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 7, 2026 20:37Dmitry YudakovDmitry YudakovScore: 75,966Success
Source Code

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

Challenge History

No challenges yet.

Run Statistics
#DateScoreWall TimeCPU UserCPU SystemMemoryError
1Apr 27, 2025 12:4975,907659,359,773628,026,0002,000,0002,514,944
2Jan 7, 2026 20:3775,915659,363,076628,096,0002,000,0002,551,808
3Jan 7, 2026 20:3775,919657,956,084628,124,0002,000,0002,523,136
4Apr 27, 2025 12:4975,931655,693,087628,224,0002,000,0002,293,760
5Jan 7, 2026 20:3775,935661,651,529628,261,0002,000,0002,293,760
6Jan 7, 2026 20:3775,939660,395,074629,295,0001,000,0002,301,952
7Apr 27, 2025 12:4975,950659,690,888628,386,0002,001,0002,547,712
8Apr 27, 2025 12:4975,951661,594,500625,395,0004,995,0002,514,944
9Jan 7, 2026 20:3775,953658,881,489627,410,0002,997,0002,502,656
10Jan 7, 2026 20:3775,954659,321,203627,420,0002,997,0002,502,656
11Apr 27, 2025 12:4975,966655,458,400629,522,000999,0002,293,760
12Jan 7, 2026 20:3775,968658,684,505629,534,000999,0002,297,856
13Apr 27, 2025 12:4975,970657,062,782628,557,0001,998,0002,347,008
14Jan 7, 2026 20:3775,977660,512,881627,618,0002,993,0002,543,616
15Apr 27, 2025 12:4975,981659,230,504628,643,0001,998,0002,547,712
16Apr 27, 2025 12:4975,983659,917,796628,664,0001,998,0002,551,808
17Jan 7, 2026 20:3775,986655,104,779628,684,0001,998,0002,506,752
18Apr 27, 2025 12:4975,988655,170,404626,706,0003,998,0002,510,848
19Jan 7, 2026 20:3776,023655,714,760627,988,0002,999,0002,506,752
20Jan 7, 2026 20:3776,145697,555,761628,057,0003,943,0002,547,712
21Jan 7, 2026 20:3776,148693,245,366628,038,0003,993,0002,297,856