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 07:07

Ilya AniskovetsScore: 14,745Success

Source Code

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Challenge History

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Oct 16, 2021 07:08	7,271	97,329,640	32,717,554	0	2,265,088
2	Oct 16, 2021 07:05	7,282	92,189,045	32,769,546	0	2,277,376
3	Oct 16, 2021 07:05	7,289	100,969,670	32,800,371	0	2,273,280
4	Oct 16, 2021 07:07	7,300	109,594,727	32,850,931	0	2,256,896
5	Oct 16, 2021 07:08	7,306	102,638,590	32,875,745	0	2,273,280
6	Oct 16, 2021 07:07	7,308	94,923,091	32,884,124	0	2,277,376
7	Oct 16, 2021 07:05	7,374	109,904,540	33,184,090	0	2,281,472
8	Oct 16, 2021 07:07	7,377	93,339,513	33,197,847	0	2,277,376
9	Oct 16, 2021 07:08	7,435	100,666,749	33,459,715	0	2,273,280
10	Oct 16, 2021 07:07	14,542	251,599,821	27,788,000	37,649,000	29,491,200
11	Oct 16, 2021 07:07	14,594	250,164,192	32,316,000	33,358,000	29,495,296
12	Oct 16, 2021 07:08	14,634	251,016,843	30,021,000	35,832,000	29,499,392
13	Oct 16, 2021 07:08	14,639	254,091,348	29,174,000	36,703,000	29,655,040
14	Oct 16, 2021 07:08	14,669	250,988,224	33,005,000	33,005,000	29,630,464
15	Oct 16, 2021 07:08	14,679	260,183,641	31,549,000	34,507,000	29,663,232
16	Oct 16, 2021 07:08	14,722	260,939,993	32,090,000	34,160,000	29,597,696
17	Oct 16, 2021 07:05	14,734	253,614,203	32,116,000	34,188,000	29,679,616
18	Oct 16, 2021 07:07	14,742	258,380,942	31,159,000	35,179,000	29,458,432
19	Oct 16, 2021 07:05	14,745	255,971,876	34,863,000	31,489,000	29,724,672
20	Oct 16, 2021 07:08	14,746	255,790,549	31,169,000	35,190,000	29,544,448
21	Oct 16, 2021 07:05	14,748	252,079,657	32,178,000	34,190,000	29,757,440
22	Oct 16, 2021 07:08	14,752	256,755,314	34,299,000	32,086,000	29,745,152
23	Oct 16, 2021 07:08	14,759	253,057,194	31,675,000	34,740,000	29,663,232
24	Oct 16, 2021 07:05	14,770	251,287,105	34,341,000	32,125,000	29,630,464
25	Oct 16, 2021 07:05	14,778	258,100,316	33,250,000	33,250,000	29,544,448
26	Oct 16, 2021 07:05	14,790	258,787,183	31,741,000	34,812,000	29,540,352
27	Oct 16, 2021 07:07	14,832	258,352,357	29,986,000	36,758,000	29,552,640
28	Oct 16, 2021 07:07	14,834	252,562,139	31,786,000	34,965,000	29,630,464
29	Oct 16, 2021 07:07	14,839	254,782,941	30,442,000	36,334,000	29,564,928
30	Oct 16, 2021 07:08	14,850	260,385,538	33,960,000	32,865,000	29,495,296
31	Oct 16, 2021 07:05	14,855	263,125,831	30,386,000	36,463,000	29,581,312
32	Oct 16, 2021 07:05	14,897	262,964,355	31,486,000	35,549,000	29,597,696
33	Oct 16, 2021 07:05	14,907	253,334,999	32,524,000	34,557,000	29,499,392
34	Oct 16, 2021 07:07	14,994	255,178,540	34,861,000	32,612,000	29,499,392
35	Oct 16, 2021 07:07	15,040	264,485,207	38,147,000	29,533,000	29,548,544
36	Oct 16, 2021 07:07	15,068	262,155,425	33,902,000	33,902,000	29,675,520

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