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 listNov 8, 2021 08:14

Ilya AniskovetsScore: 14,633Success

Source Code

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Challenge History

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Nov 8, 2021 08:14	7,193	102,015,347	32,370,593	0	2,277,376
2	Nov 8, 2021 08:15	7,212	110,442,429	32,452,065	0	2,273,280
3	Nov 8, 2021 08:15	7,228	107,472,724	32,524,077	0	2,277,376
4	Nov 8, 2021 08:15	7,235	105,989,845	32,558,869	0	2,273,280
5	Nov 8, 2021 08:15	7,236	91,204,624	32,562,077	0	2,281,472
6	Nov 8, 2021 08:14	7,285	93,993,966	32,780,389	0	2,285,568
7	Nov 8, 2021 08:14	7,308	106,634,944	32,886,601	0	2,252,800
8	Nov 8, 2021 08:15	7,327	94,899,882	32,970,184	0	2,277,376
9	Nov 8, 2021 08:15	7,327	103,410,112	32,972,218	0	2,269,184
10	Nov 8, 2021 08:15	14,418	250,553,711	33,488,000	31,395,000	29,548,544
11	Nov 8, 2021 08:15	14,437	252,003,916	28,770,000	36,195,000	29,630,464
12	Nov 8, 2021 08:15	14,477	254,894,899	31,070,000	34,077,000	29,540,352
13	Nov 8, 2021 08:15	14,508	257,492,228	29,331,000	35,954,000	29,663,232
14	Nov 8, 2021 08:15	14,526	248,551,531	35,453,000	29,913,000	29,708,288
15	Nov 8, 2021 08:15	14,615	253,084,355	33,422,000	32,344,000	29,630,464
16	Nov 8, 2021 08:15	14,628	254,849,239	29,921,000	35,906,000	29,544,448
17	Nov 8, 2021 08:15	14,629	256,507,083	32,408,000	33,421,000	29,732,864
18	Nov 8, 2021 08:15	14,631	252,545,947	35,115,000	30,726,000	29,630,464
19	Nov 8, 2021 08:15	14,633	252,866,916	30,929,000	34,920,000	29,544,448
20	Nov 8, 2021 08:15	14,640	250,765,765	34,616,000	31,266,000	29,642,752
21	Nov 8, 2021 08:14	14,647	250,961,456	33,479,000	32,433,000	29,696,000
22	Nov 8, 2021 08:15	14,653	261,846,258	32,462,000	33,476,000	29,589,504
23	Nov 8, 2021 08:14	14,659	256,307,085	32,460,000	33,507,000	29,663,232
24	Nov 8, 2021 08:14	14,674	256,064,911	30,553,000	35,481,000	29,630,464
25	Nov 8, 2021 08:15	14,682	251,471,720	36,575,000	29,495,000	29,704,192
26	Nov 8, 2021 08:15	14,686	254,113,367	28,454,000	37,633,000	29,630,464
27	Nov 8, 2021 08:15	14,696	252,296,952	40,199,000	25,935,000	29,630,464
28	Nov 8, 2021 08:14	14,716	260,677,706	31,582,000	34,638,000	29,544,448
29	Nov 8, 2021 08:15	14,743	255,800,984	36,726,000	29,618,000	29,667,328
30	Nov 8, 2021 08:15	14,778	257,413,870	33,251,000	33,251,000	29,548,544
31	Nov 8, 2021 08:14	14,779	251,244,328	32,214,000	34,293,000	29,663,232
32	Nov 8, 2021 08:14	14,782	257,725,930	33,786,000	32,731,000	29,609,984
33	Nov 8, 2021 08:14	14,821	256,889,779	32,336,000	34,357,000	29,663,232
34	Nov 8, 2021 08:15	14,890	253,571,005	29,673,000	37,331,000	29,548,544
35	Nov 8, 2021 08:14	15,011	267,825,464	38,601,000	28,950,000	29,757,440
36	Nov 8, 2021 08:14	15,039	261,483,040	34,393,000	33,283,000	29,609,984

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