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 09:13 | 4,384 | 26,106,410 | 12,025,000 | 2,004,000 | 2,285,568 | ||
| 2 | Mar 28, 2026 09:03 | 4,387 | 25,728,625 | 12,034,000 | 2,005,000 | 2,408,448 | ||
| 3 | Mar 28, 2026 09:04 | 4,388 | 32,809,692 | 13,038,000 | 1,002,000 | 2,285,568 | ||
| 4 | Mar 28, 2026 09:03 | 4,389 | 29,560,709 | 12,038,000 | 2,006,000 | 2,412,544 | ||
| 5 | Mar 28, 2026 09:16 | 4,389 | 30,805,091 | 12,039,000 | 2,006,000 | 2,408,448 | ||
| 6 | Mar 28, 2026 09:05 | 4,390 | 39,046,067 | 12,042,000 | 2,007,000 | 2,404,352 | ||
| 7 | Mar 28, 2026 09:07 | 4,391 | 34,912,202 | 12,044,000 | 2,007,000 | 2,408,448 | ||
| 8 | Mar 28, 2026 09:04 | 4,392 | 44,486,641 | 13,050,000 | 1,003,000 | 2,285,568 | ||
| 9 | Mar 28, 2026 09:16 | 4,393 | 34,589,945 | 13,055,000 | 1,004,000 | 2,396,160 | ||
| 10 | Mar 28, 2026 09:14 | 4,396 | 40,990,151 | 12,057,000 | 2,009,000 | 2,396,160 | ||
| 11 | Mar 28, 2026 09:03 | 4,398 | 31,569,145 | 12,063,000 | 2,010,000 | 2,285,568 | ||
| 12 | Mar 28, 2026 09:06 | 4,399 | 30,180,065 | 12,067,000 | 2,011,000 | 2,412,544 | ||
| 13 | Mar 28, 2026 09:07 | 4,400 | 35,916,189 | 12,068,000 | 2,011,000 | 2,412,544 | ||
| 14 | Mar 28, 2026 09:15 | 4,400 | 26,901,486 | 12,068,000 | 2,011,000 | 2,277,376 | ||
| 15 | Mar 28, 2026 09:07 | 4,400 | 34,203,649 | 12,070,000 | 2,011,000 | 2,285,568 | ||
| 16 | Mar 28, 2026 09:03 | 4,402 | 37,697,333 | 12,073,000 | 2,012,000 | 2,412,544 | ||
| 17 | Mar 28, 2026 09:04 | 4,402 | 29,033,820 | 12,074,000 | 2,012,000 | 2,281,472 | ||
| 18 | Mar 28, 2026 09:06 | 4,402 | 28,954,668 | 12,075,000 | 2,012,000 | 2,404,352 | ||
| 19 | Mar 28, 2026 09:03 | 4,402 | 31,394,528 | 12,074,000 | 2,012,000 | 2,285,568 | ||
| 20 | Mar 28, 2026 09:15 | 4,403 | 29,510,765 | 13,085,000 | 1,006,000 | 2,404,352 | ||
| 21 | Mar 28, 2026 09:13 | 4,403 | 37,378,821 | 12,076,000 | 2,012,000 | 2,404,352 | ||
| 22 | Mar 28, 2026 09:11 | 4,404 | 35,261,591 | 13,088,000 | 1,006,000 | 2,285,568 | ||
| 23 | Mar 28, 2026 09:11 | 4,404 | 30,350,577 | 12,081,000 | 2,013,000 | 2,285,568 | ||
| 24 | Mar 28, 2026 09:06 | 4,405 | 30,816,501 | 12,082,000 | 2,013,000 | 2,404,352 | ||
| 25 | Mar 28, 2026 09:14 | 4,406 | 34,143,343 | 12,086,000 | 2,014,000 | 2,408,448 | ||
| 26 | Mar 28, 2026 09:05 | 4,406 | 29,987,088 | 13,091,000 | 1,007,000 | 2,408,448 | ||
| 27 | Mar 28, 2026 09:12 | 4,408 | 32,746,417 | 12,092,000 | 2,015,000 | 2,285,568 | ||
| 28 | Mar 28, 2026 09:06 | 4,409 | 31,371,501 | 12,094,000 | 2,015,000 | 2,412,544 | ||
| 29 | Mar 28, 2026 09:06 | 4,409 | 31,062,608 | 13,102,000 | 1,007,000 | 2,412,544 | ||
| 30 | Mar 28, 2026 09:07 | 4,409 | 31,842,488 | 12,095,000 | 2,015,000 | 2,408,448 | ||
| 31 | Mar 28, 2026 09:13 | 4,409 | 31,929,545 | 12,093,000 | 2,015,000 | 2,396,160 | ||
| 32 | Mar 28, 2026 09:04 | 4,410 | 36,315,152 | 12,096,000 | 2,016,000 | 2,285,568 | ||
| 33 | Mar 28, 2026 09:15 | 4,411 | 30,123,823 | 12,098,000 | 2,016,000 | 2,404,352 | ||
| 34 | Mar 28, 2026 09:14 | 4,411 | 33,572,405 | 12,100,000 | 2,016,000 | 2,396,160 | ||
| 35 | Mar 28, 2026 09:05 | 4,412 | 29,275,064 | 13,109,000 | 1,008,000 | 2,404,352 | ||
| 36 | Mar 28, 2026 09:15 | 4,412 | 31,122,324 | 13,110,000 | 1,008,000 | 2,412,544 | ||
| 37 | Mar 28, 2026 09:13 | 4,413 | 29,962,692 | 12,106,000 | 2,017,000 | 2,404,352 | ||
| 38 | Mar 28, 2026 09:04 | 4,413 | 30,282,820 | 12,104,000 | 2,017,000 | 2,285,568 | ||
| 39 | Mar 28, 2026 09:05 | 4,414 | 29,689,411 | 12,108,000 | 2,018,000 | 2,285,568 | ||
| 40 | Mar 28, 2026 09:12 | 4,414 | 32,481,033 | 12,107,000 | 2,017,000 | 2,285,568 | ||
| 41 | Mar 28, 2026 09:14 | 4,415 | 32,407,672 | 12,110,000 | 2,018,000 | 2,396,160 | ||
| 42 | Mar 28, 2026 09:05 | 4,417 | 29,617,422 | 12,116,000 | 2,019,000 | 2,285,568 | ||
| 43 | Mar 28, 2026 09:05 | 4,418 | 40,090,128 | 11,107,000 | 3,029,000 | 2,408,448 | ||
| 44 | Mar 28, 2026 09:07 | 4,418 | 35,842,970 | 13,127,000 | 1,009,000 | 2,285,568 | ||
| 45 | Mar 28, 2026 09:07 | 4,418 | 33,610,265 | 12,118,000 | 2,019,000 | 2,408,448 | ||
| 46 | Mar 28, 2026 09:02 | 4,419 | 29,474,003 | 12,122,000 | 2,020,000 | 2,285,568 | ||
| 47 | Mar 28, 2026 09:04 | 4,419 | 31,382,392 | 13,132,000 | 1,010,000 | 2,285,568 | ||
| 48 | Mar 28, 2026 09:03 | 4,420 | 29,746,866 | 13,135,000 | 1,010,000 | 2,392,064 | ||
| 49 | Mar 28, 2026 09:03 | 4,420 | 31,695,104 | 13,135,000 | 1,010,000 | 2,285,568 | ||
| 50 | Mar 28, 2026 09:04 | 4,421 | 29,560,198 | 12,127,000 | 2,021,000 | 2,285,568 | ||
| 51 | Mar 28, 2026 09:04 | 4,422 | 31,303,718 | 13,141,000 | 1,010,000 | 2,285,568 | ||
| 52 | Mar 28, 2026 09:02 | 4,423 | 30,555,576 | 12,133,000 | 2,022,000 | 2,412,544 | ||
| 53 | Mar 28, 2026 09:14 | 4,424 | 34,752,131 | 13,147,000 | 1,011,000 | 2,285,568 | ||
| 54 | Mar 28, 2026 09:04 | 4,424 | 31,361,987 | 13,145,000 | 1,011,000 | 2,281,472 | ||
| 55 | Mar 28, 2026 09:11 | 4,424 | 31,641,649 | 13,146,000 | 1,011,000 | 2,408,448 | ||
| 56 | Mar 28, 2026 09:06 | 4,425 | 26,678,177 | 12,137,000 | 2,022,000 | 2,408,448 | ||
| 57 | Mar 28, 2026 09:03 | 4,425 | 44,413,694 | 12,137,000 | 2,022,000 | 2,408,448 | ||
| 58 | Mar 28, 2026 09:05 | 4,425 | 28,882,769 | 12,138,000 | 2,023,000 | 2,285,568 | ||
| 59 | Mar 28, 2026 09:07 | 4,426 | 35,332,338 | 13,153,000 | 1,011,000 | 2,412,544 | ||
| 60 | Mar 28, 2026 09:04 | 4,426 | 30,487,781 | 13,151,000 | 1,011,000 | 2,519,040 | ||
| 61 | Mar 28, 2026 09:02 | 4,427 | 35,717,454 | 13,155,000 | 1,011,000 | 2,285,568 | ||
| 62 | Mar 28, 2026 09:15 | 4,427 | 40,323,208 | 12,142,000 | 2,023,000 | 2,510,848 | ||
| 63 | Mar 28, 2026 09:03 | 4,427 | 31,593,806 | 12,143,000 | 2,023,000 | 2,285,568 | ||
| 64 | Mar 28, 2026 09:13 | 4,427 | 29,977,325 | 12,143,000 | 2,023,000 | 2,392,064 | ||
| 65 | Mar 28, 2026 09:16 | 4,429 | 31,980,739 | 13,161,000 | 1,012,000 | 2,285,568 | ||
| 66 | Mar 28, 2026 09:07 | 4,429 | 29,732,143 | 12,149,000 | 2,024,000 | 2,404,352 | ||
| 67 | Mar 28, 2026 09:05 | 4,430 | 42,435,453 | 13,163,000 | 1,012,000 | 2,404,352 | ||
| 68 | Mar 28, 2026 09:14 | 4,430 | 26,035,241 | 12,151,000 | 2,025,000 | 2,400,256 | ||
| 69 | Mar 28, 2026 09:06 | 4,430 | 32,621,892 | 13,163,000 | 1,012,000 | 2,285,568 | ||
| 70 | Mar 28, 2026 09:13 | 4,430 | 32,316,351 | 12,152,000 | 2,025,000 | 2,285,568 | ||
| 71 | Mar 28, 2026 09:05 | 4,430 | 29,420,413 | 12,150,000 | 2,025,000 | 2,408,448 | ||
| 72 | Mar 28, 2026 09:06 | 4,431 | 31,668,826 | 12,155,000 | 2,025,000 | 2,412,544 | ||
| 73 | Mar 28, 2026 09:12 | 4,432 | 42,513,966 | 12,157,000 | 2,026,000 | 2,285,568 | ||
| 74 | Mar 28, 2026 09:05 | 4,433 | 32,413,299 | 12,161,000 | 2,026,000 | 2,404,352 | ||
| 75 | Mar 28, 2026 09:05 | 4,436 | 34,455,249 | 12,167,000 | 2,027,000 | 2,404,352 | ||
| 76 | Mar 28, 2026 09:03 | 4,436 | 34,733,967 | 12,168,000 | 2,028,000 | 2,404,352 | ||
| 77 | Mar 28, 2026 09:03 | 4,436 | 31,959,857 | 12,168,000 | 2,028,000 | 2,416,640 | ||
| 78 | Mar 28, 2026 09:04 | 4,437 | 28,710,642 | 13,184,000 | 1,014,000 | 2,412,544 | ||
| 79 | Mar 28, 2026 09:06 | 4,437 | 31,494,402 | 12,171,000 | 2,028,000 | 2,285,568 | ||
| 80 | Mar 28, 2026 09:12 | 4,438 | 30,279,904 | 12,174,000 | 2,029,000 | 2,404,352 | ||
| 81 | Mar 28, 2026 09:03 | 4,439 | 31,218,844 | 12,177,000 | 2,029,000 | 2,404,352 | ||
| 82 | Mar 28, 2026 09:06 | 4,440 | 33,378,617 | 12,179,000 | 2,029,000 | 2,408,448 | ||
| 83 | Mar 28, 2026 09:06 | 4,441 | 34,195,188 | 13,195,000 | 1,015,000 | 2,285,568 | ||
| 84 | Mar 28, 2026 09:06 | 4,442 | 30,001,963 | 12,185,000 | 2,030,000 | 2,285,568 | ||
| 85 | Mar 28, 2026 09:12 | 4,442 | 30,173,017 | 12,184,000 | 2,030,000 | 2,408,448 | ||
| 86 | Mar 28, 2026 09:07 | 4,443 | 33,501,368 | 13,202,000 | 1,015,000 | 2,285,568 | ||
| 87 | Mar 28, 2026 09:04 | 4,446 | 46,651,591 | 12,195,000 | 2,032,000 | 2,285,568 | ||
| 88 | Mar 28, 2026 09:05 | 4,447 | 29,360,090 | 13,215,000 | 1,016,000 | 2,404,352 | ||
| 89 | Mar 28, 2026 09:12 | 4,449 | 35,437,804 | 12,204,000 | 2,034,000 | 2,285,568 | ||
| 90 | Mar 28, 2026 09:15 | 4,455 | 40,512,704 | 13,239,000 | 1,018,000 | 2,412,544 |