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
Sep 19, 2026 13:33	Andrew Epstein	CPPg++14.2.0	Success	85,611
Sep 19, 2026 13:28	Andrew Epstein	CPPg++14.2.0	Success	3,342
Sep 16, 2026 00:02	Josu San Martin	CPPg++14.2.0	Success	4,468
Sep 15, 2026 22:43	Josu San Martin	CPPg++14.2.0	Success	4,801
Sep 15, 2026 21:41	Josu San Martin	CPPg++14.2.0	Success	5,069
Sep 15, 2026 18:40	Josu San Martin	CPPg++14.2.0	Success	4,734
Sep 15, 2026 17:37	Josu San Martin	CPPg++14.2.0	Success	4,461
Sep 15, 2026 14:06	Josu San Martin	CPPg++14.2.0	Success	6,025
Sep 15, 2026 13:57	Josu San Martin	CPPg++14.2.0	Success	4,688
Sep 15, 2026 03:12	Josu San Martin	CPPclang++20.1.2	Success	5,225
Sep 14, 2026 09:07	Haha Expert	CPPg++14.2.0	Success	9,907
Sep 12, 2026 10:38	Haha Expert	CPPg++14.2.0	Error
Sep 12, 2026 10:35	Haha Expert	CPPg++14.2.0	Error
Sep 12, 2026 10:25	Haha Expert	CPPg++14.2.0	Error
Sep 12, 2026 10:21	Haha Expert	CPPg++14.2.0	Error
Sep 12, 2026 10:15	Haha Expert	CPPg++14.2.0	Error
Sep 12, 2026 10:13	Haha Expert	CPPg++14.2.0	Error
Sep 11, 2026 20:35	Andrew Epstein	CSHARP9.0.15	Success	401,203
Sep 10, 2026 16:27	Andrew Epstein	CPPg++14.2.0	Success	3,297+7.34 RP
Sep 10, 2026 04:04	Andrew Epstein	CPPg++14.2.0	Success	3,305+387.89 RP
Sep 10, 2026 04:00	Andrew Epstein	CPPclang++20.1.2	Success	4,742
Sep 10, 2026 03:56	Andrew Epstein	CPPg++14.2.0	Success	3,791+993.90 RP
Sep 10, 2026 03:49	Andrew Epstein	CPPg++14.2.0	Success	11,463
Sep 10, 2026 03:36	Andrew Epstein	CPPg++14.2.0	Success	6,083+25.80 RP
Sep 10, 2026 03:02	Andrew Epstein	CPPclang++20.1.2	Success	6,327
Sep 4, 2026 10:07	Victor Mercklé	CPPg++14.2.0	Success	1,642+22.22 RP
Sep 4, 2026 09:14	Victor Mercklé	CPPg++14.2.0	Success	1,646
Sep 4, 2026 08:41	Victor Mercklé	CPPg++14.2.0	Success	1,646
Sep 4, 2026 07:59	Victor Mercklé	CPPg++14.2.0	Success	1,649
Sep 4, 2026 07:35	Victor Mercklé	CPPg++14.2.0	Success	1,645+22.14 RP
Sep 4, 2026 07:24	Victor Mercklé	CPPg++14.2.0	Success	1,648+44.02 RP
Sep 4, 2026 07:02	Victor Mercklé	CPPg++14.2.0	Success	1,658
Sep 1, 2026 06:29	Victor Mercklé	GOgo1.26.2	Error
Sep 1, 2026 06:23	Victor Mercklé	GOgo1.26.2	Success	1,730+59.52 RP
Sep 1, 2026 06:16	Victor Mercklé	GOgo1.26.2	Success	1,748+306.64 RP
Sep 1, 2026 06:04	Victor Mercklé	GOgo1.26.2	Error
Sep 1, 2026 05:42	Victor Mercklé	GOgo1.26.2	Success	1,860
Sep 1, 2026 05:36	Victor Mercklé	GOgo1.26.2	Success	1,859
Sep 1, 2026 05:09	Victor Mercklé	CSHARP10.0.7	Success	1,726+867.63 RP
Sep 1, 2026 04:18	Victor Mercklé	CPPg++14.2.0	Success	1,665
Sep 1, 2026 04:12	Victor Mercklé	GOgo1.26.2	Success	1,847+151.03 RP
Sep 1, 2026 04:08	Victor Mercklé	RUSTrust-1.95.0	Success	1,668+171.09 RP
Sep 1, 2026 04:05	Victor Mercklé	ZIG0.16.0	Success	1,663+39.51 RP
Sep 1, 2026 04:00	Victor Mercklé	CPPg++14.2.0	Success	1,660
Sep 1, 2026 03:52	Victor Mercklé	CPPg++14.2.0	Success	1,654+7.30 RP
Sep 1, 2026 03:41	Victor Mercklé	CPPg++14.2.0	Success	1,655+213.65 RP
Sep 1, 2026 03:10	Victor Mercklé	CPPg++14.2.0	Success	1,706
Sep 1, 2026 02:55	Victor Mercklé	CPPg++14.2.0	Success	1,708
Sep 1, 2026 02:26	Victor Mercklé	CPPg++14.2.0	Success	1,890
Sep 1, 2026 01:59	Victor Mercklé	CPPg++14.2.0	Success	1,933
Sep 1, 2026 01:36	Victor Mercklé	CPPg++14.2.0	Success	1,738
Sep 1, 2026 01:18	Victor Mercklé	CPPg++14.2.0	Success	1,708
Sep 1, 2026 01:10	Victor Mercklé	CPPg++14.2.0	Success	1,841
Sep 1, 2026 00:57	Victor Mercklé	CPPg++14.2.0	Success	1,707
Sep 1, 2026 00:43	Victor Mercklé	CPPg++14.2.0	Success	1,992
Sep 1, 2026 00:31	Victor Mercklé	CPPg++14.2.0	Success	1,746
Sep 1, 2026 00:14	Victor Mercklé	CPPg++14.2.0	Success	1,711
Aug 31, 2026 23:54	Victor Mercklé	CPPg++14.2.0	Success	1,707
Aug 31, 2026 23:32	Victor Mercklé	CPPg++14.2.0	Success	1,704+41.04 RP
Aug 31, 2026 23:17	Victor Mercklé	CPPg++14.2.0	Success	1,717
Aug 31, 2026 22:51	Victor Mercklé	CPPg++14.2.0	Success	1,775
Aug 31, 2026 22:40	Victor Mercklé	CPPg++14.2.0	Success	1,780
Aug 31, 2026 22:14	Victor Mercklé	CPPg++14.2.0	Success	1,912
Aug 31, 2026 22:00	Victor Mercklé	CPPg++14.2.0	Success	1,829
Aug 31, 2026 21:38	Victor Mercklé	CPPg++14.2.0	Success	1,976
Aug 31, 2026 21:28	Victor Mercklé	CPPg++14.2.0	Success	1,947
Aug 31, 2026 21:14	Victor Mercklé	CPPg++14.2.0	Success	1,858
Aug 31, 2026 21:02	Victor Mercklé	CPPg++14.2.0	Success	1,956
Aug 31, 2026 20:48	Victor Mercklé	CPPg++14.2.0	Success	1,722
Aug 31, 2026 20:43	Victor Mercklé	CPPg++14.2.0	Success	1,787
Aug 31, 2026 20:27	Victor Mercklé	CPPg++14.2.0	Success	1,729
Aug 31, 2026 20:18	Victor Mercklé	CPPg++14.2.0	Success	1,716+40.47 RP
Aug 31, 2026 20:14	Victor Mercklé	CPPg++14.2.0	Success	1,728+23.35 RP
Aug 31, 2026 20:06	Victor Mercklé	CPPg++14.2.0	Success	1,788
Aug 31, 2026 19:47	Victor Mercklé	CPPg++14.2.0	Success	1,735+3.32 RP
Aug 31, 2026 19:41	Victor Mercklé	CPPg++14.2.0	Success	1,736+9.94 RP
Aug 31, 2026 19:37	Victor Mercklé	CPPg++14.2.0	Success	1,816
Aug 31, 2026 19:33	Victor Mercklé	CPPg++14.2.0	Success	1,739+6.61 RP
Aug 31, 2026 19:25	Victor Mercklé	CPPg++14.2.0	Success	1,757
Aug 31, 2026 19:13	Victor Mercklé	CPPg++14.2.0	Success	1,856
Aug 31, 2026 19:07	Victor Mercklé	CPPg++14.2.0	Success	1,746
Aug 31, 2026 19:00	Victor Mercklé	CPPg++14.2.0	Success	1,779
Aug 31, 2026 18:51	Victor Mercklé	CPPg++14.2.0	Success	1,766
Aug 31, 2026 18:37	Victor Mercklé	CPPg++14.2.0	Success	1,752
Aug 31, 2026 17:51	Victor Mercklé	CPPg++14.2.0	Success	1,794
Aug 31, 2026 17:32	Victor Mercklé	CPPg++14.2.0	Success	1,764
Aug 31, 2026 17:27	Victor Mercklé	CPPg++14.2.0	Success	1,961
Aug 31, 2026 17:18	Victor Mercklé	CPPg++14.2.0	Success	1,966
Aug 31, 2026 17:01	Victor Mercklé	CPPg++14.2.0	Success	1,790
Aug 31, 2026 16:37	Victor Mercklé	CPPg++14.2.0	Success	1,841
Aug 31, 2026 16:32	Victor Mercklé	CPPg++14.2.0	Success	1,841
Aug 31, 2026 16:14	Victor Mercklé	GOgo1.26.2	Success	2,040
Aug 31, 2026 16:07	Victor Mercklé	CPPg++14.2.0	Success	1,774
Aug 31, 2026 15:56	Victor Mercklé	CPPg++14.2.0	Success	1,881
Aug 31, 2026 15:50	Victor Mercklé	CSHARP10.0.7	Success	2,113
Aug 31, 2026 15:44	Victor Mercklé	CPPg++14.2.0	Success	2,129
Aug 31, 2026 15:35	Victor Mercklé	ZIG0.16.0	Success	1,741+3.30 RP
Aug 31, 2026 15:31	Victor Mercklé	RUSTrust-1.95.0	Success	1,765
Aug 31, 2026 15:21	Victor Mercklé	CPPg++14.2.0	Success	1,783
Aug 31, 2026 15:08	Victor Mercklé	CPPg++14.2.0	Success	1,991

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