Parse integers 
Compute the sum of integers read from STDIN as fast as possible.
Input: 50 000 000 lines, each containing one integer in the range [0; 2147483647].
629871117
2024562523
1372689083
1021777120
2111176472
Output: The uint64 sum of all numbers, printed as a decimal string.
Note: Integer overflow is expected – use a 64-bit accumulator.
Josu San MartinSource 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 10, 2026 18:22 | 4,894 | 68,133,504 | 39,609,000 | 1,015,000 | 2,412,544 | ||
| 2 | Mar 10, 2026 18:22 | 4,920 | 66,548,759 | 39,842,000 | 996,000 | 2,420,736 | ||
| 3 | Mar 10, 2026 18:22 | 4,928 | 67,051,006 | 38,905,000 | 1,995,000 | 2,281,472 | ||
| 4 | Mar 10, 2026 18:22 | 4,936 | 61,224,147 | 38,971,000 | 1,998,000 | 2,281,472 | ||
| 5 | Mar 10, 2026 18:22 | 4,952 | 68,742,865 | 39,098,000 | 2,005,000 | 2,424,832 | ||
| 6 | Mar 10, 2026 18:22 | 4,989 | 64,093,624 | 40,400,000 | 1,010,000 | 2,281,472 | ||
| 7 | Apr 12, 2026 19:14 | 4,996 | 72,083,783 | 40,455,000 | 1,011,000 | 2,285,568 | ||
| 8 | Mar 23, 2026 13:22 | 4,997 | 65,070,368 | 40,463,000 | 1,011,000 | 2,285,568 | ||
| 9 | Apr 12, 2026 19:14 | 4,999 | 63,348,365 | 40,477,000 | 1,011,000 | 2,408,448 | ||
| 10 | Apr 12, 2026 19:23 | 5,002 | 66,624,753 | 40,502,000 | 1,012,000 | 2,285,568 | ||
| 11 | Mar 23, 2026 02:24 | 5,002 | 62,680,480 | 40,501,000 | 1,012,000 | 2,506,752 | ||
| 12 | Mar 10, 2026 18:22 | 5,004 | 77,609,983 | 40,521,000 | 1,013,000 | 2,420,736 | ||
| 13 | Apr 12, 2026 19:23 | 5,008 | 67,895,078 | 40,551,000 | 1,013,000 | 2,285,568 | ||
| 14 | Mar 23, 2026 02:24 | 5,011 | 72,581,802 | 40,576,000 | 1,014,000 | 2,408,448 | ||
| 15 | Apr 12, 2026 22:00 | 5,017 | 66,587,793 | 40,625,000 | 1,015,000 | 2,281,472 | ||
| 16 | Apr 13, 2026 00:40 | 5,037 | 72,757,996 | 39,817,000 | 1,990,000 | 2,400,256 | ||
| 17 | Mar 23, 2026 02:24 | 5,038 | 65,931,775 | 39,828,000 | 1,991,000 | 2,412,544 | ||
| 18 | Mar 23, 2026 02:28 | 5,039 | 63,462,705 | 39,831,000 | 1,991,000 | 2,412,544 | ||
| 19 | Apr 12, 2026 22:00 | 5,040 | 67,438,087 | 39,838,000 | 1,991,000 | 2,285,568 | ||
| 20 | Mar 23, 2026 02:25 | 5,042 | 64,667,408 | 39,858,000 | 1,992,000 | 2,285,568 | ||
| 21 | Mar 23, 2026 02:24 | 5,049 | 65,722,926 | 39,912,000 | 1,995,000 | 2,400,256 | ||
| 22 | Apr 12, 2026 19:23 | 5,051 | 70,120,876 | 39,927,000 | 1,996,000 | 2,285,568 | ||
| 23 | Apr 13, 2026 00:40 | 5,063 | 67,092,900 | 40,022,000 | 2,001,000 | 2,408,448 | ||
| 24 | Apr 12, 2026 22:02 | 5,064 | 62,316,865 | 40,030,000 | 2,001,000 | 2,506,752 | ||
| 25 | Mar 23, 2026 02:25 | 5,065 | 67,496,266 | 40,039,000 | 2,001,000 | 2,285,568 | ||
| 26 | Mar 23, 2026 02:24 | 5,067 | 66,870,665 | 40,053,000 | 2,002,000 | 2,404,352 | ||
| 27 | Apr 12, 2026 22:02 | 5,069 | 66,472,542 | 41,074,000 | 1,001,000 | 2,408,448 | ||
| 28 | Mar 23, 2026 13:22 | 5,083 | 64,318,977 | 40,184,000 | 2,009,000 | 2,285,568 | ||
| 29 | Apr 12, 2026 19:22 | 5,096 | 65,336,794 | 40,283,000 | 2,014,000 | 2,416,640 | ||
| 30 | Mar 21, 2026 05:13 | 5,098 | 68,882,020 | 41,308,000 | 1,007,000 | 2,277,376 | ||
| 31 | Apr 12, 2026 02:42 | 5,101 | 66,393,138 | 40,325,000 | 2,016,000 | 2,285,568 | ||
| 32 | Mar 10, 2026 18:22 | 5,103 | 67,021,727 | 41,351,000 | 1,008,000 | 2,408,448 | ||
| 33 | Apr 12, 2026 22:00 | 5,121 | 72,823,695 | 41,494,000 | 1,012,000 | 2,285,568 | ||
| 34 | Mar 23, 2026 02:26 | 5,123 | 63,544,226 | 42,520,000 | 0 | 2,285,568 | ||
| 35 | Mar 23, 2026 02:26 | 5,132 | 67,539,870 | 41,581,000 | 1,014,000 | 2,285,568 | ||
| 36 | Mar 23, 2026 02:26 | 5,143 | 73,757,580 | 41,669,000 | 1,016,000 | 2,412,544 | ||
| 37 | Mar 10, 2026 18:22 | 5,158 | 67,249,512 | 40,819,000 | 1,991,000 | 2,281,472 | ||
| 38 | Mar 23, 2026 02:25 | 5,161 | 68,326,930 | 40,848,000 | 1,992,000 | 2,285,568 | ||
| 39 | Apr 12, 2026 19:23 | 5,207 | 62,159,217 | 41,211,000 | 2,010,000 | 2,285,568 | ||
| 40 | Apr 12, 2026 19:22 | 5,217 | 66,388,412 | 42,291,000 | 1,006,000 | 2,408,448 | ||
| 41 | Apr 12, 2026 19:23 | 5,223 | 70,464,051 | 42,339,000 | 1,008,000 | 2,408,448 | ||
| 42 | Mar 21, 2026 05:13 | 5,226 | 65,919,236 | 42,367,000 | 1,008,000 | 2,281,472 | ||
| 43 | Apr 12, 2026 19:23 | 5,230 | 63,624,689 | 42,403,000 | 1,009,000 | 2,285,568 | ||
| 44 | Mar 23, 2026 02:26 | 5,238 | 69,361,231 | 42,463,000 | 1,011,000 | 2,281,472 | ||
| 45 | Apr 11, 2026 18:43 | 5,243 | 70,626,074 | 42,504,000 | 1,012,000 | 2,404,352 | ||
| 46 | Apr 11, 2026 18:43 | 5,254 | 72,540,066 | 42,591,000 | 1,014,000 | 2,285,568 | ||
| 47 | Mar 23, 2026 02:26 | 5,255 | 73,771,241 | 42,602,000 | 1,014,000 | 2,285,568 | ||
| 48 | Mar 23, 2026 02:24 | 5,256 | 68,841,512 | 42,611,000 | 1,014,000 | 2,281,472 | ||
| 49 | Mar 23, 2026 02:28 | 5,256 | 67,557,709 | 42,613,000 | 1,014,000 | 2,281,472 | ||
| 50 | Mar 10, 2026 18:22 | 5,257 | 70,390,938 | 41,653,000 | 1,983,000 | 2,408,448 | ||
| 51 | Apr 12, 2026 22:02 | 5,278 | 63,236,486 | 41,819,000 | 1,991,000 | 2,404,352 | ||
| 52 | Apr 12, 2026 19:22 | 5,282 | 65,777,949 | 41,850,000 | 1,992,000 | 2,285,568 | ||
| 53 | Apr 12, 2026 19:23 | 5,283 | 65,007,576 | 42,829,000 | 1,019,000 | 2,285,568 | ||
| 54 | Mar 23, 2026 02:26 | 5,284 | 67,982,718 | 41,865,000 | 1,993,000 | 2,498,560 | ||
| 55 | Mar 23, 2026 13:22 | 5,287 | 70,743,889 | 41,892,000 | 1,994,000 | 2,285,568 | ||
| 56 | Mar 23, 2026 02:24 | 5,296 | 69,709,556 | 41,956,000 | 1,997,000 | 2,285,568 | ||
| 57 | Apr 12, 2026 19:23 | 5,297 | 66,697,190 | 41,967,000 | 1,998,000 | 2,285,568 | ||
| 58 | Mar 23, 2026 02:25 | 5,299 | 65,349,434 | 41,985,000 | 1,999,000 | 2,285,568 | ||
| 59 | Mar 23, 2026 02:24 | 5,303 | 64,845,366 | 42,018,000 | 2,000,000 | 2,281,472 | ||
| 60 | Mar 23, 2026 02:26 | 5,311 | 68,443,273 | 42,082,000 | 2,003,000 | 2,285,568 | ||
| 61 | Mar 23, 2026 02:24 | 5,311 | 69,792,345 | 42,079,000 | 2,003,000 | 2,408,448 | ||
| 62 | Mar 23, 2026 02:24 | 5,316 | 65,848,897 | 42,121,000 | 2,005,000 | 2,404,352 | ||
| 63 | Mar 23, 2026 02:26 | 5,319 | 65,139,420 | 42,141,000 | 2,006,000 | 2,285,568 | ||
| 64 | Apr 12, 2026 19:14 | 5,327 | 66,212,161 | 42,203,000 | 2,009,000 | 2,285,568 | ||
| 65 | Apr 11, 2026 18:43 | 5,331 | 66,431,093 | 44,249,000 | 0 | 2,412,544 | ||
| 66 | Mar 23, 2026 02:26 | 5,334 | 68,330,028 | 42,264,000 | 2,012,000 | 2,404,352 | ||
| 67 | Apr 12, 2026 19:23 | 5,338 | 69,152,659 | 43,296,000 | 1,006,000 | 2,404,352 | ||
| 68 | Mar 23, 2026 02:24 | 5,342 | 63,029,010 | 42,320,000 | 2,015,000 | 2,404,352 | ||
| 69 | Mar 21, 2026 05:13 | 5,342 | 66,287,155 | 43,332,000 | 1,007,000 | 2,412,544 | ||
| 70 | Mar 10, 2026 18:22 | 5,344 | 65,794,783 | 43,347,000 | 1,008,000 | 2,404,352 | ||
| 71 | Mar 23, 2026 02:25 | 5,354 | 65,420,576 | 43,429,000 | 1,009,000 | 2,408,448 | ||
| 72 | Mar 10, 2026 18:22 | 5,354 | 69,261,920 | 43,432,000 | 1,010,000 | 2,408,448 | ||
| 73 | Apr 12, 2026 02:42 | 5,358 | 63,180,865 | 43,460,000 | 1,010,000 | 2,404,352 | ||
| 74 | Mar 23, 2026 02:25 | 5,365 | 65,577,942 | 43,518,000 | 1,012,000 | 2,285,568 | ||
| 75 | Mar 23, 2026 02:28 | 5,400 | 69,032,475 | 43,824,000 | 996,000 | 2,285,568 | ||
| 76 | Apr 12, 2026 02:42 | 5,422 | 73,569,983 | 43,000,000 | 2,000,000 | 2,285,568 | ||
| 77 | Apr 13, 2026 00:40 | 5,498 | 77,410,026 | 44,623,000 | 1,014,000 | 2,285,568 | ||
| 78 | Mar 23, 2026 02:24 | 7,781 | 93,188,764 | 63,573,000 | 1,009,000 | 2,404,352 |