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 09:35

Ilya AniskovetsScore: 14,726Success

Source Code

Source code access is restricted. Log in to request access.

Challenge History

No challenges yet.

Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Oct 16, 2021 09:37	7,192	90,687,208	32,363,546	0	2,277,376
2	Oct 16, 2021 09:35	7,206	96,395,241	32,427,476	0	2,277,376
3	Oct 16, 2021 09:40	7,224	101,354,192	32,506,447	0	2,273,280
4	Oct 16, 2021 09:35	7,236	95,560,171	32,562,462	0	2,260,992
5	Oct 16, 2021 09:37	7,242	97,703,529	32,590,952	0	2,277,376
6	Oct 16, 2021 09:40	7,251	99,912,295	32,630,968	0	2,269,184
7	Oct 16, 2021 09:37	7,267	93,980,607	32,699,278	0	2,269,184
8	Oct 16, 2021 09:40	7,306	97,683,598	32,876,539	0	2,265,088
9	Oct 16, 2021 09:35	7,319	94,161,381	32,935,092	0	2,273,280
10	Oct 16, 2021 09:40	14,389	250,059,884	34,608,000	30,142,000	29,728,768
11	Oct 16, 2021 09:35	14,452	252,098,918	34,116,000	30,917,000	29,671,424
12	Oct 16, 2021 09:37	14,549	248,695,790	29,929,000	35,541,000	29,548,544
13	Oct 16, 2021 09:35	14,596	251,606,566	30,315,000	35,368,000	29,540,352
14	Oct 16, 2021 09:40	14,604	253,455,718	30,806,000	34,914,000	29,630,464
15	Oct 16, 2021 09:40	14,620	255,942,412	32,374,000	33,418,000	29,593,600
16	Oct 16, 2021 09:37	14,693	259,342,369	30,142,000	35,977,000	29,597,696
17	Oct 16, 2021 09:37	14,710	253,609,517	36,644,000	29,552,000	29,696,000
18	Oct 16, 2021 09:40	14,724	261,396,265	29,344,000	36,916,000	29,728,768
19	Oct 16, 2021 09:40	14,726	250,841,493	32,623,000	33,643,000	29,552,640
20	Oct 16, 2021 09:37	14,734	253,996,951	30,677,000	35,625,000	29,556,736
21	Oct 16, 2021 09:40	14,743	257,136,167	30,245,000	36,099,000	29,663,232
22	Oct 16, 2021 09:35	14,743	251,776,956	28,565,000	37,780,000	29,728,768
23	Oct 16, 2021 09:35	14,772	252,398,834	31,749,000	34,725,000	29,511,680
24	Oct 16, 2021 09:37	14,774	255,826,054	33,787,000	32,697,000	29,675,520
25	Oct 16, 2021 09:35	14,782	255,240,050	33,259,000	33,259,000	29,614,080
26	Oct 16, 2021 09:35	14,790	253,393,192	34,971,000	31,586,000	29,696,000
27	Oct 16, 2021 09:37	14,804	254,765,506	31,228,000	35,392,000	29,556,736
28	Oct 16, 2021 09:40	14,824	256,004,154	37,599,000	29,109,000	29,589,504
29	Oct 16, 2021 09:35	14,848	252,827,277	35,106,000	31,709,000	29,687,808
30	Oct 16, 2021 09:37	14,860	261,831,032	34,550,000	32,321,000	29,495,296
31	Oct 16, 2021 09:37	14,866	261,238,070	36,284,000	30,615,000	29,523,968
32	Oct 16, 2021 09:40	14,870	254,359,863	34,006,000	32,909,000	29,577,216
33	Oct 16, 2021 09:35	14,909	256,182,156	30,585,000	36,505,000	29,601,792
34	Oct 16, 2021 09:35	14,911	255,283,141	37,670,000	29,430,000	29,630,464
35	Oct 16, 2021 09:40	14,987	260,641,005	33,202,000	34,239,000	29,540,352
36	Oct 16, 2021 09:37	15,032	260,555,040	31,298,000	36,346,000	29,540,352

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