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 17:51 | 4,326 | 31,115,314 | 12,856,000 | 988,000 | 2,494,464 | ||
| 2 | Mar 28, 2026 17:55 | 4,331 | 28,116,362 | 12,870,000 | 990,000 | 2,498,560 | ||
| 3 | Mar 28, 2026 17:54 | 4,331 | 23,363,590 | 13,858,000 | 0 | 2,281,472 | ||
| 4 | Mar 28, 2026 17:52 | 4,332 | 40,589,022 | 12,872,000 | 990,000 | 2,281,472 | ||
| 5 | Mar 28, 2026 17:54 | 4,332 | 26,254,642 | 12,871,000 | 990,000 | 2,494,464 | ||
| 6 | Mar 28, 2026 17:53 | 4,333 | 30,060,662 | 11,884,000 | 1,980,000 | 2,498,560 | ||
| 7 | Mar 28, 2026 17:53 | 4,334 | 37,096,862 | 12,878,000 | 990,000 | 2,281,472 | ||
| 8 | Mar 28, 2026 17:52 | 4,336 | 27,502,956 | 12,885,000 | 991,000 | 2,281,472 | ||
| 9 | Mar 28, 2026 17:55 | 4,337 | 27,914,013 | 12,887,000 | 991,000 | 2,281,472 | ||
| 10 | Mar 28, 2026 17:51 | 4,337 | 30,649,014 | 12,886,000 | 991,000 | 2,490,368 | ||
| 11 | Mar 28, 2026 17:54 | 4,337 | 38,947,539 | 12,887,000 | 991,000 | 2,494,464 | ||
| 12 | Mar 28, 2026 17:54 | 4,337 | 30,037,541 | 12,888,000 | 991,000 | 2,494,464 | ||
| 13 | Mar 28, 2026 17:54 | 4,338 | 30,158,939 | 13,883,000 | 0 | 2,502,656 | ||
| 14 | Mar 28, 2026 17:53 | 4,338 | 29,678,916 | 13,882,000 | 0 | 2,490,368 | ||
| 15 | Mar 28, 2026 17:52 | 4,339 | 44,198,452 | 12,895,000 | 991,000 | 2,281,472 | ||
| 16 | Mar 28, 2026 17:55 | 4,339 | 32,204,899 | 13,884,000 | 0 | 2,494,464 | ||
| 17 | Mar 28, 2026 17:54 | 4,340 | 31,306,248 | 13,887,000 | 0 | 2,506,752 | ||
| 18 | Mar 28, 2026 17:53 | 4,340 | 40,279,104 | 12,896,000 | 992,000 | 2,498,560 | ||
| 19 | Mar 28, 2026 17:52 | 4,340 | 31,065,297 | 12,896,000 | 992,000 | 2,502,656 | ||
| 20 | Mar 28, 2026 17:51 | 4,340 | 25,871,038 | 12,896,000 | 992,000 | 2,281,472 | ||
| 21 | Mar 28, 2026 17:51 | 4,341 | 29,818,776 | 13,891,000 | 0 | 2,498,560 | ||
| 22 | Mar 28, 2026 17:53 | 4,341 | 27,525,693 | 12,900,000 | 992,000 | 2,498,560 | ||
| 23 | Mar 28, 2026 17:52 | 4,341 | 27,768,122 | 11,906,000 | 1,984,000 | 2,490,368 | ||
| 24 | Mar 28, 2026 17:54 | 4,342 | 34,848,977 | 12,903,000 | 992,000 | 2,281,472 | ||
| 25 | Mar 28, 2026 17:52 | 4,342 | 27,596,629 | 13,894,000 | 0 | 2,281,472 | ||
| 26 | Mar 28, 2026 17:53 | 4,342 | 33,325,139 | 12,902,000 | 992,000 | 2,281,472 | ||
| 27 | Mar 28, 2026 17:52 | 4,342 | 39,870,329 | 12,903,000 | 992,000 | 2,498,560 | ||
| 28 | Mar 28, 2026 17:52 | 4,342 | 28,336,543 | 12,901,000 | 992,000 | 2,494,464 | ||
| 29 | Mar 28, 2026 17:54 | 4,343 | 35,396,853 | 12,906,000 | 992,000 | 2,494,464 | ||
| 30 | Mar 28, 2026 17:54 | 4,343 | 37,098,499 | 13,896,000 | 0 | 2,494,464 | ||
| 31 | Mar 28, 2026 17:52 | 4,343 | 30,163,669 | 12,904,000 | 992,000 | 2,490,368 | ||
| 32 | Mar 28, 2026 17:53 | 4,343 | 45,572,336 | 12,906,000 | 992,000 | 2,494,464 | ||
| 33 | Mar 28, 2026 17:54 | 4,345 | 37,792,459 | 12,912,000 | 993,000 | 2,535,424 | ||
| 34 | Mar 28, 2026 17:52 | 4,345 | 34,390,601 | 13,905,000 | 0 | 2,498,560 | ||
| 35 | Mar 28, 2026 17:54 | 4,345 | 29,195,668 | 13,904,000 | 0 | 2,498,560 | ||
| 36 | Mar 28, 2026 17:52 | 4,345 | 28,622,625 | 12,912,000 | 993,000 | 2,494,464 | ||
| 37 | Mar 28, 2026 17:53 | 4,345 | 31,377,405 | 12,910,000 | 993,000 | 2,490,368 | ||
| 38 | Mar 28, 2026 17:53 | 4,345 | 29,946,579 | 12,912,000 | 993,000 | 2,281,472 | ||
| 39 | Mar 28, 2026 17:52 | 4,346 | 31,621,602 | 13,907,000 | 0 | 2,281,472 | ||
| 40 | Mar 28, 2026 17:55 | 4,347 | 30,053,552 | 12,918,000 | 993,000 | 2,494,464 | ||
| 41 | Mar 28, 2026 17:51 | 4,348 | 36,367,152 | 12,921,000 | 993,000 | 2,498,560 | ||
| 42 | Mar 28, 2026 17:52 | 4,348 | 34,257,195 | 12,919,000 | 993,000 | 2,478,080 | ||
| 43 | Mar 28, 2026 17:54 | 4,348 | 31,069,759 | 11,926,000 | 1,987,000 | 2,494,464 | ||
| 44 | Mar 28, 2026 17:53 | 4,349 | 34,375,451 | 12,846,000 | 1,070,000 | 2,498,560 | ||
| 45 | Mar 28, 2026 17:54 | 4,349 | 26,602,493 | 11,929,000 | 1,988,000 | 2,535,424 | ||
| 46 | Mar 28, 2026 17:52 | 4,351 | 30,047,188 | 12,929,000 | 994,000 | 2,494,464 | ||
| 47 | Mar 28, 2026 17:52 | 4,351 | 37,475,945 | 13,922,000 | 0 | 2,498,560 | ||
| 48 | Mar 28, 2026 17:55 | 4,352 | 31,273,290 | 12,931,000 | 994,000 | 2,490,368 | ||
| 49 | Mar 28, 2026 17:51 | 4,352 | 31,015,699 | 12,933,000 | 994,000 | 2,281,472 | ||
| 50 | Mar 28, 2026 17:52 | 4,353 | 31,662,376 | 13,928,000 | 0 | 2,494,464 | ||
| 51 | Mar 28, 2026 17:53 | 4,353 | 31,968,919 | 12,934,000 | 994,000 | 2,281,472 | ||
| 52 | Mar 28, 2026 17:53 | 4,355 | 37,252,396 | 12,940,000 | 995,000 | 2,502,656 | ||
| 53 | Mar 28, 2026 17:51 | 4,356 | 30,307,493 | 12,943,000 | 995,000 | 2,502,656 | ||
| 54 | Mar 28, 2026 17:54 | 4,356 | 31,632,353 | 12,944,000 | 995,000 | 2,498,560 | ||
| 55 | Mar 28, 2026 17:52 | 4,356 | 37,804,806 | 12,943,000 | 995,000 | 2,490,368 | ||
| 56 | Mar 28, 2026 17:53 | 4,357 | 26,847,126 | 12,947,000 | 995,000 | 2,486,272 | ||
| 57 | Mar 28, 2026 17:55 | 4,358 | 34,064,025 | 12,948,000 | 996,000 | 2,494,464 | ||
| 58 | Mar 28, 2026 17:55 | 4,358 | 26,945,321 | 12,948,000 | 996,000 | 2,498,560 | ||
| 59 | Mar 28, 2026 17:53 | 4,360 | 33,280,369 | 11,960,000 | 1,993,000 | 2,498,560 | ||
| 60 | Mar 28, 2026 17:54 | 4,361 | 30,799,400 | 11,963,000 | 1,993,000 | 2,494,464 | ||
| 61 | Mar 28, 2026 17:52 | 4,361 | 45,205,334 | 12,960,000 | 996,000 | 2,281,472 | ||
| 62 | Mar 28, 2026 17:55 | 4,363 | 28,918,271 | 12,965,000 | 997,000 | 2,281,472 | ||
| 63 | Mar 28, 2026 17:53 | 4,363 | 30,871,750 | 11,967,000 | 1,994,000 | 2,494,464 | ||
| 64 | Mar 28, 2026 17:54 | 4,363 | 28,863,763 | 12,965,000 | 997,000 | 2,498,560 | ||
| 65 | Mar 28, 2026 17:52 | 4,363 | 30,911,538 | 12,963,000 | 997,000 | 2,281,472 | ||
| 66 | Mar 28, 2026 17:53 | 4,364 | 32,493,996 | 12,967,000 | 997,000 | 2,281,472 | ||
| 67 | Mar 28, 2026 17:55 | 4,365 | 29,428,505 | 12,972,000 | 997,000 | 2,494,464 | ||
| 68 | Mar 28, 2026 17:53 | 4,367 | 32,249,266 | 11,979,000 | 1,996,000 | 2,281,472 | ||
| 69 | Mar 28, 2026 17:54 | 4,367 | 30,614,691 | 12,976,000 | 998,000 | 2,490,368 | ||
| 70 | Mar 28, 2026 17:54 | 4,368 | 31,199,283 | 12,978,000 | 998,000 | 2,281,472 | ||
| 71 | Mar 28, 2026 17:54 | 4,368 | 38,268,457 | 11,981,000 | 1,996,000 | 2,482,176 | ||
| 72 | Mar 28, 2026 17:52 | 4,368 | 40,300,427 | 12,981,000 | 998,000 | 2,494,464 | ||
| 73 | Mar 28, 2026 17:54 | 4,368 | 40,491,544 | 12,979,000 | 998,000 | 2,281,472 | ||
| 74 | Mar 28, 2026 17:53 | 4,369 | 28,715,534 | 12,984,000 | 998,000 | 2,277,376 | ||
| 75 | Mar 28, 2026 17:53 | 4,369 | 29,837,512 | 12,984,000 | 998,000 | 2,498,560 | ||
| 76 | Mar 28, 2026 17:52 | 4,369 | 35,229,840 | 12,984,000 | 998,000 | 2,498,560 | ||
| 77 | Mar 28, 2026 17:51 | 4,370 | 34,898,904 | 12,986,000 | 998,000 | 2,494,464 | ||
| 78 | Mar 28, 2026 17:53 | 4,371 | 34,679,557 | 11,988,000 | 1,998,000 | 2,494,464 | ||
| 79 | Mar 28, 2026 17:54 | 4,372 | 31,676,942 | 12,990,000 | 999,000 | 2,494,464 | ||
| 80 | Mar 28, 2026 17:51 | 4,373 | 36,927,347 | 12,993,000 | 999,000 | 2,281,472 | ||
| 81 | Mar 28, 2026 17:53 | 4,374 | 26,342,009 | 12,998,000 | 999,000 | 2,502,656 | ||
| 82 | Mar 28, 2026 17:54 | 4,376 | 30,275,013 | 13,002,000 | 1,000,000 | 2,281,472 | ||
| 83 | Mar 28, 2026 17:52 | 4,377 | 36,509,459 | 14,005,000 | 0 | 2,535,424 | ||
| 84 | Mar 28, 2026 17:54 | 4,377 | 27,086,557 | 13,007,000 | 1,000,000 | 2,494,464 | ||
| 85 | Mar 28, 2026 17:52 | 4,377 | 29,502,585 | 12,005,000 | 2,000,000 | 2,281,472 | ||
| 86 | Mar 28, 2026 17:53 | 4,378 | 31,908,659 | 13,008,000 | 1,000,000 | 2,281,472 | ||
| 87 | Mar 28, 2026 17:52 | 4,379 | 31,784,204 | 13,013,000 | 1,001,000 | 2,498,560 | ||
| 88 | Mar 28, 2026 17:53 | 4,379 | 30,521,894 | 13,013,000 | 1,001,000 | 2,502,656 | ||
| 89 | Mar 28, 2026 17:54 | 4,385 | 29,686,209 | 12,029,000 | 2,004,000 | 2,482,176 | ||
| 90 | Mar 28, 2026 17:53 | 4,399 | 30,442,924 | 12,066,000 | 2,011,000 | 2,281,472 |