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 10, 2021 17:05

Andrey TsvetkovScore: 26,943Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Oct 10, 2021 17:05	19,363	145,488,637	87,132,061	0	2,236,416
2	Oct 10, 2021 17:05	19,375	155,900,876	87,185,576	0	2,228,224
3	Oct 10, 2021 17:06	19,381	163,501,836	87,215,368	0	2,244,608
4	Oct 10, 2021 17:06	19,382	156,586,883	87,217,102	0	2,244,608
5	Oct 10, 2021 17:05	19,389	145,096,112	87,252,722	0	2,244,608
6	Oct 10, 2021 17:06	19,414	145,701,187	87,364,218	0	2,228,224
7	Oct 10, 2021 17:05	26,805	311,486,541	84,630,000	35,992,000	29,577,216
8	Oct 10, 2021 17:06	26,832	312,669,410	88,753,000	31,992,000	29,634,560
9	Oct 10, 2021 17:06	26,840	309,877,128	88,778,000	32,001,000	29,638,656
10	Oct 10, 2021 17:06	26,844	310,557,436	93,004,000	27,794,000	29,609,984
11	Oct 10, 2021 17:06	26,856	310,840,230	92,229,000	28,622,000	29,765,632
12	Oct 10, 2021 17:06	26,904	314,442,689	90,537,000	30,529,000	29,581,312
13	Oct 10, 2021 17:05	26,943	310,638,406	86,462,000	34,783,000	29,638,656
14	Oct 10, 2021 17:06	26,956	309,701,833	90,712,000	30,589,000	29,638,656
15	Oct 10, 2021 17:05	26,963	309,682,965	87,087,000	34,248,000	29,585,408
16	Oct 10, 2021 17:05	26,963	317,156,338	89,954,000	31,379,000	29,581,312
17	Oct 10, 2021 17:06	27,044	307,593,591	85,789,000	35,911,000	29,503,488
18	Oct 10, 2021 17:05	27,058	315,825,097	91,058,000	30,705,000	29,569,024
19	Oct 10, 2021 17:05	27,081	315,508,729	85,503,000	36,363,000	29,761,536
20	Oct 10, 2021 17:05	27,082	312,976,646	85,908,000	35,961,000	29,638,656
21	Oct 10, 2021 17:05	27,123	322,668,428	88,954,000	33,099,000	29,638,656
22	Oct 10, 2021 17:05	27,140	313,139,591	93,203,000	28,925,000	29,638,656
23	Oct 10, 2021 17:06	27,142	309,874,199	93,785,000	28,353,000	29,638,656
24	Oct 10, 2021 17:06	27,194	315,497,744	95,058,000	27,315,000	29,573,120

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