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
Aug 16, 2025 08:31	Aniruddha Deb	CPPclang++18.1.3	Success	9,847
Aug 16, 2025 08:31	Aniruddha Deb	CPPg++13.3.0	Success	6,633
Aug 16, 2025 08:29	Aniruddha Deb	CPPg++13.3.0	Success	6,622+39.10 RP
Aug 16, 2025 08:28	Aniruddha Deb	CPPclang++18.1.3	Error
Aug 16, 2025 08:15	Aniruddha Deb	CPPclang++18.1.3	Success	6,871
Aug 16, 2025 08:14	Aniruddha Deb	CPPg++13.3.0	Success	6,798+1.73 RP
Aug 16, 2025 08:13	Aniruddha Deb	CPPg++13.3.0	Success	7,448
Aug 7, 2025 22:01	Aniruddha Deb	CPPg++13.3.0	Success	7,451
Aug 7, 2025 21:58	Aniruddha Deb	CPPg++13.3.0	Success	7,428
Aug 2, 2025 10:42	Aniruddha Deb	CPPg++13.3.0	Error
Aug 2, 2025 10:40	Aniruddha Deb	CPPg++13.3.0	Success	7,426
Aug 2, 2025 09:41	Aniruddha Deb	CPPg++13.3.0	Error
Jul 31, 2025 22:13	Aniruddha Deb	CPPg++13.3.0	Success	6,806+9.01 RP
Jul 31, 2025 22:12	Aniruddha Deb	CPPg++13.3.0	Success	6,848+45.85 RP
Jul 31, 2025 22:09	Aniruddha Deb	CPPg++13.3.0	Success	7,070+311.16 RP
Jul 31, 2025 22:08	Aniruddha Deb	CPPg++13.3.0	Error
Jul 31, 2025 22:03	Aniruddha Deb	CPPg++13.3.0	Success	9,064+77.83 RP
Jul 31, 2025 22:01	Aniruddha Deb	CPPg++13.3.0	Success	14,175
Jul 31, 2025 22:01	Aniruddha Deb	CPPg++13.3.0	Success	23,082
Jul 31, 2025 21:16	Aniruddha Deb	CPPg++13.3.0	Error
Jul 8, 2025 21:21	Aniruddha Deb	CPPg++13.3.0	Success	9,752+39.92 RP
Jun 21, 2025 20:50	Aniruddha Deb	CPPg++13.3.0	Success	10,259
Jun 2, 2025 15:40	Keefe	CPPclang++18.1.3	Error
Jun 2, 2025 13:28	Keefe	CPPclang++18.1.3	Success	12,068+8.29 RP
May 31, 2025 15:29	Keefe	CPPclang++18.1.3	Success	12,190+69.71 RP
May 31, 2025 15:28	Keefe	CPPg++13.3.0	Success	13,544
May 16, 2025 19:35	Neko with ears	CSHARP8.0.16	Error
May 16, 2025 19:33	Neko with ears	CSHARP8.0.16	Error
May 16, 2025 19:14	Neko with ears	CSHARP8.0.16	Error
May 16, 2025 19:12	Neko with ears	CSHARP8.0.16	Error
May 16, 2025 18:52	Neko with ears	CSHARP8.0.16	Error
May 16, 2025 18:50	Neko with ears	CSHARP8.0.16	Error
May 16, 2025 18:28	Neko with ears	CSHARP8.0.16	Error
May 16, 2025 18:24	Neko with ears	CSHARP8.0.16	Error
May 16, 2025 18:22	Neko with ears	CSHARP8.0.16	Error
May 16, 2025 18:01	Neko with ears	CSHARP8.0.16	Error
May 16, 2025 17:36	Neko with ears	CSHARP8.0.16	Error
May 16, 2025 17:34	Neko with ears	CSHARP8.0.16	Error
May 16, 2025 17:33	Neko with ears	CSHARP8.0.16	Error
May 16, 2025 12:10	Neko with ears	CSHARP8.0.16	Error
May 16, 2025 11:55	Neko with ears	CSHARP8.0.16	Error
May 16, 2025 11:48	Neko with ears	CSHARP8.0.16	Error
May 16, 2025 11:46	Neko with ears	CSHARP8.0.16	Error
May 16, 2025 11:45	Neko with ears	CSHARP8.0.16	Error
May 16, 2025 11:30	Neko with ears	CSHARP8.0.16	Error
May 16, 2025 11:30	Neko with ears	CSHARP8.0.16	Error
May 16, 2025 08:13	Neko with ears	CSHARP8.0.16	Error
May 16, 2025 08:09	Neko with ears	CSHARP8.0.16	Success	416,740+24.00 RP
May 16, 2025 08:03	Neko with ears	CSHARP8.0.16	Error
May 13, 2025 18:33	Keefe	CPPg++13.3.0	Error
May 13, 2025 18:28	Keefe	CPPg++13.3.0	Success	13,322+1.80 RP
May 13, 2025 18:26	Keefe	CPPg++13.3.0	Success	13,354+12.79 RP
May 13, 2025 18:25	Keefe	CPPg++13.3.0	Success	13,586+20.44 RP
May 13, 2025 18:12	Keefe	CPPg++13.3.0	Error
May 13, 2025 18:05	Keefe	CPPg++13.3.0	Error
May 2, 2025 04:23	Keefe	CPPg++13.3.0	Error
May 2, 2025 04:20	Keefe	CPPg++13.3.0	Error
May 2, 2025 04:17	Keefe	CPPg++13.3.0	Error
May 2, 2025 03:55	Keefe	CPPg++13.3.0	Error
May 2, 2025 03:50	Keefe	CPPg++13.3.0	Error
May 2, 2025 03:48	Keefe	CPPg++13.3.0	Error
May 2, 2025 03:43	Keefe	CPPg++13.3.0	Error
May 2, 2025 03:13	Keefe	CPPg++13.3.0	Error
May 2, 2025 03:09	Keefe	CPPg++13.3.0	Success	13,974+1.99 RP
May 2, 2025 03:04	Keefe	CPPg++13.3.0	Success	14,013+118.95 RP
May 2, 2025 00:26	Keefe	CPPg++13.3.0	Error
May 2, 2025 00:21	Keefe	CPPg++13.3.0	Error
May 2, 2025 00:05	Keefe	CPPg++13.3.0	Error
May 2, 2025 00:03	Keefe	CPPg++13.3.0	Error
Apr 23, 2025 09:09	NoSIMD_C#	CSHARP9.0.4	Success	20,470
Apr 23, 2025 09:04	NoSIMD_C#	CSHARP9.0.4	Success	20,306
Apr 22, 2025 17:39	NoSIMD_C#	CSHARP9.0.4	Success	22,127
Apr 22, 2025 17:30	NoSIMD_C#	CSHARP9.0.4	Error
Apr 22, 2025 17:11	NoSIMD_C#	CSHARP9.0.4	Error
Apr 22, 2025 17:06	NoSIMD_C#	CSHARP9.0.4	Error
Apr 22, 2025 16:56	NoSIMD_C#	CSHARP9.0.4	Success	20,292
Apr 18, 2025 20:56	Keefe	CPPclang++18.1.3	Success	16,816+594.67 RP
Apr 18, 2025 20:52	Keefe	CPPclang++18.1.3	Error
Apr 18, 2025 20:51	Keefe	CPPclang++18.1.3	Error
Apr 18, 2025 00:02	Chandrasekaran Akash	GOgo1.24.2	Success	113,205+4.53 RP
Apr 17, 2025 23:11	Chandrasekaran Akash	GOgo1.24.2	Success	369,786
Apr 17, 2025 23:08	Chandrasekaran Akash	GOgo1.24.2	Success	1,193,901
Apr 17, 2025 23:08	Chandrasekaran Akash	GOgo1.24.2	Success	119,318+27.58 RP
Apr 17, 2025 23:06	Chandrasekaran Akash	GOgo1.24.2	Success	177,827+1.28 RP
Apr 17, 2025 23:04	Chandrasekaran Akash	GOgo1.24.2	Success	181,984+54.95 RP
Apr 17, 2025 23:02	Chandrasekaran Akash	GOgo1.24.2	Error
Apr 17, 2025 22:22	Chandrasekaran Akash	CPPclang++18.1.3	Error
Apr 17, 2025 22:20	Chandrasekaran Akash	CPPclang++18.1.3	Error
Apr 17, 2025 22:16	Chandrasekaran Akash	CPPclang++18.1.3	Error
Apr 17, 2025 22:14	Chandrasekaran Akash	CPPclang++18.1.3	Error
Apr 17, 2025 22:11	Chandrasekaran Akash	CPPclang++18.1.3	Error
Apr 17, 2025 22:11	Chandrasekaran Akash	CPPclang++18.1.3	Error
Apr 17, 2025 22:10	Chandrasekaran Akash	CPPclang++18.1.3	Error
Apr 17, 2025 22:10	Chandrasekaran Akash	CPPclang++18.1.3	Error
Apr 17, 2025 22:05	Chandrasekaran Akash	CPPclang++18.1.3	Error
Apr 17, 2025 22:03	Chandrasekaran Akash	CPPclang++18.1.3	Error
Apr 9, 2025 17:43	NoSIMD_C#	CSHARP9.0.0-rc.2	Success	20,217
Apr 8, 2025 12:34	Andrey Likhachev	GOgo1.24.2	Success	64,818
Apr 8, 2025 12:31	Andrey Likhachev	RUSTrust-1.86.0	Success	25,302+20.36 RP
Apr 8, 2025 12:26	Andrey Likhachev	RUSTrust-1.86.0	Success	26,676+43.51 RP

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