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 16:44 | 4,320 | 38,965,742 | 12,836,000 | 987,000 | 2,281,472 | ||
| 2 | Mar 28, 2026 16:46 | 4,323 | 37,275,372 | 12,845,000 | 988,000 | 2,281,472 | ||
| 3 | Mar 28, 2026 16:43 | 4,326 | 31,676,966 | 13,844,000 | 0 | 2,277,376 | ||
| 4 | Mar 28, 2026 16:46 | 4,329 | 33,578,078 | 12,865,000 | 989,000 | 2,494,464 | ||
| 5 | Mar 28, 2026 16:45 | 4,330 | 26,839,774 | 12,867,000 | 989,000 | 2,498,560 | ||
| 6 | Mar 28, 2026 16:43 | 4,332 | 25,367,661 | 12,872,000 | 990,000 | 2,281,472 | ||
| 7 | Mar 28, 2026 16:46 | 4,333 | 29,194,235 | 12,877,000 | 990,000 | 2,281,472 | ||
| 8 | Mar 28, 2026 16:44 | 4,333 | 44,813,972 | 12,875,000 | 990,000 | 2,498,560 | ||
| 9 | Mar 28, 2026 16:47 | 4,334 | 39,590,375 | 12,880,000 | 990,000 | 2,498,560 | ||
| 10 | Mar 28, 2026 16:46 | 4,334 | 31,754,817 | 13,870,000 | 0 | 2,494,464 | ||
| 11 | Mar 28, 2026 16:43 | 4,335 | 25,170,596 | 12,882,000 | 990,000 | 2,281,472 | ||
| 12 | Mar 28, 2026 16:44 | 4,336 | 23,964,023 | 12,884,000 | 991,000 | 2,281,472 | ||
| 13 | Mar 28, 2026 16:43 | 4,337 | 27,751,766 | 12,888,000 | 991,000 | 2,281,472 | ||
| 14 | Mar 28, 2026 16:44 | 4,337 | 26,342,805 | 12,887,000 | 991,000 | 2,498,560 | ||
| 15 | Mar 28, 2026 16:46 | 4,337 | 39,786,779 | 11,897,000 | 1,982,000 | 2,498,560 | ||
| 16 | Mar 28, 2026 16:44 | 4,338 | 27,460,789 | 12,891,000 | 991,000 | 2,498,560 | ||
| 17 | Mar 28, 2026 16:43 | 4,338 | 31,654,002 | 12,890,000 | 991,000 | 2,490,368 | ||
| 18 | Mar 28, 2026 16:45 | 4,338 | 32,887,715 | 12,890,000 | 991,000 | 2,494,464 | ||
| 19 | Mar 28, 2026 16:45 | 4,338 | 38,739,704 | 12,890,000 | 991,000 | 2,498,560 | ||
| 20 | Mar 28, 2026 16:45 | 4,339 | 41,253,308 | 12,894,000 | 991,000 | 2,494,464 | ||
| 21 | Mar 28, 2026 16:44 | 4,339 | 29,669,869 | 12,895,000 | 991,000 | 2,494,464 | ||
| 22 | Mar 28, 2026 16:43 | 4,340 | 28,707,227 | 12,896,000 | 992,000 | 2,490,368 | ||
| 23 | Mar 28, 2026 16:45 | 4,340 | 30,084,068 | 12,897,000 | 992,000 | 2,281,472 | ||
| 24 | Mar 28, 2026 16:44 | 4,341 | 28,279,609 | 12,898,000 | 992,000 | 2,281,472 | ||
| 25 | Mar 28, 2026 16:46 | 4,341 | 27,544,721 | 12,898,000 | 992,000 | 2,502,656 | ||
| 26 | Mar 28, 2026 16:44 | 4,342 | 32,721,486 | 12,903,000 | 992,000 | 2,486,272 | ||
| 27 | Mar 28, 2026 16:47 | 4,343 | 28,525,147 | 12,906,000 | 992,000 | 2,490,368 | ||
| 28 | Mar 28, 2026 16:44 | 4,343 | 35,965,317 | 12,904,000 | 992,000 | 2,281,472 | ||
| 29 | Mar 28, 2026 16:45 | 4,343 | 30,680,557 | 12,904,000 | 992,000 | 2,494,464 | ||
| 30 | Mar 28, 2026 16:46 | 4,344 | 30,267,065 | 12,909,000 | 993,000 | 2,281,472 | ||
| 31 | Mar 28, 2026 16:46 | 4,344 | 37,606,675 | 12,908,000 | 992,000 | 2,490,368 | ||
| 32 | Mar 28, 2026 16:43 | 4,345 | 40,024,734 | 12,912,000 | 993,000 | 2,494,464 | ||
| 33 | Mar 28, 2026 16:43 | 4,346 | 29,241,774 | 12,915,000 | 993,000 | 2,502,656 | ||
| 34 | Mar 28, 2026 16:45 | 4,346 | 30,123,549 | 12,913,000 | 993,000 | 2,494,464 | ||
| 35 | Mar 28, 2026 16:44 | 4,346 | 29,320,299 | 13,906,000 | 0 | 2,498,560 | ||
| 36 | Mar 28, 2026 16:43 | 4,347 | 30,962,915 | 13,911,000 | 0 | 2,482,176 | ||
| 37 | Mar 28, 2026 16:43 | 4,347 | 38,680,402 | 12,917,000 | 993,000 | 2,494,464 | ||
| 38 | Mar 28, 2026 16:44 | 4,347 | 26,936,704 | 13,911,000 | 0 | 2,281,472 | ||
| 39 | Mar 28, 2026 16:45 | 4,347 | 42,647,122 | 12,918,000 | 993,000 | 2,281,472 | ||
| 40 | Mar 28, 2026 16:46 | 4,348 | 32,683,517 | 13,913,000 | 0 | 2,502,656 | ||
| 41 | Mar 28, 2026 16:47 | 4,348 | 27,991,482 | 12,919,000 | 993,000 | 2,498,560 | ||
| 42 | Mar 28, 2026 16:43 | 4,348 | 30,894,903 | 12,920,000 | 993,000 | 2,490,368 | ||
| 43 | Mar 28, 2026 16:44 | 4,349 | 26,166,254 | 12,924,000 | 994,000 | 2,277,376 | ||
| 44 | Mar 28, 2026 16:45 | 4,349 | 32,493,431 | 11,929,000 | 1,988,000 | 2,494,464 | ||
| 45 | Mar 28, 2026 16:45 | 4,349 | 30,837,441 | 12,923,000 | 994,000 | 2,281,472 | ||
| 46 | Mar 28, 2026 16:45 | 4,349 | 30,923,257 | 12,924,000 | 994,000 | 2,498,560 | ||
| 47 | Mar 28, 2026 16:45 | 4,350 | 33,874,724 | 11,931,000 | 1,988,000 | 2,490,368 | ||
| 48 | Mar 28, 2026 16:44 | 4,350 | 26,931,323 | 13,920,000 | 0 | 2,490,368 | ||
| 49 | Mar 28, 2026 16:45 | 4,351 | 29,020,120 | 12,928,000 | 994,000 | 2,486,272 | ||
| 50 | Mar 28, 2026 16:44 | 4,351 | 30,241,674 | 12,928,000 | 994,000 | 2,281,472 | ||
| 51 | Mar 28, 2026 16:45 | 4,351 | 33,256,229 | 12,929,000 | 994,000 | 2,490,368 | ||
| 52 | Mar 28, 2026 16:44 | 4,352 | 31,460,024 | 12,931,000 | 994,000 | 2,494,464 | ||
| 53 | Mar 28, 2026 16:47 | 4,353 | 41,783,447 | 12,934,000 | 994,000 | 2,494,464 | ||
| 54 | Mar 28, 2026 16:44 | 4,354 | 29,328,615 | 11,942,000 | 1,990,000 | 2,281,472 | ||
| 55 | Mar 28, 2026 16:45 | 4,354 | 28,458,311 | 12,938,000 | 995,000 | 2,281,472 | ||
| 56 | Mar 28, 2026 16:44 | 4,355 | 30,701,039 | 12,942,000 | 995,000 | 2,494,464 | ||
| 57 | Mar 28, 2026 16:45 | 4,355 | 32,395,979 | 12,941,000 | 995,000 | 2,498,560 | ||
| 58 | Mar 28, 2026 16:43 | 4,355 | 29,774,273 | 11,945,000 | 1,990,000 | 2,281,472 | ||
| 59 | Mar 28, 2026 16:46 | 4,355 | 26,775,583 | 11,946,000 | 1,991,000 | 2,281,472 | ||
| 60 | Mar 28, 2026 16:46 | 4,356 | 29,717,322 | 12,945,000 | 995,000 | 2,281,472 | ||
| 61 | Mar 28, 2026 16:46 | 4,356 | 31,814,476 | 12,943,000 | 995,000 | 2,498,560 | ||
| 62 | Mar 28, 2026 16:46 | 4,356 | 36,568,503 | 12,943,000 | 995,000 | 2,490,368 | ||
| 63 | Mar 28, 2026 16:43 | 4,356 | 37,456,791 | 12,943,000 | 995,000 | 2,281,472 | ||
| 64 | Mar 28, 2026 16:45 | 4,356 | 31,489,576 | 12,943,000 | 995,000 | 2,281,472 | ||
| 65 | Mar 28, 2026 16:43 | 4,358 | 34,251,935 | 12,948,000 | 996,000 | 2,494,464 | ||
| 66 | Mar 28, 2026 16:47 | 4,358 | 36,482,383 | 12,949,000 | 996,000 | 2,494,464 | ||
| 67 | Mar 28, 2026 16:47 | 4,358 | 26,973,574 | 11,952,000 | 1,992,000 | 2,486,272 | ||
| 68 | Mar 28, 2026 16:46 | 4,359 | 37,915,313 | 12,953,000 | 996,000 | 2,281,472 | ||
| 69 | Mar 28, 2026 16:43 | 4,360 | 38,516,621 | 12,955,000 | 996,000 | 2,281,472 | ||
| 70 | Mar 28, 2026 16:44 | 4,361 | 28,145,855 | 11,962,000 | 1,993,000 | 2,494,464 | ||
| 71 | Mar 28, 2026 16:44 | 4,361 | 28,117,486 | 12,958,000 | 996,000 | 2,498,560 | ||
| 72 | Mar 28, 2026 16:46 | 4,361 | 29,035,152 | 12,958,000 | 996,000 | 2,502,656 | ||
| 73 | Mar 28, 2026 16:46 | 4,362 | 35,299,960 | 11,964,000 | 1,994,000 | 2,486,272 | ||
| 74 | Mar 28, 2026 16:45 | 4,363 | 36,341,142 | 12,966,000 | 997,000 | 2,281,472 | ||
| 75 | Mar 28, 2026 16:43 | 4,363 | 37,145,763 | 12,965,000 | 997,000 | 2,281,472 | ||
| 76 | Mar 28, 2026 16:47 | 4,363 | 28,485,697 | 12,964,000 | 997,000 | 2,281,472 | ||
| 77 | Mar 28, 2026 16:45 | 4,365 | 27,939,078 | 12,971,000 | 997,000 | 2,281,472 | ||
| 78 | Mar 28, 2026 16:43 | 4,367 | 30,942,481 | 12,977,000 | 998,000 | 2,498,560 | ||
| 79 | Mar 28, 2026 16:47 | 4,368 | 31,323,689 | 11,980,000 | 1,996,000 | 2,498,560 | ||
| 80 | Mar 28, 2026 16:45 | 4,372 | 29,858,853 | 11,992,000 | 1,998,000 | 2,498,560 | ||
| 81 | Mar 28, 2026 16:43 | 4,373 | 35,463,034 | 12,995,000 | 999,000 | 2,281,472 | ||
| 82 | Mar 28, 2026 16:46 | 4,374 | 36,700,899 | 11,999,000 | 1,999,000 | 2,498,560 | ||
| 83 | Mar 28, 2026 16:45 | 4,376 | 44,482,597 | 12,004,000 | 2,000,000 | 2,490,368 | ||
| 84 | Mar 28, 2026 16:44 | 4,377 | 40,749,949 | 13,007,000 | 1,000,000 | 2,486,272 | ||
| 85 | Mar 28, 2026 16:46 | 4,377 | 35,996,278 | 13,005,000 | 1,000,000 | 2,490,368 | ||
| 86 | Mar 28, 2026 16:46 | 4,378 | 39,508,057 | 13,009,000 | 1,000,000 | 2,281,472 | ||
| 87 | Mar 28, 2026 16:44 | 4,379 | 32,428,545 | 12,012,000 | 2,002,000 | 2,281,472 | ||
| 88 | Mar 28, 2026 16:46 | 4,383 | 32,484,403 | 13,024,000 | 1,001,000 | 2,498,560 | ||
| 89 | Mar 28, 2026 16:47 | 4,387 | 31,919,872 | 13,037,000 | 1,002,000 | 2,281,472 | ||
| 90 | Mar 28, 2026 16:46 | 4,388 | 27,184,671 | 13,039,000 | 1,003,000 | 2,498,560 |