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 09:41

Ilya AniskovetsScore: 14,640Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Oct 16, 2021 13:38	7,122	90,956,687	32,050,891	0	2,269,184
2	Oct 16, 2021 13:38	7,141	100,906,570	32,135,322	0	2,260,992
3	Oct 16, 2021 09:41	7,149	98,526,969	32,171,392	0	2,277,376
4	Oct 16, 2021 13:38	7,173	78,526,482	32,277,080	0	2,285,568
5	Oct 16, 2021 13:38	7,177	101,507,518	32,296,868	0	2,273,280
6	Oct 16, 2021 09:41	7,209	109,083,317	32,440,317	0	2,273,280
7	Oct 16, 2021 13:38	7,218	98,863,247	32,481,864	0	2,256,896
8	Oct 16, 2021 13:38	7,228	102,009,077	32,527,035	0	2,260,992
9	Oct 16, 2021 09:41	7,262	102,758,018	32,679,475	0	2,269,184
10	Oct 16, 2021 13:38	14,513	254,413,996	32,654,000	32,654,000	29,597,696
11	Oct 16, 2021 13:38	14,552	254,346,890	30,872,000	34,614,000	29,532,160
12	Oct 16, 2021 13:38	14,578	255,029,598	33,860,000	31,743,000	29,712,384
13	Oct 16, 2021 13:38	14,586	261,540,759	29,389,000	36,246,000	29,564,928
14	Oct 16, 2021 13:38	14,608	258,259,580	35,134,000	30,601,000	29,593,600
15	Oct 16, 2021 13:38	14,618	263,750,278	30,436,000	35,345,000	29,626,368
16	Oct 16, 2021 09:41	14,619	256,664,749	28,724,000	37,063,000	29,552,640
17	Oct 16, 2021 13:38	14,622	254,614,448	33,996,000	31,803,000	29,597,696
18	Oct 16, 2021 09:41	14,626	253,786,116	30,913,000	34,902,000	29,548,544
19	Oct 16, 2021 13:38	14,640	250,622,009	34,561,000	31,321,000	29,667,328
20	Oct 16, 2021 13:38	14,657	258,593,385	27,105,000	38,851,000	29,749,248
21	Oct 16, 2021 13:38	14,668	254,135,251	31,939,000	34,069,000	29,634,560
22	Oct 16, 2021 13:38	14,672	256,039,425	31,012,000	35,014,000	29,560,832
23	Oct 16, 2021 13:38	14,678	258,759,040	30,112,000	35,940,000	29,585,408
24	Oct 16, 2021 09:41	14,703	255,221,383	32,557,000	33,608,000	29,716,480
25	Oct 16, 2021 09:41	14,710	255,654,331	38,718,000	27,477,000	29,548,544
26	Oct 16, 2021 13:38	14,719	252,986,634	32,575,000	33,661,000	29,581,312
27	Oct 16, 2021 13:38	14,720	259,531,425	31,636,000	34,602,000	29,663,232
28	Oct 16, 2021 13:38	14,729	252,223,830	35,425,000	30,854,000	29,552,640
29	Oct 16, 2021 09:41	14,791	257,593,360	31,378,000	35,182,000	29,548,544
30	Oct 16, 2021 09:41	14,803	253,858,700	32,265,000	34,347,000	29,630,464
31	Oct 16, 2021 09:41	14,807	261,397,380	36,763,000	29,870,000	29,663,232
32	Oct 16, 2021 09:41	14,849	258,233,113	36,867,000	29,954,000	29,663,232
33	Oct 16, 2021 09:41	14,858	255,721,223	32,900,000	33,962,000	29,548,544
34	Oct 16, 2021 13:38	14,950	261,817,211	35,958,000	31,318,000	29,650,944
35	Oct 16, 2021 13:38	14,968	263,900,349	32,123,000	35,232,000	29,728,768
36	Oct 16, 2021 13:38	14,988	269,905,643	33,722,000	33,722,000	29,716,480

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