Large integer multiplication 
Multiply two large unsigned integers as fast as possible.
Input
Exactly 500,000 bytes on STDIN: two unsigned integers encoded back-to-back, each 250,000 bytes, in little-endian byte order.
Output
Write exactly 500,000 bytes to STDOUT containing the product in little-endian byte order.
| Date | Author | Language | Status | Score | |
|---|---|---|---|---|---|
| Dec 23, 2025 04:58 | CPPclang++18.1.3 | Error | |||
| Dec 23, 2025 04:57 | CPPg++13.3.0 | Success | 51,381+0.56 RP | ||
| Dec 23, 2025 04:55 | CPPg++13.3.0 | Success | 51,529+11.34 RP | ||
| Dec 23, 2025 04:55 | CPPg++13.3.0 | Error | |||
| Dec 23, 2025 04:48 | CPPg++13.3.0 | Success | 54,726+48.46 RP | ||
| Dec 23, 2025 04:48 | RUSTrust-1.92.0 | Success | 74,478+95.08 RP | ||
| Dec 23, 2025 04:43 | RUSTrust-1.92.0 | Success | 290,740 | ||
| Dec 23, 2025 04:43 | CPPg++13.3.0 | Success | 255,203+39.18 RP | ||
| Dec 23, 2025 04:36 | CPPg++13.3.0 | Error | |||
| Dec 23, 2025 04:30 | RUSTrust-1.92.0 | Error | |||
| Dec 22, 2025 18:01 | CPPg++13.3.0 | Error | |||
| Nov 18, 2025 22:20 | CPPclang++18.1.3 | Success | 4,134 | ||
| Nov 18, 2025 22:06 | CPPg++13.3.0 | Success | 4,027 | ||
| Nov 18, 2025 22:05 | CPPclang++18.1.3 | Success | 4,047 | ||
| Nov 18, 2025 22:04 | CPPg++13.3.0 | Success | 4,014+12.35 RP | ||
| Nov 18, 2025 22:01 | CPPg++13.3.0 | Success | 4,052 | ||
| Nov 18, 2025 21:56 | CPPg++13.3.0 | Success | 4,042 | ||
| Nov 18, 2025 21:55 | CPPg++13.3.0 | Success | 4,034+16.48 RP | ||
| Nov 18, 2025 21:08 | CPPg++13.3.0 | Success | 4,061+2'060.23 RP | ||
| Nov 18, 2025 18:56 | CPPg++13.3.0 | Error | |||
| Nov 18, 2025 18:53 | CPPg++13.3.0 | Error | |||
| Nov 18, 2025 18:44 | CPPg++13.3.0 | Error | |||
| Nov 18, 2025 18:38 | CPPg++13.3.0 | Error | |||
| Nov 18, 2025 18:31 | CPPg++13.3.0 | Error | |||
| Nov 18, 2025 18:28 | CPPg++13.3.0 | Error | |||
| Nov 18, 2025 18:16 | CPPg++13.3.0 | Error | |||
| Nov 18, 2025 18:13 | CPPg++13.3.0 | Error | |||
| Nov 18, 2025 18:10 | CPPg++13.3.0 | Error | |||
| Nov 18, 2025 18:00 | CPPg++13.3.0 | Error | |||
| Nov 18, 2025 17:55 | CPPg++13.3.0 | Error | |||
| Nov 18, 2025 17:53 | CPPg++13.3.0 | Error | |||
| Nov 18, 2025 17:41 | CPPg++13.3.0 | Error | |||
| Nov 17, 2025 17:14 | CPPg++13.3.0 | Success | 24,966 | ||
| Nov 17, 2025 17:11 | CPPg++13.3.0 | Success | 25,016 | ||
| Nov 17, 2025 17:09 | CPPg++13.3.0 | Success | 24,902 | ||
| Nov 17, 2025 16:44 | CPPg++13.3.0 | Success | 24,862+0.50 RP | ||
| Nov 17, 2025 06:58 | CPPg++13.3.0 | Success | 24,929 | ||
| Nov 17, 2025 06:57 | CPPg++13.3.0 | Success | 24,893+144.83 RP | ||
| Nov 17, 2025 06:52 | CPPg++13.3.0 | Error | |||
| Nov 17, 2025 06:35 | CPPg++13.3.0 | Error | |||
| Nov 17, 2025 06:30 | CPPg++13.3.0 | Error | |||
| Nov 17, 2025 06:21 | CPPg++13.3.0 | Success | 39,057 | ||
| Nov 17, 2025 06:13 | CPPg++13.3.0 | Success | 38,928+0.74 RP | ||
| Nov 17, 2025 06:13 | CPPg++13.3.0 | Success | 42,722 | ||
| Nov 17, 2025 06:12 | CPPclang++18.1.3 | Success | 40,731 | ||
| Nov 17, 2025 06:12 | CPPg++13.3.0 | Success | 39,040+5.71 RP | ||
| Nov 17, 2025 06:04 | CPPg++13.3.0 | Success | 39,930+3.82 RP | ||
| Nov 17, 2025 06:02 | CPPg++13.3.0 | Success | 40,616 | ||
| Nov 17, 2025 05:47 | CPPg++13.3.0 | Success | 40,549+0.75 RP | ||
| Nov 17, 2025 05:33 | CPPg++13.3.0 | Success | 40,673+51.59 RP | ||
| Nov 17, 2025 05:31 | CPPg++13.3.0 | Success | 51,474+12.40 RP | ||
| Nov 17, 2025 05:10 | CPPg++13.3.0 | Error | |||
| Nov 17, 2025 05:10 | CPPg++13.3.0 | Error | |||
| Nov 17, 2025 05:08 | CPPg++13.3.0 | Error | |||
| Nov 17, 2025 05:05 | CPPg++13.3.0 | Error | |||
| Nov 16, 2025 14:04 | CPPg++13.3.0 | Success | 6,212+13.87 RP | ||
| Nov 16, 2025 13:58 | CPPg++13.3.0 | Success | 8,743 | ||
| Nov 16, 2025 13:56 | CPPg++13.3.0 | Success | 8,790 | ||
| Nov 14, 2025 17:54 | GOgo1.21.5 | Success | 33,933+7.02 RP | ||
| Nov 14, 2025 17:52 | GOgo1.25.4 | Success | 34,774 | ||
| Nov 14, 2025 17:47 | GOgo1.25.4 | Success | 34,779 | ||
| Nov 14, 2025 17:34 | GOgo1.25.4 | Success | 34,778 | ||
| Nov 14, 2025 17:19 | GOgo1.25.4 | Success | 34,761+0.49 RP | ||
| Nov 14, 2025 17:06 | GOgo1.25.4 | Success | 35,064 | ||
| Nov 14, 2025 16:39 | GOgo1.25.4 | Success | 34,820+287.19 RP | ||
| Nov 12, 2025 14:05 | CPPg++13.3.0 | Success | 377,176+26.51 RP | ||
| Jul 29, 2025 21:00 | CPPg++13.3.0 | Error | |||
| Jul 20, 2025 05:45 | CPPg++13.3.0 | Success | 338,760+2.86 RP | ||
| Jul 7, 2025 23:09 | CPPg++13.3.0 | Success | 6,274 | ||
| Jul 6, 2025 19:07 | CPPg++13.3.0 | Success | 375,149+2.33 RP | ||
| Jul 6, 2025 19:00 | CPPg++13.3.0 | Success | 411,070+0.02 RP | ||
| Jul 6, 2025 18:43 | CPPg++13.3.0 | Success | 411,374+24.31 RP | ||
| Jul 3, 2025 17:22 | CPPg++13.3.0 | Error | |||
| Jul 1, 2025 20:40 | CPPg++13.3.0 | Success | 6,266+2.29 RP | ||
| Jul 1, 2025 20:40 | CPPg++13.3.0 | Success | 6,471 | ||
| Jul 1, 2025 20:38 | CPPg++13.3.0 | Error | |||
| Jul 1, 2025 20:35 | CPPg++13.3.0 | Success | 6,275+2.79 RP | ||
| Jul 1, 2025 20:32 | CPPg++13.3.0 | Success | 6,286+28.09 RP | ||
| Jul 1, 2025 20:31 | CPPg++13.3.0 | Success | 6,414 | ||
| Jul 1, 2025 20:31 | CPPg++13.3.0 | Success | 6,399+1.46 RP | ||
| Jul 1, 2025 20:30 | CPPg++13.3.0 | Success | 6,405+29.89 RP | ||
| Jul 1, 2025 20:27 | CPPg++13.3.0 | Success | 6,559 | ||
| Jul 1, 2025 20:26 | CPPg++13.3.0 | Success | 6,675 | ||
| Jul 1, 2025 20:25 | CPPg++13.3.0 | Success | 6,571 | ||
| Jul 1, 2025 20:24 | CPPg++13.3.0 | Success | 6,576 | ||
| Jul 1, 2025 20:23 | CPPg++13.3.0 | Success | 6,604 | ||
| Jul 1, 2025 20:10 | CPPg++13.3.0 | Success | 6,559 | ||
| Jul 1, 2025 20:06 | CPPg++13.3.0 | Success | 6,533 | ||
| Jul 1, 2025 20:03 | CPPg++13.3.0 | Success | 6,530+7.93 RP | ||
| Jul 1, 2025 20:02 | CPPg++13.3.0 | Success | 6,797 | ||
| Jul 1, 2025 20:01 | CPPg++13.3.0 | Success | 6,564+3.94 RP | ||
| Jul 1, 2025 17:38 | CPPg++13.3.0 | Error | |||
| Jul 1, 2025 17:37 | CPPg++13.3.0 | Error | |||
| Jun 29, 2025 22:37 | CPPg++13.3.0 | Success | 6,581+80.88 RP | ||
| Jun 29, 2025 22:33 | CPPg++13.3.0 | Success | 7,305 | ||
| Jun 29, 2025 22:32 | CPPg++13.3.0 | Success | 6,951+10.27 RP | ||
| Jun 29, 2025 22:31 | CPPg++13.3.0 | Success | 7,001+782.83 RP | ||
| Jun 29, 2025 22:30 | CPPg++13.3.0 | Error | |||
| Jun 29, 2025 22:18 | CPPg++13.3.0 | Success | 112,784 | ||
| Jun 29, 2025 22:17 | CPPg++13.3.0 | Error |