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 16:14 | 4,325 | 28,170,676 | 12,852,000 | 988,000 | 2,281,472 | ||
| 2 | Mar 28, 2026 16:13 | 4,331 | 29,233,879 | 13,860,000 | 0 | 2,486,272 | ||
| 3 | Mar 28, 2026 16:15 | 4,333 | 35,527,362 | 12,875,000 | 990,000 | 2,490,368 | ||
| 4 | Mar 28, 2026 16:14 | 4,334 | 31,345,557 | 12,878,000 | 990,000 | 2,494,464 | ||
| 5 | Mar 28, 2026 16:14 | 4,334 | 32,607,491 | 12,878,000 | 990,000 | 2,490,368 | ||
| 6 | Mar 28, 2026 16:14 | 4,334 | 30,872,672 | 12,879,000 | 990,000 | 2,281,472 | ||
| 7 | Mar 28, 2026 16:12 | 4,335 | 37,929,020 | 11,890,000 | 1,981,000 | 2,486,272 | ||
| 8 | Mar 28, 2026 16:12 | 4,335 | 38,848,022 | 13,871,000 | 0 | 2,494,464 | ||
| 9 | Mar 28, 2026 16:14 | 4,336 | 29,620,492 | 13,876,000 | 0 | 2,498,560 | ||
| 10 | Mar 28, 2026 16:15 | 4,337 | 23,937,838 | 12,888,000 | 991,000 | 2,494,464 | ||
| 11 | Mar 28, 2026 16:13 | 4,337 | 40,240,707 | 12,888,000 | 991,000 | 2,277,376 | ||
| 12 | Mar 28, 2026 16:13 | 4,338 | 38,726,220 | 12,890,000 | 991,000 | 2,502,656 | ||
| 13 | Mar 28, 2026 16:15 | 4,338 | 32,221,767 | 12,891,000 | 991,000 | 2,490,368 | ||
| 14 | Mar 28, 2026 16:15 | 4,339 | 27,367,593 | 12,893,000 | 991,000 | 2,498,560 | ||
| 15 | Mar 28, 2026 16:13 | 4,340 | 34,972,878 | 12,896,000 | 992,000 | 2,281,472 | ||
| 16 | Mar 28, 2026 16:15 | 4,340 | 28,503,580 | 12,897,000 | 992,000 | 2,498,560 | ||
| 17 | Mar 28, 2026 16:14 | 4,340 | 36,179,114 | 12,897,000 | 992,000 | 2,494,464 | ||
| 18 | Mar 28, 2026 16:15 | 4,340 | 34,777,392 | 12,896,000 | 992,000 | 2,281,472 | ||
| 19 | Mar 28, 2026 16:13 | 4,340 | 42,265,318 | 12,896,000 | 992,000 | 2,281,472 | ||
| 20 | Mar 28, 2026 16:14 | 4,341 | 28,753,371 | 12,900,000 | 992,000 | 2,482,176 | ||
| 21 | Mar 28, 2026 16:15 | 4,341 | 31,274,797 | 12,822,000 | 1,068,000 | 2,502,656 | ||
| 22 | Mar 28, 2026 16:13 | 4,342 | 39,557,205 | 12,901,000 | 992,000 | 2,498,560 | ||
| 23 | Mar 28, 2026 16:11 | 4,342 | 29,051,879 | 12,901,000 | 992,000 | 2,494,464 | ||
| 24 | Mar 28, 2026 16:13 | 4,343 | 29,096,440 | 12,905,000 | 992,000 | 2,502,656 | ||
| 25 | Mar 28, 2026 16:13 | 4,343 | 27,469,633 | 12,905,000 | 992,000 | 2,281,472 | ||
| 26 | Mar 28, 2026 16:15 | 4,343 | 30,138,525 | 12,904,000 | 992,000 | 2,281,472 | ||
| 27 | Mar 28, 2026 16:12 | 4,343 | 30,512,575 | 13,899,000 | 0 | 2,490,368 | ||
| 28 | Mar 28, 2026 16:12 | 4,343 | 27,339,361 | 12,905,000 | 992,000 | 2,494,464 | ||
| 29 | Mar 28, 2026 16:13 | 4,344 | 41,509,880 | 12,908,000 | 992,000 | 2,494,464 | ||
| 30 | Mar 28, 2026 16:14 | 4,344 | 37,371,154 | 12,908,000 | 992,000 | 2,281,472 | ||
| 31 | Mar 28, 2026 16:15 | 4,345 | 28,638,793 | 13,903,000 | 0 | 2,281,472 | ||
| 32 | Mar 28, 2026 16:12 | 4,345 | 30,619,565 | 12,910,000 | 993,000 | 2,502,656 | ||
| 33 | Mar 28, 2026 16:12 | 4,345 | 29,955,485 | 12,910,000 | 993,000 | 2,281,472 | ||
| 34 | Mar 28, 2026 16:13 | 4,347 | 27,173,458 | 12,917,000 | 993,000 | 2,281,472 | ||
| 35 | Mar 28, 2026 16:12 | 4,348 | 29,727,502 | 12,921,000 | 993,000 | 2,490,368 | ||
| 36 | Mar 28, 2026 16:12 | 4,348 | 38,399,701 | 12,919,000 | 993,000 | 2,498,560 | ||
| 37 | Mar 28, 2026 16:13 | 4,348 | 32,539,537 | 12,920,000 | 993,000 | 2,281,472 | ||
| 38 | Mar 28, 2026 16:14 | 4,349 | 32,960,208 | 12,922,000 | 994,000 | 2,281,472 | ||
| 39 | Mar 28, 2026 16:13 | 4,349 | 35,865,927 | 13,916,000 | 0 | 2,281,472 | ||
| 40 | Mar 28, 2026 16:13 | 4,350 | 31,341,129 | 13,919,000 | 0 | 2,490,368 | ||
| 41 | Mar 28, 2026 16:14 | 4,352 | 31,508,665 | 12,932,000 | 994,000 | 2,490,368 | ||
| 42 | Mar 28, 2026 16:14 | 4,352 | 39,111,162 | 12,932,000 | 994,000 | 2,281,472 | ||
| 43 | Mar 28, 2026 16:14 | 4,352 | 31,920,278 | 13,926,000 | 0 | 2,498,560 | ||
| 44 | Mar 28, 2026 16:14 | 4,353 | 32,929,238 | 12,936,000 | 995,000 | 2,281,472 | ||
| 45 | Mar 28, 2026 16:15 | 4,353 | 34,829,891 | 13,931,000 | 0 | 2,498,560 | ||
| 46 | Mar 28, 2026 16:15 | 4,354 | 39,290,264 | 13,933,000 | 0 | 2,494,464 | ||
| 47 | Mar 28, 2026 16:11 | 4,354 | 30,652,473 | 12,937,000 | 995,000 | 2,281,472 | ||
| 48 | Mar 28, 2026 16:13 | 4,354 | 31,456,719 | 12,937,000 | 995,000 | 2,498,560 | ||
| 49 | Mar 28, 2026 16:12 | 4,355 | 29,566,694 | 12,942,000 | 995,000 | 2,281,472 | ||
| 50 | Mar 28, 2026 16:15 | 4,356 | 30,000,482 | 12,945,000 | 995,000 | 2,498,560 | ||
| 51 | Mar 28, 2026 16:13 | 4,357 | 40,207,960 | 12,947,000 | 995,000 | 2,498,560 | ||
| 52 | Mar 28, 2026 16:12 | 4,358 | 40,946,516 | 12,951,000 | 996,000 | 2,494,464 | ||
| 53 | Mar 28, 2026 16:12 | 4,358 | 32,699,822 | 11,955,000 | 1,992,000 | 2,494,464 | ||
| 54 | Mar 28, 2026 16:12 | 4,358 | 29,416,951 | 12,949,000 | 996,000 | 2,498,560 | ||
| 55 | Mar 28, 2026 16:13 | 4,358 | 33,205,211 | 12,949,000 | 996,000 | 2,281,472 | ||
| 56 | Mar 28, 2026 16:14 | 4,359 | 25,951,572 | 12,953,000 | 996,000 | 2,281,472 | ||
| 57 | Mar 28, 2026 16:14 | 4,359 | 29,805,665 | 12,952,000 | 996,000 | 2,281,472 | ||
| 58 | Mar 28, 2026 16:13 | 4,360 | 31,114,608 | 12,956,000 | 996,000 | 2,498,560 | ||
| 59 | Mar 28, 2026 16:12 | 4,360 | 35,110,888 | 12,957,000 | 996,000 | 2,498,560 | ||
| 60 | Mar 28, 2026 16:13 | 4,360 | 30,177,059 | 12,956,000 | 996,000 | 2,539,520 | ||
| 61 | Mar 28, 2026 16:12 | 4,360 | 30,045,956 | 11,959,000 | 1,993,000 | 2,498,560 | ||
| 62 | Mar 28, 2026 16:12 | 4,361 | 26,666,026 | 12,959,000 | 996,000 | 2,281,472 | ||
| 63 | Mar 28, 2026 16:14 | 4,362 | 29,553,093 | 11,965,000 | 1,994,000 | 2,494,464 | ||
| 64 | Mar 28, 2026 16:13 | 4,362 | 39,678,631 | 12,961,000 | 997,000 | 2,281,472 | ||
| 65 | Mar 28, 2026 16:14 | 4,363 | 31,551,040 | 12,966,000 | 997,000 | 2,498,560 | ||
| 66 | Mar 28, 2026 16:11 | 4,363 | 27,293,821 | 12,963,000 | 997,000 | 2,281,472 | ||
| 67 | Mar 28, 2026 16:12 | 4,363 | 38,319,545 | 11,967,000 | 1,994,000 | 2,494,464 | ||
| 68 | Mar 28, 2026 16:12 | 4,363 | 28,368,050 | 11,967,000 | 1,994,000 | 2,490,368 | ||
| 69 | Mar 28, 2026 16:14 | 4,364 | 31,341,413 | 12,969,000 | 997,000 | 2,494,464 | ||
| 70 | Mar 28, 2026 16:13 | 4,365 | 29,704,658 | 12,971,000 | 997,000 | 2,281,472 | ||
| 71 | Mar 28, 2026 16:15 | 4,365 | 28,063,205 | 12,972,000 | 997,000 | 2,281,472 | ||
| 72 | Mar 28, 2026 16:15 | 4,366 | 33,226,131 | 12,974,000 | 998,000 | 2,281,472 | ||
| 73 | Mar 28, 2026 16:15 | 4,369 | 29,979,298 | 12,983,000 | 998,000 | 2,281,472 | ||
| 74 | Mar 28, 2026 16:12 | 4,369 | 30,471,058 | 12,983,000 | 998,000 | 2,281,472 | ||
| 75 | Mar 28, 2026 16:12 | 4,369 | 38,328,436 | 12,984,000 | 998,000 | 2,281,472 | ||
| 76 | Mar 28, 2026 16:15 | 4,370 | 26,100,074 | 12,985,000 | 998,000 | 2,281,472 | ||
| 77 | Mar 28, 2026 16:12 | 4,370 | 33,961,432 | 12,986,000 | 998,000 | 2,490,368 | ||
| 78 | Mar 28, 2026 16:12 | 4,372 | 29,571,905 | 12,991,000 | 999,000 | 2,277,376 | ||
| 79 | Mar 28, 2026 16:15 | 4,373 | 33,703,546 | 12,995,000 | 999,000 | 2,535,424 | ||
| 80 | Mar 28, 2026 16:15 | 4,375 | 32,874,101 | 13,000,000 | 1,000,000 | 2,494,464 | ||
| 81 | Mar 28, 2026 16:12 | 4,375 | 32,474,086 | 13,000,000 | 1,000,000 | 2,490,368 | ||
| 82 | Mar 28, 2026 16:15 | 4,377 | 33,022,010 | 13,006,000 | 1,000,000 | 2,498,560 | ||
| 83 | Mar 28, 2026 16:14 | 4,380 | 37,574,439 | 12,014,000 | 2,002,000 | 2,281,472 | ||
| 84 | Mar 28, 2026 16:13 | 4,380 | 26,713,862 | 13,016,000 | 1,001,000 | 2,498,560 | ||
| 85 | Mar 28, 2026 16:14 | 4,382 | 31,234,086 | 13,022,000 | 1,001,000 | 2,281,472 | ||
| 86 | Mar 28, 2026 16:12 | 4,384 | 28,588,455 | 13,027,000 | 1,002,000 | 2,502,656 | ||
| 87 | Mar 28, 2026 16:12 | 4,388 | 35,720,004 | 13,040,000 | 1,003,000 | 2,494,464 | ||
| 88 | Mar 28, 2026 16:14 | 4,398 | 34,082,603 | 12,063,000 | 2,010,000 | 2,281,472 | ||
| 89 | Mar 28, 2026 16:15 | 4,399 | 38,292,405 | 13,073,000 | 1,005,000 | 2,482,176 | ||
| 90 | Mar 28, 2026 16:15 | 4,413 | 31,155,268 | 12,103,000 | 2,017,000 | 2,502,656 |