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 20:42 | 4,335 | 30,798,739 | 13,871,000 | 0 | 2,490,368 | ||
| 2 | Mar 28, 2026 20:41 | 4,336 | 39,609,748 | 13,874,000 | 0 | 2,281,472 | ||
| 3 | Mar 28, 2026 20:41 | 4,339 | 42,116,663 | 13,885,000 | 0 | 2,490,368 | ||
| 4 | Mar 28, 2026 20:39 | 4,339 | 28,653,409 | 12,893,000 | 991,000 | 2,494,464 | ||
| 5 | Mar 28, 2026 20:42 | 4,339 | 29,157,717 | 12,895,000 | 991,000 | 2,486,272 | ||
| 6 | Mar 28, 2026 20:39 | 4,339 | 31,330,417 | 11,902,000 | 1,983,000 | 2,494,464 | ||
| 7 | Mar 28, 2026 20:42 | 4,340 | 43,427,217 | 12,897,000 | 992,000 | 2,281,472 | ||
| 8 | Mar 28, 2026 20:40 | 4,340 | 30,162,829 | 11,904,000 | 1,984,000 | 2,490,368 | ||
| 9 | Mar 28, 2026 20:41 | 4,341 | 31,729,070 | 12,900,000 | 992,000 | 2,490,368 | ||
| 10 | Mar 28, 2026 20:42 | 4,342 | 43,009,489 | 12,902,000 | 992,000 | 2,498,560 | ||
| 11 | Mar 28, 2026 20:41 | 4,343 | 27,851,857 | 13,897,000 | 0 | 2,494,464 | ||
| 12 | Mar 28, 2026 20:39 | 4,343 | 43,695,486 | 12,907,000 | 992,000 | 2,281,472 | ||
| 13 | Mar 28, 2026 20:41 | 4,344 | 30,481,216 | 11,916,000 | 1,986,000 | 2,494,464 | ||
| 14 | Mar 28, 2026 20:41 | 4,344 | 28,817,136 | 12,909,000 | 993,000 | 2,281,472 | ||
| 15 | Mar 28, 2026 20:39 | 4,346 | 33,151,784 | 12,914,000 | 993,000 | 2,482,176 | ||
| 16 | Mar 28, 2026 20:42 | 4,346 | 30,370,556 | 12,914,000 | 993,000 | 2,494,464 | ||
| 17 | Mar 28, 2026 20:39 | 4,348 | 47,924,127 | 13,912,000 | 0 | 2,281,472 | ||
| 18 | Mar 28, 2026 20:42 | 4,348 | 30,248,858 | 13,913,000 | 0 | 2,490,368 | ||
| 19 | Mar 28, 2026 20:39 | 4,348 | 29,571,589 | 12,920,000 | 993,000 | 2,498,560 | ||
| 20 | Mar 28, 2026 20:40 | 4,348 | 31,062,260 | 12,919,000 | 993,000 | 2,494,464 | ||
| 21 | Mar 28, 2026 20:42 | 4,349 | 38,366,834 | 12,922,000 | 994,000 | 2,281,472 | ||
| 22 | Mar 28, 2026 20:40 | 4,350 | 41,929,285 | 11,931,000 | 1,988,000 | 2,490,368 | ||
| 23 | Mar 28, 2026 20:40 | 4,350 | 38,502,712 | 11,931,000 | 1,988,000 | 2,502,656 | ||
| 24 | Mar 28, 2026 20:42 | 4,350 | 31,719,215 | 12,927,000 | 994,000 | 2,498,560 | ||
| 25 | Mar 28, 2026 20:39 | 4,350 | 34,442,485 | 12,849,000 | 1,070,000 | 2,281,472 | ||
| 26 | Mar 28, 2026 20:41 | 4,351 | 27,040,582 | 12,928,000 | 994,000 | 2,281,472 | ||
| 27 | Mar 28, 2026 20:42 | 4,352 | 30,788,928 | 12,933,000 | 994,000 | 2,281,472 | ||
| 28 | Mar 28, 2026 20:42 | 4,352 | 33,822,105 | 12,931,000 | 994,000 | 2,281,472 | ||
| 29 | Mar 28, 2026 20:41 | 4,352 | 37,164,370 | 12,931,000 | 994,000 | 2,494,464 | ||
| 30 | Mar 28, 2026 20:41 | 4,352 | 29,544,639 | 13,925,000 | 0 | 2,281,472 | ||
| 31 | Mar 28, 2026 20:39 | 4,352 | 33,133,670 | 12,933,000 | 994,000 | 2,281,472 | ||
| 32 | Mar 28, 2026 20:42 | 4,353 | 33,825,508 | 13,929,000 | 0 | 2,494,464 | ||
| 33 | Mar 28, 2026 20:41 | 4,353 | 33,183,714 | 13,928,000 | 0 | 2,498,560 | ||
| 34 | Mar 28, 2026 20:39 | 4,353 | 38,116,314 | 11,940,000 | 1,990,000 | 2,494,464 | ||
| 35 | Mar 28, 2026 20:42 | 4,353 | 27,373,018 | 12,936,000 | 995,000 | 2,535,424 | ||
| 36 | Mar 28, 2026 20:41 | 4,353 | 29,376,061 | 12,934,000 | 994,000 | 2,494,464 | ||
| 37 | Mar 28, 2026 20:42 | 4,353 | 29,239,856 | 11,939,000 | 1,989,000 | 2,490,368 | ||
| 38 | Mar 28, 2026 20:41 | 4,354 | 26,258,721 | 12,938,000 | 995,000 | 2,502,656 | ||
| 39 | Mar 28, 2026 20:42 | 4,354 | 35,975,070 | 12,938,000 | 995,000 | 2,281,472 | ||
| 40 | Mar 28, 2026 20:41 | 4,355 | 31,921,847 | 12,865,000 | 1,072,000 | 2,494,464 | ||
| 41 | Mar 28, 2026 20:41 | 4,356 | 28,867,850 | 12,945,000 | 995,000 | 2,498,560 | ||
| 42 | Mar 28, 2026 20:40 | 4,356 | 37,749,863 | 12,945,000 | 995,000 | 2,281,472 | ||
| 43 | Mar 28, 2026 20:42 | 4,357 | 33,860,755 | 11,951,000 | 1,991,000 | 2,490,368 | ||
| 44 | Mar 28, 2026 20:39 | 4,358 | 30,261,396 | 12,951,000 | 996,000 | 2,490,368 | ||
| 45 | Mar 28, 2026 20:42 | 4,358 | 42,141,144 | 12,950,000 | 996,000 | 2,490,368 | ||
| 46 | Mar 28, 2026 20:40 | 4,358 | 31,728,009 | 12,951,000 | 996,000 | 2,277,376 | ||
| 47 | Mar 28, 2026 20:42 | 4,359 | 31,633,856 | 12,953,000 | 996,000 | 2,506,752 | ||
| 48 | Mar 28, 2026 20:41 | 4,360 | 35,788,374 | 12,955,000 | 996,000 | 2,502,656 | ||
| 49 | Mar 28, 2026 20:40 | 4,360 | 31,542,648 | 13,952,000 | 0 | 2,494,464 | ||
| 50 | Mar 28, 2026 20:40 | 4,360 | 32,173,471 | 12,957,000 | 996,000 | 2,490,368 | ||
| 51 | Mar 28, 2026 20:41 | 4,360 | 30,492,363 | 12,955,000 | 996,000 | 2,498,560 | ||
| 52 | Mar 28, 2026 20:41 | 4,360 | 32,538,048 | 12,957,000 | 996,000 | 2,502,656 | ||
| 53 | Mar 28, 2026 20:40 | 4,361 | 27,922,481 | 12,960,000 | 996,000 | 2,498,560 | ||
| 54 | Mar 28, 2026 20:42 | 4,363 | 30,338,664 | 12,965,000 | 997,000 | 2,494,464 | ||
| 55 | Mar 28, 2026 20:40 | 4,364 | 36,589,457 | 12,969,000 | 997,000 | 2,502,656 | ||
| 56 | Mar 28, 2026 20:40 | 4,364 | 42,086,799 | 11,971,000 | 1,995,000 | 2,498,560 | ||
| 57 | Mar 28, 2026 20:40 | 4,365 | 32,409,955 | 12,972,000 | 997,000 | 2,498,560 | ||
| 58 | Mar 28, 2026 20:39 | 4,366 | 35,711,445 | 11,976,000 | 1,996,000 | 2,494,464 | ||
| 59 | Mar 28, 2026 20:39 | 4,367 | 31,094,793 | 12,977,000 | 998,000 | 2,281,472 | ||
| 60 | Mar 28, 2026 20:39 | 4,367 | 31,236,893 | 12,976,000 | 998,000 | 2,281,472 | ||
| 61 | Mar 28, 2026 20:42 | 4,367 | 30,692,811 | 12,975,000 | 998,000 | 2,498,560 | ||
| 62 | Mar 28, 2026 20:41 | 4,367 | 32,975,638 | 12,977,000 | 998,000 | 2,281,472 | ||
| 63 | Mar 28, 2026 20:41 | 4,367 | 41,387,437 | 11,979,000 | 1,996,000 | 2,494,464 | ||
| 64 | Mar 28, 2026 20:40 | 4,370 | 36,620,413 | 12,985,000 | 998,000 | 2,498,560 | ||
| 65 | Mar 28, 2026 20:40 | 4,371 | 31,508,181 | 12,988,000 | 999,000 | 2,494,464 | ||
| 66 | Mar 28, 2026 20:41 | 4,371 | 29,444,385 | 12,989,000 | 999,000 | 2,494,464 | ||
| 67 | Mar 28, 2026 20:40 | 4,372 | 35,271,232 | 12,990,000 | 999,000 | 2,281,472 | ||
| 68 | Mar 28, 2026 20:42 | 4,373 | 29,561,456 | 11,995,000 | 1,999,000 | 2,277,376 | ||
| 69 | Mar 28, 2026 20:40 | 4,373 | 36,102,324 | 12,993,000 | 999,000 | 2,490,368 | ||
| 70 | Mar 28, 2026 20:42 | 4,374 | 32,940,390 | 12,997,000 | 999,000 | 2,281,472 | ||
| 71 | Mar 28, 2026 20:41 | 4,376 | 38,662,745 | 13,004,000 | 1,000,000 | 2,494,464 | ||
| 72 | Mar 28, 2026 20:41 | 4,376 | 38,455,155 | 13,004,000 | 1,000,000 | 2,494,464 | ||
| 73 | Mar 28, 2026 20:39 | 4,376 | 27,748,681 | 13,004,000 | 1,000,000 | 2,539,520 | ||
| 74 | Mar 28, 2026 20:40 | 4,378 | 32,143,124 | 13,009,000 | 1,000,000 | 2,281,472 | ||
| 75 | Mar 28, 2026 20:41 | 4,380 | 32,104,355 | 13,015,000 | 1,001,000 | 2,281,472 | ||
| 76 | Mar 28, 2026 20:40 | 4,382 | 31,766,707 | 12,018,000 | 2,003,000 | 2,277,376 | ||
| 77 | Mar 28, 2026 20:40 | 4,385 | 30,580,145 | 12,029,000 | 2,004,000 | 2,498,560 | ||
| 78 | Mar 28, 2026 20:42 | 4,385 | 38,534,822 | 12,029,000 | 2,004,000 | 2,281,472 | ||
| 79 | Mar 28, 2026 20:40 | 4,385 | 31,120,393 | 12,028,000 | 2,004,000 | 2,502,656 | ||
| 80 | Mar 28, 2026 20:39 | 4,386 | 29,088,195 | 12,031,000 | 2,005,000 | 2,498,560 | ||
| 81 | Mar 28, 2026 20:40 | 4,391 | 33,206,450 | 12,045,000 | 2,007,000 | 2,498,560 | ||
| 82 | Mar 28, 2026 20:42 | 4,393 | 33,998,050 | 12,048,000 | 2,008,000 | 2,281,472 | ||
| 83 | Mar 28, 2026 20:41 | 4,397 | 31,900,066 | 12,060,000 | 2,010,000 | 2,494,464 | ||
| 84 | Mar 28, 2026 20:42 | 4,397 | 39,527,852 | 13,066,000 | 1,005,000 | 2,281,472 | ||
| 85 | Mar 28, 2026 20:39 | 4,399 | 28,123,915 | 12,067,000 | 2,011,000 | 2,535,424 | ||
| 86 | Mar 28, 2026 20:39 | 4,402 | 33,009,212 | 13,080,000 | 1,006,000 | 2,498,560 | ||
| 87 | Mar 28, 2026 20:39 | 4,455 | 42,760,667 | 12,219,000 | 2,036,000 | 2,490,368 | ||
| 88 | Mar 28, 2026 20:40 | 4,518 | 40,572,351 | 13,426,000 | 1,032,000 | 2,502,656 | ||
| 89 | Mar 28, 2026 20:40 | 4,863 | 39,193,343 | 13,618,000 | 1,945,000 | 2,269,184 | ||
| 90 | Mar 28, 2026 20:40 | 4,905 | 44,471,635 | 14,650,000 | 1,046,000 | 2,273,280 |