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 20:14 | 4,334 | 28,939,797 | 12,878,000 | 990,000 | 2,539,520 | ||
| 2 | Mar 28, 2026 20:16 | 4,334 | 27,834,466 | 12,879,000 | 990,000 | 2,494,464 | ||
| 3 | Mar 28, 2026 20:14 | 4,337 | 33,549,536 | 12,888,000 | 991,000 | 2,281,472 | ||
| 4 | Mar 28, 2026 20:16 | 4,337 | 29,924,556 | 13,878,000 | 0 | 2,490,368 | ||
| 5 | Mar 28, 2026 20:14 | 4,338 | 28,458,669 | 12,891,000 | 991,000 | 2,281,472 | ||
| 6 | Mar 28, 2026 20:16 | 4,338 | 43,404,108 | 12,889,000 | 991,000 | 2,498,560 | ||
| 7 | Mar 28, 2026 20:15 | 4,338 | 30,762,419 | 12,889,000 | 991,000 | 2,281,472 | ||
| 8 | Mar 28, 2026 20:16 | 4,338 | 33,488,769 | 12,892,000 | 991,000 | 2,494,464 | ||
| 9 | Mar 28, 2026 20:17 | 4,339 | 29,367,766 | 12,895,000 | 991,000 | 2,494,464 | ||
| 10 | Mar 28, 2026 20:16 | 4,341 | 33,970,172 | 13,891,000 | 0 | 2,490,368 | ||
| 11 | Mar 28, 2026 20:14 | 4,341 | 30,608,091 | 12,900,000 | 992,000 | 2,494,464 | ||
| 12 | Mar 28, 2026 20:16 | 4,341 | 29,645,610 | 12,900,000 | 992,000 | 2,281,472 | ||
| 13 | Mar 28, 2026 20:15 | 4,342 | 33,534,314 | 12,901,000 | 992,000 | 2,502,656 | ||
| 14 | Mar 28, 2026 20:14 | 4,343 | 39,493,429 | 12,907,000 | 992,000 | 2,494,464 | ||
| 15 | Mar 28, 2026 20:15 | 4,343 | 33,227,160 | 12,905,000 | 992,000 | 2,494,464 | ||
| 16 | Mar 28, 2026 20:14 | 4,343 | 36,456,569 | 12,904,000 | 992,000 | 2,502,656 | ||
| 17 | Mar 28, 2026 20:15 | 4,344 | 37,839,327 | 12,908,000 | 992,000 | 2,281,472 | ||
| 18 | Mar 28, 2026 20:16 | 4,344 | 34,697,005 | 12,908,000 | 992,000 | 2,486,272 | ||
| 19 | Mar 28, 2026 20:16 | 4,345 | 27,199,749 | 12,910,000 | 993,000 | 2,494,464 | ||
| 20 | Mar 28, 2026 20:17 | 4,345 | 38,173,160 | 12,912,000 | 993,000 | 2,281,472 | ||
| 21 | Mar 28, 2026 20:17 | 4,345 | 31,737,041 | 12,912,000 | 993,000 | 2,490,368 | ||
| 22 | Mar 28, 2026 20:15 | 4,346 | 27,409,862 | 13,908,000 | 0 | 2,498,560 | ||
| 23 | Mar 28, 2026 20:17 | 4,347 | 32,648,221 | 12,916,000 | 993,000 | 2,281,472 | ||
| 24 | Mar 28, 2026 20:17 | 4,347 | 28,131,056 | 12,916,000 | 993,000 | 2,494,464 | ||
| 25 | Mar 28, 2026 20:15 | 4,347 | 37,090,057 | 12,917,000 | 993,000 | 2,281,472 | ||
| 26 | Mar 28, 2026 20:17 | 4,348 | 32,498,337 | 12,919,000 | 993,000 | 2,281,472 | ||
| 27 | Mar 28, 2026 20:14 | 4,349 | 25,578,413 | 11,930,000 | 1,988,000 | 2,502,656 | ||
| 28 | Mar 28, 2026 20:16 | 4,349 | 31,358,998 | 13,918,000 | 0 | 2,494,464 | ||
| 29 | Mar 28, 2026 20:15 | 4,349 | 29,912,868 | 12,922,000 | 994,000 | 2,281,472 | ||
| 30 | Mar 28, 2026 20:15 | 4,349 | 30,540,186 | 13,918,000 | 0 | 2,494,464 | ||
| 31 | Mar 28, 2026 20:14 | 4,349 | 31,952,414 | 12,922,000 | 994,000 | 2,498,560 | ||
| 32 | Mar 28, 2026 20:17 | 4,349 | 38,153,580 | 12,922,000 | 994,000 | 2,502,656 | ||
| 33 | Mar 28, 2026 20:16 | 4,350 | 40,711,089 | 11,932,000 | 1,988,000 | 2,490,368 | ||
| 34 | Mar 28, 2026 20:15 | 4,351 | 32,521,808 | 11,935,000 | 1,989,000 | 2,494,464 | ||
| 35 | Mar 28, 2026 20:14 | 4,351 | 31,183,729 | 12,928,000 | 994,000 | 2,490,368 | ||
| 36 | Mar 28, 2026 20:15 | 4,352 | 44,139,895 | 12,932,000 | 994,000 | 2,498,560 | ||
| 37 | Mar 28, 2026 20:15 | 4,352 | 27,447,707 | 11,936,000 | 1,989,000 | 2,498,560 | ||
| 38 | Mar 28, 2026 20:14 | 4,353 | 29,047,683 | 12,936,000 | 995,000 | 2,490,368 | ||
| 39 | Mar 28, 2026 20:16 | 4,353 | 29,025,320 | 11,941,000 | 1,990,000 | 2,281,472 | ||
| 40 | Mar 28, 2026 20:16 | 4,354 | 31,646,431 | 12,937,000 | 995,000 | 2,281,472 | ||
| 41 | Mar 28, 2026 20:16 | 4,355 | 33,762,910 | 12,942,000 | 995,000 | 2,494,464 | ||
| 42 | Mar 28, 2026 20:14 | 4,355 | 29,262,040 | 12,942,000 | 995,000 | 2,502,656 | ||
| 43 | Mar 28, 2026 20:16 | 4,356 | 35,907,105 | 12,945,000 | 995,000 | 2,494,464 | ||
| 44 | Mar 28, 2026 20:17 | 4,356 | 35,114,069 | 12,944,000 | 995,000 | 2,281,472 | ||
| 45 | Mar 28, 2026 20:17 | 4,356 | 39,708,889 | 12,943,000 | 995,000 | 2,498,560 | ||
| 46 | Mar 28, 2026 20:16 | 4,356 | 32,998,958 | 11,949,000 | 1,991,000 | 2,498,560 | ||
| 47 | Mar 28, 2026 20:15 | 4,356 | 35,319,238 | 12,943,000 | 995,000 | 2,281,472 | ||
| 48 | Mar 28, 2026 20:14 | 4,357 | 31,713,688 | 12,946,000 | 995,000 | 2,498,560 | ||
| 49 | Mar 28, 2026 20:16 | 4,358 | 30,616,429 | 12,950,000 | 996,000 | 2,498,560 | ||
| 50 | Mar 28, 2026 20:16 | 4,359 | 36,622,962 | 12,952,000 | 996,000 | 2,494,464 | ||
| 51 | Mar 28, 2026 20:15 | 4,359 | 27,303,939 | 12,952,000 | 996,000 | 2,281,472 | ||
| 52 | Mar 28, 2026 20:14 | 4,359 | 30,606,058 | 12,952,000 | 996,000 | 2,502,656 | ||
| 53 | Mar 28, 2026 20:15 | 4,359 | 29,475,891 | 11,956,000 | 1,992,000 | 2,498,560 | ||
| 54 | Mar 28, 2026 20:17 | 4,360 | 40,188,992 | 11,959,000 | 1,993,000 | 2,502,656 | ||
| 55 | Mar 28, 2026 20:16 | 4,360 | 29,405,134 | 11,958,000 | 1,993,000 | 2,494,464 | ||
| 56 | Mar 28, 2026 20:16 | 4,360 | 46,655,506 | 12,957,000 | 996,000 | 2,490,368 | ||
| 57 | Mar 28, 2026 20:15 | 4,361 | 36,196,468 | 12,960,000 | 996,000 | 2,502,656 | ||
| 58 | Mar 28, 2026 20:15 | 4,361 | 28,510,979 | 11,961,000 | 1,993,000 | 2,281,472 | ||
| 59 | Mar 28, 2026 20:16 | 4,362 | 31,846,969 | 12,962,000 | 997,000 | 2,490,368 | ||
| 60 | Mar 28, 2026 20:14 | 4,363 | 33,536,610 | 11,967,000 | 1,994,000 | 2,281,472 | ||
| 61 | Mar 28, 2026 20:14 | 4,363 | 30,455,028 | 12,966,000 | 997,000 | 2,281,472 | ||
| 62 | Mar 28, 2026 20:14 | 4,363 | 33,537,936 | 11,967,000 | 1,994,000 | 2,281,472 | ||
| 63 | Mar 28, 2026 20:15 | 4,363 | 43,580,197 | 12,964,000 | 997,000 | 2,281,472 | ||
| 64 | Mar 28, 2026 20:14 | 4,365 | 34,241,669 | 11,973,000 | 1,995,000 | 2,494,464 | ||
| 65 | Mar 28, 2026 20:16 | 4,367 | 30,267,051 | 11,978,000 | 1,996,000 | 2,281,472 | ||
| 66 | Mar 28, 2026 20:17 | 4,367 | 30,854,109 | 11,978,000 | 1,996,000 | 2,494,464 | ||
| 67 | Mar 28, 2026 20:15 | 4,367 | 35,099,075 | 12,977,000 | 998,000 | 2,498,560 | ||
| 68 | Mar 28, 2026 20:16 | 4,367 | 30,880,918 | 12,977,000 | 998,000 | 2,490,368 | ||
| 69 | Mar 28, 2026 20:15 | 4,368 | 31,124,606 | 12,981,000 | 998,000 | 2,498,560 | ||
| 70 | Mar 28, 2026 20:14 | 4,368 | 37,258,653 | 11,980,000 | 1,996,000 | 2,490,368 | ||
| 71 | Mar 28, 2026 20:14 | 4,368 | 36,463,373 | 12,979,000 | 998,000 | 2,498,560 | ||
| 72 | Mar 28, 2026 20:15 | 4,369 | 29,457,483 | 12,983,000 | 998,000 | 2,494,464 | ||
| 73 | Mar 28, 2026 20:17 | 4,369 | 28,887,334 | 12,982,000 | 998,000 | 2,281,472 | ||
| 74 | Mar 28, 2026 20:16 | 4,369 | 26,340,124 | 12,982,000 | 998,000 | 2,498,560 | ||
| 75 | Mar 28, 2026 20:14 | 4,370 | 26,454,233 | 12,986,000 | 998,000 | 2,281,472 | ||
| 76 | Mar 28, 2026 20:17 | 4,372 | 40,687,557 | 11,993,000 | 1,998,000 | 2,498,560 | ||
| 77 | Mar 28, 2026 20:14 | 4,373 | 29,157,886 | 11,994,000 | 1,999,000 | 2,498,560 | ||
| 78 | Mar 28, 2026 20:17 | 4,373 | 30,382,334 | 12,996,000 | 999,000 | 2,281,472 | ||
| 79 | Mar 28, 2026 20:15 | 4,374 | 34,799,924 | 12,998,000 | 999,000 | 2,277,376 | ||
| 80 | Mar 28, 2026 20:17 | 4,384 | 25,601,127 | 12,026,000 | 2,004,000 | 2,494,464 | ||
| 81 | Mar 28, 2026 20:14 | 4,384 | 30,861,936 | 13,027,000 | 1,002,000 | 2,281,472 | ||
| 82 | Mar 28, 2026 20:17 | 4,386 | 34,282,426 | 13,034,000 | 1,002,000 | 2,490,368 | ||
| 83 | Mar 28, 2026 20:16 | 4,393 | 30,174,075 | 13,052,000 | 1,004,000 | 2,281,472 | ||
| 84 | Mar 28, 2026 20:17 | 4,395 | 28,729,001 | 12,055,000 | 2,009,000 | 2,281,472 | ||
| 85 | Mar 28, 2026 20:17 | 4,397 | 34,373,070 | 13,066,000 | 1,005,000 | 2,490,368 | ||
| 86 | Mar 28, 2026 20:15 | 4,437 | 30,176,581 | 13,185,000 | 1,014,000 | 2,490,368 | ||
| 87 | Mar 28, 2026 20:15 | 4,475 | 31,080,681 | 13,297,000 | 1,022,000 | 2,498,560 | ||
| 88 | Mar 28, 2026 20:15 | 4,507 | 38,862,862 | 13,392,000 | 1,030,000 | 2,281,472 | ||
| 89 | Mar 28, 2026 20:14 | 4,647 | 33,418,713 | 13,878,000 | 991,000 | 2,281,472 | ||
| 90 | Mar 28, 2026 20:14 | 4,656 | 32,259,994 | 12,912,000 | 1,986,000 | 2,494,464 |