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 15:39 | 4,319 | 28,600,640 | 12,834,000 | 987,000 | 2,281,472 | ||
| 2 | Mar 28, 2026 15:38 | 4,332 | 29,737,205 | 12,871,000 | 990,000 | 2,498,560 | ||
| 3 | Mar 28, 2026 15:39 | 4,334 | 35,546,748 | 12,880,000 | 990,000 | 2,490,368 | ||
| 4 | Mar 28, 2026 15:40 | 4,335 | 30,249,200 | 13,873,000 | 0 | 2,494,464 | ||
| 5 | Mar 28, 2026 15:39 | 4,335 | 30,031,179 | 12,882,000 | 990,000 | 2,490,368 | ||
| 6 | Mar 28, 2026 15:37 | 4,336 | 44,626,613 | 12,884,000 | 991,000 | 2,494,464 | ||
| 7 | Mar 28, 2026 15:39 | 4,337 | 26,160,714 | 12,886,000 | 991,000 | 2,490,368 | ||
| 8 | Mar 28, 2026 15:39 | 4,337 | 39,203,598 | 12,888,000 | 991,000 | 2,502,656 | ||
| 9 | Mar 28, 2026 15:38 | 4,338 | 29,247,015 | 12,891,000 | 991,000 | 2,281,472 | ||
| 10 | Mar 28, 2026 15:40 | 4,338 | 33,390,320 | 12,889,000 | 991,000 | 2,494,464 | ||
| 11 | Mar 28, 2026 15:37 | 4,338 | 48,101,912 | 12,890,000 | 991,000 | 2,494,464 | ||
| 12 | Mar 28, 2026 15:37 | 4,339 | 31,049,854 | 12,894,000 | 991,000 | 2,498,560 | ||
| 13 | Mar 28, 2026 15:39 | 4,339 | 28,468,556 | 13,884,000 | 0 | 2,490,368 | ||
| 14 | Mar 28, 2026 15:39 | 4,339 | 28,959,455 | 12,894,000 | 991,000 | 2,494,464 | ||
| 15 | Mar 28, 2026 15:39 | 4,339 | 28,626,300 | 12,893,000 | 991,000 | 2,281,472 | ||
| 16 | Mar 28, 2026 15:39 | 4,339 | 35,334,717 | 12,894,000 | 991,000 | 2,494,464 | ||
| 17 | Mar 28, 2026 15:37 | 4,339 | 33,315,154 | 12,893,000 | 991,000 | 2,498,560 | ||
| 18 | Mar 28, 2026 15:37 | 4,339 | 42,043,690 | 12,894,000 | 991,000 | 2,494,464 | ||
| 19 | Mar 28, 2026 15:37 | 4,340 | 29,349,384 | 12,896,000 | 992,000 | 2,494,464 | ||
| 20 | Mar 28, 2026 15:37 | 4,340 | 27,685,193 | 12,896,000 | 992,000 | 2,494,464 | ||
| 21 | Mar 28, 2026 15:39 | 4,341 | 32,197,293 | 12,899,000 | 992,000 | 2,281,472 | ||
| 22 | Mar 28, 2026 15:38 | 4,341 | 30,707,292 | 12,900,000 | 992,000 | 2,486,272 | ||
| 23 | Mar 28, 2026 15:36 | 4,341 | 36,755,043 | 12,899,000 | 992,000 | 2,281,472 | ||
| 24 | Mar 28, 2026 15:37 | 4,341 | 28,179,128 | 12,900,000 | 992,000 | 2,510,848 | ||
| 25 | Mar 28, 2026 15:40 | 4,341 | 42,596,042 | 13,892,000 | 0 | 2,490,368 | ||
| 26 | Mar 28, 2026 15:37 | 4,341 | 31,836,362 | 12,899,000 | 992,000 | 2,494,464 | ||
| 27 | Mar 28, 2026 15:40 | 4,342 | 40,749,012 | 12,902,000 | 992,000 | 2,494,464 | ||
| 28 | Mar 28, 2026 15:37 | 4,342 | 28,846,380 | 12,902,000 | 992,000 | 2,490,368 | ||
| 29 | Mar 28, 2026 15:38 | 4,342 | 37,483,957 | 13,893,000 | 0 | 2,281,472 | ||
| 30 | Mar 28, 2026 15:39 | 4,342 | 30,513,451 | 13,894,000 | 0 | 2,281,472 | ||
| 31 | Mar 28, 2026 15:40 | 4,342 | 28,551,606 | 12,902,000 | 992,000 | 2,494,464 | ||
| 32 | Mar 28, 2026 15:37 | 4,343 | 43,342,564 | 13,899,000 | 0 | 2,490,368 | ||
| 33 | Mar 28, 2026 15:36 | 4,343 | 31,215,926 | 12,905,000 | 992,000 | 2,498,560 | ||
| 34 | Mar 28, 2026 15:36 | 4,343 | 34,935,861 | 12,907,000 | 992,000 | 2,281,472 | ||
| 35 | Mar 28, 2026 15:37 | 4,343 | 31,516,465 | 11,911,000 | 1,985,000 | 2,498,560 | ||
| 36 | Mar 28, 2026 15:37 | 4,344 | 40,851,221 | 12,908,000 | 992,000 | 2,498,560 | ||
| 37 | Mar 28, 2026 15:40 | 4,344 | 31,683,874 | 12,909,000 | 993,000 | 2,281,472 | ||
| 38 | Mar 28, 2026 15:39 | 4,344 | 27,034,315 | 12,909,000 | 993,000 | 2,498,560 | ||
| 39 | Mar 28, 2026 15:40 | 4,346 | 40,037,293 | 13,906,000 | 0 | 2,494,464 | ||
| 40 | Mar 28, 2026 15:37 | 4,346 | 34,818,704 | 12,914,000 | 993,000 | 2,490,368 | ||
| 41 | Mar 28, 2026 15:38 | 4,346 | 28,476,397 | 11,920,000 | 1,986,000 | 2,502,656 | ||
| 42 | Mar 28, 2026 15:39 | 4,346 | 31,978,919 | 13,907,000 | 0 | 2,494,464 | ||
| 43 | Mar 28, 2026 15:38 | 4,346 | 31,734,458 | 12,913,000 | 993,000 | 2,494,464 | ||
| 44 | Mar 28, 2026 15:40 | 4,347 | 26,812,343 | 12,916,000 | 993,000 | 2,281,472 | ||
| 45 | Mar 28, 2026 15:38 | 4,347 | 40,581,742 | 12,917,000 | 993,000 | 2,490,368 | ||
| 46 | Mar 28, 2026 15:38 | 4,348 | 40,913,617 | 12,920,000 | 993,000 | 2,494,464 | ||
| 47 | Mar 28, 2026 15:36 | 4,350 | 30,986,951 | 12,926,000 | 994,000 | 2,494,464 | ||
| 48 | Mar 28, 2026 15:36 | 4,350 | 31,923,677 | 12,927,000 | 994,000 | 2,502,656 | ||
| 49 | Mar 28, 2026 15:37 | 4,351 | 28,473,324 | 12,929,000 | 994,000 | 2,502,656 | ||
| 50 | Mar 28, 2026 15:39 | 4,351 | 26,316,473 | 12,930,000 | 994,000 | 2,490,368 | ||
| 51 | Mar 28, 2026 15:39 | 4,351 | 31,808,748 | 12,928,000 | 994,000 | 2,498,560 | ||
| 52 | Mar 28, 2026 15:40 | 4,352 | 30,242,290 | 12,932,000 | 994,000 | 2,281,472 | ||
| 53 | Mar 28, 2026 15:38 | 4,352 | 36,711,175 | 13,926,000 | 0 | 2,281,472 | ||
| 54 | Mar 28, 2026 15:39 | 4,352 | 38,690,773 | 12,932,000 | 994,000 | 2,502,656 | ||
| 55 | Mar 28, 2026 15:40 | 4,353 | 30,114,245 | 11,939,000 | 1,989,000 | 2,498,560 | ||
| 56 | Mar 28, 2026 15:38 | 4,353 | 29,169,686 | 11,940,000 | 1,990,000 | 2,502,656 | ||
| 57 | Mar 28, 2026 15:37 | 4,355 | 37,883,544 | 12,940,000 | 995,000 | 2,498,560 | ||
| 58 | Mar 28, 2026 15:38 | 4,355 | 27,860,775 | 12,942,000 | 995,000 | 2,281,472 | ||
| 59 | Mar 28, 2026 15:38 | 4,356 | 34,173,182 | 12,943,000 | 995,000 | 2,502,656 | ||
| 60 | Mar 28, 2026 15:37 | 4,356 | 30,216,427 | 12,945,000 | 995,000 | 2,281,472 | ||
| 61 | Mar 28, 2026 15:39 | 4,357 | 37,143,230 | 12,946,000 | 995,000 | 2,498,560 | ||
| 62 | Mar 28, 2026 15:40 | 4,358 | 29,412,671 | 12,949,000 | 996,000 | 2,281,472 | ||
| 63 | Mar 28, 2026 15:39 | 4,361 | 28,232,043 | 12,959,000 | 996,000 | 2,494,464 | ||
| 64 | Mar 28, 2026 15:38 | 4,361 | 36,863,322 | 12,960,000 | 996,000 | 2,494,464 | ||
| 65 | Mar 28, 2026 15:40 | 4,361 | 41,515,372 | 12,959,000 | 996,000 | 2,281,472 | ||
| 66 | Mar 28, 2026 15:38 | 4,361 | 26,985,685 | 12,958,000 | 996,000 | 2,494,464 | ||
| 67 | Mar 28, 2026 15:39 | 4,364 | 28,770,265 | 12,967,000 | 997,000 | 2,281,472 | ||
| 68 | Mar 28, 2026 15:39 | 4,364 | 35,292,085 | 11,970,000 | 1,995,000 | 2,281,472 | ||
| 69 | Mar 28, 2026 15:36 | 4,365 | 32,922,708 | 12,971,000 | 997,000 | 2,490,368 | ||
| 70 | Mar 28, 2026 15:37 | 4,366 | 34,605,330 | 12,973,000 | 997,000 | 2,281,472 | ||
| 71 | Mar 28, 2026 15:39 | 4,366 | 29,509,467 | 12,974,000 | 998,000 | 2,281,472 | ||
| 72 | Mar 28, 2026 15:40 | 4,368 | 28,936,994 | 12,978,000 | 998,000 | 2,490,368 | ||
| 73 | Mar 28, 2026 15:38 | 4,369 | 42,485,823 | 12,982,000 | 998,000 | 2,281,472 | ||
| 74 | Mar 28, 2026 15:40 | 4,370 | 32,526,236 | 12,985,000 | 998,000 | 2,281,472 | ||
| 75 | Mar 28, 2026 15:39 | 4,371 | 33,045,350 | 12,987,000 | 999,000 | 2,281,472 | ||
| 76 | Mar 28, 2026 15:40 | 4,372 | 31,926,407 | 12,991,000 | 999,000 | 2,281,472 | ||
| 77 | Mar 28, 2026 15:40 | 4,373 | 34,630,862 | 12,996,000 | 999,000 | 2,281,472 | ||
| 78 | Mar 28, 2026 15:38 | 4,373 | 31,938,659 | 12,993,000 | 999,000 | 2,502,656 | ||
| 79 | Mar 28, 2026 15:40 | 4,377 | 29,925,005 | 13,005,000 | 1,000,000 | 2,494,464 | ||
| 80 | Mar 28, 2026 15:37 | 4,379 | 31,246,704 | 14,012,000 | 0 | 2,494,464 | ||
| 81 | Mar 28, 2026 15:38 | 4,381 | 31,691,016 | 13,019,000 | 1,001,000 | 2,281,472 | ||
| 82 | Mar 28, 2026 15:38 | 4,381 | 36,360,176 | 14,018,000 | 0 | 2,506,752 | ||
| 83 | Mar 28, 2026 15:39 | 4,383 | 36,900,155 | 13,024,000 | 1,001,000 | 2,281,472 | ||
| 84 | Mar 28, 2026 15:37 | 4,383 | 28,837,179 | 12,023,000 | 2,003,000 | 2,494,464 | ||
| 85 | Mar 28, 2026 15:37 | 4,383 | 34,996,144 | 12,022,000 | 2,003,000 | 2,281,472 | ||
| 86 | Mar 28, 2026 15:38 | 4,384 | 33,409,644 | 12,025,000 | 2,004,000 | 2,498,560 | ||
| 87 | Mar 28, 2026 15:40 | 4,386 | 29,622,436 | 12,030,000 | 2,005,000 | 2,498,560 | ||
| 88 | Mar 28, 2026 15:38 | 4,386 | 32,094,894 | 13,033,000 | 1,002,000 | 2,498,560 | ||
| 89 | Mar 28, 2026 15:38 | 4,391 | 30,068,667 | 13,047,000 | 1,003,000 | 2,281,472 | ||
| 90 | Mar 28, 2026 15:39 | 4,402 | 30,920,954 | 13,081,000 | 1,006,000 | 2,494,464 |