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 19:36 | 4,330 | 27,079,350 | 12,867,000 | 989,000 | 2,281,472 | ||
| 2 | Mar 28, 2026 19:37 | 4,336 | 27,129,946 | 12,884,000 | 991,000 | 2,490,368 | ||
| 3 | Mar 28, 2026 19:39 | 4,338 | 30,381,208 | 12,889,000 | 991,000 | 2,494,464 | ||
| 4 | Mar 28, 2026 19:38 | 4,338 | 32,784,608 | 12,889,000 | 991,000 | 2,502,656 | ||
| 5 | Mar 28, 2026 19:38 | 4,338 | 39,571,800 | 13,883,000 | 0 | 2,498,560 | ||
| 6 | Mar 28, 2026 19:38 | 4,339 | 34,620,433 | 12,893,000 | 991,000 | 2,498,560 | ||
| 7 | Mar 28, 2026 19:36 | 4,339 | 29,293,701 | 12,895,000 | 991,000 | 2,281,472 | ||
| 8 | Mar 28, 2026 19:38 | 4,339 | 35,098,151 | 12,895,000 | 991,000 | 2,490,368 | ||
| 9 | Mar 28, 2026 19:37 | 4,340 | 32,036,085 | 12,897,000 | 992,000 | 2,281,472 | ||
| 10 | Mar 28, 2026 19:37 | 4,340 | 39,584,491 | 12,896,000 | 992,000 | 2,494,464 | ||
| 11 | Mar 28, 2026 19:38 | 4,341 | 29,523,134 | 12,900,000 | 992,000 | 2,281,472 | ||
| 12 | Mar 28, 2026 19:38 | 4,341 | 28,323,341 | 12,898,000 | 992,000 | 2,502,656 | ||
| 13 | Mar 28, 2026 19:38 | 4,341 | 38,499,524 | 12,900,000 | 992,000 | 2,490,368 | ||
| 14 | Mar 28, 2026 19:39 | 4,341 | 29,585,570 | 12,899,000 | 992,000 | 2,490,368 | ||
| 15 | Mar 28, 2026 19:38 | 4,342 | 27,227,121 | 12,901,000 | 992,000 | 2,281,472 | ||
| 16 | Mar 28, 2026 19:37 | 4,342 | 40,493,448 | 12,902,000 | 992,000 | 2,281,472 | ||
| 17 | Mar 28, 2026 19:36 | 4,343 | 31,183,431 | 12,904,000 | 992,000 | 2,486,272 | ||
| 18 | Mar 28, 2026 19:39 | 4,344 | 39,494,730 | 12,908,000 | 992,000 | 2,490,368 | ||
| 19 | Mar 28, 2026 19:39 | 4,344 | 31,012,889 | 12,831,000 | 1,069,000 | 2,502,656 | ||
| 20 | Mar 28, 2026 19:37 | 4,345 | 29,534,139 | 12,911,000 | 993,000 | 2,490,368 | ||
| 21 | Mar 28, 2026 19:36 | 4,346 | 31,449,940 | 13,906,000 | 0 | 2,494,464 | ||
| 22 | Mar 28, 2026 19:36 | 4,346 | 29,007,578 | 13,907,000 | 0 | 2,486,272 | ||
| 23 | Mar 28, 2026 19:36 | 4,346 | 41,830,292 | 12,914,000 | 993,000 | 2,281,472 | ||
| 24 | Mar 28, 2026 19:38 | 4,347 | 31,727,218 | 11,923,000 | 1,987,000 | 2,281,472 | ||
| 25 | Mar 28, 2026 19:39 | 4,347 | 26,669,711 | 11,923,000 | 1,987,000 | 2,494,464 | ||
| 26 | Mar 28, 2026 19:37 | 4,347 | 33,140,782 | 12,918,000 | 993,000 | 2,281,472 | ||
| 27 | Mar 28, 2026 19:37 | 4,348 | 29,331,202 | 12,919,000 | 993,000 | 2,502,656 | ||
| 28 | Mar 28, 2026 19:37 | 4,349 | 34,772,673 | 12,922,000 | 994,000 | 2,502,656 | ||
| 29 | Mar 28, 2026 19:36 | 4,349 | 30,316,999 | 12,924,000 | 994,000 | 2,502,656 | ||
| 30 | Mar 28, 2026 19:39 | 4,350 | 29,538,857 | 12,926,000 | 994,000 | 2,281,472 | ||
| 31 | Mar 28, 2026 19:36 | 4,352 | 31,968,798 | 12,931,000 | 994,000 | 2,490,368 | ||
| 32 | Mar 28, 2026 19:39 | 4,352 | 36,009,998 | 12,933,000 | 994,000 | 2,281,472 | ||
| 33 | Mar 28, 2026 19:38 | 4,352 | 42,739,107 | 13,925,000 | 0 | 2,490,368 | ||
| 34 | Mar 28, 2026 19:37 | 4,353 | 27,379,543 | 12,936,000 | 995,000 | 2,490,368 | ||
| 35 | Mar 28, 2026 19:37 | 4,355 | 46,687,140 | 12,941,000 | 995,000 | 2,490,368 | ||
| 36 | Mar 28, 2026 19:36 | 4,355 | 31,346,170 | 12,941,000 | 995,000 | 2,498,560 | ||
| 37 | Mar 28, 2026 19:39 | 4,358 | 32,984,274 | 11,953,000 | 1,992,000 | 2,494,464 | ||
| 38 | Mar 28, 2026 19:39 | 4,358 | 27,613,310 | 12,950,000 | 996,000 | 2,277,376 | ||
| 39 | Mar 28, 2026 19:39 | 4,359 | 31,311,034 | 12,952,000 | 996,000 | 2,277,376 | ||
| 40 | Mar 28, 2026 19:37 | 4,359 | 35,163,782 | 12,952,000 | 996,000 | 2,490,368 | ||
| 41 | Mar 28, 2026 19:37 | 4,360 | 29,461,253 | 12,957,000 | 996,000 | 2,281,472 | ||
| 42 | Mar 28, 2026 19:36 | 4,360 | 38,363,341 | 11,958,000 | 1,993,000 | 2,494,464 | ||
| 43 | Mar 28, 2026 19:38 | 4,360 | 37,870,510 | 12,956,000 | 996,000 | 2,502,656 | ||
| 44 | Mar 28, 2026 19:39 | 4,361 | 31,527,046 | 12,958,000 | 996,000 | 2,281,472 | ||
| 45 | Mar 28, 2026 19:39 | 4,361 | 34,693,701 | 12,960,000 | 996,000 | 2,502,656 | ||
| 46 | Mar 28, 2026 19:38 | 4,361 | 29,524,098 | 11,963,000 | 1,993,000 | 2,486,272 | ||
| 47 | Mar 28, 2026 19:36 | 4,361 | 25,688,593 | 12,960,000 | 996,000 | 2,281,472 | ||
| 48 | Mar 28, 2026 19:37 | 4,361 | 35,378,107 | 12,958,000 | 996,000 | 2,490,368 | ||
| 49 | Mar 28, 2026 19:38 | 4,362 | 34,173,581 | 12,961,000 | 997,000 | 2,494,464 | ||
| 50 | Mar 28, 2026 19:37 | 4,362 | 25,589,056 | 12,962,000 | 997,000 | 2,498,560 | ||
| 51 | Mar 28, 2026 19:37 | 4,363 | 26,720,219 | 11,968,000 | 1,994,000 | 2,281,472 | ||
| 52 | Mar 28, 2026 19:36 | 4,363 | 37,466,032 | 12,965,000 | 997,000 | 2,498,560 | ||
| 53 | Mar 28, 2026 19:39 | 4,364 | 28,592,645 | 11,970,000 | 1,995,000 | 2,494,464 | ||
| 54 | Mar 28, 2026 19:37 | 4,364 | 29,925,737 | 12,968,000 | 997,000 | 2,490,368 | ||
| 55 | Mar 28, 2026 19:38 | 4,365 | 28,570,365 | 11,974,000 | 1,995,000 | 2,494,464 | ||
| 56 | Mar 28, 2026 19:36 | 4,365 | 37,415,271 | 12,970,000 | 997,000 | 2,281,472 | ||
| 57 | Mar 28, 2026 19:39 | 4,366 | 31,747,052 | 12,974,000 | 998,000 | 2,494,464 | ||
| 58 | Mar 28, 2026 19:39 | 4,366 | 37,464,241 | 11,976,000 | 1,996,000 | 2,486,272 | ||
| 59 | Mar 28, 2026 19:38 | 4,366 | 29,336,146 | 12,973,000 | 997,000 | 2,281,472 | ||
| 60 | Mar 28, 2026 19:39 | 4,367 | 30,752,175 | 11,977,000 | 1,996,000 | 2,281,472 | ||
| 61 | Mar 28, 2026 19:38 | 4,367 | 27,206,389 | 12,975,000 | 998,000 | 2,502,656 | ||
| 62 | Mar 28, 2026 19:37 | 4,367 | 32,087,876 | 11,979,000 | 1,996,000 | 2,281,472 | ||
| 63 | Mar 28, 2026 19:38 | 4,369 | 31,937,152 | 11,983,000 | 1,997,000 | 2,494,464 | ||
| 64 | Mar 28, 2026 19:38 | 4,369 | 30,536,771 | 11,983,000 | 1,997,000 | 2,494,464 | ||
| 65 | Mar 28, 2026 19:37 | 4,369 | 26,844,712 | 11,983,000 | 1,997,000 | 2,494,464 | ||
| 66 | Mar 28, 2026 19:36 | 4,372 | 30,053,620 | 11,991,000 | 1,998,000 | 2,281,472 | ||
| 67 | Mar 28, 2026 19:36 | 4,373 | 30,907,387 | 12,993,000 | 999,000 | 2,281,472 | ||
| 68 | Mar 28, 2026 19:38 | 4,373 | 32,409,122 | 11,994,000 | 1,999,000 | 2,281,472 | ||
| 69 | Mar 28, 2026 19:38 | 4,375 | 28,606,406 | 13,000,000 | 1,000,000 | 2,498,560 | ||
| 70 | Mar 28, 2026 19:39 | 4,376 | 29,945,432 | 12,004,000 | 2,000,000 | 2,281,472 | ||
| 71 | Mar 28, 2026 19:38 | 4,376 | 39,000,877 | 13,002,000 | 1,000,000 | 2,494,464 | ||
| 72 | Mar 28, 2026 19:37 | 4,376 | 33,584,272 | 12,002,000 | 2,000,000 | 2,281,472 | ||
| 73 | Mar 28, 2026 19:39 | 4,376 | 31,294,810 | 13,004,000 | 1,000,000 | 2,498,560 | ||
| 74 | Mar 28, 2026 19:39 | 4,377 | 28,244,844 | 13,006,000 | 1,000,000 | 2,494,464 | ||
| 75 | Mar 28, 2026 19:39 | 4,377 | 26,401,669 | 12,006,000 | 2,001,000 | 2,486,272 | ||
| 76 | Mar 28, 2026 19:37 | 4,378 | 34,144,921 | 12,007,000 | 2,001,000 | 2,490,368 | ||
| 77 | Mar 28, 2026 19:38 | 4,378 | 34,761,981 | 12,010,000 | 2,001,000 | 2,498,560 | ||
| 78 | Mar 28, 2026 19:36 | 4,380 | 31,228,191 | 13,015,000 | 1,001,000 | 2,490,368 | ||
| 79 | Mar 28, 2026 19:37 | 4,383 | 28,210,347 | 14,027,000 | 0 | 2,535,424 | ||
| 80 | Mar 28, 2026 19:37 | 4,385 | 33,408,546 | 13,031,000 | 1,002,000 | 2,535,424 | ||
| 81 | Mar 28, 2026 19:37 | 4,385 | 29,885,884 | 12,028,000 | 2,004,000 | 2,535,424 | ||
| 82 | Mar 28, 2026 19:38 | 4,385 | 38,217,493 | 12,029,000 | 2,004,000 | 2,494,464 | ||
| 83 | Mar 28, 2026 19:36 | 4,389 | 29,772,000 | 12,039,000 | 2,006,000 | 2,281,472 | ||
| 84 | Mar 28, 2026 19:38 | 4,390 | 31,364,024 | 12,041,000 | 2,006,000 | 2,281,472 | ||
| 85 | Mar 28, 2026 19:39 | 4,395 | 39,349,167 | 12,055,000 | 2,009,000 | 2,486,272 | ||
| 86 | Mar 28, 2026 19:39 | 4,398 | 31,706,529 | 12,065,000 | 2,010,000 | 2,281,472 | ||
| 87 | Mar 28, 2026 19:39 | 4,403 | 35,225,327 | 13,084,000 | 1,006,000 | 2,277,376 | ||
| 88 | Mar 28, 2026 19:39 | 4,406 | 29,269,908 | 13,091,000 | 1,007,000 | 2,281,472 | ||
| 89 | Mar 28, 2026 19:36 | 4,411 | 36,461,936 | 13,108,000 | 1,008,000 | 2,490,368 | ||
| 90 | Mar 28, 2026 19:37 | 4,413 | 33,453,182 | 12,103,000 | 2,017,000 | 2,490,368 |