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 18:32 | 4,329 | 40,833,614 | 12,863,000 | 989,000 | 2,490,368 | ||
| 2 | Mar 28, 2026 18:29 | 4,333 | 30,087,582 | 12,875,000 | 990,000 | 2,494,464 | ||
| 3 | Mar 28, 2026 18:31 | 4,333 | 34,646,467 | 12,876,000 | 990,000 | 2,498,560 | ||
| 4 | Mar 28, 2026 18:32 | 4,333 | 30,491,749 | 12,877,000 | 990,000 | 2,498,560 | ||
| 5 | Mar 28, 2026 18:30 | 4,336 | 29,543,060 | 12,884,000 | 991,000 | 2,494,464 | ||
| 6 | Mar 28, 2026 18:32 | 4,336 | 32,766,099 | 13,875,000 | 0 | 2,486,272 | ||
| 7 | Mar 28, 2026 18:31 | 4,337 | 30,006,558 | 12,888,000 | 991,000 | 2,281,472 | ||
| 8 | Mar 28, 2026 18:29 | 4,337 | 31,569,209 | 12,887,000 | 991,000 | 2,494,464 | ||
| 9 | Mar 28, 2026 18:31 | 4,337 | 35,270,041 | 13,879,000 | 0 | 2,498,560 | ||
| 10 | Mar 28, 2026 18:30 | 4,337 | 28,157,666 | 13,878,000 | 0 | 2,486,272 | ||
| 11 | Mar 28, 2026 18:31 | 4,337 | 26,599,733 | 12,887,000 | 991,000 | 2,281,472 | ||
| 12 | Mar 28, 2026 18:29 | 4,337 | 29,279,798 | 12,886,000 | 991,000 | 2,281,472 | ||
| 13 | Mar 28, 2026 18:30 | 4,338 | 29,448,611 | 11,899,000 | 1,983,000 | 2,281,472 | ||
| 14 | Mar 28, 2026 18:31 | 4,338 | 31,243,604 | 13,881,000 | 0 | 2,281,472 | ||
| 15 | Mar 28, 2026 18:31 | 4,339 | 34,523,449 | 11,901,000 | 1,983,000 | 2,494,464 | ||
| 16 | Mar 28, 2026 18:32 | 4,341 | 32,160,672 | 12,900,000 | 992,000 | 2,281,472 | ||
| 17 | Mar 28, 2026 18:30 | 4,341 | 42,744,942 | 12,899,000 | 992,000 | 2,498,560 | ||
| 18 | Mar 28, 2026 18:31 | 4,341 | 29,301,251 | 13,891,000 | 0 | 2,498,560 | ||
| 19 | Mar 28, 2026 18:29 | 4,341 | 37,297,386 | 12,900,000 | 992,000 | 2,494,464 | ||
| 20 | Mar 28, 2026 18:32 | 4,342 | 26,597,299 | 12,903,000 | 992,000 | 2,281,472 | ||
| 21 | Mar 28, 2026 18:32 | 4,342 | 37,647,281 | 13,893,000 | 0 | 2,498,560 | ||
| 22 | Mar 28, 2026 18:31 | 4,343 | 28,724,319 | 13,898,000 | 0 | 2,281,472 | ||
| 23 | Mar 28, 2026 18:31 | 4,343 | 29,953,584 | 12,904,000 | 992,000 | 2,498,560 | ||
| 24 | Mar 28, 2026 18:30 | 4,343 | 28,379,444 | 12,906,000 | 992,000 | 2,494,464 | ||
| 25 | Mar 28, 2026 18:29 | 4,343 | 29,436,262 | 13,896,000 | 0 | 2,486,272 | ||
| 26 | Mar 28, 2026 18:30 | 4,344 | 28,355,240 | 12,909,000 | 993,000 | 2,494,464 | ||
| 27 | Mar 28, 2026 18:31 | 4,344 | 37,546,447 | 11,916,000 | 1,986,000 | 2,494,464 | ||
| 28 | Mar 28, 2026 18:30 | 4,344 | 30,526,030 | 12,908,000 | 992,000 | 2,281,472 | ||
| 29 | Mar 28, 2026 18:31 | 4,345 | 31,435,048 | 12,912,000 | 993,000 | 2,498,560 | ||
| 30 | Mar 28, 2026 18:31 | 4,346 | 30,575,934 | 12,914,000 | 993,000 | 2,281,472 | ||
| 31 | Mar 28, 2026 18:30 | 4,347 | 42,077,389 | 11,924,000 | 1,987,000 | 2,281,472 | ||
| 32 | Mar 28, 2026 18:32 | 4,347 | 34,507,918 | 12,916,000 | 993,000 | 2,539,520 | ||
| 33 | Mar 28, 2026 18:30 | 4,348 | 28,995,200 | 12,919,000 | 993,000 | 2,281,472 | ||
| 34 | Mar 28, 2026 18:30 | 4,348 | 43,660,836 | 11,927,000 | 1,987,000 | 2,498,560 | ||
| 35 | Mar 28, 2026 18:32 | 4,349 | 32,589,326 | 12,922,000 | 994,000 | 2,498,560 | ||
| 36 | Mar 28, 2026 18:31 | 4,351 | 32,134,465 | 12,930,000 | 994,000 | 2,498,560 | ||
| 37 | Mar 28, 2026 18:32 | 4,351 | 30,098,333 | 12,929,000 | 994,000 | 2,535,424 | ||
| 38 | Mar 28, 2026 18:31 | 4,352 | 32,568,885 | 12,933,000 | 994,000 | 2,498,560 | ||
| 39 | Mar 28, 2026 18:31 | 4,352 | 42,139,667 | 11,937,000 | 1,989,000 | 2,498,560 | ||
| 40 | Mar 28, 2026 18:29 | 4,353 | 40,632,991 | 11,941,000 | 1,990,000 | 2,502,656 | ||
| 41 | Mar 28, 2026 18:29 | 4,353 | 31,773,669 | 12,935,000 | 995,000 | 2,281,472 | ||
| 42 | Mar 28, 2026 18:31 | 4,353 | 31,317,822 | 12,934,000 | 994,000 | 2,498,560 | ||
| 43 | Mar 28, 2026 18:30 | 4,354 | 36,657,598 | 12,937,000 | 995,000 | 2,494,464 | ||
| 44 | Mar 28, 2026 18:32 | 4,354 | 29,554,909 | 12,939,000 | 995,000 | 2,498,560 | ||
| 45 | Mar 28, 2026 18:29 | 4,355 | 34,834,872 | 11,946,000 | 1,991,000 | 2,281,472 | ||
| 46 | Mar 28, 2026 18:32 | 4,355 | 36,665,907 | 11,945,000 | 1,990,000 | 2,494,464 | ||
| 47 | Mar 28, 2026 18:31 | 4,356 | 37,118,420 | 12,943,000 | 995,000 | 2,494,464 | ||
| 48 | Mar 28, 2026 18:30 | 4,356 | 28,652,192 | 11,949,000 | 1,991,000 | 2,498,560 | ||
| 49 | Mar 28, 2026 18:29 | 4,358 | 26,871,165 | 11,953,000 | 1,992,000 | 2,498,560 | ||
| 50 | Mar 28, 2026 18:32 | 4,359 | 28,141,048 | 12,954,000 | 996,000 | 2,281,472 | ||
| 51 | Mar 28, 2026 18:32 | 4,359 | 36,842,447 | 12,954,000 | 996,000 | 2,281,472 | ||
| 52 | Mar 28, 2026 18:32 | 4,359 | 37,554,065 | 12,954,000 | 996,000 | 2,490,368 | ||
| 53 | Mar 28, 2026 18:29 | 4,360 | 40,400,457 | 12,955,000 | 996,000 | 2,281,472 | ||
| 54 | Mar 28, 2026 18:32 | 4,361 | 30,948,672 | 12,958,000 | 996,000 | 2,494,464 | ||
| 55 | Mar 28, 2026 18:32 | 4,363 | 34,705,698 | 12,966,000 | 997,000 | 2,498,560 | ||
| 56 | Mar 28, 2026 18:32 | 4,363 | 31,502,901 | 12,966,000 | 997,000 | 2,498,560 | ||
| 57 | Mar 28, 2026 18:29 | 4,363 | 41,342,375 | 11,969,000 | 1,994,000 | 2,494,464 | ||
| 58 | Mar 28, 2026 18:30 | 4,363 | 29,588,953 | 12,964,000 | 997,000 | 2,502,656 | ||
| 59 | Mar 28, 2026 18:29 | 4,364 | 31,577,552 | 12,969,000 | 997,000 | 2,281,472 | ||
| 60 | Mar 28, 2026 18:32 | 4,364 | 36,436,333 | 12,969,000 | 997,000 | 2,281,472 | ||
| 61 | Mar 28, 2026 18:31 | 4,365 | 28,881,301 | 12,971,000 | 997,000 | 2,494,464 | ||
| 62 | Mar 28, 2026 18:32 | 4,365 | 38,686,757 | 11,973,000 | 1,995,000 | 2,494,464 | ||
| 63 | Mar 28, 2026 18:29 | 4,366 | 29,629,216 | 12,973,000 | 997,000 | 2,498,560 | ||
| 64 | Mar 28, 2026 18:30 | 4,366 | 28,189,530 | 12,974,000 | 998,000 | 2,498,560 | ||
| 65 | Mar 28, 2026 18:31 | 4,366 | 26,675,113 | 12,974,000 | 998,000 | 2,490,368 | ||
| 66 | Mar 28, 2026 18:29 | 4,368 | 31,153,343 | 12,980,000 | 998,000 | 2,498,560 | ||
| 67 | Mar 28, 2026 18:29 | 4,369 | 32,090,319 | 12,983,000 | 998,000 | 2,281,472 | ||
| 68 | Mar 28, 2026 18:29 | 4,369 | 30,483,329 | 12,984,000 | 998,000 | 2,539,520 | ||
| 69 | Mar 28, 2026 18:29 | 4,370 | 31,747,151 | 11,987,000 | 1,997,000 | 2,494,464 | ||
| 70 | Mar 28, 2026 18:30 | 4,372 | 40,123,541 | 12,990,000 | 999,000 | 2,490,368 | ||
| 71 | Mar 28, 2026 18:30 | 4,372 | 28,225,306 | 12,992,000 | 999,000 | 2,494,464 | ||
| 72 | Mar 28, 2026 18:29 | 4,372 | 35,954,068 | 12,990,000 | 999,000 | 2,494,464 | ||
| 73 | Mar 28, 2026 18:30 | 4,375 | 27,783,446 | 12,000,000 | 2,000,000 | 2,535,424 | ||
| 74 | Mar 28, 2026 18:32 | 4,376 | 31,583,798 | 12,002,000 | 2,000,000 | 2,498,560 | ||
| 75 | Mar 28, 2026 18:30 | 4,378 | 33,695,810 | 13,011,000 | 1,000,000 | 2,490,368 | ||
| 76 | Mar 28, 2026 18:32 | 4,378 | 30,148,846 | 13,011,000 | 1,000,000 | 2,494,464 | ||
| 77 | Mar 28, 2026 18:31 | 4,380 | 28,323,220 | 12,013,000 | 2,002,000 | 2,494,464 | ||
| 78 | Mar 28, 2026 18:32 | 4,381 | 34,882,909 | 13,017,000 | 1,001,000 | 2,281,472 | ||
| 79 | Mar 28, 2026 18:31 | 4,381 | 30,801,948 | 13,017,000 | 1,001,000 | 2,494,464 | ||
| 80 | Mar 28, 2026 18:30 | 4,382 | 34,653,170 | 12,020,000 | 2,003,000 | 2,486,272 | ||
| 81 | Mar 28, 2026 18:32 | 4,382 | 37,310,920 | 13,021,000 | 1,001,000 | 2,498,560 | ||
| 82 | Mar 28, 2026 18:32 | 4,383 | 31,037,529 | 13,023,000 | 1,001,000 | 2,281,472 | ||
| 83 | Mar 28, 2026 18:29 | 4,383 | 29,504,655 | 12,022,000 | 2,003,000 | 2,494,464 | ||
| 84 | Mar 28, 2026 18:30 | 4,385 | 37,310,571 | 12,028,000 | 2,004,000 | 2,498,560 | ||
| 85 | Mar 28, 2026 18:30 | 4,388 | 34,918,045 | 13,039,000 | 1,003,000 | 2,277,376 | ||
| 86 | Mar 28, 2026 18:29 | 4,395 | 29,919,626 | 12,056,000 | 2,009,000 | 2,281,472 | ||
| 87 | Mar 28, 2026 18:29 | 4,411 | 42,672,136 | 12,100,000 | 2,016,000 | 2,281,472 | ||
| 88 | Mar 28, 2026 18:30 | 4,544 | 35,149,473 | 14,540,000 | 0 | 2,502,656 | ||
| 89 | Mar 28, 2026 18:30 | 4,558 | 31,692,113 | 13,543,000 | 1,041,000 | 2,494,464 | ||
| 90 | Mar 28, 2026 18:30 | 4,596 | 38,813,991 | 13,656,000 | 1,050,000 | 2,498,560 |