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.

Date	Author	Language	Status	Score
Apr 22, 2026 15:09	olliecrow	ZIG0.15.1	Success	837,629
Apr 22, 2026 14:44	olliecrow	RUSTrust-1.95.0	Success	6,079
Apr 22, 2026 14:22	olliecrow	CPPg++10.5.0	Success	8,879
Apr 22, 2026 13:16	Ben	CPPg++14.2.0	Success	14,456+167.15 RP
Apr 22, 2026 11:47	olliecrow	CSHARP9.0.15	Success	5,954+655.69 RP
Apr 22, 2026 11:11	olliecrow	CPPg++10.5.0	Success	9,950
Apr 22, 2026 05:43	olliecrow	ZIG0.15.1	Error
Apr 22, 2026 05:17	olliecrow	RUSTrust-1.95.0	Success	6,294
Apr 22, 2026 03:46	olliecrow	CPPclang++18.1.3	Success	6,711
Apr 22, 2026 03:44	olliecrow	CPPclang++18.1.3	Success	7,010
Apr 22, 2026 03:42	olliecrow	CPPg++10.5.0	Success	9,562
Apr 21, 2026 22:16	Ben	CPPg++14.2.0	Error
Apr 21, 2026 22:14	Ben	CPPg++14.2.0	Error
Apr 21, 2026 15:00	Charles Cabergs	CPPg++13.3.0	Success	6,305+198.31 RP
Apr 21, 2026 04:31	Charles Cabergs	CPPg++13.3.0	Success	7,206+19.74 RP
Apr 21, 2026 01:28	Taylor Dettling	RUSTrust-1.95.0	Success	143,118+69.87 RP
Apr 20, 2026 23:03	Charles Cabergs	CPPg++13.3.0	Success	8,242
Apr 20, 2026 19:59	Charles Cabergs	CPPg++13.3.0	Success	7,310+26.25 RP
Apr 20, 2026 18:43	Ben	CPPg++13.3.0	Success	19,062+524.60 RP
Apr 20, 2026 18:43	Ben	CPPclang++18.1.3	Success	21,532
Apr 20, 2026 16:29	Ben	CPPclang++18.1.3	Error
Apr 20, 2026 16:29	Ben	CPPg++13.3.0	Error
Apr 20, 2026 16:29	Ben	CPPg++14.2.0	Error
Apr 20, 2026 15:52	Dominique Garmier	RUSTrust-1.95.0	Success	7,873
Apr 20, 2026 14:53	olliecrow	ZIG0.14.0	Error
Apr 20, 2026 14:51	olliecrow	RUSTrust-1.94.0	Success	5,563
Apr 20, 2026 14:48	olliecrow	CPPg++13.3.0	Success	9,026
Apr 20, 2026 13:59	Dominique Garmier	CPPclang++20.1.2	Success	6,862
Apr 20, 2026 09:50	Dominique Garmier	RUSTrust-1.95.0	Error
Apr 19, 2026 09:45	olliecrow	CPPclang++18.1.3	Success	6,509
Apr 19, 2026 07:48	olliecrow	CPPclang++18.1.3	Success	5,041
Apr 19, 2026 07:46	olliecrow	CPPclang++18.1.3	Success	6,357
Apr 19, 2026 07:38	olliecrow	CPPclang++18.1.3	Success	4,958
Apr 19, 2026 03:49	olliecrow	CPPclang++18.1.3	Success	6,646
Apr 18, 2026 21:20	olliecrow	ZIG0.14.0	Success	46,219
Apr 18, 2026 17:55	Charles Cabergs	CPPg++13.3.0	Success	7,453+294.62 RP
Apr 18, 2026 06:17	Charles Cabergs	CPPg++13.3.0	Success	9,550+233.38 RP
Apr 18, 2026 00:40	Charles Cabergs	CPPg++13.3.0	Success	25,966
Apr 18, 2026 00:23	olliecrow	ZIG0.14.0	Error
Apr 17, 2026 20:47	Charles Cabergs	CPPg++13.3.0	Success	12,289+813.74 RP
Apr 17, 2026 20:42	Charles Cabergs	CPPg++13.3.0	Error
Apr 17, 2026 20:37	Charles Cabergs	CPPg++13.3.0	Error
Apr 17, 2026 18:51	Charles Cabergs	CPPg++13.3.0	Error
Apr 17, 2026 18:32	Charles Cabergs	CPPg++13.3.0	Error
Apr 17, 2026 06:05	Josu San Martin	CPPg++13.3.0	Success	4,640
Apr 17, 2026 06:02	Josu San Martin	CPPg++13.3.0	Success	4,567
Apr 17, 2026 01:38	Josu San Martin	CPPg++13.3.0	Success	5,117
Apr 17, 2026 00:40	Josu San Martin	CPPg++13.3.0	Success	4,592
Apr 17, 2026 00:21	Josu San Martin	CPPg++13.3.0	Success	4,866
Apr 16, 2026 23:39	Josu San Martin	CPPg++13.3.0	Success	4,787
Apr 16, 2026 23:36	Josu San Martin	CPPclang++18.1.3	Success	5,086
Apr 16, 2026 23:34	Josu San Martin	CPPclang++18.1.3	Success	5,644
Apr 16, 2026 23:00	Josu San Martin	CPPg++13.3.0	Success	4,762
Apr 16, 2026 22:58	Josu San Martin	CPPg++13.3.0	Success	4,866
Apr 16, 2026 22:56	Josu San Martin	CPPg++13.3.0	Success	4,530+3.41 RP
Apr 16, 2026 22:50	Josu San Martin	CPPg++13.3.0	Success	5,117
Apr 16, 2026 22:47	Josu San Martin	CPPg++13.3.0	Success	4,968
Apr 16, 2026 21:51	olliecrow	RUSTrust-1.94.0	Success	6,794
Apr 16, 2026 21:47	olliecrow	ZIG0.14.0	Success	41,746
Apr 16, 2026 21:30	Josu San Martin	CPPg++13.3.0	Success	5,093
Apr 16, 2026 21:30	olliecrow	GOgo1.26.1	Success	9,346
Apr 16, 2026 21:27	Josu San Martin	CPPg++13.3.0	Success	5,047
Apr 16, 2026 19:00	Josu San Martin	CPPg++13.3.0	Success	4,863
Apr 16, 2026 18:11	olliecrow	GOgo1.26.1	Success	9,116+205.87 RP
Apr 16, 2026 17:48	Josu San Martin	CPPg++13.3.0	Success	7,534
Apr 16, 2026 17:22	olliecrow	ZIG0.14.0	Success	876,051
Apr 16, 2026 17:14	olliecrow	ZIG0.14.0	Error
Apr 16, 2026 16:57	olliecrow	ZIG0.14.0	Success	48,236
Apr 16, 2026 16:29	olliecrow	ZIG0.14.0	Success	873,626
Apr 16, 2026 16:29	olliecrow	ZIG0.14.0	Success	870,131
Apr 16, 2026 16:27	olliecrow	ZIG0.14.0	Success	921,366
Apr 16, 2026 16:25	olliecrow	ZIG0.14.0	Success	47,763
Apr 15, 2026 03:59	olliecrow	RUSTrust-1.94.0	Success	6,804
Apr 15, 2026 03:07	Josu San Martin	CPPg++13.3.0	Success	4,871
Apr 15, 2026 00:45	Josu San Martin	RUSTrust-1.94.1	Success	5,238+69.20 RP
Apr 15, 2026 00:15	Josu San Martin	CPPg++13.3.0	Success	5,270
Apr 15, 2026 00:02	olliecrow	CPPclang++18.1.3	Success	8,773
Apr 14, 2026 23:03	olliecrow	ZIG0.14.0	Success	832,404
Apr 14, 2026 22:04	olliecrow	CPPclang++18.1.3	Success	6,327
Apr 14, 2026 22:00	olliecrow	ZIG0.14.0	Success	824,806
Apr 14, 2026 21:22	Josu San Martin	CPPg++13.3.0	Success	5,720
Apr 14, 2026 21:16	Josu San Martin	CPPg++13.3.0	Success	6,333
Apr 14, 2026 15:01	Josu San Martin	CPPclang++18.1.3	Success	5,253
Apr 14, 2026 14:30	Josu San Martin	CPPg++13.3.0	Success	4,889
Apr 14, 2026 07:00	Yuriy Lyfenko	CPPg++13.3.0	Success	3,014
Apr 14, 2026 06:58	Yuriy Lyfenko	CPPg++13.3.0	Success	3,114
Apr 14, 2026 06:51	Yuriy Lyfenko	CPPclang++18.1.3	Success	5,897
Apr 14, 2026 04:54	Josu San Martin	CPPg++13.3.0	Success	5,253
Apr 14, 2026 04:44	Josu San Martin	CPPg++13.3.0	Success	4,767
Apr 14, 2026 04:41	Josu San Martin	CPPg++13.3.0	Success	5,261
Apr 14, 2026 03:48	Josu San Martin	CPPg++13.3.0	Success	4,708
Apr 14, 2026 03:38	Josu San Martin	CPPg++13.3.0	Success	5,046
Apr 14, 2026 03:09	Josu San Martin	CPPg++13.3.0	Success	5,147
Apr 14, 2026 03:03	Josu San Martin	CPPg++13.3.0	Success	4,902
Apr 14, 2026 03:01	Josu San Martin	CPPg++13.3.0	Success	5,095
Apr 14, 2026 02:38	Josu San Martin	CPPg++13.3.0	Success	5,109
Apr 14, 2026 02:17	Josu San Martin	CPPg++13.3.0	Success	5,780
Apr 14, 2026 02:14	Josu San Martin	CPPg++13.3.0	Success	5,412
Apr 14, 2026 02:09	Josu San Martin	CPPclang++18.1.3	Success	5,588
Apr 14, 2026 02:08	Josu San Martin	CPPclang++18.1.3	Success	5,553

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