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 15:46 | 4,333 | 38,338,052 | 12,875,000 | 990,000 | 2,498,560 | ||
| 2 | Mar 28, 2026 15:43 | 4,333 | 25,047,469 | 11,885,000 | 1,980,000 | 2,502,656 | ||
| 3 | Mar 28, 2026 15:45 | 4,334 | 40,742,548 | 12,879,000 | 990,000 | 2,494,464 | ||
| 4 | Mar 28, 2026 15:44 | 4,334 | 31,998,723 | 12,880,000 | 990,000 | 2,490,368 | ||
| 5 | Mar 28, 2026 15:46 | 4,335 | 27,860,088 | 12,881,000 | 990,000 | 2,494,464 | ||
| 6 | Mar 28, 2026 15:44 | 4,336 | 41,164,090 | 13,876,000 | 0 | 2,502,656 | ||
| 7 | Mar 28, 2026 15:47 | 4,336 | 42,200,045 | 12,883,000 | 991,000 | 2,494,464 | ||
| 8 | Mar 28, 2026 15:47 | 4,337 | 28,427,985 | 12,888,000 | 991,000 | 2,281,472 | ||
| 9 | Mar 28, 2026 15:45 | 4,337 | 27,830,041 | 12,888,000 | 991,000 | 2,502,656 | ||
| 10 | Mar 28, 2026 15:47 | 4,337 | 27,476,694 | 13,878,000 | 0 | 2,486,272 | ||
| 11 | Mar 28, 2026 15:46 | 4,337 | 28,971,811 | 12,888,000 | 991,000 | 2,506,752 | ||
| 12 | Mar 28, 2026 15:47 | 4,338 | 25,990,138 | 12,890,000 | 991,000 | 2,494,464 | ||
| 13 | Mar 28, 2026 15:47 | 4,338 | 41,789,090 | 12,891,000 | 991,000 | 2,281,472 | ||
| 14 | Mar 28, 2026 15:45 | 4,338 | 31,910,975 | 12,890,000 | 991,000 | 2,281,472 | ||
| 15 | Mar 28, 2026 15:45 | 4,338 | 27,974,759 | 13,881,000 | 0 | 2,498,560 | ||
| 16 | Mar 28, 2026 15:46 | 4,339 | 31,003,472 | 12,894,000 | 991,000 | 2,490,368 | ||
| 17 | Mar 28, 2026 15:46 | 4,339 | 33,890,467 | 12,895,000 | 991,000 | 2,498,560 | ||
| 18 | Mar 28, 2026 15:45 | 4,339 | 45,284,919 | 12,895,000 | 991,000 | 2,502,656 | ||
| 19 | Mar 28, 2026 15:45 | 4,339 | 27,226,040 | 13,884,000 | 0 | 2,281,472 | ||
| 20 | Mar 28, 2026 15:46 | 4,340 | 26,872,833 | 13,887,000 | 0 | 2,498,560 | ||
| 21 | Mar 28, 2026 15:46 | 4,340 | 33,926,064 | 13,888,000 | 0 | 2,494,464 | ||
| 22 | Mar 28, 2026 15:46 | 4,340 | 31,686,577 | 12,896,000 | 992,000 | 2,281,472 | ||
| 23 | Mar 28, 2026 15:45 | 4,341 | 32,087,663 | 13,890,000 | 0 | 2,502,656 | ||
| 24 | Mar 28, 2026 15:47 | 4,341 | 36,898,747 | 12,898,000 | 992,000 | 2,281,472 | ||
| 25 | Mar 28, 2026 15:43 | 4,342 | 40,846,115 | 12,903,000 | 992,000 | 2,502,656 | ||
| 26 | Mar 28, 2026 15:45 | 4,342 | 31,997,401 | 12,902,000 | 992,000 | 2,494,464 | ||
| 27 | Mar 28, 2026 15:45 | 4,342 | 39,609,774 | 12,902,000 | 992,000 | 2,490,368 | ||
| 28 | Mar 28, 2026 15:46 | 4,342 | 33,526,510 | 12,903,000 | 992,000 | 2,494,464 | ||
| 29 | Mar 28, 2026 15:44 | 4,342 | 38,704,589 | 12,901,000 | 992,000 | 2,494,464 | ||
| 30 | Mar 28, 2026 15:46 | 4,343 | 30,934,349 | 12,904,000 | 992,000 | 2,494,464 | ||
| 31 | Mar 28, 2026 15:46 | 4,343 | 28,509,486 | 11,914,000 | 1,985,000 | 2,281,472 | ||
| 32 | Mar 28, 2026 15:43 | 4,343 | 43,174,765 | 12,830,000 | 1,069,000 | 2,498,560 | ||
| 33 | Mar 28, 2026 15:43 | 4,343 | 36,744,462 | 12,904,000 | 992,000 | 2,281,472 | ||
| 34 | Mar 28, 2026 15:46 | 4,344 | 34,408,466 | 12,909,000 | 993,000 | 2,281,472 | ||
| 35 | Mar 28, 2026 15:45 | 4,344 | 44,222,469 | 12,908,000 | 992,000 | 2,281,472 | ||
| 36 | Mar 28, 2026 15:44 | 4,345 | 36,552,993 | 13,905,000 | 0 | 2,281,472 | ||
| 37 | Mar 28, 2026 15:45 | 4,345 | 43,686,184 | 12,912,000 | 993,000 | 2,281,472 | ||
| 38 | Mar 28, 2026 15:43 | 4,346 | 29,861,801 | 13,906,000 | 0 | 2,494,464 | ||
| 39 | Mar 28, 2026 15:44 | 4,346 | 28,963,399 | 13,908,000 | 0 | 2,498,560 | ||
| 40 | Mar 28, 2026 15:47 | 4,347 | 37,431,319 | 13,909,000 | 0 | 2,498,560 | ||
| 41 | Mar 28, 2026 15:47 | 4,347 | 37,792,902 | 12,918,000 | 993,000 | 2,498,560 | ||
| 42 | Mar 28, 2026 15:44 | 4,348 | 36,010,231 | 12,920,000 | 993,000 | 2,502,656 | ||
| 43 | Mar 28, 2026 15:45 | 4,350 | 28,276,686 | 12,927,000 | 994,000 | 2,494,464 | ||
| 44 | Mar 28, 2026 15:46 | 4,351 | 35,414,612 | 12,929,000 | 994,000 | 2,502,656 | ||
| 45 | Mar 28, 2026 15:44 | 4,351 | 33,709,787 | 11,935,000 | 1,989,000 | 2,281,472 | ||
| 46 | Mar 28, 2026 15:44 | 4,352 | 33,293,047 | 11,938,000 | 1,989,000 | 2,494,464 | ||
| 47 | Mar 28, 2026 15:45 | 4,352 | 27,333,821 | 12,931,000 | 994,000 | 2,535,424 | ||
| 48 | Mar 28, 2026 15:47 | 4,352 | 32,019,741 | 12,933,000 | 994,000 | 2,281,472 | ||
| 49 | Mar 28, 2026 15:47 | 4,352 | 28,842,629 | 13,925,000 | 0 | 2,281,472 | ||
| 50 | Mar 28, 2026 15:47 | 4,353 | 41,568,643 | 12,935,000 | 995,000 | 2,281,472 | ||
| 51 | Mar 28, 2026 15:46 | 4,353 | 30,160,885 | 12,936,000 | 995,000 | 2,281,472 | ||
| 52 | Mar 28, 2026 15:46 | 4,353 | 31,824,763 | 13,931,000 | 0 | 2,502,656 | ||
| 53 | Mar 28, 2026 15:43 | 4,353 | 27,662,742 | 12,934,000 | 994,000 | 2,281,472 | ||
| 54 | Mar 28, 2026 15:44 | 4,353 | 30,700,619 | 12,857,000 | 1,071,000 | 2,502,656 | ||
| 55 | Mar 28, 2026 15:46 | 4,353 | 34,694,811 | 12,936,000 | 995,000 | 2,281,472 | ||
| 56 | Mar 28, 2026 15:47 | 4,353 | 39,501,406 | 13,928,000 | 0 | 2,498,560 | ||
| 57 | Mar 28, 2026 15:45 | 4,355 | 34,285,890 | 12,942,000 | 995,000 | 2,281,472 | ||
| 58 | Mar 28, 2026 15:44 | 4,355 | 41,802,141 | 11,946,000 | 1,991,000 | 2,498,560 | ||
| 59 | Mar 28, 2026 15:43 | 4,357 | 28,939,785 | 12,946,000 | 995,000 | 2,281,472 | ||
| 60 | Mar 28, 2026 15:44 | 4,357 | 35,993,730 | 12,947,000 | 995,000 | 2,281,472 | ||
| 61 | Mar 28, 2026 15:46 | 4,358 | 38,105,649 | 12,949,000 | 996,000 | 2,281,472 | ||
| 62 | Mar 28, 2026 15:44 | 4,359 | 40,158,640 | 12,952,000 | 996,000 | 2,494,464 | ||
| 63 | Mar 28, 2026 15:46 | 4,359 | 32,445,373 | 12,952,000 | 996,000 | 2,498,560 | ||
| 64 | Mar 28, 2026 15:47 | 4,360 | 26,656,225 | 11,958,000 | 1,993,000 | 2,494,464 | ||
| 65 | Mar 28, 2026 15:44 | 4,360 | 30,766,098 | 12,956,000 | 996,000 | 2,281,472 | ||
| 66 | Mar 28, 2026 15:46 | 4,360 | 27,303,747 | 12,956,000 | 996,000 | 2,494,464 | ||
| 67 | Mar 28, 2026 15:43 | 4,360 | 33,117,165 | 12,955,000 | 996,000 | 2,281,472 | ||
| 68 | Mar 28, 2026 15:44 | 4,362 | 29,181,604 | 12,961,000 | 997,000 | 2,498,560 | ||
| 69 | Mar 28, 2026 15:44 | 4,363 | 34,003,644 | 12,964,000 | 997,000 | 2,490,368 | ||
| 70 | Mar 28, 2026 15:47 | 4,365 | 38,960,129 | 12,971,000 | 997,000 | 2,486,272 | ||
| 71 | Mar 28, 2026 15:45 | 4,367 | 31,975,330 | 12,975,000 | 998,000 | 2,502,656 | ||
| 72 | Mar 28, 2026 15:46 | 4,367 | 34,402,119 | 12,976,000 | 998,000 | 2,494,464 | ||
| 73 | Mar 28, 2026 15:44 | 4,367 | 27,543,435 | 12,975,000 | 998,000 | 2,535,424 | ||
| 74 | Mar 28, 2026 15:44 | 4,368 | 32,283,886 | 12,979,000 | 998,000 | 2,490,368 | ||
| 75 | Mar 28, 2026 15:45 | 4,368 | 31,054,617 | 12,978,000 | 998,000 | 2,281,472 | ||
| 76 | Mar 28, 2026 15:45 | 4,368 | 31,323,587 | 11,981,000 | 1,996,000 | 2,281,472 | ||
| 77 | Mar 28, 2026 15:45 | 4,369 | 29,244,838 | 12,982,000 | 998,000 | 2,281,472 | ||
| 78 | Mar 28, 2026 15:43 | 4,370 | 31,352,887 | 12,985,000 | 998,000 | 2,281,472 | ||
| 79 | Mar 28, 2026 15:45 | 4,372 | 30,114,278 | 12,992,000 | 999,000 | 2,281,472 | ||
| 80 | Mar 28, 2026 15:45 | 4,373 | 28,373,449 | 11,994,000 | 1,999,000 | 2,281,472 | ||
| 81 | Mar 28, 2026 15:44 | 4,373 | 28,458,011 | 11,994,000 | 1,999,000 | 2,281,472 | ||
| 82 | Mar 28, 2026 15:45 | 4,376 | 33,703,598 | 12,003,000 | 2,000,000 | 2,486,272 | ||
| 83 | Mar 28, 2026 15:44 | 4,378 | 30,432,147 | 12,008,000 | 2,001,000 | 2,498,560 | ||
| 84 | Mar 28, 2026 15:45 | 4,379 | 29,652,300 | 13,013,000 | 1,001,000 | 2,281,472 | ||
| 85 | Mar 28, 2026 15:44 | 4,383 | 28,295,000 | 13,023,000 | 1,001,000 | 2,490,368 | ||
| 86 | Mar 28, 2026 15:44 | 4,387 | 27,643,219 | 13,036,000 | 1,002,000 | 2,490,368 | ||
| 87 | Mar 28, 2026 15:45 | 4,390 | 28,479,876 | 12,042,000 | 2,007,000 | 2,490,368 | ||
| 88 | Mar 28, 2026 15:45 | 4,391 | 30,455,381 | 12,045,000 | 2,007,000 | 2,281,472 | ||
| 89 | Mar 28, 2026 15:46 | 4,394 | 32,331,994 | 12,053,000 | 2,008,000 | 2,494,464 | ||
| 90 | Mar 28, 2026 15:47 | 4,528 | 42,017,013 | 13,456,000 | 1,035,000 | 2,273,280 |