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 15:30 | 4,321 | 37,589,865 | 12,841,000 | 987,000 | 2,281,472 | ||
| 2 | Mar 28, 2026 15:30 | 4,325 | 29,830,411 | 12,853,000 | 988,000 | 2,494,464 | ||
| 3 | Mar 28, 2026 15:33 | 4,332 | 29,523,682 | 13,863,000 | 0 | 2,281,472 | ||
| 4 | Mar 28, 2026 15:33 | 4,334 | 38,901,799 | 13,870,000 | 0 | 2,494,464 | ||
| 5 | Mar 28, 2026 15:33 | 4,335 | 28,224,044 | 12,881,000 | 990,000 | 2,281,472 | ||
| 6 | Mar 28, 2026 15:33 | 4,335 | 33,689,622 | 13,872,000 | 0 | 2,498,560 | ||
| 7 | Mar 28, 2026 15:32 | 4,335 | 31,178,546 | 12,881,000 | 990,000 | 2,502,656 | ||
| 8 | Mar 28, 2026 15:30 | 4,336 | 35,110,470 | 12,884,000 | 991,000 | 2,281,472 | ||
| 9 | Mar 28, 2026 15:31 | 4,336 | 29,127,000 | 12,884,000 | 991,000 | 2,498,560 | ||
| 10 | Mar 28, 2026 15:33 | 4,337 | 26,407,303 | 13,878,000 | 0 | 2,498,560 | ||
| 11 | Mar 28, 2026 15:30 | 4,337 | 30,202,881 | 13,879,000 | 0 | 2,281,472 | ||
| 12 | Mar 28, 2026 15:31 | 4,338 | 29,252,763 | 12,891,000 | 991,000 | 2,490,368 | ||
| 13 | Mar 28, 2026 15:31 | 4,339 | 40,737,547 | 12,893,000 | 991,000 | 2,498,560 | ||
| 14 | Mar 28, 2026 15:32 | 4,339 | 28,112,962 | 12,893,000 | 991,000 | 2,506,752 | ||
| 15 | Mar 28, 2026 15:31 | 4,339 | 38,665,718 | 13,885,000 | 0 | 2,494,464 | ||
| 16 | Mar 28, 2026 15:31 | 4,339 | 38,437,694 | 12,895,000 | 991,000 | 2,281,472 | ||
| 17 | Mar 28, 2026 15:32 | 4,339 | 39,747,781 | 12,895,000 | 991,000 | 2,281,472 | ||
| 18 | Mar 28, 2026 15:31 | 4,340 | 31,204,933 | 12,897,000 | 992,000 | 2,494,464 | ||
| 19 | Mar 28, 2026 15:30 | 4,340 | 29,548,752 | 12,896,000 | 992,000 | 2,539,520 | ||
| 20 | Mar 28, 2026 15:32 | 4,340 | 37,430,426 | 12,896,000 | 992,000 | 2,494,464 | ||
| 21 | Mar 28, 2026 15:29 | 4,340 | 27,819,282 | 13,889,000 | 0 | 2,502,656 | ||
| 22 | Mar 28, 2026 15:32 | 4,340 | 39,351,778 | 12,897,000 | 992,000 | 2,281,472 | ||
| 23 | Mar 28, 2026 15:31 | 4,341 | 39,528,688 | 12,900,000 | 992,000 | 2,281,472 | ||
| 24 | Mar 28, 2026 15:30 | 4,341 | 43,412,836 | 12,898,000 | 992,000 | 2,498,560 | ||
| 25 | Mar 28, 2026 15:32 | 4,341 | 31,167,807 | 13,891,000 | 0 | 2,494,464 | ||
| 26 | Mar 28, 2026 15:31 | 4,341 | 41,980,379 | 12,900,000 | 992,000 | 2,494,464 | ||
| 27 | Mar 28, 2026 15:30 | 4,342 | 28,842,818 | 12,903,000 | 992,000 | 2,281,472 | ||
| 28 | Mar 28, 2026 15:30 | 4,342 | 32,001,610 | 11,910,000 | 1,985,000 | 2,281,472 | ||
| 29 | Mar 28, 2026 15:31 | 4,342 | 35,250,209 | 12,901,000 | 992,000 | 2,494,464 | ||
| 30 | Mar 28, 2026 15:33 | 4,343 | 30,877,006 | 12,905,000 | 992,000 | 2,490,368 | ||
| 31 | Mar 28, 2026 15:33 | 4,343 | 40,974,836 | 12,905,000 | 992,000 | 2,281,472 | ||
| 32 | Mar 28, 2026 15:31 | 4,343 | 35,379,522 | 12,905,000 | 992,000 | 2,281,472 | ||
| 33 | Mar 28, 2026 15:32 | 4,344 | 35,437,384 | 12,909,000 | 993,000 | 2,490,368 | ||
| 34 | Mar 28, 2026 15:31 | 4,344 | 31,657,716 | 12,908,000 | 992,000 | 2,494,464 | ||
| 35 | Mar 28, 2026 15:30 | 4,344 | 24,471,020 | 12,909,000 | 993,000 | 2,494,464 | ||
| 36 | Mar 28, 2026 15:30 | 4,345 | 29,741,347 | 12,912,000 | 993,000 | 2,281,472 | ||
| 37 | Mar 28, 2026 15:31 | 4,346 | 38,355,038 | 12,914,000 | 993,000 | 2,281,472 | ||
| 38 | Mar 28, 2026 15:32 | 4,346 | 31,900,094 | 12,913,000 | 993,000 | 2,281,472 | ||
| 39 | Mar 28, 2026 15:30 | 4,346 | 32,778,510 | 12,915,000 | 993,000 | 2,490,368 | ||
| 40 | Mar 28, 2026 15:31 | 4,347 | 40,061,070 | 12,918,000 | 993,000 | 2,281,472 | ||
| 41 | Mar 28, 2026 15:31 | 4,347 | 36,590,882 | 12,917,000 | 993,000 | 2,281,472 | ||
| 42 | Mar 28, 2026 15:32 | 4,347 | 31,929,840 | 13,910,000 | 0 | 2,494,464 | ||
| 43 | Mar 28, 2026 15:30 | 4,347 | 40,937,104 | 12,916,000 | 993,000 | 2,494,464 | ||
| 44 | Mar 28, 2026 15:32 | 4,347 | 34,384,618 | 12,916,000 | 993,000 | 2,498,560 | ||
| 45 | Mar 28, 2026 15:32 | 4,347 | 36,135,187 | 11,923,000 | 1,987,000 | 2,498,560 | ||
| 46 | Mar 28, 2026 15:29 | 4,349 | 29,869,855 | 12,924,000 | 994,000 | 2,486,272 | ||
| 47 | Mar 28, 2026 15:33 | 4,350 | 33,626,942 | 11,931,000 | 1,988,000 | 2,490,368 | ||
| 48 | Mar 28, 2026 15:32 | 4,351 | 37,424,569 | 11,935,000 | 1,989,000 | 2,502,656 | ||
| 49 | Mar 28, 2026 15:29 | 4,351 | 29,272,972 | 12,930,000 | 994,000 | 2,281,472 | ||
| 50 | Mar 28, 2026 15:32 | 4,351 | 27,038,473 | 12,928,000 | 994,000 | 2,490,368 | ||
| 51 | Mar 28, 2026 15:30 | 4,351 | 30,759,963 | 12,929,000 | 994,000 | 2,498,560 | ||
| 52 | Mar 28, 2026 15:30 | 4,351 | 26,917,718 | 12,929,000 | 994,000 | 2,490,368 | ||
| 53 | Mar 28, 2026 15:29 | 4,353 | 37,245,659 | 12,934,000 | 994,000 | 2,494,464 | ||
| 54 | Mar 28, 2026 15:33 | 4,353 | 37,371,696 | 12,935,000 | 995,000 | 2,273,280 | ||
| 55 | Mar 28, 2026 15:31 | 4,353 | 29,463,090 | 12,935,000 | 995,000 | 2,494,464 | ||
| 56 | Mar 28, 2026 15:30 | 4,354 | 29,928,713 | 12,937,000 | 995,000 | 2,494,464 | ||
| 57 | Mar 28, 2026 15:32 | 4,354 | 28,922,887 | 11,944,000 | 1,990,000 | 2,494,464 | ||
| 58 | Mar 28, 2026 15:32 | 4,354 | 27,104,305 | 12,937,000 | 995,000 | 2,502,656 | ||
| 59 | Mar 28, 2026 15:29 | 4,354 | 32,196,366 | 12,939,000 | 995,000 | 2,490,368 | ||
| 60 | Mar 28, 2026 15:31 | 4,354 | 40,317,094 | 12,939,000 | 995,000 | 2,281,472 | ||
| 61 | Mar 28, 2026 15:30 | 4,355 | 33,464,124 | 12,942,000 | 995,000 | 2,281,472 | ||
| 62 | Mar 28, 2026 15:32 | 4,356 | 29,909,626 | 12,944,000 | 995,000 | 2,506,752 | ||
| 63 | Mar 28, 2026 15:31 | 4,356 | 36,210,935 | 12,945,000 | 995,000 | 2,506,752 | ||
| 64 | Mar 28, 2026 15:33 | 4,356 | 42,716,258 | 12,944,000 | 995,000 | 2,494,464 | ||
| 65 | Mar 28, 2026 15:31 | 4,358 | 30,926,711 | 12,950,000 | 996,000 | 2,281,472 | ||
| 66 | Mar 28, 2026 15:33 | 4,358 | 35,920,880 | 12,949,000 | 996,000 | 2,281,472 | ||
| 67 | Mar 28, 2026 15:31 | 4,359 | 29,389,250 | 12,952,000 | 996,000 | 2,494,464 | ||
| 68 | Mar 28, 2026 15:30 | 4,359 | 29,161,708 | 12,953,000 | 996,000 | 2,494,464 | ||
| 69 | Mar 28, 2026 15:30 | 4,359 | 38,412,303 | 12,954,000 | 996,000 | 2,494,464 | ||
| 70 | Mar 28, 2026 15:33 | 4,360 | 29,430,022 | 12,957,000 | 996,000 | 2,281,472 | ||
| 71 | Mar 28, 2026 15:30 | 4,360 | 29,061,711 | 12,957,000 | 996,000 | 2,494,464 | ||
| 72 | Mar 28, 2026 15:31 | 4,361 | 33,630,033 | 12,958,000 | 996,000 | 2,502,656 | ||
| 73 | Mar 28, 2026 15:33 | 4,363 | 34,047,344 | 12,963,000 | 997,000 | 2,281,472 | ||
| 74 | Mar 28, 2026 15:33 | 4,363 | 34,009,043 | 12,965,000 | 997,000 | 2,281,472 | ||
| 75 | Mar 28, 2026 15:33 | 4,363 | 35,348,004 | 11,968,000 | 1,994,000 | 2,535,424 | ||
| 76 | Mar 28, 2026 15:31 | 4,364 | 32,648,419 | 12,968,000 | 997,000 | 2,498,560 | ||
| 77 | Mar 28, 2026 15:32 | 4,364 | 35,824,176 | 12,969,000 | 997,000 | 2,494,464 | ||
| 78 | Mar 28, 2026 15:29 | 4,365 | 28,732,877 | 11,972,000 | 1,995,000 | 2,486,272 | ||
| 79 | Mar 28, 2026 15:33 | 4,366 | 27,011,070 | 12,974,000 | 998,000 | 2,281,472 | ||
| 80 | Mar 28, 2026 15:32 | 4,368 | 31,680,697 | 12,981,000 | 998,000 | 2,494,464 | ||
| 81 | Mar 28, 2026 15:32 | 4,369 | 32,109,485 | 12,984,000 | 998,000 | 2,281,472 | ||
| 82 | Mar 28, 2026 15:32 | 4,370 | 30,645,000 | 12,986,000 | 998,000 | 2,281,472 | ||
| 83 | Mar 28, 2026 15:33 | 4,371 | 29,523,886 | 12,987,000 | 999,000 | 2,281,472 | ||
| 84 | Mar 28, 2026 15:30 | 4,371 | 39,959,620 | 12,989,000 | 999,000 | 2,498,560 | ||
| 85 | Mar 28, 2026 15:33 | 4,372 | 29,306,597 | 12,990,000 | 999,000 | 2,502,656 | ||
| 86 | Mar 28, 2026 15:33 | 4,378 | 33,251,072 | 13,010,000 | 1,000,000 | 2,281,472 | ||
| 87 | Mar 28, 2026 15:33 | 4,379 | 35,773,025 | 13,012,000 | 1,000,000 | 2,281,472 | ||
| 88 | Mar 28, 2026 15:30 | 4,386 | 30,703,674 | 12,030,000 | 2,005,000 | 2,535,424 | ||
| 89 | Mar 28, 2026 15:33 | 4,390 | 34,845,402 | 13,044,000 | 1,003,000 | 2,281,472 | ||
| 90 | Mar 28, 2026 15:32 | 4,402 | 34,194,632 | 12,073,000 | 2,012,000 | 2,281,472 |