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 15:04 | 4,319 | 28,975,655 | 13,822,000 | 0 | 2,486,272 | ||
| 2 | Mar 28, 2026 15:04 | 4,332 | 28,423,297 | 12,873,000 | 990,000 | 2,281,472 | ||
| 3 | Mar 28, 2026 15:04 | 4,332 | 29,869,061 | 12,871,000 | 990,000 | 2,281,472 | ||
| 4 | Mar 28, 2026 15:04 | 4,333 | 31,362,786 | 13,866,000 | 0 | 2,502,656 | ||
| 5 | Mar 28, 2026 15:05 | 4,333 | 32,556,488 | 12,874,000 | 990,000 | 2,498,560 | ||
| 6 | Mar 28, 2026 15:03 | 4,334 | 31,738,647 | 12,879,000 | 990,000 | 2,281,472 | ||
| 7 | Mar 28, 2026 15:05 | 4,334 | 30,476,738 | 12,878,000 | 990,000 | 2,490,368 | ||
| 8 | Mar 28, 2026 15:06 | 4,335 | 32,653,155 | 12,882,000 | 990,000 | 2,281,472 | ||
| 9 | Mar 28, 2026 15:02 | 4,335 | 30,076,097 | 12,882,000 | 990,000 | 2,486,272 | ||
| 10 | Mar 28, 2026 15:06 | 4,336 | 37,683,140 | 12,883,000 | 991,000 | 2,535,424 | ||
| 11 | Mar 28, 2026 15:06 | 4,337 | 26,644,441 | 12,888,000 | 991,000 | 2,498,560 | ||
| 12 | Mar 28, 2026 15:06 | 4,337 | 43,072,117 | 13,879,000 | 0 | 2,494,464 | ||
| 13 | Mar 28, 2026 15:03 | 4,337 | 30,478,137 | 12,888,000 | 991,000 | 2,494,464 | ||
| 14 | Mar 28, 2026 15:04 | 4,337 | 32,150,611 | 12,886,000 | 991,000 | 2,494,464 | ||
| 15 | Mar 28, 2026 15:06 | 4,338 | 39,933,027 | 12,891,000 | 991,000 | 2,490,368 | ||
| 16 | Mar 28, 2026 15:04 | 4,338 | 40,562,971 | 12,889,000 | 991,000 | 2,494,464 | ||
| 17 | Mar 28, 2026 15:05 | 4,338 | 33,513,535 | 12,890,000 | 991,000 | 2,494,464 | ||
| 18 | Mar 28, 2026 15:06 | 4,338 | 25,934,779 | 12,892,000 | 991,000 | 2,490,368 | ||
| 19 | Mar 28, 2026 15:05 | 4,338 | 36,182,031 | 12,891,000 | 991,000 | 2,502,656 | ||
| 20 | Mar 28, 2026 15:03 | 4,338 | 30,738,350 | 12,891,000 | 991,000 | 2,494,464 | ||
| 21 | Mar 28, 2026 15:05 | 4,339 | 27,464,996 | 13,884,000 | 0 | 2,494,464 | ||
| 22 | Mar 28, 2026 15:04 | 4,339 | 25,879,811 | 12,895,000 | 991,000 | 2,498,560 | ||
| 23 | Mar 28, 2026 15:04 | 4,340 | 34,981,481 | 13,889,000 | 0 | 2,490,368 | ||
| 24 | Mar 28, 2026 15:04 | 4,340 | 38,277,130 | 12,897,000 | 992,000 | 2,494,464 | ||
| 25 | Mar 28, 2026 15:05 | 4,340 | 31,031,156 | 12,896,000 | 992,000 | 2,494,464 | ||
| 26 | Mar 28, 2026 15:06 | 4,341 | 32,600,538 | 12,900,000 | 992,000 | 2,482,176 | ||
| 27 | Mar 28, 2026 15:06 | 4,341 | 28,378,545 | 13,890,000 | 0 | 2,281,472 | ||
| 28 | Mar 28, 2026 15:02 | 4,341 | 37,406,973 | 12,898,000 | 992,000 | 2,281,472 | ||
| 29 | Mar 28, 2026 15:03 | 4,342 | 44,367,258 | 12,901,000 | 992,000 | 2,490,368 | ||
| 30 | Mar 28, 2026 15:02 | 4,342 | 31,247,168 | 12,902,000 | 992,000 | 2,490,368 | ||
| 31 | Mar 28, 2026 15:06 | 4,343 | 29,175,693 | 12,905,000 | 992,000 | 2,506,752 | ||
| 32 | Mar 28, 2026 15:06 | 4,345 | 28,857,869 | 12,911,000 | 993,000 | 2,281,472 | ||
| 33 | Mar 28, 2026 15:04 | 4,345 | 27,449,500 | 12,910,000 | 993,000 | 2,498,560 | ||
| 34 | Mar 28, 2026 15:03 | 4,346 | 31,689,952 | 12,913,000 | 993,000 | 2,281,472 | ||
| 35 | Mar 28, 2026 15:06 | 4,346 | 28,605,720 | 11,921,000 | 1,986,000 | 2,281,472 | ||
| 36 | Mar 28, 2026 15:06 | 4,346 | 36,612,573 | 12,915,000 | 993,000 | 2,486,272 | ||
| 37 | Mar 28, 2026 15:05 | 4,349 | 32,777,833 | 12,923,000 | 994,000 | 2,486,272 | ||
| 38 | Mar 28, 2026 15:05 | 4,349 | 30,412,644 | 11,928,000 | 1,988,000 | 2,494,464 | ||
| 39 | Mar 28, 2026 15:05 | 4,350 | 29,268,545 | 12,927,000 | 994,000 | 2,498,560 | ||
| 40 | Mar 28, 2026 15:02 | 4,350 | 28,839,614 | 12,925,000 | 994,000 | 2,281,472 | ||
| 41 | Mar 28, 2026 15:04 | 4,351 | 29,141,138 | 11,935,000 | 1,989,000 | 2,281,472 | ||
| 42 | Mar 28, 2026 15:05 | 4,351 | 25,496,033 | 13,922,000 | 0 | 2,281,472 | ||
| 43 | Mar 28, 2026 15:03 | 4,351 | 37,619,438 | 12,929,000 | 994,000 | 2,498,560 | ||
| 44 | Mar 28, 2026 15:05 | 4,353 | 31,689,155 | 12,936,000 | 995,000 | 2,281,472 | ||
| 45 | Mar 28, 2026 15:04 | 4,354 | 29,933,658 | 12,939,000 | 995,000 | 2,498,560 | ||
| 46 | Mar 28, 2026 15:06 | 4,354 | 34,882,861 | 12,938,000 | 995,000 | 2,539,520 | ||
| 47 | Mar 28, 2026 15:03 | 4,354 | 31,810,036 | 12,938,000 | 995,000 | 2,281,472 | ||
| 48 | Mar 28, 2026 15:04 | 4,354 | 36,473,450 | 13,933,000 | 0 | 2,498,560 | ||
| 49 | Mar 28, 2026 15:03 | 4,355 | 34,828,741 | 11,946,000 | 1,991,000 | 2,502,656 | ||
| 50 | Mar 28, 2026 15:04 | 4,356 | 36,963,846 | 12,943,000 | 995,000 | 2,281,472 | ||
| 51 | Mar 28, 2026 15:04 | 4,356 | 41,416,645 | 12,943,000 | 995,000 | 2,281,472 | ||
| 52 | Mar 28, 2026 15:05 | 4,356 | 40,174,126 | 12,945,000 | 995,000 | 2,281,472 | ||
| 53 | Mar 28, 2026 15:05 | 4,357 | 30,494,390 | 11,950,000 | 1,991,000 | 2,502,656 | ||
| 54 | Mar 28, 2026 15:03 | 4,357 | 35,329,089 | 11,951,000 | 1,991,000 | 2,494,464 | ||
| 55 | Mar 28, 2026 15:06 | 4,358 | 31,046,305 | 12,949,000 | 996,000 | 2,490,368 | ||
| 56 | Mar 28, 2026 15:02 | 4,358 | 32,505,823 | 12,949,000 | 996,000 | 2,494,464 | ||
| 57 | Mar 28, 2026 15:06 | 4,358 | 38,645,016 | 11,953,000 | 1,992,000 | 2,490,368 | ||
| 58 | Mar 28, 2026 15:05 | 4,359 | 29,772,867 | 12,954,000 | 996,000 | 2,281,472 | ||
| 59 | Mar 28, 2026 15:03 | 4,359 | 26,693,848 | 12,953,000 | 996,000 | 2,281,472 | ||
| 60 | Mar 28, 2026 15:05 | 4,359 | 29,364,212 | 12,953,000 | 996,000 | 2,281,472 | ||
| 61 | Mar 28, 2026 15:03 | 4,360 | 30,066,076 | 12,955,000 | 996,000 | 2,281,472 | ||
| 62 | Mar 28, 2026 15:03 | 4,362 | 28,594,769 | 12,962,000 | 997,000 | 2,498,560 | ||
| 63 | Mar 28, 2026 15:04 | 4,362 | 31,388,933 | 12,962,000 | 997,000 | 2,281,472 | ||
| 64 | Mar 28, 2026 15:05 | 4,363 | 30,765,063 | 12,965,000 | 997,000 | 2,494,464 | ||
| 65 | Mar 28, 2026 15:06 | 4,363 | 28,012,869 | 12,964,000 | 997,000 | 2,494,464 | ||
| 66 | Mar 28, 2026 15:04 | 4,363 | 33,083,362 | 12,966,000 | 997,000 | 2,494,464 | ||
| 67 | Mar 28, 2026 15:05 | 4,364 | 34,652,394 | 12,968,000 | 997,000 | 2,494,464 | ||
| 68 | Mar 28, 2026 15:04 | 4,364 | 27,927,166 | 12,967,000 | 997,000 | 2,281,472 | ||
| 69 | Mar 28, 2026 15:03 | 4,365 | 32,451,692 | 12,972,000 | 997,000 | 2,281,472 | ||
| 70 | Mar 28, 2026 15:04 | 4,365 | 27,049,657 | 12,970,000 | 997,000 | 2,502,656 | ||
| 71 | Mar 28, 2026 15:06 | 4,366 | 29,805,797 | 12,973,000 | 997,000 | 2,490,368 | ||
| 72 | Mar 28, 2026 15:03 | 4,367 | 26,811,636 | 12,977,000 | 998,000 | 2,281,472 | ||
| 73 | Mar 28, 2026 15:05 | 4,367 | 41,771,966 | 11,979,000 | 1,996,000 | 2,281,472 | ||
| 74 | Mar 28, 2026 15:02 | 4,367 | 29,314,707 | 12,975,000 | 998,000 | 2,494,464 | ||
| 75 | Mar 28, 2026 15:02 | 4,369 | 39,306,142 | 11,983,000 | 1,997,000 | 2,494,464 | ||
| 76 | Mar 28, 2026 15:04 | 4,371 | 29,998,169 | 12,987,000 | 999,000 | 2,281,472 | ||
| 77 | Mar 28, 2026 15:04 | 4,372 | 27,507,135 | 11,991,000 | 1,998,000 | 2,281,472 | ||
| 78 | Mar 28, 2026 15:06 | 4,374 | 37,009,049 | 11,997,000 | 1,999,000 | 2,502,656 | ||
| 79 | Mar 28, 2026 15:03 | 4,374 | 30,553,084 | 11,997,000 | 1,999,000 | 2,494,464 | ||
| 80 | Mar 28, 2026 15:03 | 4,375 | 42,423,291 | 12,001,000 | 2,000,000 | 2,494,464 | ||
| 81 | Mar 28, 2026 15:03 | 4,378 | 31,937,088 | 12,008,000 | 2,001,000 | 2,281,472 | ||
| 82 | Mar 28, 2026 15:02 | 4,378 | 31,556,449 | 13,009,000 | 1,000,000 | 2,281,472 | ||
| 83 | Mar 28, 2026 15:03 | 4,380 | 26,707,057 | 13,015,000 | 1,001,000 | 2,281,472 | ||
| 84 | Mar 28, 2026 15:05 | 4,382 | 32,163,126 | 13,020,000 | 1,001,000 | 2,494,464 | ||
| 85 | Mar 28, 2026 15:03 | 4,383 | 29,524,246 | 13,025,000 | 1,001,000 | 2,494,464 | ||
| 86 | Mar 28, 2026 15:05 | 4,383 | 30,831,842 | 12,021,000 | 2,003,000 | 2,281,472 | ||
| 87 | Mar 28, 2026 15:03 | 4,384 | 29,625,939 | 12,026,000 | 2,004,000 | 2,490,368 | ||
| 88 | Mar 28, 2026 15:05 | 4,387 | 31,367,758 | 13,036,000 | 1,002,000 | 2,494,464 | ||
| 89 | Mar 28, 2026 15:03 | 4,388 | 29,819,925 | 12,036,000 | 2,006,000 | 2,281,472 | ||
| 90 | Mar 28, 2026 15:02 | 4,419 | 31,677,782 | 12,122,000 | 2,020,000 | 2,486,272 |