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 12:43 | 4,321 | 34,606,677 | 12,839,000 | 987,000 | 2,494,464 | ||
| 2 | Mar 28, 2026 12:35 | 4,330 | 27,464,387 | 12,868,000 | 989,000 | 2,498,560 | ||
| 3 | Mar 28, 2026 12:41 | 4,333 | 32,651,155 | 12,876,000 | 990,000 | 2,281,472 | ||
| 4 | Mar 28, 2026 12:42 | 4,334 | 40,060,466 | 13,869,000 | 0 | 2,281,472 | ||
| 5 | Mar 28, 2026 12:44 | 4,334 | 31,013,867 | 13,868,000 | 0 | 2,539,520 | ||
| 6 | Mar 28, 2026 12:42 | 4,336 | 29,785,538 | 12,883,000 | 991,000 | 2,494,464 | ||
| 7 | Mar 28, 2026 12:42 | 4,337 | 34,131,417 | 12,886,000 | 991,000 | 2,502,656 | ||
| 8 | Mar 28, 2026 12:41 | 4,338 | 41,155,885 | 12,892,000 | 991,000 | 2,498,560 | ||
| 9 | Mar 28, 2026 12:41 | 4,338 | 39,613,320 | 12,892,000 | 991,000 | 2,490,368 | ||
| 10 | Mar 28, 2026 12:42 | 4,339 | 30,575,849 | 12,895,000 | 991,000 | 2,539,520 | ||
| 11 | Mar 28, 2026 12:43 | 4,339 | 29,645,293 | 12,894,000 | 991,000 | 2,494,464 | ||
| 12 | Mar 28, 2026 12:43 | 4,339 | 28,861,238 | 12,894,000 | 991,000 | 2,498,560 | ||
| 13 | Mar 28, 2026 12:42 | 4,339 | 28,094,451 | 12,895,000 | 991,000 | 2,494,464 | ||
| 14 | Mar 28, 2026 12:41 | 4,340 | 47,881,365 | 12,896,000 | 992,000 | 2,490,368 | ||
| 15 | Mar 28, 2026 12:43 | 4,341 | 30,647,851 | 12,898,000 | 992,000 | 2,281,472 | ||
| 16 | Mar 28, 2026 12:44 | 4,341 | 29,275,727 | 12,898,000 | 992,000 | 2,490,368 | ||
| 17 | Mar 28, 2026 12:42 | 4,341 | 33,162,334 | 12,899,000 | 992,000 | 2,494,464 | ||
| 18 | Mar 28, 2026 12:43 | 4,342 | 26,457,442 | 12,902,000 | 992,000 | 2,486,272 | ||
| 19 | Mar 28, 2026 12:43 | 4,342 | 24,735,773 | 12,903,000 | 992,000 | 2,494,464 | ||
| 20 | Mar 28, 2026 12:41 | 4,342 | 36,178,281 | 12,901,000 | 992,000 | 2,502,656 | ||
| 21 | Mar 28, 2026 12:44 | 4,343 | 32,187,114 | 13,897,000 | 0 | 2,502,656 | ||
| 22 | Mar 28, 2026 12:44 | 4,343 | 31,867,431 | 12,905,000 | 992,000 | 2,494,464 | ||
| 23 | Mar 28, 2026 12:44 | 4,343 | 31,542,156 | 13,898,000 | 0 | 2,498,560 | ||
| 24 | Mar 28, 2026 12:44 | 4,344 | 34,479,615 | 13,901,000 | 0 | 2,281,472 | ||
| 25 | Mar 28, 2026 12:44 | 4,345 | 34,805,354 | 13,904,000 | 0 | 2,498,560 | ||
| 26 | Mar 28, 2026 12:44 | 4,345 | 42,338,774 | 12,910,000 | 993,000 | 2,494,464 | ||
| 27 | Mar 28, 2026 12:42 | 4,345 | 28,684,176 | 12,912,000 | 993,000 | 2,281,472 | ||
| 28 | Mar 28, 2026 12:44 | 4,345 | 33,346,314 | 12,911,000 | 993,000 | 2,494,464 | ||
| 29 | Mar 28, 2026 12:44 | 4,346 | 39,194,240 | 12,914,000 | 993,000 | 2,494,464 | ||
| 30 | Mar 28, 2026 12:43 | 4,346 | 29,797,547 | 11,921,000 | 1,986,000 | 2,482,176 | ||
| 31 | Mar 28, 2026 12:44 | 4,348 | 26,182,236 | 13,913,000 | 0 | 2,498,560 | ||
| 32 | Mar 28, 2026 12:42 | 4,348 | 29,378,454 | 12,919,000 | 993,000 | 2,494,464 | ||
| 33 | Mar 28, 2026 12:41 | 4,348 | 34,147,054 | 12,919,000 | 993,000 | 2,502,656 | ||
| 34 | Mar 28, 2026 12:43 | 4,349 | 40,400,355 | 12,922,000 | 994,000 | 2,281,472 | ||
| 35 | Mar 28, 2026 12:42 | 4,350 | 39,363,490 | 12,926,000 | 994,000 | 2,498,560 | ||
| 36 | Mar 28, 2026 12:41 | 4,350 | 33,014,015 | 12,926,000 | 994,000 | 2,281,472 | ||
| 37 | Mar 28, 2026 12:44 | 4,351 | 29,460,830 | 12,928,000 | 994,000 | 2,498,560 | ||
| 38 | Mar 28, 2026 12:43 | 4,351 | 40,126,003 | 13,924,000 | 0 | 2,498,560 | ||
| 39 | Mar 28, 2026 12:43 | 4,352 | 34,012,261 | 12,933,000 | 994,000 | 2,281,472 | ||
| 40 | Mar 28, 2026 12:35 | 4,353 | 34,583,672 | 12,934,000 | 994,000 | 2,281,472 | ||
| 41 | Mar 28, 2026 12:41 | 4,354 | 36,786,531 | 12,938,000 | 995,000 | 2,506,752 | ||
| 42 | Mar 28, 2026 12:35 | 4,354 | 30,824,797 | 12,939,000 | 995,000 | 2,281,472 | ||
| 43 | Mar 28, 2026 12:42 | 4,355 | 25,396,808 | 11,946,000 | 1,991,000 | 2,281,472 | ||
| 44 | Mar 28, 2026 12:42 | 4,356 | 35,821,800 | 12,943,000 | 995,000 | 2,494,464 | ||
| 45 | Mar 28, 2026 12:43 | 4,357 | 34,467,829 | 12,947,000 | 995,000 | 2,482,176 | ||
| 46 | Mar 28, 2026 12:43 | 4,358 | 28,951,631 | 12,948,000 | 996,000 | 2,490,368 | ||
| 47 | Mar 28, 2026 12:44 | 4,358 | 28,595,484 | 12,951,000 | 996,000 | 2,281,472 | ||
| 48 | Mar 28, 2026 12:43 | 4,358 | 29,757,003 | 12,951,000 | 996,000 | 2,482,176 | ||
| 49 | Mar 28, 2026 12:43 | 4,359 | 33,980,187 | 12,952,000 | 996,000 | 2,490,368 | ||
| 50 | Mar 28, 2026 12:43 | 4,361 | 30,083,998 | 12,960,000 | 996,000 | 2,490,368 | ||
| 51 | Mar 28, 2026 12:42 | 4,365 | 35,095,398 | 12,972,000 | 997,000 | 2,486,272 | ||
| 52 | Mar 28, 2026 12:41 | 4,365 | 32,411,646 | 12,971,000 | 997,000 | 2,281,472 | ||
| 53 | Mar 28, 2026 12:42 | 4,366 | 29,571,081 | 11,975,000 | 1,995,000 | 2,494,464 | ||
| 54 | Mar 28, 2026 12:44 | 4,367 | 26,275,344 | 11,979,000 | 1,996,000 | 2,498,560 | ||
| 55 | Mar 28, 2026 12:42 | 4,367 | 42,816,171 | 12,976,000 | 998,000 | 2,490,368 | ||
| 56 | Mar 28, 2026 12:44 | 4,368 | 34,137,339 | 12,981,000 | 998,000 | 2,498,560 | ||
| 57 | Mar 28, 2026 12:44 | 4,369 | 31,855,184 | 12,982,000 | 998,000 | 2,281,472 | ||
| 58 | Mar 28, 2026 12:44 | 4,374 | 45,538,984 | 13,997,000 | 0 | 2,494,464 | ||
| 59 | Mar 28, 2026 12:42 | 4,378 | 33,144,324 | 13,009,000 | 1,000,000 | 2,281,472 | ||
| 60 | Mar 28, 2026 12:42 | 4,382 | 35,875,492 | 12,018,000 | 2,003,000 | 2,498,560 | ||
| 61 | Mar 28, 2026 12:42 | 4,398 | 42,343,759 | 13,068,000 | 1,005,000 | 2,281,472 | ||
| 62 | Mar 28, 2026 12:42 | 4,399 | 29,263,587 | 13,073,000 | 1,005,000 | 2,281,472 | ||
| 63 | Mar 28, 2026 12:44 | 4,407 | 44,737,793 | 13,096,000 | 1,007,000 | 2,498,560 |