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 19:58 | 4,324 | 25,942,453 | 12,848,000 | 988,000 | 2,281,472 | ||
| 2 | Mar 28, 2026 19:58 | 4,332 | 39,093,304 | 12,871,000 | 990,000 | 2,498,560 | ||
| 3 | Mar 28, 2026 19:58 | 4,334 | 29,011,465 | 13,869,000 | 0 | 2,490,368 | ||
| 4 | Mar 28, 2026 19:57 | 4,337 | 30,163,743 | 12,888,000 | 991,000 | 2,281,472 | ||
| 5 | Mar 28, 2026 19:56 | 4,338 | 43,799,740 | 12,890,000 | 991,000 | 2,494,464 | ||
| 6 | Mar 28, 2026 19:57 | 4,339 | 26,408,876 | 12,894,000 | 991,000 | 2,498,560 | ||
| 7 | Mar 28, 2026 19:58 | 4,341 | 43,526,921 | 12,900,000 | 992,000 | 2,486,272 | ||
| 8 | Mar 28, 2026 19:57 | 4,341 | 31,436,365 | 12,900,000 | 992,000 | 2,502,656 | ||
| 9 | Mar 28, 2026 19:58 | 4,342 | 40,747,613 | 12,901,000 | 992,000 | 2,498,560 | ||
| 10 | Mar 28, 2026 19:56 | 4,342 | 29,920,829 | 11,910,000 | 1,985,000 | 2,494,464 | ||
| 11 | Mar 28, 2026 19:57 | 4,343 | 29,196,821 | 13,897,000 | 0 | 2,490,368 | ||
| 12 | Mar 28, 2026 19:56 | 4,343 | 27,731,961 | 12,906,000 | 992,000 | 2,490,368 | ||
| 13 | Mar 28, 2026 19:58 | 4,345 | 36,079,066 | 12,910,000 | 993,000 | 2,498,560 | ||
| 14 | Mar 28, 2026 19:55 | 4,345 | 29,478,488 | 12,911,000 | 993,000 | 2,498,560 | ||
| 15 | Mar 28, 2026 19:55 | 4,346 | 40,973,556 | 11,921,000 | 1,986,000 | 2,498,560 | ||
| 16 | Mar 28, 2026 19:55 | 4,347 | 30,940,179 | 12,917,000 | 993,000 | 2,494,464 | ||
| 17 | Mar 28, 2026 19:58 | 4,348 | 39,460,431 | 13,914,000 | 0 | 2,494,464 | ||
| 18 | Mar 28, 2026 19:56 | 4,349 | 29,227,096 | 12,922,000 | 994,000 | 2,498,560 | ||
| 19 | Mar 28, 2026 19:56 | 4,349 | 33,604,050 | 12,922,000 | 994,000 | 2,281,472 | ||
| 20 | Mar 28, 2026 19:56 | 4,349 | 27,475,288 | 13,917,000 | 0 | 2,281,472 | ||
| 21 | Mar 28, 2026 19:57 | 4,349 | 34,647,414 | 12,924,000 | 994,000 | 2,498,560 | ||
| 22 | Mar 28, 2026 19:58 | 4,349 | 31,108,004 | 12,924,000 | 994,000 | 2,498,560 | ||
| 23 | Mar 28, 2026 19:55 | 4,350 | 30,536,537 | 12,925,000 | 994,000 | 2,502,656 | ||
| 24 | Mar 28, 2026 19:57 | 4,351 | 29,411,935 | 11,934,000 | 1,989,000 | 2,281,472 | ||
| 25 | Mar 28, 2026 19:56 | 4,351 | 40,101,617 | 13,922,000 | 0 | 2,281,472 | ||
| 26 | Mar 28, 2026 19:56 | 4,351 | 38,728,490 | 13,923,000 | 0 | 2,498,560 | ||
| 27 | Mar 28, 2026 19:56 | 4,352 | 34,929,455 | 12,933,000 | 994,000 | 2,502,656 | ||
| 28 | Mar 28, 2026 19:58 | 4,353 | 29,672,502 | 12,936,000 | 995,000 | 2,281,472 | ||
| 29 | Mar 28, 2026 19:58 | 4,354 | 36,392,240 | 11,944,000 | 1,990,000 | 2,490,368 | ||
| 30 | Mar 28, 2026 19:55 | 4,354 | 33,007,402 | 11,942,000 | 1,990,000 | 2,281,472 | ||
| 31 | Mar 28, 2026 19:55 | 4,354 | 31,115,840 | 12,937,000 | 995,000 | 2,281,472 | ||
| 32 | Mar 28, 2026 19:57 | 4,355 | 29,770,676 | 12,940,000 | 995,000 | 2,490,368 | ||
| 33 | Mar 28, 2026 19:55 | 4,355 | 39,251,764 | 12,940,000 | 995,000 | 2,498,560 | ||
| 34 | Mar 28, 2026 19:56 | 4,355 | 38,328,141 | 12,942,000 | 995,000 | 2,494,464 | ||
| 35 | Mar 28, 2026 19:57 | 4,356 | 36,453,899 | 11,948,000 | 1,991,000 | 2,486,272 | ||
| 36 | Mar 28, 2026 19:56 | 4,357 | 31,636,570 | 12,947,000 | 995,000 | 2,490,368 | ||
| 37 | Mar 28, 2026 19:55 | 4,358 | 32,839,484 | 12,950,000 | 996,000 | 2,498,560 | ||
| 38 | Mar 28, 2026 19:56 | 4,358 | 37,424,500 | 11,955,000 | 1,992,000 | 2,486,272 | ||
| 39 | Mar 28, 2026 19:55 | 4,359 | 27,383,100 | 12,952,000 | 996,000 | 2,498,560 | ||
| 40 | Mar 28, 2026 19:56 | 4,360 | 25,236,627 | 12,955,000 | 996,000 | 2,539,520 | ||
| 41 | Mar 28, 2026 19:55 | 4,360 | 29,919,873 | 12,957,000 | 996,000 | 2,281,472 | ||
| 42 | Mar 28, 2026 19:58 | 4,360 | 33,179,035 | 11,958,000 | 1,993,000 | 2,498,560 | ||
| 43 | Mar 28, 2026 19:57 | 4,360 | 33,756,620 | 11,958,000 | 1,993,000 | 2,498,560 | ||
| 44 | Mar 28, 2026 19:56 | 4,361 | 29,879,770 | 11,961,000 | 1,993,000 | 2,498,560 | ||
| 45 | Mar 28, 2026 19:57 | 4,361 | 34,801,714 | 12,960,000 | 996,000 | 2,490,368 | ||
| 46 | Mar 28, 2026 19:57 | 4,362 | 35,602,614 | 12,961,000 | 997,000 | 2,498,560 | ||
| 47 | Mar 28, 2026 19:58 | 4,362 | 29,174,089 | 12,962,000 | 997,000 | 2,498,560 | ||
| 48 | Mar 28, 2026 19:56 | 4,364 | 41,889,407 | 12,967,000 | 997,000 | 2,494,464 | ||
| 49 | Mar 28, 2026 19:58 | 4,364 | 36,075,986 | 11,971,000 | 1,995,000 | 2,490,368 | ||
| 50 | Mar 28, 2026 19:57 | 4,364 | 34,901,564 | 12,967,000 | 997,000 | 2,281,472 | ||
| 51 | Mar 28, 2026 19:57 | 4,365 | 28,471,487 | 11,973,000 | 1,995,000 | 2,281,472 | ||
| 52 | Mar 28, 2026 19:58 | 4,365 | 38,166,757 | 11,972,000 | 1,995,000 | 2,494,464 | ||
| 53 | Mar 28, 2026 19:58 | 4,366 | 27,778,646 | 12,974,000 | 998,000 | 2,494,464 | ||
| 54 | Mar 28, 2026 19:57 | 4,367 | 40,828,890 | 11,977,000 | 1,996,000 | 2,494,464 | ||
| 55 | Mar 28, 2026 19:56 | 4,368 | 32,528,050 | 12,981,000 | 998,000 | 2,281,472 | ||
| 56 | Mar 28, 2026 19:58 | 4,368 | 31,892,715 | 12,979,000 | 998,000 | 2,490,368 | ||
| 57 | Mar 28, 2026 19:57 | 4,368 | 32,440,490 | 12,978,000 | 998,000 | 2,494,464 | ||
| 58 | Mar 28, 2026 19:55 | 4,368 | 27,949,961 | 12,978,000 | 998,000 | 2,281,472 | ||
| 59 | Mar 28, 2026 19:57 | 4,369 | 32,129,034 | 12,982,000 | 998,000 | 2,498,560 | ||
| 60 | Mar 28, 2026 19:58 | 4,369 | 38,008,515 | 11,984,000 | 1,997,000 | 2,490,368 | ||
| 61 | Mar 28, 2026 19:56 | 4,369 | 35,400,513 | 11,983,000 | 1,997,000 | 2,498,560 | ||
| 62 | Mar 28, 2026 19:57 | 4,369 | 34,082,109 | 11,983,000 | 1,997,000 | 2,490,368 | ||
| 63 | Mar 28, 2026 19:57 | 4,370 | 37,621,634 | 12,986,000 | 998,000 | 2,490,368 | ||
| 64 | Mar 28, 2026 19:55 | 4,370 | 30,167,915 | 11,987,000 | 1,997,000 | 2,490,368 | ||
| 65 | Mar 28, 2026 19:57 | 4,371 | 31,942,586 | 12,988,000 | 999,000 | 2,494,464 | ||
| 66 | Mar 28, 2026 19:55 | 4,372 | 30,252,915 | 11,992,000 | 1,998,000 | 2,494,464 | ||
| 67 | Mar 28, 2026 19:55 | 4,372 | 41,592,167 | 12,991,000 | 999,000 | 2,281,472 | ||
| 68 | Mar 28, 2026 19:57 | 4,372 | 28,649,725 | 12,990,000 | 999,000 | 2,281,472 | ||
| 69 | Mar 28, 2026 19:57 | 4,375 | 32,538,942 | 13,001,000 | 1,000,000 | 2,498,560 | ||
| 70 | Mar 28, 2026 19:55 | 4,376 | 34,357,991 | 12,002,000 | 2,000,000 | 2,281,472 | ||
| 71 | Mar 28, 2026 19:56 | 4,376 | 32,030,367 | 13,002,000 | 1,000,000 | 2,281,472 | ||
| 72 | Mar 28, 2026 19:58 | 4,378 | 37,971,115 | 13,011,000 | 1,000,000 | 2,494,464 | ||
| 73 | Mar 28, 2026 19:57 | 4,379 | 32,264,535 | 13,012,000 | 1,000,000 | 2,490,368 | ||
| 74 | Mar 28, 2026 19:57 | 4,380 | 30,375,099 | 14,017,000 | 0 | 2,281,472 | ||
| 75 | Mar 28, 2026 19:58 | 4,381 | 33,497,054 | 13,018,000 | 1,001,000 | 2,502,656 | ||
| 76 | Mar 28, 2026 19:58 | 4,384 | 25,807,142 | 13,027,000 | 1,002,000 | 2,498,560 | ||
| 77 | Mar 28, 2026 19:56 | 4,384 | 30,753,838 | 12,025,000 | 2,004,000 | 2,502,656 | ||
| 78 | Mar 28, 2026 19:58 | 4,385 | 28,543,652 | 12,028,000 | 2,004,000 | 2,494,464 | ||
| 79 | Mar 28, 2026 19:55 | 4,390 | 29,375,122 | 13,045,000 | 1,003,000 | 2,498,560 | ||
| 80 | Mar 28, 2026 19:57 | 4,392 | 42,745,305 | 13,051,000 | 1,003,000 | 2,281,472 | ||
| 81 | Mar 28, 2026 19:56 | 4,392 | 38,456,723 | 12,046,000 | 2,007,000 | 2,281,472 | ||
| 82 | Mar 28, 2026 19:56 | 4,397 | 28,921,488 | 13,065,000 | 1,005,000 | 2,281,472 | ||
| 83 | Mar 28, 2026 19:56 | 4,398 | 36,639,419 | 12,063,000 | 2,010,000 | 2,494,464 | ||
| 84 | Mar 28, 2026 19:55 | 4,401 | 34,569,574 | 12,071,000 | 2,011,000 | 2,494,464 | ||
| 85 | Mar 28, 2026 19:56 | 4,406 | 28,464,903 | 12,084,000 | 2,014,000 | 2,494,464 | ||
| 86 | Mar 28, 2026 19:55 | 4,441 | 39,846,671 | 13,195,000 | 1,015,000 | 2,494,464 | ||
| 87 | Mar 28, 2026 19:55 | 4,453 | 37,817,743 | 12,213,000 | 2,035,000 | 2,502,656 | ||
| 88 | Mar 28, 2026 19:55 | 4,477 | 28,964,308 | 12,280,000 | 2,046,000 | 2,494,464 | ||
| 89 | Mar 28, 2026 19:55 | 4,516 | 29,120,031 | 14,451,000 | 0 | 2,281,472 | ||
| 90 | Mar 28, 2026 19:56 | 4,661 | 34,753,789 | 13,922,000 | 994,000 | 2,281,472 |