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 16:21 | 4,328 | 29,324,356 | 12,862,000 | 989,000 | 2,494,464 | ||
| 2 | Mar 28, 2026 16:20 | 4,332 | 29,168,686 | 12,872,000 | 990,000 | 2,281,472 | ||
| 3 | Mar 28, 2026 16:19 | 4,334 | 33,237,813 | 13,868,000 | 0 | 2,498,560 | ||
| 4 | Mar 28, 2026 16:18 | 4,334 | 28,020,480 | 12,878,000 | 990,000 | 2,502,656 | ||
| 5 | Mar 28, 2026 16:19 | 4,335 | 28,815,778 | 12,882,000 | 990,000 | 2,498,560 | ||
| 6 | Mar 28, 2026 16:18 | 4,336 | 29,728,868 | 12,885,000 | 991,000 | 2,494,464 | ||
| 7 | Mar 28, 2026 16:18 | 4,336 | 25,705,694 | 12,885,000 | 991,000 | 2,281,472 | ||
| 8 | Mar 28, 2026 16:20 | 4,336 | 35,402,791 | 12,885,000 | 991,000 | 2,482,176 | ||
| 9 | Mar 28, 2026 16:21 | 4,336 | 42,474,077 | 12,883,000 | 991,000 | 2,494,464 | ||
| 10 | Mar 28, 2026 16:21 | 4,336 | 37,829,246 | 12,884,000 | 991,000 | 2,490,368 | ||
| 11 | Mar 28, 2026 16:22 | 4,336 | 30,448,692 | 11,894,000 | 1,982,000 | 2,498,560 | ||
| 12 | Mar 28, 2026 16:21 | 4,337 | 31,904,579 | 13,879,000 | 0 | 2,281,472 | ||
| 13 | Mar 28, 2026 16:21 | 4,338 | 42,809,826 | 13,881,000 | 0 | 2,281,472 | ||
| 14 | Mar 28, 2026 16:20 | 4,338 | 34,781,410 | 12,891,000 | 991,000 | 2,490,368 | ||
| 15 | Mar 28, 2026 16:19 | 4,338 | 27,571,690 | 12,891,000 | 991,000 | 2,498,560 | ||
| 16 | Mar 28, 2026 16:22 | 4,338 | 33,715,150 | 12,892,000 | 991,000 | 2,281,472 | ||
| 17 | Mar 28, 2026 16:19 | 4,338 | 33,416,233 | 13,883,000 | 0 | 2,498,560 | ||
| 18 | Mar 28, 2026 16:20 | 4,338 | 31,795,555 | 12,891,000 | 991,000 | 2,490,368 | ||
| 19 | Mar 28, 2026 16:18 | 4,339 | 27,830,161 | 13,884,000 | 0 | 2,498,560 | ||
| 20 | Mar 28, 2026 16:21 | 4,339 | 40,902,641 | 12,895,000 | 991,000 | 2,490,368 | ||
| 21 | Mar 28, 2026 16:19 | 4,339 | 39,979,873 | 12,893,000 | 991,000 | 2,498,560 | ||
| 22 | Mar 28, 2026 16:21 | 4,341 | 41,386,165 | 12,900,000 | 992,000 | 2,490,368 | ||
| 23 | Mar 28, 2026 16:20 | 4,341 | 37,037,791 | 11,907,000 | 1,984,000 | 2,281,472 | ||
| 24 | Mar 28, 2026 16:22 | 4,341 | 32,040,217 | 13,890,000 | 0 | 2,494,464 | ||
| 25 | Mar 28, 2026 16:20 | 4,342 | 29,762,864 | 12,903,000 | 992,000 | 2,494,464 | ||
| 26 | Mar 28, 2026 16:20 | 4,342 | 41,993,781 | 12,902,000 | 992,000 | 2,281,472 | ||
| 27 | Mar 28, 2026 16:19 | 4,342 | 30,785,719 | 12,901,000 | 992,000 | 2,494,464 | ||
| 28 | Mar 28, 2026 16:20 | 4,343 | 29,681,632 | 12,905,000 | 992,000 | 2,498,560 | ||
| 29 | Mar 28, 2026 16:22 | 4,344 | 31,227,416 | 12,909,000 | 993,000 | 2,498,560 | ||
| 30 | Mar 28, 2026 16:22 | 4,344 | 35,146,745 | 12,908,000 | 992,000 | 2,490,368 | ||
| 31 | Mar 28, 2026 16:22 | 4,344 | 28,566,405 | 13,900,000 | 0 | 2,490,368 | ||
| 32 | Mar 28, 2026 16:19 | 4,345 | 27,655,228 | 11,917,000 | 1,986,000 | 2,281,472 | ||
| 33 | Mar 28, 2026 16:21 | 4,345 | 29,175,617 | 13,904,000 | 0 | 2,281,472 | ||
| 34 | Mar 28, 2026 16:20 | 4,345 | 40,099,121 | 12,910,000 | 993,000 | 2,506,752 | ||
| 35 | Mar 28, 2026 16:21 | 4,346 | 38,220,323 | 12,915,000 | 993,000 | 2,506,752 | ||
| 36 | Mar 28, 2026 16:21 | 4,346 | 28,934,238 | 12,915,000 | 993,000 | 2,502,656 | ||
| 37 | Mar 28, 2026 16:18 | 4,347 | 31,599,013 | 13,909,000 | 0 | 2,281,472 | ||
| 38 | Mar 28, 2026 16:20 | 4,347 | 32,698,302 | 12,916,000 | 993,000 | 2,281,472 | ||
| 39 | Mar 28, 2026 16:20 | 4,347 | 29,214,271 | 11,922,000 | 1,987,000 | 2,494,464 | ||
| 40 | Mar 28, 2026 16:18 | 4,348 | 32,332,446 | 12,920,000 | 993,000 | 2,490,368 | ||
| 41 | Mar 28, 2026 16:20 | 4,348 | 30,642,518 | 12,919,000 | 993,000 | 2,490,368 | ||
| 42 | Mar 28, 2026 16:18 | 4,349 | 31,694,638 | 12,924,000 | 994,000 | 2,490,368 | ||
| 43 | Mar 28, 2026 16:18 | 4,349 | 31,230,582 | 13,917,000 | 0 | 2,482,176 | ||
| 44 | Mar 28, 2026 16:21 | 4,350 | 29,720,576 | 12,925,000 | 994,000 | 2,486,272 | ||
| 45 | Mar 28, 2026 16:20 | 4,350 | 28,680,590 | 12,927,000 | 994,000 | 2,494,464 | ||
| 46 | Mar 28, 2026 16:19 | 4,350 | 28,055,099 | 11,932,000 | 1,988,000 | 2,494,464 | ||
| 47 | Mar 28, 2026 16:22 | 4,350 | 27,957,099 | 12,926,000 | 994,000 | 2,281,472 | ||
| 48 | Mar 28, 2026 16:19 | 4,351 | 33,481,035 | 11,934,000 | 1,989,000 | 2,486,272 | ||
| 49 | Mar 28, 2026 16:21 | 4,351 | 33,077,222 | 12,929,000 | 994,000 | 2,498,560 | ||
| 50 | Mar 28, 2026 16:21 | 4,351 | 32,902,795 | 12,930,000 | 994,000 | 2,281,472 | ||
| 51 | Mar 28, 2026 16:22 | 4,352 | 36,065,281 | 12,932,000 | 994,000 | 2,498,560 | ||
| 52 | Mar 28, 2026 16:19 | 4,352 | 31,029,979 | 12,931,000 | 994,000 | 2,498,560 | ||
| 53 | Mar 28, 2026 16:21 | 4,352 | 38,957,276 | 11,938,000 | 1,989,000 | 2,494,464 | ||
| 54 | Mar 28, 2026 16:21 | 4,353 | 29,708,945 | 12,934,000 | 994,000 | 2,494,464 | ||
| 55 | Mar 28, 2026 16:19 | 4,354 | 31,007,265 | 12,937,000 | 995,000 | 2,498,560 | ||
| 56 | Mar 28, 2026 16:18 | 4,354 | 29,503,779 | 13,934,000 | 0 | 2,490,368 | ||
| 57 | Mar 28, 2026 16:22 | 4,356 | 35,393,421 | 12,943,000 | 995,000 | 2,281,472 | ||
| 58 | Mar 28, 2026 16:20 | 4,356 | 29,069,956 | 12,943,000 | 995,000 | 2,502,656 | ||
| 59 | Mar 28, 2026 16:20 | 4,356 | 32,083,020 | 12,945,000 | 995,000 | 2,281,472 | ||
| 60 | Mar 28, 2026 16:20 | 4,358 | 39,317,473 | 13,946,000 | 0 | 2,490,368 | ||
| 61 | Mar 28, 2026 16:19 | 4,358 | 28,829,615 | 11,954,000 | 1,992,000 | 2,498,560 | ||
| 62 | Mar 28, 2026 16:21 | 4,358 | 29,060,532 | 12,950,000 | 996,000 | 2,498,560 | ||
| 63 | Mar 28, 2026 16:22 | 4,358 | 32,753,870 | 12,948,000 | 996,000 | 2,281,472 | ||
| 64 | Mar 28, 2026 16:20 | 4,359 | 37,292,683 | 12,953,000 | 996,000 | 2,498,560 | ||
| 65 | Mar 28, 2026 16:19 | 4,360 | 33,768,743 | 11,958,000 | 1,993,000 | 2,498,560 | ||
| 66 | Mar 28, 2026 16:20 | 4,361 | 32,014,134 | 12,959,000 | 996,000 | 2,281,472 | ||
| 67 | Mar 28, 2026 16:20 | 4,361 | 34,900,237 | 12,960,000 | 996,000 | 2,281,472 | ||
| 68 | Mar 28, 2026 16:21 | 4,362 | 31,683,037 | 12,962,000 | 997,000 | 2,281,472 | ||
| 69 | Mar 28, 2026 16:21 | 4,363 | 34,294,161 | 11,969,000 | 1,994,000 | 2,494,464 | ||
| 70 | Mar 28, 2026 16:18 | 4,363 | 31,241,990 | 11,968,000 | 1,994,000 | 2,498,560 | ||
| 71 | Mar 28, 2026 16:22 | 4,363 | 36,813,863 | 12,964,000 | 997,000 | 2,494,464 | ||
| 72 | Mar 28, 2026 16:19 | 4,363 | 28,954,963 | 12,963,000 | 997,000 | 2,535,424 | ||
| 73 | Mar 28, 2026 16:20 | 4,363 | 26,802,465 | 12,964,000 | 997,000 | 2,498,560 | ||
| 74 | Mar 28, 2026 16:19 | 4,364 | 36,141,558 | 12,967,000 | 997,000 | 2,281,472 | ||
| 75 | Mar 28, 2026 16:20 | 4,365 | 28,333,856 | 12,971,000 | 997,000 | 2,494,464 | ||
| 76 | Mar 28, 2026 16:19 | 4,365 | 30,271,958 | 11,973,000 | 1,995,000 | 2,490,368 | ||
| 77 | Mar 28, 2026 16:18 | 4,366 | 30,331,847 | 11,975,000 | 1,995,000 | 2,498,560 | ||
| 78 | Mar 28, 2026 16:19 | 4,366 | 30,995,746 | 11,975,000 | 1,995,000 | 2,539,520 | ||
| 79 | Mar 28, 2026 16:18 | 4,368 | 31,087,056 | 12,980,000 | 998,000 | 2,498,560 | ||
| 80 | Mar 28, 2026 16:21 | 4,368 | 27,554,428 | 12,978,000 | 998,000 | 2,281,472 | ||
| 81 | Mar 28, 2026 16:18 | 4,368 | 30,151,071 | 12,980,000 | 998,000 | 2,281,472 | ||
| 82 | Mar 28, 2026 16:18 | 4,368 | 27,881,265 | 11,982,000 | 1,997,000 | 2,498,560 | ||
| 83 | Mar 28, 2026 16:19 | 4,369 | 30,169,223 | 12,984,000 | 998,000 | 2,281,472 | ||
| 84 | Mar 28, 2026 16:21 | 4,372 | 26,815,212 | 12,991,000 | 999,000 | 2,498,560 | ||
| 85 | Mar 28, 2026 16:18 | 4,373 | 34,594,883 | 12,993,000 | 999,000 | 2,502,656 | ||
| 86 | Mar 28, 2026 16:21 | 4,378 | 27,198,553 | 12,010,000 | 2,001,000 | 2,281,472 | ||
| 87 | Mar 28, 2026 16:22 | 4,378 | 34,007,181 | 13,008,000 | 1,000,000 | 2,535,424 | ||
| 88 | Mar 28, 2026 16:19 | 4,382 | 37,181,580 | 13,021,000 | 1,001,000 | 2,498,560 | ||
| 89 | Mar 28, 2026 16:19 | 4,405 | 39,238,988 | 12,082,000 | 2,013,000 | 2,281,472 | ||
| 90 | Mar 28, 2026 16:19 | 4,416 | 38,082,273 | 13,121,000 | 1,009,000 | 2,281,472 |