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 14:00 | 4,328 | 30,097,435 | 12,783,000 | 1,065,000 | 2,494,464 | ||
| 2 | Mar 28, 2026 13:59 | 4,330 | 36,560,031 | 12,868,000 | 989,000 | 2,281,472 | ||
| 3 | Mar 28, 2026 14:00 | 4,330 | 31,397,175 | 12,866,000 | 989,000 | 2,486,272 | ||
| 4 | Mar 28, 2026 13:58 | 4,332 | 30,568,587 | 12,871,000 | 990,000 | 2,281,472 | ||
| 5 | Mar 28, 2026 14:02 | 4,334 | 35,896,130 | 12,880,000 | 990,000 | 2,494,464 | ||
| 6 | Mar 28, 2026 13:57 | 4,336 | 31,289,813 | 12,883,000 | 991,000 | 2,494,464 | ||
| 7 | Mar 28, 2026 13:59 | 4,336 | 29,965,558 | 12,884,000 | 991,000 | 2,486,272 | ||
| 8 | Mar 28, 2026 13:59 | 4,336 | 32,633,609 | 12,885,000 | 991,000 | 2,502,656 | ||
| 9 | Mar 28, 2026 14:02 | 4,336 | 26,773,975 | 12,883,000 | 991,000 | 2,498,560 | ||
| 10 | Mar 28, 2026 13:59 | 4,337 | 37,476,401 | 12,888,000 | 991,000 | 2,281,472 | ||
| 11 | Mar 28, 2026 14:01 | 4,337 | 32,265,254 | 12,887,000 | 991,000 | 2,494,464 | ||
| 12 | Mar 28, 2026 14:01 | 4,337 | 29,672,153 | 12,888,000 | 991,000 | 2,498,560 | ||
| 13 | Mar 28, 2026 13:58 | 4,337 | 29,359,491 | 12,888,000 | 991,000 | 2,490,368 | ||
| 14 | Mar 28, 2026 14:02 | 4,338 | 31,213,497 | 12,891,000 | 991,000 | 2,490,368 | ||
| 15 | Mar 28, 2026 13:59 | 4,338 | 31,855,608 | 13,880,000 | 0 | 2,498,560 | ||
| 16 | Mar 28, 2026 14:00 | 4,338 | 27,947,371 | 12,891,000 | 991,000 | 2,281,472 | ||
| 17 | Mar 28, 2026 14:02 | 4,338 | 29,882,447 | 13,882,000 | 0 | 2,490,368 | ||
| 18 | Mar 28, 2026 13:58 | 4,338 | 29,585,128 | 12,892,000 | 991,000 | 2,539,520 | ||
| 19 | Mar 28, 2026 14:00 | 4,339 | 31,625,877 | 12,893,000 | 991,000 | 2,490,368 | ||
| 20 | Mar 28, 2026 14:00 | 4,339 | 33,815,566 | 12,893,000 | 991,000 | 2,281,472 | ||
| 21 | Mar 28, 2026 14:01 | 4,339 | 26,881,540 | 12,895,000 | 991,000 | 2,490,368 | ||
| 22 | Mar 28, 2026 14:01 | 4,341 | 30,989,007 | 11,907,000 | 1,984,000 | 2,494,464 | ||
| 23 | Mar 28, 2026 13:59 | 4,341 | 40,896,164 | 12,898,000 | 992,000 | 2,498,560 | ||
| 24 | Mar 28, 2026 14:02 | 4,341 | 26,842,745 | 12,899,000 | 992,000 | 2,490,368 | ||
| 25 | Mar 28, 2026 14:00 | 4,341 | 40,816,298 | 12,899,000 | 992,000 | 2,502,656 | ||
| 26 | Mar 28, 2026 14:00 | 4,342 | 39,332,443 | 12,903,000 | 992,000 | 2,498,560 | ||
| 27 | Mar 28, 2026 13:59 | 4,342 | 30,037,572 | 12,901,000 | 992,000 | 2,490,368 | ||
| 28 | Mar 28, 2026 14:01 | 4,342 | 35,965,341 | 12,902,000 | 992,000 | 2,281,472 | ||
| 29 | Mar 28, 2026 13:59 | 4,343 | 41,124,541 | 12,907,000 | 992,000 | 2,273,280 | ||
| 30 | Mar 28, 2026 14:01 | 4,343 | 35,343,670 | 12,905,000 | 992,000 | 2,494,464 | ||
| 31 | Mar 28, 2026 13:58 | 4,343 | 39,975,639 | 12,905,000 | 992,000 | 2,281,472 | ||
| 32 | Mar 28, 2026 14:02 | 4,343 | 28,789,301 | 12,907,000 | 992,000 | 2,486,272 | ||
| 33 | Mar 28, 2026 14:00 | 4,344 | 31,024,067 | 12,908,000 | 992,000 | 2,281,472 | ||
| 34 | Mar 28, 2026 13:58 | 4,345 | 29,550,061 | 12,912,000 | 993,000 | 2,494,464 | ||
| 35 | Mar 28, 2026 14:01 | 4,346 | 33,476,071 | 13,908,000 | 0 | 2,506,752 | ||
| 36 | Mar 28, 2026 14:01 | 4,346 | 30,359,364 | 13,907,000 | 0 | 2,281,472 | ||
| 37 | Mar 28, 2026 13:58 | 4,346 | 37,062,627 | 12,913,000 | 993,000 | 2,281,472 | ||
| 38 | Mar 28, 2026 14:02 | 4,346 | 32,784,892 | 12,913,000 | 993,000 | 2,502,656 | ||
| 39 | Mar 28, 2026 14:01 | 4,347 | 29,832,391 | 12,916,000 | 993,000 | 2,281,472 | ||
| 40 | Mar 28, 2026 13:57 | 4,348 | 36,443,783 | 13,912,000 | 0 | 2,494,464 | ||
| 41 | Mar 28, 2026 13:58 | 4,348 | 30,522,452 | 12,920,000 | 993,000 | 2,277,376 | ||
| 42 | Mar 28, 2026 13:58 | 4,349 | 28,530,776 | 12,924,000 | 994,000 | 2,277,376 | ||
| 43 | Mar 28, 2026 14:02 | 4,349 | 33,879,285 | 12,924,000 | 994,000 | 2,281,472 | ||
| 44 | Mar 28, 2026 13:57 | 4,350 | 42,995,850 | 12,925,000 | 994,000 | 2,281,472 | ||
| 45 | Mar 28, 2026 13:59 | 4,350 | 42,726,260 | 12,926,000 | 994,000 | 2,498,560 | ||
| 46 | Mar 28, 2026 13:58 | 4,351 | 33,180,423 | 12,929,000 | 994,000 | 2,277,376 | ||
| 47 | Mar 28, 2026 13:59 | 4,351 | 33,706,623 | 12,929,000 | 994,000 | 2,281,472 | ||
| 48 | Mar 28, 2026 14:00 | 4,352 | 35,818,503 | 13,925,000 | 0 | 2,486,272 | ||
| 49 | Mar 28, 2026 14:00 | 4,352 | 33,380,289 | 12,933,000 | 994,000 | 2,281,472 | ||
| 50 | Mar 28, 2026 14:01 | 4,353 | 25,641,073 | 12,934,000 | 994,000 | 2,494,464 | ||
| 51 | Mar 28, 2026 14:00 | 4,353 | 31,088,441 | 12,936,000 | 995,000 | 2,494,464 | ||
| 52 | Mar 28, 2026 13:58 | 4,353 | 32,610,268 | 12,935,000 | 995,000 | 2,281,472 | ||
| 53 | Mar 28, 2026 13:59 | 4,354 | 27,493,301 | 12,939,000 | 995,000 | 2,502,656 | ||
| 54 | Mar 28, 2026 14:01 | 4,354 | 29,111,458 | 12,938,000 | 995,000 | 2,494,464 | ||
| 55 | Mar 28, 2026 13:58 | 4,355 | 31,979,989 | 11,945,000 | 1,990,000 | 2,490,368 | ||
| 56 | Mar 28, 2026 13:59 | 4,355 | 30,311,276 | 12,941,000 | 995,000 | 2,498,560 | ||
| 57 | Mar 28, 2026 13:59 | 4,356 | 37,025,768 | 12,944,000 | 995,000 | 2,281,472 | ||
| 58 | Mar 28, 2026 14:00 | 4,356 | 26,965,126 | 12,944,000 | 995,000 | 2,494,464 | ||
| 59 | Mar 28, 2026 14:00 | 4,356 | 29,476,312 | 12,945,000 | 995,000 | 2,281,472 | ||
| 60 | Mar 28, 2026 13:59 | 4,356 | 25,485,660 | 13,938,000 | 0 | 2,498,560 | ||
| 61 | Mar 28, 2026 14:02 | 4,357 | 37,442,074 | 12,946,000 | 995,000 | 2,281,472 | ||
| 62 | Mar 28, 2026 14:01 | 4,357 | 36,006,097 | 12,947,000 | 995,000 | 2,502,656 | ||
| 63 | Mar 28, 2026 14:00 | 4,357 | 29,143,588 | 12,947,000 | 995,000 | 2,281,472 | ||
| 64 | Mar 28, 2026 14:02 | 4,358 | 34,487,438 | 12,948,000 | 996,000 | 2,494,464 | ||
| 65 | Mar 28, 2026 13:59 | 4,358 | 45,097,860 | 12,949,000 | 996,000 | 2,281,472 | ||
| 66 | Mar 28, 2026 14:01 | 4,360 | 31,801,268 | 12,955,000 | 996,000 | 2,494,464 | ||
| 67 | Mar 28, 2026 13:59 | 4,363 | 29,826,417 | 12,965,000 | 997,000 | 2,281,472 | ||
| 68 | Mar 28, 2026 13:58 | 4,363 | 29,317,620 | 12,963,000 | 997,000 | 2,498,560 | ||
| 69 | Mar 28, 2026 14:02 | 4,365 | 38,952,653 | 12,972,000 | 997,000 | 2,281,472 | ||
| 70 | Mar 28, 2026 13:59 | 4,366 | 30,489,961 | 12,973,000 | 997,000 | 2,486,272 | ||
| 71 | Mar 28, 2026 14:01 | 4,367 | 29,800,085 | 12,976,000 | 998,000 | 2,494,464 | ||
| 72 | Mar 28, 2026 14:01 | 4,367 | 29,507,270 | 12,975,000 | 998,000 | 2,281,472 | ||
| 73 | Mar 28, 2026 14:01 | 4,367 | 31,802,560 | 12,976,000 | 998,000 | 2,498,560 | ||
| 74 | Mar 28, 2026 13:59 | 4,367 | 39,640,973 | 12,975,000 | 998,000 | 2,502,656 | ||
| 75 | Mar 28, 2026 14:00 | 4,368 | 29,779,858 | 11,981,000 | 1,996,000 | 2,281,472 | ||
| 76 | Mar 28, 2026 13:58 | 4,370 | 31,016,634 | 12,986,000 | 998,000 | 2,502,656 | ||
| 77 | Mar 28, 2026 13:58 | 4,370 | 38,692,614 | 11,986,000 | 1,997,000 | 2,494,464 | ||
| 78 | Mar 28, 2026 13:59 | 4,371 | 43,930,533 | 12,989,000 | 999,000 | 2,281,472 | ||
| 79 | Mar 28, 2026 13:58 | 4,371 | 29,825,536 | 12,989,000 | 999,000 | 2,281,472 | ||
| 80 | Mar 28, 2026 14:02 | 4,372 | 29,205,333 | 12,991,000 | 999,000 | 2,494,464 | ||
| 81 | Mar 28, 2026 14:00 | 4,373 | 32,160,641 | 12,995,000 | 999,000 | 2,281,472 | ||
| 82 | Mar 28, 2026 14:01 | 4,373 | 41,439,005 | 12,994,000 | 999,000 | 2,281,472 | ||
| 83 | Mar 28, 2026 14:01 | 4,375 | 32,429,385 | 13,001,000 | 1,000,000 | 2,281,472 | ||
| 84 | Mar 28, 2026 14:00 | 4,377 | 29,086,706 | 13,005,000 | 1,000,000 | 2,281,472 | ||
| 85 | Mar 28, 2026 13:59 | 4,378 | 29,135,061 | 12,007,000 | 2,001,000 | 2,490,368 | ||
| 86 | Mar 28, 2026 13:58 | 4,380 | 32,285,283 | 13,015,000 | 1,001,000 | 2,273,280 | ||
| 87 | Mar 28, 2026 13:59 | 4,387 | 30,131,737 | 13,037,000 | 1,002,000 | 2,494,464 | ||
| 88 | Mar 28, 2026 13:58 | 4,393 | 34,117,707 | 12,048,000 | 2,008,000 | 2,490,368 | ||
| 89 | Mar 28, 2026 13:58 | 4,402 | 32,967,074 | 12,075,000 | 2,012,000 | 2,281,472 | ||
| 90 | Mar 28, 2026 14:00 | 4,435 | 27,259,360 | 12,164,000 | 2,027,000 | 2,281,472 |