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 listJan 2, 2026 17:25Josu San MartinJosu San MartinScore: 5,810Success
Source Code

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

Challenge History

No challenges yet.

Run Statistics
#DateScoreWall TimeCPU UserCPU SystemMemoryError
1Jan 2, 2026 17:275,53975,865,69943,972,0001,998,0002,453,504
2Jan 2, 2026 17:275,58673,994,98245,356,0001,007,0002,363,392
3Jan 2, 2026 17:255,59372,434,32045,411,0001,009,0002,293,760
4Jan 2, 2026 17:255,59574,469,88846,442,00002,453,504
5Jan 2, 2026 17:275,59869,916,36445,452,0001,010,0002,293,760
6Jan 2, 2026 17:275,60475,179,18345,506,0001,011,0002,293,760
7Jan 2, 2026 17:255,61374,851,23346,592,00002,293,760
8Jan 2, 2026 17:255,61574,378,26846,601,00002,355,200
9Jan 2, 2026 17:275,64374,967,94444,844,0001,993,0002,359,296
10Jan 2, 2026 17:275,78580,046,11646,019,0002,000,0002,519,040
11Jan 2, 2026 17:255,79674,081,51448,103,00002,293,760
12Jan 2, 2026 17:255,80471,163,59547,172,0001,003,0002,367,488
13Jan 2, 2026 17:275,81069,327,68047,220,0001,004,0002,359,296
14Jan 2, 2026 17:255,82275,848,57847,319,0001,006,0002,293,760
15Jan 2, 2026 17:255,87874,927,99447,789,000995,0002,359,296
16Jan 2, 2026 17:255,90474,767,89947,006,0002,000,0002,359,296
17Jan 2, 2026 17:255,90774,494,62647,028,0002,001,0002,355,200
18Jan 2, 2026 17:275,91270,239,14548,072,0001,001,0002,281,472
19Jan 2, 2026 17:275,92669,805,47347,180,0002,007,0002,461,696
20Jan 2, 2026 17:275,94378,776,30249,328,00002,293,760
21Jan 2, 2026 17:255,94675,548,93348,345,0001,007,0002,371,584
22Jan 2, 2026 17:255,94772,208,52448,354,0001,007,0002,367,488
23Jan 2, 2026 17:275,96071,693,11348,457,0001,009,0002,293,760
24Jan 2, 2026 17:275,96777,423,37349,525,00002,355,200