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.canceled is false or absent

Restrictions:60s512Mb 1 Score Packages

Feel free to create an issue if you need an extra library from the standard Ubuntu repository.

Name	Version	Description
libc6-dev	2.39-0ubuntu8.7	GNU C Library: Development Libraries and Header Files Contains the symlinks, headers, and object files needed to compile and link programs which use the standard C library.
libclang-common-14-dev	1:14.0.6-19build4	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libclang-common-15-dev	1:15.0.7-14build3	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libclang-common-16-dev	1:16.0.6-23ubuntu4	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libclang-common-17-dev	1:17.0.6-9ubuntu1	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libclang-common-18-dev	1:18.1.3-1ubuntu1	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libclang-common-19-dev	1:19.1.1-1ubuntu1~24.04.2	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libclang-common-20-dev	1:20.1.2-0ubuntu1~24.04.2	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libcrypt-dev	1:4.4.36-4build1	libcrypt development files This package contains the files needed for developing applications that use libcrypt.
libgcc-10-dev	10.5.0-4ubuntu2.1	GCC support library (development files) This package contains the headers and static library files necessary for building C programs which use libgcc, libgomp, libquadmath, libssp or libitm.
libgcc-11-dev	11.5.0-1ubuntu1~24.04.1	GCC support library (development files) This package contains the headers and static library files necessary for building C programs which use libgcc, libgomp, libquadmath, libssp or libitm.
libgcc-12-dev	12.4.0-2ubuntu1~24.04.1	GCC support library (development files) This package contains the headers and static library files necessary for building C programs which use libgcc, libgomp, libquadmath, libssp or libitm.
libgcc-13-dev	13.3.0-6ubuntu2~24.04.1	GCC support library (development files) This package contains the headers and static library files necessary for building C programs which use libgcc, libgomp, libquadmath, libssp or libitm.
libgcc-14-dev	14.2.0-4ubuntu2~24.04.1	GCC support library (development files) This package contains the headers and static library files necessary for building C programs which use libgcc, libgomp, libquadmath, libssp or libitm.
libobjc-13-dev	13.3.0-6ubuntu2~24.04.1	Runtime library for GNU Objective-C applications (development files) This package contains the headers and static library files needed to build GNU ObjC applications.
libssl-dev	3.0.13-0ubuntu3.9	Secure Sockets Layer toolkit - development files This package is part of the OpenSSL project's implementation of the SSL and TLS cryptographic protocols for secure communication over the Internet. . It contains development libraries, header files, and manpages for libssl and libcrypto.
libstdc++-10-dev	10.5.0-4ubuntu2.1	GNU Standard C++ Library v3 (development files) This package contains the headers and static library files necessary for building C++ programs which use libstdc++. . libstdc++-v3 is a complete rewrite from the previous libstdc++-v2, which was included up to g++-2.95. The first version of libstdc++-v3 appeared in g++-3.0.
libstdc++-11-dev	11.5.0-1ubuntu1~24.04.1	GNU Standard C++ Library v3 (development files) This package contains the headers and static library files necessary for building C++ programs which use libstdc++. . libstdc++-v3 is a complete rewrite from the previous libstdc++-v2, which was included up to g++-2.95. The first version of libstdc++-v3 appeared in g++-3.0.
libstdc++-12-dev	12.4.0-2ubuntu1~24.04.1	GNU Standard C++ Library v3 (development files) This package contains the headers and static library files necessary for building C++ programs which use libstdc++. . libstdc++-v3 is a complete rewrite from the previous libstdc++-v2, which was included up to g++-2.95. The first version of libstdc++-v3 appeared in g++-3.0.
libstdc++-13-dev	13.3.0-6ubuntu2~24.04.1	GNU Standard C++ Library v3 (development files) This package contains the headers and static library files necessary for building C++ programs which use libstdc++. . libstdc++-v3 is a complete rewrite from the previous libstdc++-v2, which was included up to g++-2.95. The first version of libstdc++-v3 appeared in g++-3.0.
libstdc++-14-dev	14.2.0-4ubuntu2~24.04.1	GNU Standard C++ Library v3 (development files) This package contains the headers and static library files necessary for building C++ programs which use libstdc++. . libstdc++-v3 is a complete rewrite from the previous libstdc++-v2, which was included up to g++-2.95. The first version of libstdc++-v3 appeared in g++-3.0.
libtbb-dev	2021.11.0-2ubuntu2	parallelism library for C++ - development files TBB is a library that helps you leverage multi-core processor performance without having to be a threading expert. It represents a higher-level, task-based parallelism that abstracts platform details and threading mechanism for performance and scalability. . (Note: if you are a user of the i386 architecture, i.e., 32-bit Intel or compatible hardware, this package only supports Pentium4-compatible and higher processors.) . This package includes the TBB development files.

Back to listMay 3, 2021 01:02

Yuriy Lyfenko

Score: 5,955

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	May 3, 2021 01:00	5,709	89,252,230	60,804,000	1,993,000	2,281,472
2	May 3, 2021 01:00	5,715	93,514,197	60,868,000	1,995,000	2,281,472
3	May 3, 2021 00:59	5,719	86,876,188	60,917,000	1,997,000	2,265,088
4	May 3, 2021 01:00	5,720	91,060,901	60,921,000	1,997,000	2,277,376
5	May 3, 2021 01:00	5,720	88,509,100	60,925,000	1,997,000	2,523,136
6	May 3, 2021 00:59	5,721	85,506,138	60,929,000	1,997,000	2,277,376
7	May 3, 2021 01:00	5,726	83,609,501	60,986,000	1,999,000	2,371,584
8	May 3, 2021 00:59	5,727	89,291,529	60,994,000	1,999,000	2,281,472
9	May 3, 2021 01:00	5,729	84,736,091	62,015,000	1,000,000	2,281,472
10	May 3, 2021 01:00	5,729	86,316,931	60,019,000	3,000,000	2,269,184
11	May 3, 2021 00:59	5,731	89,701,556	61,035,000	2,001,000	2,273,280
12	May 3, 2021 01:00	5,731	84,859,768	61,045,000	2,001,000	2,371,584
13	May 3, 2021 00:59	5,732	86,960,315	61,053,000	2,001,000	2,281,472
14	May 3, 2021 01:00	5,734	88,840,333	62,071,000	1,001,000	2,367,488
15	May 3, 2021 00:59	5,736	86,588,972	61,089,000	2,002,000	2,273,280
16	May 3, 2021 00:59	5,737	88,570,241	61,103,000	2,003,000	2,281,472
17	May 3, 2021 00:59	5,738	88,543,053	61,115,000	2,003,000	2,281,472
18	May 3, 2021 00:59	5,739	84,414,859	61,123,000	2,004,000	2,281,472
19	May 3, 2021 01:01	5,945	89,627,398	63,388,000	2,012,000	2,281,472
20	May 3, 2021 01:01	5,947	89,490,467	65,414,000	0	2,277,376
21	May 3, 2021 01:02	5,950	86,667,565	65,454,000	0	2,281,472
22	May 3, 2021 01:02	5,955	91,279,998	64,495,000	1,007,000	2,277,376
23	May 3, 2021 01:02	5,955	86,048,242	64,501,000	1,007,000	2,269,184
24	May 3, 2021 01:01	5,957	89,071,534	64,520,000	1,008,000	2,265,088
25	May 3, 2021 01:02	5,958	88,869,813	64,535,000	1,008,000	2,269,184
26	May 3, 2021 01:02	5,963	89,949,456	64,586,000	1,009,000	2,281,472
27	May 3, 2021 01:02	5,966	90,982,615	64,615,000	1,009,000	2,527,232
28	May 3, 2021 01:02	5,966	91,435,274	64,613,000	1,009,000	2,269,184
29	May 3, 2021 01:02	5,966	93,688,305	64,619,000	1,009,000	2,269,184
30	May 3, 2021 01:01	5,969	96,152,914	64,652,000	1,010,000	2,281,472
31	May 3, 2021 01:02	5,970	92,380,873	64,661,000	1,010,000	2,277,376
32	May 3, 2021 01:01	5,984	92,423,111	65,819,000	0	2,269,184
33	May 3, 2021 01:02	5,984	90,977,826	63,828,000	1,994,000	2,404,352
34	May 3, 2021 01:02	5,985	95,663,436	63,840,000	1,995,000	2,273,280
35	May 3, 2021 01:02	5,985	95,419,778	63,840,000	1,995,000	2,281,472
36	May 3, 2021 01:02	5,986	93,024,218	63,854,000	1,995,000	2,269,184
37	May 3, 2021 01:01	5,986	97,479,127	63,856,000	1,995,000	2,269,184
38	May 3, 2021 01:01	5,987	91,838,027	63,858,000	1,995,000	2,273,280
39	May 3, 2021 01:02	5,988	94,319,551	65,868,000	0	2,273,280
40	May 3, 2021 01:02	5,988	95,463,361	64,866,000	997,000	2,277,376
41	May 3, 2021 01:01	5,990	90,011,239	63,898,000	1,996,000	2,281,472
42	May 3, 2021 01:02	5,993	87,478,893	64,923,000	998,000	2,265,088
43	May 3, 2021 01:01	6,001	89,064,058	64,013,000	2,000,000	2,273,280
44	May 3, 2021 01:02	6,002	92,269,876	61,020,000	5,001,000	2,281,472
45	May 3, 2021 01:02	6,013	89,019,564	65,138,000	1,002,000	2,265,088

Model	Intel(R) Xeon(R) CPU E3-1271 v3 @ 3.60GHz
Cores	1