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 12:22 | 4,324 | 29,165,557 | 12,849,000 | 988,000 | 2,502,656 | ||
| 2 | Mar 28, 2026 12:21 | 4,325 | 29,475,351 | 12,852,000 | 988,000 | 2,498,560 | ||
| 3 | Mar 28, 2026 12:22 | 4,326 | 29,249,203 | 12,856,000 | 988,000 | 2,494,464 | ||
| 4 | Mar 28, 2026 12:28 | 4,328 | 28,634,303 | 13,848,000 | 0 | 2,281,472 | ||
| 5 | Mar 28, 2026 12:28 | 4,331 | 29,236,081 | 12,869,000 | 989,000 | 2,281,472 | ||
| 6 | Mar 28, 2026 12:21 | 4,331 | 33,184,864 | 13,858,000 | 0 | 2,486,272 | ||
| 7 | Mar 28, 2026 12:22 | 4,331 | 34,989,211 | 13,859,000 | 0 | 2,281,472 | ||
| 8 | Mar 28, 2026 12:12 | 4,332 | 27,575,317 | 12,872,000 | 990,000 | 2,494,464 | ||
| 9 | Mar 28, 2026 12:22 | 4,334 | 28,021,670 | 12,880,000 | 990,000 | 2,281,472 | ||
| 10 | Mar 28, 2026 12:22 | 4,334 | 42,390,426 | 12,880,000 | 990,000 | 2,281,472 | ||
| 11 | Mar 28, 2026 12:15 | 4,334 | 40,017,177 | 12,880,000 | 990,000 | 2,498,560 | ||
| 12 | Mar 28, 2026 12:16 | 4,335 | 35,613,956 | 12,882,000 | 990,000 | 2,281,472 | ||
| 13 | Mar 28, 2026 12:22 | 4,335 | 27,092,596 | 12,882,000 | 990,000 | 2,498,560 | ||
| 14 | Mar 28, 2026 12:30 | 4,336 | 31,130,949 | 12,884,000 | 991,000 | 2,506,752 | ||
| 15 | Mar 28, 2026 12:16 | 4,337 | 29,742,002 | 11,896,000 | 1,982,000 | 2,494,464 | ||
| 16 | Mar 28, 2026 12:22 | 4,337 | 30,394,786 | 12,888,000 | 991,000 | 2,498,560 | ||
| 17 | Mar 28, 2026 12:22 | 4,338 | 26,203,246 | 12,892,000 | 991,000 | 2,490,368 | ||
| 18 | Mar 28, 2026 12:28 | 4,338 | 30,285,553 | 12,890,000 | 991,000 | 2,502,656 | ||
| 19 | Mar 28, 2026 12:30 | 4,338 | 26,370,965 | 12,889,000 | 991,000 | 2,498,560 | ||
| 20 | Mar 28, 2026 12:16 | 4,338 | 37,034,135 | 12,892,000 | 991,000 | 2,494,464 | ||
| 21 | Mar 28, 2026 12:11 | 4,338 | 30,589,259 | 12,891,000 | 991,000 | 2,498,560 | ||
| 22 | Mar 28, 2026 12:11 | 4,338 | 30,574,207 | 12,891,000 | 991,000 | 2,498,560 | ||
| 23 | Mar 28, 2026 12:27 | 4,339 | 40,997,815 | 12,894,000 | 991,000 | 2,281,472 | ||
| 24 | Mar 28, 2026 12:21 | 4,339 | 29,395,863 | 12,893,000 | 991,000 | 2,498,560 | ||
| 25 | Mar 28, 2026 12:21 | 4,339 | 39,959,162 | 12,893,000 | 991,000 | 2,494,464 | ||
| 26 | Mar 28, 2026 12:28 | 4,339 | 33,823,189 | 13,886,000 | 0 | 2,494,464 | ||
| 27 | Mar 28, 2026 12:15 | 4,340 | 33,221,223 | 12,897,000 | 992,000 | 2,498,560 | ||
| 28 | Mar 28, 2026 12:29 | 4,341 | 39,097,781 | 12,898,000 | 992,000 | 2,281,472 | ||
| 29 | Mar 28, 2026 12:21 | 4,341 | 30,555,423 | 12,900,000 | 992,000 | 2,281,472 | ||
| 30 | Mar 28, 2026 12:21 | 4,341 | 30,565,736 | 12,899,000 | 992,000 | 2,490,368 | ||
| 31 | Mar 28, 2026 12:29 | 4,341 | 26,724,202 | 12,900,000 | 992,000 | 2,281,472 | ||
| 32 | Mar 28, 2026 12:12 | 4,341 | 43,285,050 | 12,900,000 | 992,000 | 2,490,368 | ||
| 33 | Mar 28, 2026 12:15 | 4,342 | 32,664,277 | 12,903,000 | 992,000 | 2,281,472 | ||
| 34 | Mar 28, 2026 12:29 | 4,342 | 36,479,119 | 12,903,000 | 992,000 | 2,490,368 | ||
| 35 | Mar 28, 2026 12:29 | 4,342 | 35,925,135 | 12,901,000 | 992,000 | 2,502,656 | ||
| 36 | Mar 28, 2026 12:27 | 4,342 | 28,314,840 | 12,901,000 | 992,000 | 2,281,472 | ||
| 37 | Mar 28, 2026 12:29 | 4,342 | 29,355,518 | 13,893,000 | 0 | 2,281,472 | ||
| 38 | Mar 28, 2026 12:17 | 4,343 | 39,804,083 | 12,906,000 | 992,000 | 2,486,272 | ||
| 39 | Mar 28, 2026 12:15 | 4,343 | 33,592,856 | 12,906,000 | 992,000 | 2,494,464 | ||
| 40 | Mar 28, 2026 12:15 | 4,343 | 32,308,265 | 12,905,000 | 992,000 | 2,490,368 | ||
| 41 | Mar 28, 2026 12:22 | 4,343 | 44,134,726 | 12,906,000 | 992,000 | 2,281,472 | ||
| 42 | Mar 28, 2026 12:17 | 4,343 | 44,369,004 | 12,904,000 | 992,000 | 2,281,472 | ||
| 43 | Mar 28, 2026 12:15 | 4,344 | 39,135,842 | 13,901,000 | 0 | 2,494,464 | ||
| 44 | Mar 28, 2026 12:17 | 4,345 | 28,644,710 | 11,918,000 | 1,986,000 | 2,490,368 | ||
| 45 | Mar 28, 2026 12:21 | 4,345 | 29,827,020 | 12,912,000 | 993,000 | 2,281,472 | ||
| 46 | Mar 28, 2026 12:28 | 4,345 | 26,064,051 | 12,911,000 | 993,000 | 2,498,560 | ||
| 47 | Mar 28, 2026 12:27 | 4,345 | 44,435,202 | 12,910,000 | 993,000 | 2,281,472 | ||
| 48 | Mar 28, 2026 12:30 | 4,345 | 30,124,728 | 12,910,000 | 993,000 | 2,498,560 | ||
| 49 | Mar 28, 2026 12:17 | 4,346 | 28,897,021 | 13,908,000 | 0 | 2,498,560 | ||
| 50 | Mar 28, 2026 12:30 | 4,346 | 30,114,301 | 12,914,000 | 993,000 | 2,281,472 | ||
| 51 | Mar 28, 2026 12:27 | 4,347 | 29,471,062 | 12,918,000 | 993,000 | 2,281,472 | ||
| 52 | Mar 28, 2026 12:11 | 4,348 | 37,310,119 | 12,920,000 | 993,000 | 2,502,656 | ||
| 53 | Mar 28, 2026 12:15 | 4,348 | 37,702,950 | 12,919,000 | 993,000 | 2,281,472 | ||
| 54 | Mar 28, 2026 12:29 | 4,349 | 31,201,154 | 11,929,000 | 1,988,000 | 2,498,560 | ||
| 55 | Mar 28, 2026 12:15 | 4,350 | 27,330,925 | 12,926,000 | 994,000 | 2,498,560 | ||
| 56 | Mar 28, 2026 12:12 | 4,350 | 26,156,900 | 13,920,000 | 0 | 2,498,560 | ||
| 57 | Mar 28, 2026 12:21 | 4,351 | 27,212,537 | 13,922,000 | 0 | 2,281,472 | ||
| 58 | Mar 28, 2026 12:22 | 4,351 | 31,370,378 | 12,928,000 | 994,000 | 2,281,472 | ||
| 59 | Mar 28, 2026 12:17 | 4,352 | 31,876,382 | 11,938,000 | 1,989,000 | 2,498,560 | ||
| 60 | Mar 28, 2026 12:21 | 4,353 | 29,354,083 | 12,936,000 | 995,000 | 2,494,464 | ||
| 61 | Mar 28, 2026 12:12 | 4,354 | 37,432,991 | 12,938,000 | 995,000 | 2,490,368 | ||
| 62 | Mar 28, 2026 12:21 | 4,354 | 30,238,410 | 11,944,000 | 1,990,000 | 2,498,560 | ||
| 63 | Mar 28, 2026 12:22 | 4,354 | 27,376,083 | 12,938,000 | 995,000 | 2,490,368 | ||
| 64 | Mar 28, 2026 12:28 | 4,354 | 36,451,232 | 12,939,000 | 995,000 | 2,281,472 | ||
| 65 | Mar 28, 2026 12:28 | 4,355 | 29,750,078 | 12,940,000 | 995,000 | 2,281,472 | ||
| 66 | Mar 28, 2026 12:30 | 4,355 | 31,933,797 | 11,945,000 | 1,990,000 | 2,490,368 | ||
| 67 | Mar 28, 2026 12:16 | 4,356 | 27,020,949 | 12,945,000 | 995,000 | 2,498,560 | ||
| 68 | Mar 28, 2026 12:27 | 4,358 | 29,467,973 | 11,954,000 | 1,992,000 | 2,535,424 | ||
| 69 | Mar 28, 2026 12:30 | 4,358 | 31,313,140 | 12,948,000 | 996,000 | 2,281,472 | ||
| 70 | Mar 28, 2026 12:12 | 4,360 | 28,903,433 | 12,956,000 | 996,000 | 2,281,472 | ||
| 71 | Mar 28, 2026 12:22 | 4,364 | 41,933,633 | 12,967,000 | 997,000 | 2,490,368 | ||
| 72 | Mar 28, 2026 12:27 | 4,366 | 33,280,703 | 12,974,000 | 998,000 | 2,281,472 | ||
| 73 | Mar 28, 2026 12:15 | 4,367 | 35,996,577 | 12,975,000 | 998,000 | 2,490,368 | ||
| 74 | Mar 28, 2026 12:12 | 4,367 | 26,426,909 | 12,976,000 | 998,000 | 2,281,472 | ||
| 75 | Mar 28, 2026 12:30 | 4,367 | 29,938,815 | 12,976,000 | 998,000 | 2,539,520 | ||
| 76 | Mar 28, 2026 12:28 | 4,368 | 34,064,351 | 12,980,000 | 998,000 | 2,281,472 | ||
| 77 | Mar 28, 2026 12:22 | 4,369 | 28,021,440 | 12,984,000 | 998,000 | 2,281,472 | ||
| 78 | Mar 28, 2026 12:16 | 4,369 | 32,397,818 | 11,983,000 | 1,997,000 | 2,486,272 | ||
| 79 | Mar 28, 2026 12:22 | 4,371 | 31,119,445 | 12,989,000 | 999,000 | 2,490,368 | ||
| 80 | Mar 28, 2026 12:22 | 4,372 | 26,556,178 | 12,990,000 | 999,000 | 2,494,464 | ||
| 81 | Mar 28, 2026 12:30 | 4,373 | 28,414,980 | 12,993,000 | 999,000 | 2,535,424 | ||
| 82 | Mar 28, 2026 12:30 | 4,373 | 32,976,094 | 12,993,000 | 999,000 | 2,494,464 | ||
| 83 | Mar 28, 2026 12:21 | 4,375 | 36,047,730 | 13,001,000 | 1,000,000 | 2,539,520 | ||
| 84 | Mar 28, 2026 12:22 | 4,376 | 29,335,015 | 13,002,000 | 1,000,000 | 2,498,560 | ||
| 85 | Mar 28, 2026 12:16 | 4,378 | 29,898,536 | 13,008,000 | 1,000,000 | 2,498,560 | ||
| 86 | Mar 28, 2026 12:28 | 4,381 | 28,122,732 | 13,018,000 | 1,001,000 | 2,281,472 | ||
| 87 | Mar 28, 2026 12:22 | 4,382 | 40,632,170 | 12,020,000 | 2,003,000 | 2,281,472 | ||
| 88 | Mar 28, 2026 12:17 | 4,392 | 29,202,619 | 12,047,000 | 2,007,000 | 2,281,472 | ||
| 89 | Mar 28, 2026 12:22 | 4,393 | 28,837,019 | 13,055,000 | 1,004,000 | 2,281,472 | ||
| 90 | Mar 28, 2026 12:21 | 4,395 | 30,601,092 | 13,061,000 | 1,004,000 | 2,494,464 |