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	1:20.1.2-0ubuntu1~24.04.3	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	3.0.13-0ubuntu3.11	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
Jun 28, 2026 05:22	Victor Mercklé	CPPg++14.2.0	Success	3,514
Jun 28, 2026 05:17	Victor Mercklé	CPPg++14.2.0	Success	3,527
Jun 28, 2026 04:59	Victor Mercklé	CPPg++14.2.0	Success	20,202
Jun 28, 2026 04:52	Victor Mercklé	CPPg++14.2.0	Success	3,523
Jun 28, 2026 04:46	Victor Mercklé	CPPg++14.2.0	Success	3,503
Jun 28, 2026 04:39	Victor Mercklé	CPPg++14.2.0	Success	3,526
Jun 28, 2026 04:24	Victor Mercklé	CPPg++14.2.0	Success	3,530
Jun 28, 2026 04:19	Victor Mercklé	CPPg++14.2.0	Success	3,518
Jun 28, 2026 04:11	Victor Mercklé	CPPg++14.2.0	Success	3,514
Jun 28, 2026 04:01	Victor Mercklé	CPPg++14.2.0	Success	3,496
Jun 28, 2026 03:54	Victor Mercklé	CPPg++14.2.0	Success	3,534
Jun 23, 2026 23:05	Victor Mercklé	CPPg++14.2.0	Success	19,637
Jun 23, 2026 22:59	Victor Mercklé	CPPg++14.2.0	Success	3,652
Jun 23, 2026 22:53	Victor Mercklé	CPPg++14.2.0	Success	3,522
Jun 23, 2026 22:46	Victor Mercklé	CPPg++14.2.0	Success	9,739
Jun 23, 2026 22:40	Victor Mercklé	CPPg++14.2.0	Success	3,510
Jun 23, 2026 22:35	Victor Mercklé	CPPg++14.2.0	Success	3,510
Jun 23, 2026 22:30	Victor Mercklé	CPPg++14.2.0	Success	3,498
Jun 23, 2026 22:25	Victor Mercklé	CPPg++14.2.0	Success	3,544
Jun 23, 2026 22:20	Victor Mercklé	CPPg++14.2.0	Success	3,768
Jun 23, 2026 01:38	Victor Mercklé	CPPg++14.2.0	Success	3,552
Jun 23, 2026 01:31	Victor Mercklé	CPPg++14.2.0	Success	3,526
Jun 23, 2026 01:20	Victor Mercklé	CPPg++14.2.0	Success	3,515
Jun 23, 2026 01:15	Victor Mercklé	CPPg++14.2.0	Success	3,549
Jun 23, 2026 01:09	Victor Mercklé	CPPg++14.2.0	Success	3,538
Jun 23, 2026 01:03	Victor Mercklé	CPPg++14.2.0	Success	3,528
Jun 23, 2026 00:58	Victor Mercklé	CPPg++14.2.0	Success	3,536+5.00 RP
Jun 21, 2026 20:23	A_Shaman	CPPg++10.5.0	Error
Jun 21, 2026 20:21	A_Shaman	CPPg++10.5.0	Error
Jun 21, 2026 20:19	A_Shaman	CPPg++10.5.0	Error
Jun 21, 2026 20:16	A_Shaman	CPPg++10.5.0	Error
Jun 21, 2026 20:13	A_Shaman	CPPg++10.5.0	Error
Jun 21, 2026 20:11	A_Shaman	CPPg++10.5.0	Error
Jun 21, 2026 20:08	A_Shaman	CPPg++10.5.0	Error
Jun 21, 2026 20:06	A_Shaman	CPPg++10.5.0	Error
Jun 21, 2026 20:02	A_Shaman	CPPg++10.5.0	Error
Jun 21, 2026 20:00	A_Shaman	CPPg++10.5.0	Success	30,161+331.55 RP
Jun 20, 2026 18:49	A_Shaman	CPPg++10.5.0	Error
Jun 20, 2026 18:46	A_Shaman	CPPg++10.5.0	Error
Jun 20, 2026 18:43	A_Shaman	CPPg++10.5.0	Error
Jun 20, 2026 18:41	A_Shaman	CPPg++10.5.0	Error
Jun 20, 2026 18:38	A_Shaman	CPPg++10.5.0	Error
Jun 20, 2026 07:47	A_Shaman	CPPg++10.5.0	Error
Jun 19, 2026 18:48	Andrey Likhachev	RUSTrust-1.86.0	Error
Jun 19, 2026 18:25	Andrey Likhachev	CPPg++10.5.0	Success	76,994
Jun 12, 2026 14:34	Victor Mercklé	CPPg++14.2.0	Success	3,500
Jun 12, 2026 14:30	Victor Mercklé	CPPg++14.2.0	Success	3,536
Jun 12, 2026 14:24	Victor Mercklé	CPPg++14.2.0	Success	3,558
Jun 12, 2026 14:19	Victor Mercklé	CPPg++14.2.0	Success	3,509
Jun 12, 2026 14:14	Victor Mercklé	CPPg++14.2.0	Success	3,524
Jun 12, 2026 14:06	Victor Mercklé	CPPg++14.2.0	Success	3,516
Jun 12, 2026 13:56	Victor Mercklé	CPPg++14.2.0	Success	3,518
Jun 12, 2026 13:46	Victor Mercklé	CPPg++14.2.0	Success	3,526
Jun 12, 2026 13:41	Victor Mercklé	CPPg++14.2.0	Success	3,538
Jun 12, 2026 13:36	Victor Mercklé	CPPg++14.2.0	Success	3,534
Jun 12, 2026 13:27	Victor Mercklé	CPPg++14.2.0	Success	3,533
Jun 12, 2026 13:19	Victor Mercklé	CPPg++14.2.0	Success	3,641
Jun 11, 2026 05:11	Victor Mercklé	GOgo1.26.2	Success	3,831
Jun 11, 2026 05:04	Victor Mercklé	GOgo1.26.2	Success	3,800
Jun 11, 2026 04:54	Victor Mercklé	GOgo1.26.2	Success	3,794+9.69 RP
Jun 11, 2026 04:46	Victor Mercklé	GOgo1.26.2	Success	3,825
Jun 11, 2026 04:22	Victor Mercklé	GOgo1.26.2	Success	3,808+278.08 RP
Jun 11, 2026 00:26	Victor Mercklé	CPPg++14.2.0	Success	3,522
Jun 11, 2026 00:18	Victor Mercklé	CPPg++14.2.0	Success	3,509
Jun 11, 2026 00:12	Victor Mercklé	CPPg++14.2.0	Success	3,511
Jun 11, 2026 00:07	Victor Mercklé	CPPg++14.2.0	Success	3,518
Jun 11, 2026 00:02	Victor Mercklé	CPPg++14.2.0	Success	3,520
Jun 10, 2026 23:57	Victor Mercklé	CPPg++14.2.0	Success	3,507
Jun 10, 2026 23:52	Victor Mercklé	CPPg++14.2.0	Success	3,525
Jun 10, 2026 23:47	Victor Mercklé	CPPg++14.2.0	Success	3,504
Jun 10, 2026 23:42	Victor Mercklé	CPPg++14.2.0	Success	3,529
Jun 10, 2026 23:37	Victor Mercklé	CPPg++14.2.0	Success	3,555
Jun 10, 2026 23:27	Victor Mercklé	CPPg++14.2.0	Success	3,531
Jun 10, 2026 23:23	Victor Mercklé	CPPg++14.2.0	Success	3,526
Jun 10, 2026 23:17	Victor Mercklé	CPPg++14.2.0	Success	3,511
Jun 10, 2026 23:12	Victor Mercklé	CPPg++14.2.0	Success	3,523
Jun 10, 2026 23:07	Victor Mercklé	CPPg++14.2.0	Success	3,529
Jun 10, 2026 23:02	Victor Mercklé	CPPg++14.2.0	Success	3,533
Jun 10, 2026 22:55	Victor Mercklé	CPPg++14.2.0	Success	3,547
Jun 10, 2026 22:50	Victor Mercklé	CPPg++14.2.0	Success	3,526
Jun 10, 2026 22:44	Victor Mercklé	CPPg++14.2.0	Success	3,514
Jun 10, 2026 22:38	Victor Mercklé	CPPg++14.2.0	Success	3,536
Jun 10, 2026 22:31	Victor Mercklé	CPPg++14.2.0	Success	3,770
Jun 10, 2026 22:20	Victor Mercklé	CPPg++14.2.0	Success	3,522
Jun 10, 2026 22:15	Victor Mercklé	CPPg++14.2.0	Success	3,517
Jun 10, 2026 22:10	Victor Mercklé	CPPg++14.2.0	Success	3,534
Jun 10, 2026 22:05	Victor Mercklé	CPPg++14.2.0	Success	3,537
Jun 10, 2026 20:44	Victor Mercklé	CSHARP10.0.7	Success	24,788
Jun 10, 2026 20:37	Victor Mercklé	CSHARP10.0.7	Success	25,136
Jun 10, 2026 20:32	Victor Mercklé	CSHARP10.0.7	Error
Jun 10, 2026 20:25	Victor Mercklé	CSHARP10.0.7	Success	26,163
Jun 10, 2026 06:30	Victor Mercklé	CSHARP10.0.7	Success	3,814
Jun 10, 2026 06:23	Victor Mercklé	CSHARP10.0.7	Success	3,813+0.69 RP
Jun 10, 2026 06:14	Victor Mercklé	CSHARP10.0.7	Success	3,836
Jun 10, 2026 06:06	Victor Mercklé	CSHARP10.0.7	Success	3,814+12.32 RP
Jun 10, 2026 05:57	Victor Mercklé	CSHARP10.0.7	Success	3,832+425.72 RP
Jun 10, 2026 01:52	Victor Mercklé	ZIG0.16.0	Success	3,539
Jun 10, 2026 01:41	Victor Mercklé	ZIG0.16.0	Success	3,540
Jun 10, 2026 01:29	Victor Mercklé	ZIG0.16.0	Success	3,539
Jun 10, 2026 00:49	Victor Mercklé	ZIG0.16.0	Success	3,538+408.66 RP

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