | 12,948,000 | 996,000 | 2,539,520 | ||
| 59 | Mar 28, 2026 16:28 | 4,359 | 36,881,041 | 12,952,000 | 996,000 | 2,281,472 | ||
| 60 | Mar 28, 2026 16:27 | 4,359 | 29,953,523 | 12,953,000 | 996,000 | 2,490,368 | ||
| 61 | Mar 28, 2026 16:28 | 4,359 | 33,715,516 | 12,952,000 | 996,000 | 2,498,560 | ||
| 62 | Mar 28, 2026 16:26 | 4,360 | 38,378,969 | 12,957,000 | 996,000 | 2,486,272 | ||
| 63 | Mar 28, 2026 16:26 | 4,361 | 31,741,235 | 12,960,000 | 996,000 | 2,498,560 | ||
| 64 | Mar 28, 2026 16:26 | 4,361 | 29,800,470 | 12,958,000 | 996,000 | 2,281,472 | ||
| 65 | Mar 28, 2026 16:26 | 4,361 | 29,681,291 | 11,963,000 | 1,993,000 | 2,486,272 | ||
| 66 | Mar 28, 2026 16:24 | 4,363 | 30,477,047 | 11,968,000 | 1,994,000 | 2,502,656 | ||
| 67 | Mar 28, 2026 16:25 | 4,364 | 31,691,245 | 12,968,000 | 997,000 | 2,494,464 | ||
| 68 | Mar 28, 2026 16:27 | 4,365 | 27,490,667 | 12,970,000 | 997,000 | 2,281,472 | ||
| 69 | Mar 28, 2026 16:27 | 4,365 | 34,498,865 | 12,972,000 | 997,000 | 2,281,472 | ||
| 70 | Mar 28, 2026 16:24 | 4,366 | 32,466,392 | 11,976,000 | 1,996,000 | 2,281,472 | ||
| 71 | Mar 28, 2026 16:25 | 4,366 | 28,421,795 | 11,976,000 | 1,996,000 | 2,498,560 | ||
| 72 | Mar 28, 2026 16:27 | 4,368 | 30,657,945 | 12,979,000 | 998,000 | 2,490,368 | ||
| 73 | Mar 28, 2026 16:29 | 4,369 | 30,617,559 | 12,982,000 | 998,000 | 2,281,472 | ||
| 74 | Mar 28, 2026 16:25 | 4,369 | 29,434,777 | 12,984,000 | 998,000 | 2,502,656 | ||
| 75 | Mar 28, 2026 16:25 | 4,370 | 31,899,108 | 12,986,000 | 998,000 | 2,490,368 | ||
| 76 | Mar 28, 2026 16:25 | 4,370 | 27,798,441 | 11,986,000 | 1,997,000 | 2,281,472 | ||
| 77 | Mar 28, 2026 16:26 | 4,371 | 35,379,592 | 12,987,000 | 999,000 | 2,281,472 | ||
| 78 | Mar 28, 2026 16:28 | 4,372 | 34,007,816 | 12,991,000 | 999,000 | 2,494,464 | ||
| 79 | Mar 28, 2026 16:28 | 4,373 | 34,679,940 | 11,994,000 | 1,999,000 | 2,281,472 | ||
| 80 | Mar 28, 2026 16:27 | 4,373 | 26,005,753 | 12,994,000 | 999,000 | 2,490,368 | ||
| 81 | Mar 28, 2026 16:25 | 4,374 | 38,553,646 | 12,999,000 | 999,000 | 2,494,464 | ||
| 82 | Mar 28, 2026 16:26 | 4,376 | 39,871,787 | 12,003,000 | 2,000,000 | 2,486,272 | ||
| 83 | Mar 28, 2026 16:26 | 4,376 | 38,470,825 | 12,003,000 | 2,000,000 | 2,482,176 | ||
| 84 | Mar 28, 2026 16:25 | 4,377 | 36,800,057 | 12,006,000 | 2,001,000 | 2,498,560 | ||
| 85 | Mar 28, 2026 16:25 | 4,378 | 31,209,767 | 12,008,000 | 2,001,000 | 2,281,472 | ||
| 86 | Mar 28, 2026 16:28 | 4,380 | 37,539,368 | 12,013,000 | 2,002,000 | 2,281,472 | ||
| 87 | Mar 28, 2026 16:27 | 4,380 | 33,463,927 | 12,013,000 | 2,002,000 | 2,494,464 | ||
| 88 | Mar 28, 2026 16:26 | 4,382 | 31,321,061 | 12,020,000 | 2,003,000 | 2,281,472 | ||
| 89 | Mar 28, 2026 16:27 | 4,385 | 29,139,057 | 13,030,000 | 1,002,000 | 2,281,472 | ||
| 90 | Mar 28, 2026 16:26 | 4,398 | 32,017,632 | 12,063,000 | 2,010,000 | 2,494,464 |