Parse JSON 
Compute the total amount of non-canceled external USD transactions from a stream of JSON records as fast as possible.
Input: 1 000 000 JSON records on STDIN, one per line. Each record has the following structure:
{
"user_id": 0,
"currency": "USD",
"transactions": [
{
"amount": 0,
"to_user_id": 0,
"canceled": false
}
]
}
| Field | Constraints |
|---|---|
user_id |
Integer, max 10 000 |
currency |
One of "GBP", "USD", "RUB", "JPY", "CHF" |
transactions |
Array, max 10 elements |
amount |
Integer, max 1000 |
canceled |
Boolean; may be omitted when false |
Field order is not guaranteed within any object.
Output: The total amount of all transactions where:
record.currency == "USD"transaction.to_user_id != record.user_id(external)transaction.canceledisfalseor absent
| Date | Author | Language | Status | Score | |
|---|---|---|---|---|---|
| May 22, 2021 18:42 | CPP | Error | |||
| May 22, 2021 18:40 | CPP | Error | |||
| May 22, 2021 18:26 | CPP | Success | 4,354+112.18 RP | ||
| May 22, 2021 18:17 | CPP | Success | 4,463+448.22 RP | ||
| May 22, 2021 18:09 | CPP | Success | 4,959+5.68 RP | ||
| May 22, 2021 18:08 | CPP | Success | 4,966+374.42 RP | ||
| May 22, 2021 17:44 | GO | Success | 6,245+8.42 RP | ||
| May 22, 2021 17:40 | GO | Success | 19,366 | ||
| May 22, 2021 17:23 | GO | Success | 6,278+0.51 RP | ||
| May 22, 2021 17:20 | GO | Success | 6,280+1.27 RP | ||
| May 22, 2021 17:14 | GO | Success | 6,285+369.04 RP | ||
| May 22, 2021 17:12 | GO | Error | |||
| May 22, 2021 16:54 | GO | Success | 8,537 | ||
| May 22, 2021 16:30 | GO | Success | 8,183+9.19 RP | ||
| May 22, 2021 16:28 | GO | Error | |||
| May 22, 2021 15:52 | CPP | Success | 5,488 | ||
| May 22, 2021 15:10 | CPP | Success | 5,475+62.94 RP | ||
| May 20, 2021 19:43 | GO | Error | |||
| May 20, 2021 13:04 | GO | Error | |||
| May 20, 2021 06:12 | CPP | Success | 5,584 | ||
| May 20, 2021 06:04 | CPP | Success | 5,582 | ||
| May 20, 2021 05:59 | CPP | Success | 5,581 | ||
| May 20, 2021 05:58 | CPP | Success | 5,608 | ||
| May 20, 2021 05:41 | RUST | Success | 6,169+823.06 RP | ||
| May 19, 2021 20:56 | CPP | Success | 5,582 | ||
| May 19, 2021 20:52 | CPP | Success | 5,612 | ||
| May 19, 2021 20:48 | GO | Success | 8,245+1.62 RP | ||
| May 19, 2021 20:32 | GO | Success | 8,280 | ||
| May 19, 2021 20:29 | GO | Success | 8,278 | ||
| May 19, 2021 20:28 | GO | Success | 8,278 | ||
| May 19, 2021 19:09 | CPP | Success | 5,617 | ||
| May 19, 2021 19:08 | CPP | Success | 5,618 | ||
| May 19, 2021 19:06 | CPP | Success | 5,629 | ||
| May 19, 2021 19:06 | CPP | Success | 5,621 | ||
| May 19, 2021 19:04 | CPP | Success | 5,611 | ||
| May 19, 2021 19:03 | CPP | Success | 31,781 | ||
| May 19, 2021 19:02 | CPP | Success | 31,791 | ||
| May 19, 2021 19:01 | CPP | Error | |||
| May 17, 2021 07:50 | CPP | Success | 6,717 | ||
| May 16, 2021 23:20 | GO | Error | |||
| May 16, 2021 23:01 | GO | Error | |||
| May 16, 2021 22:58 | GO | Error | |||
| May 16, 2021 18:52 | CPP | Success | 5,602 | ||
| May 16, 2021 18:50 | CPP | Success | 5,606 | ||
| May 16, 2021 18:48 | CPP | Success | 5,648 | ||
| May 12, 2021 22:56 | GO | Success | 8,282 | ||
| May 12, 2021 22:54 | GO | Success | 8,300 | ||
| May 12, 2021 22:51 | GO | Success | 8,256+0.15 RP | ||
| May 11, 2021 14:45 | RUST | Success | 8,268+0.30 RP | ||
| May 11, 2021 14:41 | RUST | Success | 8,269+135.30 RP | ||
| May 11, 2021 14:37 | RUST | Success | 8,759+17.84 RP | ||
| May 11, 2021 14:32 | RUST | Success | 8,828+113.12 RP | ||
| May 11, 2021 14:30 | RUST | Success | 9,292+24.72 RP | ||
| May 11, 2021 14:28 | RUST | Error | |||
| May 11, 2021 07:04 | RUST | Success | 9,400+1.58 RP | ||
| May 11, 2021 07:03 | RUST | Success | 11,027 | ||
| May 11, 2021 07:00 | RUST | Success | 10,932 | ||
| May 11, 2021 06:59 | RUST | Error | |||
| May 11, 2021 06:58 | RUST | Success | 9,407+20.14 RP | ||
| May 11, 2021 06:52 | RUST | Success | 9,575 | ||
| May 11, 2021 06:49 | RUST | Error | |||
| May 11, 2021 06:44 | RUST | Error | |||
| May 11, 2021 06:41 | RUST | Error | |||
| May 11, 2021 05:59 | RUST | Success | 9,497+2.44 RP | ||
| May 11, 2021 05:57 | RUST | Error | |||
| May 11, 2021 05:55 | RUST | Error | |||
| May 10, 2021 17:26 | GO | Error | |||
| May 9, 2021 19:46 | GO | Success | 8,282 | ||
| May 9, 2021 18:46 | RUST | Success | 9,508+143.48 RP | ||
| May 9, 2021 18:43 | RUST | Success | 11,236 | ||
| May 9, 2021 18:42 | RUST | Error | |||
| May 9, 2021 18:39 | RUST | Error | |||
| May 9, 2021 18:34 | RUST | Error | |||
| May 9, 2021 18:32 | RUST | Error | |||
| May 9, 2021 18:31 | RUST | Error | |||
| May 9, 2021 18:29 | RUST | Error | |||
| May 9, 2021 18:25 | RUST | Success | 11,492 | ||
| May 9, 2021 18:19 | RUST | Error | |||
| May 9, 2021 18:15 | RUST | Error | |||
| May 9, 2021 18:13 | RUST | Error | |||
| May 9, 2021 18:11 | RUST | Error | |||
| May 9, 2021 18:07 | RUST | Error | |||
| May 9, 2021 18:05 | RUST | Error | |||
| May 9, 2021 17:58 | RUST | Error | |||
| May 9, 2021 17:20 | RUST | Error | |||
| May 9, 2021 17:19 | RUST | Error | |||
| May 9, 2021 17:16 | RUST | Error | |||
| May 8, 2021 21:11 | RUST | Success | 10,204+274.96 RP | ||
| May 8, 2021 21:09 | RUST | Success | 11,869+50.40 RP | ||
| May 8, 2021 21:07 | RUST | Success | 12,235+58.36 RP | ||
| May 8, 2021 21:03 | RUST | Success | 12,720 | ||
| May 8, 2021 21:01 | RUST | Success | 12,688+98.20 RP | ||
| May 8, 2021 20:58 | RUST | Error | |||
| May 8, 2021 20:57 | RUST | Success | 13,665 | ||
| May 8, 2021 20:56 | RUST | Success | 13,531+72.50 RP | ||
| May 8, 2021 20:54 | RUST | Error | |||
| May 8, 2021 20:52 | RUST | Error | |||
| May 8, 2021 20:51 | RUST | Success | 14,815 | ||
| May 8, 2021 20:50 | RUST | Success | 14,942 | ||
| May 8, 2021 20:47 | RUST | Error |