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 18:17 | 4,328 | 38,428,452 | 12,861,000 | 989,000 | 2,498,560 | ||
| 2 | Mar 28, 2026 18:19 | 4,332 | 33,831,864 | 12,872,000 | 990,000 | 2,498,560 | ||
| 3 | Mar 28, 2026 18:20 | 4,333 | 30,318,399 | 12,874,000 | 990,000 | 2,281,472 | ||
| 4 | Mar 28, 2026 18:18 | 4,335 | 37,242,255 | 12,882,000 | 990,000 | 2,494,464 | ||
| 5 | Mar 28, 2026 18:17 | 4,335 | 31,998,187 | 12,882,000 | 990,000 | 2,494,464 | ||
| 6 | Mar 28, 2026 18:18 | 4,336 | 29,171,504 | 13,875,000 | 0 | 2,494,464 | ||
| 7 | Mar 28, 2026 18:16 | 4,336 | 25,390,461 | 13,875,000 | 0 | 2,498,560 | ||
| 8 | Mar 28, 2026 18:16 | 4,336 | 43,506,315 | 12,884,000 | 991,000 | 2,494,464 | ||
| 9 | Mar 28, 2026 18:18 | 4,338 | 34,661,066 | 12,890,000 | 991,000 | 2,498,560 | ||
| 10 | Mar 28, 2026 18:20 | 4,339 | 45,598,085 | 12,893,000 | 991,000 | 2,494,464 | ||
| 11 | Mar 28, 2026 18:17 | 4,340 | 42,527,223 | 12,896,000 | 992,000 | 2,494,464 | ||
| 12 | Mar 28, 2026 18:16 | 4,341 | 34,815,180 | 12,900,000 | 992,000 | 2,281,472 | ||
| 13 | Mar 28, 2026 18:17 | 4,342 | 35,826,286 | 12,903,000 | 992,000 | 2,502,656 | ||
| 14 | Mar 28, 2026 18:18 | 4,342 | 29,795,789 | 12,902,000 | 992,000 | 2,494,464 | ||
| 15 | Mar 28, 2026 18:19 | 4,342 | 27,404,532 | 12,903,000 | 992,000 | 2,281,472 | ||
| 16 | Mar 28, 2026 18:19 | 4,342 | 28,833,011 | 12,902,000 | 992,000 | 2,281,472 | ||
| 17 | Mar 28, 2026 18:19 | 4,343 | 28,371,055 | 12,828,000 | 1,069,000 | 2,498,560 | ||
| 18 | Mar 28, 2026 18:17 | 4,343 | 29,327,954 | 12,907,000 | 992,000 | 2,502,656 | ||
| 19 | Mar 28, 2026 18:16 | 4,343 | 27,229,941 | 12,907,000 | 992,000 | 2,490,368 | ||
| 20 | Mar 28, 2026 18:16 | 4,343 | 26,098,514 | 12,905,000 | 992,000 | 2,494,464 | ||
| 21 | Mar 28, 2026 18:16 | 4,344 | 32,854,849 | 13,902,000 | 0 | 2,490,368 | ||
| 22 | Mar 28, 2026 18:20 | 4,344 | 29,166,254 | 12,909,000 | 993,000 | 2,498,560 | ||
| 23 | Mar 28, 2026 18:18 | 4,344 | 28,050,439 | 12,909,000 | 993,000 | 2,281,472 | ||
| 24 | Mar 28, 2026 18:17 | 4,345 | 43,690,705 | 12,910,000 | 993,000 | 2,498,560 | ||
| 25 | Mar 28, 2026 18:18 | 4,345 | 37,470,696 | 12,910,000 | 993,000 | 2,486,272 | ||
| 26 | Mar 28, 2026 18:18 | 4,346 | 28,643,413 | 12,913,000 | 993,000 | 2,281,472 | ||
| 27 | Mar 28, 2026 18:17 | 4,347 | 26,031,198 | 13,910,000 | 0 | 2,486,272 | ||
| 28 | Mar 28, 2026 18:19 | 4,348 | 29,477,506 | 13,913,000 | 0 | 2,494,464 | ||
| 29 | Mar 28, 2026 18:19 | 4,348 | 28,723,713 | 12,919,000 | 993,000 | 2,498,560 | ||
| 30 | Mar 28, 2026 18:17 | 4,349 | 37,468,533 | 12,924,000 | 994,000 | 2,281,472 | ||
| 31 | Mar 28, 2026 18:18 | 4,349 | 38,191,750 | 12,924,000 | 994,000 | 2,494,464 | ||
| 32 | Mar 28, 2026 18:20 | 4,350 | 28,801,384 | 12,925,000 | 994,000 | 2,498,560 | ||
| 33 | Mar 28, 2026 18:17 | 4,350 | 26,111,882 | 12,926,000 | 994,000 | 2,490,368 | ||
| 34 | Mar 28, 2026 18:19 | 4,350 | 31,466,282 | 13,919,000 | 0 | 2,539,520 | ||
| 35 | Mar 28, 2026 18:17 | 4,351 | 37,686,363 | 12,929,000 | 994,000 | 2,490,368 | ||
| 36 | Mar 28, 2026 18:18 | 4,353 | 33,261,621 | 11,940,000 | 1,990,000 | 2,486,272 | ||
| 37 | Mar 28, 2026 18:19 | 4,354 | 30,184,608 | 12,939,000 | 995,000 | 2,502,656 | ||
| 38 | Mar 28, 2026 18:20 | 4,354 | 29,651,322 | 12,938,000 | 995,000 | 2,281,472 | ||
| 39 | Mar 28, 2026 18:16 | 4,354 | 25,770,012 | 13,933,000 | 0 | 2,498,560 | ||
| 40 | Mar 28, 2026 18:17 | 4,354 | 36,414,307 | 12,939,000 | 995,000 | 2,535,424 | ||
| 41 | Mar 28, 2026 18:18 | 4,354 | 27,284,384 | 12,937,000 | 995,000 | 2,281,472 | ||
| 42 | Mar 28, 2026 18:20 | 4,355 | 32,002,661 | 12,941,000 | 995,000 | 2,498,560 | ||
| 43 | Mar 28, 2026 18:19 | 4,355 | 30,936,139 | 12,942,000 | 995,000 | 2,494,464 | ||
| 44 | Mar 28, 2026 18:17 | 4,356 | 31,379,492 | 11,949,000 | 1,991,000 | 2,502,656 | ||
| 45 | Mar 28, 2026 18:18 | 4,356 | 30,151,714 | 12,943,000 | 995,000 | 2,486,272 | ||
| 46 | Mar 28, 2026 18:17 | 4,356 | 29,547,419 | 12,944,000 | 995,000 | 2,281,472 | ||
| 47 | Mar 28, 2026 18:19 | 4,358 | 30,065,839 | 11,952,000 | 1,992,000 | 2,281,472 | ||
| 48 | Mar 28, 2026 18:19 | 4,358 | 38,656,447 | 12,949,000 | 996,000 | 2,281,472 | ||
| 49 | Mar 28, 2026 18:19 | 4,358 | 35,558,039 | 12,949,000 | 996,000 | 2,281,472 | ||
| 50 | Mar 28, 2026 18:18 | 4,358 | 27,188,924 | 12,951,000 | 996,000 | 2,281,472 | ||
| 51 | Mar 28, 2026 18:18 | 4,358 | 37,445,014 | 11,953,000 | 1,992,000 | 2,494,464 | ||
| 52 | Mar 28, 2026 18:19 | 4,358 | 27,697,862 | 12,948,000 | 996,000 | 2,502,656 | ||
| 53 | Mar 28, 2026 18:18 | 4,358 | 31,313,178 | 11,954,000 | 1,992,000 | 2,281,472 | ||
| 54 | Mar 28, 2026 18:18 | 4,358 | 36,625,319 | 11,955,000 | 1,992,000 | 2,490,368 | ||
| 55 | Mar 28, 2026 18:17 | 4,359 | 30,969,377 | 12,954,000 | 996,000 | 2,281,472 | ||
| 56 | Mar 28, 2026 18:18 | 4,359 | 34,376,949 | 12,952,000 | 996,000 | 2,490,368 | ||
| 57 | Mar 28, 2026 18:17 | 4,360 | 29,945,547 | 11,960,000 | 1,993,000 | 2,494,464 | ||
| 58 | Mar 28, 2026 18:17 | 4,360 | 27,137,153 | 11,958,000 | 1,993,000 | 2,502,656 | ||
| 59 | Mar 28, 2026 18:17 | 4,360 | 28,059,366 | 12,956,000 | 996,000 | 2,494,464 | ||
| 60 | Mar 28, 2026 18:16 | 4,362 | 33,974,257 | 12,962,000 | 997,000 | 2,498,560 | ||
| 61 | Mar 28, 2026 18:19 | 4,363 | 34,827,451 | 12,966,000 | 997,000 | 2,281,472 | ||
| 62 | Mar 28, 2026 18:17 | 4,363 | 30,726,195 | 12,965,000 | 997,000 | 2,490,368 | ||
| 63 | Mar 28, 2026 18:18 | 4,363 | 31,166,353 | 12,965,000 | 997,000 | 2,494,464 | ||
| 64 | Mar 28, 2026 18:18 | 4,366 | 24,563,942 | 12,973,000 | 997,000 | 2,490,368 | ||
| 65 | Mar 28, 2026 18:19 | 4,367 | 30,171,524 | 11,978,000 | 1,996,000 | 2,494,464 | ||
| 66 | Mar 28, 2026 18:19 | 4,367 | 26,253,323 | 12,977,000 | 998,000 | 2,494,464 | ||
| 67 | Mar 28, 2026 18:16 | 4,367 | 35,480,744 | 11,979,000 | 1,996,000 | 2,281,472 | ||
| 68 | Mar 28, 2026 18:19 | 4,368 | 32,917,665 | 11,980,000 | 1,996,000 | 2,502,656 | ||
| 69 | Mar 28, 2026 18:19 | 4,368 | 41,402,302 | 11,982,000 | 1,997,000 | 2,490,368 | ||
| 70 | Mar 28, 2026 18:19 | 4,369 | 42,651,990 | 11,983,000 | 1,997,000 | 2,277,376 | ||
| 71 | Mar 28, 2026 18:19 | 4,370 | 35,006,630 | 11,986,000 | 1,997,000 | 2,482,176 | ||
| 72 | Mar 28, 2026 18:19 | 4,373 | 40,331,068 | 11,994,000 | 1,999,000 | 2,502,656 | ||
| 73 | Mar 28, 2026 18:18 | 4,374 | 29,905,304 | 11,998,000 | 1,999,000 | 2,539,520 | ||
| 74 | Mar 28, 2026 18:19 | 4,375 | 38,690,044 | 13,001,000 | 1,000,000 | 2,494,464 | ||
| 75 | Mar 28, 2026 18:18 | 4,376 | 30,573,065 | 13,002,000 | 1,000,000 | 2,281,472 | ||
| 76 | Mar 28, 2026 18:17 | 4,378 | 38,818,740 | 12,009,000 | 2,001,000 | 2,490,368 | ||
| 77 | Mar 28, 2026 18:19 | 4,379 | 27,579,522 | 13,012,000 | 1,000,000 | 2,281,472 | ||
| 78 | Mar 28, 2026 18:17 | 4,380 | 34,951,998 | 12,013,000 | 2,002,000 | 2,281,472 | ||
| 79 | Mar 28, 2026 18:18 | 4,382 | 30,202,482 | 12,020,000 | 2,003,000 | 2,502,656 | ||
| 80 | Mar 28, 2026 18:18 | 4,382 | 32,310,060 | 13,022,000 | 1,001,000 | 2,490,368 | ||
| 81 | Mar 28, 2026 18:18 | 4,385 | 31,262,079 | 12,029,000 | 2,004,000 | 2,486,272 | ||
| 82 | Mar 28, 2026 18:17 | 4,389 | 31,089,120 | 13,041,000 | 1,003,000 | 2,494,464 | ||
| 83 | Mar 28, 2026 18:19 | 4,390 | 46,852,517 | 13,044,000 | 1,003,000 | 2,281,472 | ||
| 84 | Mar 28, 2026 18:18 | 4,394 | 29,404,201 | 13,056,000 | 1,004,000 | 2,281,472 | ||
| 85 | Mar 28, 2026 18:20 | 4,447 | 26,764,854 | 13,214,000 | 1,016,000 | 2,281,472 | ||
| 86 | Mar 28, 2026 18:20 | 4,460 | 37,695,222 | 13,254,000 | 1,019,000 | 2,281,472 | ||
| 87 | Mar 28, 2026 18:20 | 4,528 | 37,338,970 | 13,455,000 | 1,035,000 | 2,281,472 | ||
| 88 | Mar 28, 2026 18:20 | 4,544 | 34,354,458 | 13,503,000 | 1,038,000 | 2,281,472 | ||
| 89 | Mar 28, 2026 18:20 | 4,562 | 29,856,912 | 13,556,000 | 1,042,000 | 2,498,560 | ||
| 90 | Mar 28, 2026 18:20 | 4,585 | 29,101,015 | 13,624,000 | 1,048,000 | 2,490,368 |