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 15:24 | 4,329 | 34,722,600 | 13,853,000 | 0 | 2,494,464 | ||
| 2 | Mar 28, 2026 15:24 | 4,330 | 37,950,643 | 12,868,000 | 989,000 | 2,281,472 | ||
| 3 | Mar 28, 2026 15:25 | 4,332 | 40,209,153 | 11,883,000 | 1,980,000 | 2,490,368 | ||
| 4 | Mar 28, 2026 15:27 | 4,332 | 41,416,127 | 12,871,000 | 990,000 | 2,277,376 | ||
| 5 | Mar 28, 2026 15:26 | 4,333 | 33,481,873 | 12,877,000 | 990,000 | 2,498,560 | ||
| 6 | Mar 28, 2026 15:23 | 4,334 | 32,599,807 | 12,879,000 | 990,000 | 2,502,656 | ||
| 7 | Mar 28, 2026 15:26 | 4,334 | 31,033,476 | 12,879,000 | 990,000 | 2,494,464 | ||
| 8 | Mar 28, 2026 15:26 | 4,335 | 30,602,912 | 12,882,000 | 990,000 | 2,281,472 | ||
| 9 | Mar 28, 2026 15:25 | 4,336 | 31,963,222 | 12,885,000 | 991,000 | 2,498,560 | ||
| 10 | Mar 28, 2026 15:26 | 4,336 | 37,031,198 | 12,883,000 | 991,000 | 2,494,464 | ||
| 11 | Mar 28, 2026 15:23 | 4,336 | 29,777,448 | 12,885,000 | 991,000 | 2,498,560 | ||
| 12 | Mar 28, 2026 15:26 | 4,337 | 30,048,644 | 13,878,000 | 0 | 2,502,656 | ||
| 13 | Mar 28, 2026 15:24 | 4,337 | 36,628,634 | 12,886,000 | 991,000 | 2,494,464 | ||
| 14 | Mar 28, 2026 15:25 | 4,338 | 42,675,419 | 11,898,000 | 1,983,000 | 2,494,464 | ||
| 15 | Mar 28, 2026 15:24 | 4,338 | 43,506,262 | 12,891,000 | 991,000 | 2,494,464 | ||
| 16 | Mar 28, 2026 15:23 | 4,338 | 37,684,817 | 13,880,000 | 0 | 2,281,472 | ||
| 17 | Mar 28, 2026 15:23 | 4,339 | 28,918,047 | 12,894,000 | 991,000 | 2,498,560 | ||
| 18 | Mar 28, 2026 15:26 | 4,339 | 30,557,254 | 12,895,000 | 991,000 | 2,281,472 | ||
| 19 | Mar 28, 2026 15:26 | 4,339 | 29,438,715 | 12,895,000 | 991,000 | 2,490,368 | ||
| 20 | Mar 28, 2026 15:23 | 4,340 | 27,456,192 | 12,897,000 | 992,000 | 2,281,472 | ||
| 21 | Mar 28, 2026 15:25 | 4,340 | 33,648,263 | 12,896,000 | 992,000 | 2,281,472 | ||
| 22 | Mar 28, 2026 15:23 | 4,340 | 30,904,128 | 13,889,000 | 0 | 2,502,656 | ||
| 23 | Mar 28, 2026 15:25 | 4,340 | 35,964,755 | 12,897,000 | 992,000 | 2,281,472 | ||
| 24 | Mar 28, 2026 15:23 | 4,340 | 29,689,764 | 12,896,000 | 992,000 | 2,490,368 | ||
| 25 | Mar 28, 2026 15:27 | 4,340 | 27,101,789 | 12,897,000 | 992,000 | 2,502,656 | ||
| 26 | Mar 28, 2026 15:25 | 4,340 | 31,253,852 | 12,897,000 | 992,000 | 2,494,464 | ||
| 27 | Mar 28, 2026 15:25 | 4,341 | 34,372,559 | 12,900,000 | 992,000 | 2,490,368 | ||
| 28 | Mar 28, 2026 15:24 | 4,341 | 41,139,189 | 12,898,000 | 992,000 | 2,498,560 | ||
| 29 | Mar 28, 2026 15:23 | 4,341 | 34,053,186 | 12,899,000 | 992,000 | 2,494,464 | ||
| 30 | Mar 28, 2026 15:26 | 4,342 | 28,703,804 | 12,901,000 | 992,000 | 2,281,472 | ||
| 31 | Mar 28, 2026 15:26 | 4,342 | 33,293,006 | 12,901,000 | 992,000 | 2,281,472 | ||
| 32 | Mar 28, 2026 15:25 | 4,342 | 27,885,516 | 12,903,000 | 992,000 | 2,502,656 | ||
| 33 | Mar 28, 2026 15:23 | 4,342 | 31,318,370 | 12,901,000 | 992,000 | 2,502,656 | ||
| 34 | Mar 28, 2026 15:23 | 4,342 | 36,624,587 | 12,903,000 | 992,000 | 2,281,472 | ||
| 35 | Mar 28, 2026 15:23 | 4,343 | 30,197,280 | 12,904,000 | 992,000 | 2,490,368 | ||
| 36 | Mar 28, 2026 15:25 | 4,345 | 30,580,640 | 12,912,000 | 993,000 | 2,281,472 | ||
| 37 | Mar 28, 2026 15:26 | 4,346 | 32,636,102 | 12,913,000 | 993,000 | 2,494,464 | ||
| 38 | Mar 28, 2026 15:23 | 4,346 | 31,647,164 | 12,915,000 | 993,000 | 2,281,472 | ||
| 39 | Mar 28, 2026 15:25 | 4,347 | 29,961,110 | 12,917,000 | 993,000 | 2,494,464 | ||
| 40 | Mar 28, 2026 15:26 | 4,348 | 35,890,635 | 12,919,000 | 993,000 | 2,494,464 | ||
| 41 | Mar 28, 2026 15:24 | 4,348 | 26,807,797 | 13,915,000 | 0 | 2,494,464 | ||
| 42 | Mar 28, 2026 15:26 | 4,349 | 32,063,624 | 12,924,000 | 994,000 | 2,281,472 | ||
| 43 | Mar 28, 2026 15:25 | 4,350 | 29,481,737 | 12,925,000 | 994,000 | 2,281,472 | ||
| 44 | Mar 28, 2026 15:27 | 4,351 | 36,759,414 | 12,929,000 | 994,000 | 2,281,472 | ||
| 45 | Mar 28, 2026 15:26 | 4,351 | 31,036,164 | 13,924,000 | 0 | 2,281,472 | ||
| 46 | Mar 28, 2026 15:24 | 4,351 | 31,902,034 | 12,930,000 | 994,000 | 2,494,464 | ||
| 47 | Mar 28, 2026 15:23 | 4,352 | 29,959,025 | 12,933,000 | 994,000 | 2,486,272 | ||
| 48 | Mar 28, 2026 15:25 | 4,352 | 34,631,206 | 12,931,000 | 994,000 | 2,498,560 | ||
| 49 | Mar 28, 2026 15:26 | 4,352 | 27,026,897 | 11,937,000 | 1,989,000 | 2,502,656 | ||
| 50 | Mar 28, 2026 15:25 | 4,353 | 36,691,132 | 12,934,000 | 994,000 | 2,498,560 | ||
| 51 | Mar 28, 2026 15:26 | 4,353 | 41,938,999 | 12,935,000 | 995,000 | 2,494,464 | ||
| 52 | Mar 28, 2026 15:24 | 4,353 | 39,808,288 | 12,935,000 | 995,000 | 2,490,368 | ||
| 53 | Mar 28, 2026 15:25 | 4,354 | 38,345,113 | 12,939,000 | 995,000 | 2,281,472 | ||
| 54 | Mar 28, 2026 15:24 | 4,354 | 38,628,988 | 13,934,000 | 0 | 2,281,472 | ||
| 55 | Mar 28, 2026 15:24 | 4,355 | 36,422,739 | 12,941,000 | 995,000 | 2,498,560 | ||
| 56 | Mar 28, 2026 15:25 | 4,355 | 32,796,611 | 12,942,000 | 995,000 | 2,281,472 | ||
| 57 | Mar 28, 2026 15:23 | 4,355 | 37,567,300 | 12,941,000 | 995,000 | 2,281,472 | ||
| 58 | Mar 28, 2026 15:27 | 4,358 | 31,174,768 | 12,948,000 | 996,000 | 2,281,472 | ||
| 59 | Mar 28, 2026 15:23 | 4,358 | 33,680,551 | 12,951,000 | 996,000 | 2,498,560 | ||
| 60 | Mar 28, 2026 15:26 | 4,359 | 28,938,713 | 12,952,000 | 996,000 | 2,502,656 | ||
| 61 | Mar 28, 2026 15:23 | 4,359 | 40,045,906 | 12,953,000 | 996,000 | 2,281,472 | ||
| 62 | Mar 28, 2026 15:23 | 4,359 | 29,556,949 | 12,953,000 | 996,000 | 2,498,560 | ||
| 63 | Mar 28, 2026 15:24 | 4,360 | 31,494,653 | 12,957,000 | 996,000 | 2,490,368 | ||
| 64 | Mar 28, 2026 15:26 | 4,361 | 38,293,614 | 12,959,000 | 996,000 | 2,498,560 | ||
| 65 | Mar 28, 2026 15:24 | 4,361 | 31,389,687 | 12,958,000 | 996,000 | 2,498,560 | ||
| 66 | Mar 28, 2026 15:24 | 4,361 | 34,546,929 | 12,959,000 | 996,000 | 2,498,560 | ||
| 67 | Mar 28, 2026 15:23 | 4,362 | 41,916,057 | 12,962,000 | 997,000 | 2,494,464 | ||
| 68 | Mar 28, 2026 15:24 | 4,362 | 33,837,131 | 12,962,000 | 997,000 | 2,502,656 | ||
| 69 | Mar 28, 2026 15:24 | 4,362 | 32,847,393 | 12,962,000 | 997,000 | 2,490,368 | ||
| 70 | Mar 28, 2026 15:27 | 4,363 | 33,640,306 | 12,963,000 | 997,000 | 2,494,464 | ||
| 71 | Mar 28, 2026 15:26 | 4,364 | 41,543,794 | 12,967,000 | 997,000 | 2,490,368 | ||
| 72 | Mar 28, 2026 15:25 | 4,364 | 40,786,149 | 12,969,000 | 997,000 | 2,281,472 | ||
| 73 | Mar 28, 2026 15:25 | 4,364 | 31,588,682 | 12,969,000 | 997,000 | 2,281,472 | ||
| 74 | Mar 28, 2026 15:24 | 4,364 | 34,351,397 | 11,971,000 | 1,995,000 | 2,490,368 | ||
| 75 | Mar 28, 2026 15:23 | 4,368 | 36,717,290 | 12,981,000 | 998,000 | 2,281,472 | ||
| 76 | Mar 28, 2026 15:25 | 4,368 | 30,764,396 | 12,979,000 | 998,000 | 2,281,472 | ||
| 77 | Mar 28, 2026 15:26 | 4,368 | 36,895,771 | 12,980,000 | 998,000 | 2,281,472 | ||
| 78 | Mar 28, 2026 15:27 | 4,371 | 29,766,581 | 12,988,000 | 999,000 | 2,539,520 | ||
| 79 | Mar 28, 2026 15:23 | 4,372 | 36,814,118 | 12,992,000 | 999,000 | 2,498,560 | ||
| 80 | Mar 28, 2026 15:25 | 4,373 | 30,816,832 | 12,995,000 | 999,000 | 2,498,560 | ||
| 81 | Mar 28, 2026 15:25 | 4,374 | 26,766,163 | 11,997,000 | 1,999,000 | 2,486,272 | ||
| 82 | Mar 28, 2026 15:24 | 4,376 | 40,723,141 | 12,003,000 | 2,000,000 | 2,498,560 | ||
| 83 | Mar 28, 2026 15:24 | 4,377 | 39,059,792 | 13,005,000 | 1,000,000 | 2,498,560 | ||
| 84 | Mar 28, 2026 15:24 | 4,378 | 36,265,890 | 13,010,000 | 1,000,000 | 2,281,472 | ||
| 85 | Mar 28, 2026 15:24 | 4,380 | 30,223,016 | 13,014,000 | 1,001,000 | 2,281,472 | ||
| 86 | Mar 28, 2026 15:23 | 4,380 | 40,984,299 | 13,015,000 | 1,001,000 | 2,535,424 | ||
| 87 | Mar 28, 2026 15:26 | 4,385 | 30,159,392 | 13,030,000 | 1,002,000 | 2,490,368 | ||
| 88 | Mar 28, 2026 15:24 | 4,389 | 26,157,562 | 13,041,000 | 1,003,000 | 2,494,464 | ||
| 89 | Mar 28, 2026 15:26 | 4,391 | 27,463,395 | 12,045,000 | 2,007,000 | 2,502,656 | ||
| 90 | Mar 28, 2026 15:25 | 4,650 | 44,783,089 | 14,881,000 | 0 | 2,494,464 |