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 21:24 | 4,331 | 38,432,696 | 12,869,000 | 989,000 | 2,498,560 | ||
| 2 | Mar 28, 2026 21:25 | 4,334 | 36,571,047 | 12,879,000 | 990,000 | 2,490,368 | ||
| 3 | Mar 28, 2026 21:26 | 4,335 | 32,154,077 | 12,881,000 | 990,000 | 2,490,368 | ||
| 4 | Mar 28, 2026 21:27 | 4,337 | 29,183,599 | 12,887,000 | 991,000 | 2,494,464 | ||
| 5 | Mar 28, 2026 21:26 | 4,337 | 29,157,727 | 12,887,000 | 991,000 | 2,498,560 | ||
| 6 | Mar 28, 2026 21:27 | 4,338 | 37,719,134 | 12,892,000 | 991,000 | 2,281,472 | ||
| 7 | Mar 28, 2026 21:23 | 4,338 | 32,446,183 | 12,890,000 | 991,000 | 2,490,368 | ||
| 8 | Mar 28, 2026 21:26 | 4,338 | 33,358,177 | 12,889,000 | 991,000 | 2,539,520 | ||
| 9 | Mar 28, 2026 21:26 | 4,338 | 32,686,142 | 12,889,000 | 991,000 | 2,281,472 | ||
| 10 | Mar 28, 2026 21:24 | 4,339 | 33,698,113 | 11,901,000 | 1,983,000 | 2,502,656 | ||
| 11 | Mar 28, 2026 21:27 | 4,339 | 39,665,939 | 12,895,000 | 991,000 | 2,486,272 | ||
| 12 | Mar 28, 2026 21:26 | 4,340 | 31,144,605 | 12,897,000 | 992,000 | 2,498,560 | ||
| 13 | Mar 28, 2026 21:25 | 4,340 | 29,836,900 | 12,897,000 | 992,000 | 2,281,472 | ||
| 14 | Mar 28, 2026 21:25 | 4,341 | 31,628,503 | 12,900,000 | 992,000 | 2,498,560 | ||
| 15 | Mar 28, 2026 21:26 | 4,341 | 34,403,890 | 12,898,000 | 992,000 | 2,490,368 | ||
| 16 | Mar 28, 2026 21:25 | 4,341 | 30,093,720 | 12,898,000 | 992,000 | 2,502,656 | ||
| 17 | Mar 28, 2026 21:23 | 4,342 | 43,325,161 | 12,903,000 | 992,000 | 2,494,464 | ||
| 18 | Mar 28, 2026 21:25 | 4,342 | 27,759,557 | 13,895,000 | 0 | 2,490,368 | ||
| 19 | Mar 28, 2026 21:23 | 4,342 | 31,638,095 | 12,903,000 | 992,000 | 2,498,560 | ||
| 20 | Mar 28, 2026 21:26 | 4,343 | 29,277,700 | 12,906,000 | 992,000 | 2,539,520 | ||
| 21 | Mar 28, 2026 21:26 | 4,343 | 29,678,822 | 12,904,000 | 992,000 | 2,281,472 | ||
| 22 | Mar 28, 2026 21:25 | 4,343 | 29,366,218 | 12,904,000 | 992,000 | 2,502,656 | ||
| 23 | Mar 28, 2026 21:24 | 4,343 | 40,219,056 | 12,907,000 | 992,000 | 2,494,464 | ||
| 24 | Mar 28, 2026 21:23 | 4,343 | 25,691,615 | 12,904,000 | 992,000 | 2,281,472 | ||
| 25 | Mar 28, 2026 21:24 | 4,343 | 29,046,375 | 12,906,000 | 992,000 | 2,490,368 | ||
| 26 | Mar 28, 2026 21:24 | 4,343 | 32,547,263 | 13,896,000 | 0 | 2,281,472 | ||
| 27 | Mar 28, 2026 21:24 | 4,343 | 29,945,685 | 12,907,000 | 992,000 | 2,498,560 | ||
| 28 | Mar 28, 2026 21:24 | 4,343 | 34,810,624 | 12,905,000 | 992,000 | 2,281,472 | ||
| 29 | Mar 28, 2026 21:26 | 4,344 | 31,998,613 | 12,908,000 | 992,000 | 2,494,464 | ||
| 30 | Mar 28, 2026 21:25 | 4,344 | 30,453,332 | 13,900,000 | 0 | 2,281,472 | ||
| 31 | Mar 28, 2026 21:24 | 4,345 | 29,624,298 | 12,910,000 | 993,000 | 2,502,656 | ||
| 32 | Mar 28, 2026 21:24 | 4,345 | 37,234,866 | 12,910,000 | 993,000 | 2,281,472 | ||
| 33 | Mar 28, 2026 21:27 | 4,345 | 30,059,874 | 12,912,000 | 993,000 | 2,494,464 | ||
| 34 | Mar 28, 2026 21:27 | 4,345 | 32,373,667 | 12,911,000 | 993,000 | 2,498,560 | ||
| 35 | Mar 28, 2026 21:25 | 4,346 | 31,507,840 | 12,915,000 | 993,000 | 2,281,472 | ||
| 36 | Mar 28, 2026 21:24 | 4,346 | 28,173,007 | 12,913,000 | 993,000 | 2,281,472 | ||
| 37 | Mar 28, 2026 21:26 | 4,346 | 27,681,023 | 12,915,000 | 993,000 | 2,490,368 | ||
| 38 | Mar 28, 2026 21:26 | 4,347 | 30,463,767 | 11,923,000 | 1,987,000 | 2,494,464 | ||
| 39 | Mar 28, 2026 21:26 | 4,347 | 43,438,718 | 12,917,000 | 993,000 | 2,494,464 | ||
| 40 | Mar 28, 2026 21:25 | 4,348 | 42,498,931 | 12,921,000 | 993,000 | 2,281,472 | ||
| 41 | Mar 28, 2026 21:24 | 4,349 | 38,610,925 | 12,924,000 | 994,000 | 2,494,464 | ||
| 42 | Mar 28, 2026 21:23 | 4,349 | 32,258,357 | 12,922,000 | 994,000 | 2,281,472 | ||
| 43 | Mar 28, 2026 21:26 | 4,351 | 35,882,626 | 12,930,000 | 994,000 | 2,281,472 | ||
| 44 | Mar 28, 2026 21:25 | 4,351 | 36,348,273 | 12,853,000 | 1,071,000 | 2,494,464 | ||
| 45 | Mar 28, 2026 21:26 | 4,351 | 30,511,845 | 12,928,000 | 994,000 | 2,494,464 | ||
| 46 | Mar 28, 2026 21:23 | 4,351 | 28,329,752 | 12,929,000 | 994,000 | 2,498,560 | ||
| 47 | Mar 28, 2026 21:24 | 4,352 | 36,342,880 | 12,931,000 | 994,000 | 2,502,656 | ||
| 48 | Mar 28, 2026 21:26 | 4,353 | 27,592,715 | 12,860,000 | 1,071,000 | 2,281,472 | ||
| 49 | Mar 28, 2026 21:26 | 4,353 | 36,934,837 | 12,935,000 | 995,000 | 2,494,464 | ||
| 50 | Mar 28, 2026 21:25 | 4,354 | 33,897,106 | 12,939,000 | 995,000 | 2,498,560 | ||
| 51 | Mar 28, 2026 21:24 | 4,356 | 39,074,814 | 12,943,000 | 995,000 | 2,281,472 | ||
| 52 | Mar 28, 2026 21:24 | 4,357 | 27,787,633 | 12,947,000 | 995,000 | 2,494,464 | ||
| 53 | Mar 28, 2026 21:26 | 4,357 | 29,622,536 | 11,951,000 | 1,991,000 | 2,490,368 | ||
| 54 | Mar 28, 2026 21:27 | 4,358 | 30,002,512 | 11,955,000 | 1,992,000 | 2,281,472 | ||
| 55 | Mar 28, 2026 21:25 | 4,358 | 30,686,312 | 13,947,000 | 0 | 2,281,472 | ||
| 56 | Mar 28, 2026 21:26 | 4,359 | 41,315,239 | 12,953,000 | 996,000 | 2,498,560 | ||
| 57 | Mar 28, 2026 21:24 | 4,359 | 25,567,968 | 12,953,000 | 996,000 | 2,281,472 | ||
| 58 | Mar 28, 2026 21:24 | 4,360 | 27,878,574 | 11,958,000 | 1,993,000 | 2,490,368 | ||
| 59 | Mar 28, 2026 21:26 | 4,360 | 38,488,416 | 12,957,000 | 996,000 | 2,281,472 | ||
| 60 | Mar 28, 2026 21:24 | 4,363 | 31,037,292 | 12,965,000 | 997,000 | 2,281,472 | ||
| 61 | Mar 28, 2026 21:26 | 4,367 | 39,551,628 | 12,975,000 | 998,000 | 2,281,472 | ||
| 62 | Mar 28, 2026 21:26 | 4,367 | 35,588,270 | 12,977,000 | 998,000 | 2,490,368 | ||
| 63 | Mar 28, 2026 21:24 | 4,367 | 30,294,150 | 12,976,000 | 998,000 | 2,281,472 | ||
| 64 | Mar 28, 2026 21:25 | 4,367 | 41,880,480 | 11,978,000 | 1,996,000 | 2,490,368 | ||
| 65 | Mar 28, 2026 21:26 | 4,368 | 31,761,144 | 12,981,000 | 998,000 | 2,281,472 | ||
| 66 | Mar 28, 2026 21:25 | 4,368 | 28,261,899 | 12,981,000 | 998,000 | 2,277,376 | ||
| 67 | Mar 28, 2026 21:24 | 4,371 | 36,491,057 | 11,988,000 | 1,998,000 | 2,281,472 | ||
| 68 | Mar 28, 2026 21:25 | 4,372 | 38,399,732 | 11,993,000 | 1,998,000 | 2,281,472 | ||
| 69 | Mar 28, 2026 21:25 | 4,376 | 34,243,111 | 13,002,000 | 1,000,000 | 2,281,472 | ||
| 70 | Mar 28, 2026 21:23 | 4,376 | 27,484,874 | 12,003,000 | 2,000,000 | 2,494,464 | ||
| 71 | Mar 28, 2026 21:23 | 4,377 | 28,101,962 | 13,007,000 | 1,000,000 | 2,535,424 | ||
| 72 | Mar 28, 2026 21:24 | 4,377 | 28,960,388 | 13,007,000 | 1,000,000 | 2,494,464 | ||
| 73 | Mar 28, 2026 21:27 | 4,377 | 38,161,382 | 13,006,000 | 1,000,000 | 2,486,272 | ||
| 74 | Mar 28, 2026 21:25 | 4,378 | 30,936,138 | 13,008,000 | 1,000,000 | 2,281,472 | ||
| 75 | Mar 28, 2026 21:24 | 4,378 | 27,300,790 | 12,009,000 | 2,001,000 | 2,502,656 | ||
| 76 | Mar 28, 2026 21:24 | 4,379 | 37,128,885 | 12,012,000 | 2,002,000 | 2,494,464 | ||
| 77 | Mar 28, 2026 21:26 | 4,380 | 35,538,369 | 13,015,000 | 1,001,000 | 2,281,472 | ||
| 78 | Mar 28, 2026 21:25 | 4,380 | 36,536,597 | 13,015,000 | 1,001,000 | 2,281,472 | ||
| 79 | Mar 28, 2026 21:24 | 4,381 | 27,858,932 | 13,018,000 | 1,001,000 | 2,498,560 | ||
| 80 | Mar 28, 2026 21:26 | 4,381 | 28,209,662 | 13,017,000 | 1,001,000 | 2,494,464 | ||
| 81 | Mar 28, 2026 21:25 | 4,384 | 30,984,245 | 12,025,000 | 2,004,000 | 2,498,560 | ||
| 82 | Mar 28, 2026 21:23 | 4,389 | 30,894,238 | 13,041,000 | 1,003,000 | 2,494,464 | ||
| 83 | Mar 28, 2026 21:25 | 4,390 | 31,384,040 | 12,041,000 | 2,006,000 | 2,281,472 | ||
| 84 | Mar 28, 2026 21:25 | 4,391 | 33,095,692 | 12,043,000 | 2,007,000 | 2,281,472 | ||
| 85 | Mar 28, 2026 21:25 | 4,395 | 35,171,004 | 12,054,000 | 2,009,000 | 2,494,464 | ||
| 86 | Mar 28, 2026 21:24 | 4,395 | 36,033,579 | 12,055,000 | 2,009,000 | 2,281,472 | ||
| 87 | Mar 28, 2026 21:25 | 4,404 | 34,039,087 | 12,081,000 | 2,013,000 | 2,490,368 | ||
| 88 | Mar 28, 2026 21:25 | 4,405 | 29,768,795 | 12,082,000 | 2,013,000 | 2,494,464 | ||
| 89 | Mar 28, 2026 21:27 | 4,512 | 32,777,424 | 13,407,000 | 1,031,000 | 2,502,656 | ||
| 90 | Mar 28, 2026 21:27 | 4,527 | 37,991,529 | 13,453,000 | 1,034,000 | 2,490,368 |