Parse dateTime

Compute the sum of 5,000,000 UTC Unix timestamps as fast as possible.

Input

One RFC 3339 datetime per line on STDIN:

2017-05-04T14:31:30-03:00
2046-06-23T11:51:56-06:00
2031-08-14T13:18:38+06:00
2048-04-14T05:55:06-09:00
1980-08-28T00:43:03+02:00

Output

Print the sum of all UTC Unix timestamps (int64) to STDOUT.

Constraints

Datetimes are in the range 1950-01-01T00:00:00 to 2050-12-31T23:59:59

Restrictions:30s256Mb 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 listOct 16, 2021 09:51

Ilya AniskovetsScore: 14,680Success

Source Code

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Oct 16, 2021 09:51	7,262	107,170,872	32,680,290	0	2,269,184
2	Oct 16, 2021 09:51	7,296	125,977,035	32,832,406	0	2,273,280
3	Oct 16, 2021 09:51	7,297	92,959,144	32,835,978	0	2,285,568
4	Oct 16, 2021 09:52	7,298	104,689,775	32,839,819	0	2,256,896
5	Oct 16, 2021 09:52	7,316	96,351,844	32,921,748	0	2,277,376
6	Oct 16, 2021 09:51	7,325	97,846,623	32,960,385	0	2,260,992
7	Oct 16, 2021 09:51	7,373	108,440,322	33,180,749	0	2,273,280
8	Oct 16, 2021 09:52	7,383	120,345,336	33,223,466	0	2,273,280
9	Oct 16, 2021 09:51	7,417	100,082,232	33,376,794	0	2,273,280
10	Oct 16, 2021 09:52	14,498	255,877,807	29,656,000	35,587,000	29,638,656
11	Oct 16, 2021 09:51	14,552	248,994,773	32,742,000	32,742,000	29,495,296
12	Oct 16, 2021 09:51	14,566	251,090,350	31,306,000	34,241,000	29,712,384
13	Oct 16, 2021 09:51	14,596	254,408,272	33,363,000	32,320,000	29,634,560
14	Oct 16, 2021 09:52	14,596	250,979,628	31,325,000	34,357,000	29,634,560
15	Oct 16, 2021 09:52	14,604	257,641,547	30,925,000	34,791,000	29,630,464
16	Oct 16, 2021 09:52	14,616	250,340,799	29,127,000	36,644,000	29,724,672
17	Oct 16, 2021 09:51	14,654	253,546,779	31,402,000	34,542,000	29,528,064
18	Oct 16, 2021 09:51	14,664	250,453,701	35,195,000	30,795,000	29,585,408
19	Oct 16, 2021 09:52	14,680	248,473,982	34,710,000	31,351,000	29,593,600
20	Oct 16, 2021 09:51	14,690	259,820,714	30,135,000	35,968,000	29,519,872
21	Oct 16, 2021 09:52	14,691	252,560,830	33,054,000	33,054,000	29,540,352
22	Oct 16, 2021 09:51	14,692	254,727,817	33,058,000	33,058,000	29,552,640
23	Oct 16, 2021 09:52	14,693	251,670,890	28,869,000	37,250,000	29,667,328
24	Oct 16, 2021 09:51	14,716	249,446,997	30,640,000	35,582,000	29,548,544
25	Oct 16, 2021 09:51	14,728	254,544,460	29,240,000	37,037,000	29,548,544
26	Oct 16, 2021 09:51	14,757	260,718,606	34,309,000	32,096,000	29,597,696
27	Oct 16, 2021 09:51	14,764	251,810,561	34,907,000	31,529,000	29,741,056
28	Oct 16, 2021 09:52	14,797	252,627,819	31,275,000	35,311,000	29,622,272
29	Oct 16, 2021 09:51	14,799	254,179,701	31,280,000	35,316,000	29,630,464
30	Oct 16, 2021 09:51	14,863	252,435,536	32,363,000	34,521,000	29,716,480
31	Oct 16, 2021 09:51	14,867	253,065,201	32,406,000	34,497,000	29,650,944
32	Oct 16, 2021 09:51	14,920	254,884,340	31,064,000	36,075,000	29,655,040
33	Oct 16, 2021 09:51	14,930	259,681,769	35,909,000	31,276,000	29,491,200
34	Oct 16, 2021 09:51	14,942	264,004,404	37,608,000	29,630,000	29,532,160
35	Oct 16, 2021 09:52	14,966	255,318,268	36,627,000	30,720,000	29,626,368
36	Oct 16, 2021 09:51	15,016	273,263,737	31,739,000	35,835,000	29,544,448

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