Parse integers Sergey Svistunov

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.

Back to listFeb 24, 2026 19:28Daniel MastalerzDaniel MastalerzScore: 5,494Success
Source Code

Source code access is restricted. Log in to request access.

Challenge History

No challenges yet.

Run Statistics
#DateScoreWall TimeCPU UserCPU SystemMemoryError
1Feb 24, 2026 19:315,47667,016,60341,411,0004,040,0002,326,528
2Feb 24, 2026 19:285,47967,446,61242,441,0003,031,0002,265,088
3Feb 24, 2026 19:285,48668,250,23142,502,0003,035,0002,265,088
4Feb 24, 2026 19:285,48974,207,50442,521,0003,037,0002,523,136
5Feb 24, 2026 19:285,49070,040,84941,514,0004,050,0002,514,944
6Feb 24, 2026 19:285,49075,480,97742,533,0003,038,0002,514,944
7Feb 24, 2026 19:315,49270,598,60142,546,0003,039,0002,310,144
8Feb 24, 2026 19:315,49469,456,10843,575,0002,026,0002,273,280
9Feb 24, 2026 19:285,49972,697,18142,602,0003,043,0002,269,184
10Feb 24, 2026 19:315,57278,932,83942,223,0004,021,0002,306,048
11Feb 24, 2026 19:315,57673,176,29642,256,0004,024,0002,265,088
12Feb 24, 2026 19:285,58270,215,48742,304,0004,028,0002,318,336
13Feb 24, 2026 19:315,59076,342,06843,369,0003,025,0002,318,336
14Feb 24, 2026 19:285,60876,577,26843,515,0003,035,0002,285,568
15Feb 24, 2026 19:285,64173,956,96743,832,0002,988,0002,310,144