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 12, 2021 22:56

Yuriy Lyfenko

Score: 8,282

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	May 19, 2021 20:26	8,258	129,953,362	90,841,852	0	2,199,552
2	May 12, 2021 22:50	8,260	119,446,745	88,860,000	1,996,000	2,334,720
3	May 19, 2021 20:26	8,265	157,292,968	90,914,749	0	2,244,608
4	May 12, 2021 22:50	8,269	118,979,933	89,956,000	999,000	2,334,720
5	May 12, 2021 22:57	8,269	118,377,542	89,960,000	999,000	2,523,136
6	May 19, 2021 20:26	8,270	119,073,006	89,975,000	999,000	2,330,624
7	May 12, 2021 22:57	8,270	113,982,193	89,972,000	999,000	2,535,424
8	May 12, 2021 22:57	8,270	114,162,668	88,967,000	1,999,000	2,400,256
9	May 12, 2021 22:50	8,271	115,498,674	88,982,000	1,999,000	2,330,624
10	May 12, 2021 22:57	8,271	123,260,426	88,983,000	1,999,000	2,531,328
11	May 12, 2021 22:57	8,271	121,014,853	88,979,000	1,999,000	2,330,624
12	May 19, 2021 20:26	8,275	129,297,375	91,022,552	0	2,187,264
13	May 12, 2021 22:56	8,275	120,162,521	89,025,000	2,000,000	2,330,624
14	May 12, 2021 22:57	8,275	119,282,035	90,024,000	1,000,000	2,531,328
15	May 12, 2021 22:57	8,276	118,697,217	88,039,000	3,001,000	2,330,624
16	May 19, 2021 20:26	8,276	121,632,942	90,039,000	1,000,000	2,531,328
17	May 12, 2021 22:57	8,276	119,491,509	90,036,000	1,000,000	2,330,624
18	May 12, 2021 22:57	8,277	112,468,800	89,046,000	2,001,000	2,523,136
19	May 12, 2021 22:57	8,277	118,084,854	89,043,000	2,000,000	2,330,624
20	May 19, 2021 20:26	8,278	117,929,006	89,057,000	2,001,000	2,523,136
21	May 19, 2021 20:26	8,278	115,464,144	87,061,000	4,002,000	2,330,624
22	May 12, 2021 22:57	8,279	123,481,548	90,069,000	1,000,000	2,334,720
23	May 12, 2021 22:50	8,279	115,137,755	89,070,000	2,001,000	2,371,584
24	May 12, 2021 22:50	8,279	120,363,837	89,070,000	2,001,000	2,527,232
25	May 12, 2021 22:56	8,280	118,056,943	89,075,000	2,001,000	2,342,912
26	May 12, 2021 22:57	8,280	120,976,226	90,084,000	1,000,000	2,527,232
27	May 12, 2021 22:57	8,280	118,903,685	90,075,000	1,000,000	2,531,328
28	May 12, 2021 22:56	8,281	114,552,827	88,089,000	3,003,000	2,355,200
29	May 12, 2021 22:57	8,282	117,744,823	90,106,000	1,001,000	2,330,624
30	May 19, 2021 20:26	8,283	119,143,217	87,105,000	4,004,000	2,330,624
31	May 12, 2021 22:57	8,284	113,839,302	89,125,000	2,002,000	2,523,136
32	May 12, 2021 22:57	8,284	112,990,533	87,124,000	4,005,000	2,330,624
33	May 12, 2021 22:50	8,284	117,967,162	88,082,000	3,037,000	2,330,624
34	May 12, 2021 22:50	8,285	121,307,957	90,130,000	1,001,000	2,330,624
35	May 12, 2021 22:57	8,286	116,925,673	89,140,000	2,003,000	2,396,160
36	May 12, 2021 22:50	8,287	110,396,004	90,154,000	1,001,000	2,392,064
37	May 12, 2021 22:57	8,287	113,919,429	88,155,000	3,005,000	2,330,624
38	May 19, 2021 20:26	8,288	117,912,821	87,162,000	4,007,000	2,523,136
39	May 12, 2021 22:57	8,288	113,789,323	90,171,000	1,001,000	2,523,136
40	May 12, 2021 22:57	8,288	114,970,809	89,169,000	2,003,000	2,519,040
41	May 12, 2021 22:57	8,288	113,985,914	88,162,000	3,005,000	2,519,040
42	May 12, 2021 22:57	8,289	121,914,687	89,177,000	2,003,000	2,531,328
43	May 12, 2021 22:56	8,289	114,006,314	89,177,000	2,003,000	2,330,624
44	May 12, 2021 22:57	8,290	114,061,354	90,184,000	1,002,000	2,330,624
45	May 12, 2021 22:56	8,290	113,016,388	89,189,000	2,004,000	2,330,624
46	May 12, 2021 22:50	8,291	116,678,562	89,197,000	2,004,000	2,527,232
47	May 12, 2021 22:57	8,291	116,503,162	90,198,000	1,002,000	2,531,328
48	May 19, 2021 20:26	8,291	113,392,021	89,200,000	2,004,000	2,330,624
49	May 19, 2021 20:26	8,293	111,263,391	88,218,000	3,007,000	2,330,624
50	May 12, 2021 22:56	8,298	114,851,889	87,268,000	4,012,000	2,519,040
51	May 12, 2021 22:57	8,298	119,416,649	87,264,000	4,012,000	2,322,432
52	May 12, 2021 22:56	8,301	113,573,388	88,302,000	3,010,000	2,330,624
53	May 12, 2021 22:56	8,304	111,936,692	88,328,000	3,011,000	2,531,328
54	May 12, 2021 22:57	8,304	111,831,500	88,335,000	3,011,000	2,527,232
55	May 19, 2021 20:26	8,306	114,850,380	90,364,000	1,004,000	2,531,328
56	May 12, 2021 22:57	8,315	117,967,624	89,452,000	2,010,000	2,330,624
57	May 12, 2021 22:56	8,322	115,583,257	90,534,000	1,005,000	2,334,720

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