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
Mar 30, 2026 13:20	Dominique Garmier	RUSTrust-1.94.1	Success	11,225
Mar 30, 2026 13:18	Dominique Garmier	RUSTrust-1.94.1	Success	7,667
Mar 30, 2026 13:16	Dominique Garmier	RUSTrust-1.94.1	Success	8,640
Mar 30, 2026 12:58	Dominique Garmier	RUSTrust-1.94.1	Success	11,377
Mar 30, 2026 12:20	Dominique Garmier	RUSTrust-1.94.1	Success	11,892
Mar 30, 2026 11:57	Dominique Garmier	RUSTrust-1.94.1	Success	13,078
Mar 30, 2026 11:08	Dominique Garmier	RUSTrust-1.94.1	Success	11,309
Mar 30, 2026 10:39	Dominique Garmier	RUSTrust-1.94.1	Success	216,229
Mar 30, 2026 09:49	Dominique Garmier	RUSTrust-1.94.1	Success	11,962
Mar 30, 2026 07:36	Dominique Garmier	RUSTrust-1.94.1	Success	5,529
Mar 30, 2026 05:29	Dominique Garmier	RUSTrust-1.94.1	Success	11,214
Mar 30, 2026 03:07	Dominique Garmier	RUSTrust-1.94.1	Success	9,856
Mar 30, 2026 03:07	Dominique Garmier	RUSTrust-1.94.1	Success	10,231
Mar 30, 2026 01:49	Dominique Garmier	RUSTrust-1.94.1	Success	8,419
Mar 29, 2026 23:59	Dominique Garmier	RUSTrust-1.94.1	Success	10,195
Mar 29, 2026 19:13	Dominique Garmier	RUSTrust-1.94.1	Success	217,537
Mar 29, 2026 15:00	Dominique Garmier	GOgo1.26.1	Success	14,363
Mar 29, 2026 02:21	Dominique Garmier	GOgo1.26.1	Success	15,126
Mar 29, 2026 00:46	Dominique Garmier	GOgo1.26.1	Success	15,534
Mar 29, 2026 00:21	Dominique Garmier	GOgo1.26.1	Success	13,597
Mar 28, 2026 23:54	Dominique Garmier	CPPg++13.3.0	Success	8,416
Mar 28, 2026 18:36	Dominique Garmier	GOgo1.26.1	Success	16,335
Mar 28, 2026 16:07	Dominique Garmier	GOgo1.26.1	Success	15,628
Mar 28, 2026 14:24	Dominique Garmier	GOgo1.26.1	Success	16,149
Mar 28, 2026 14:04	Dominique Garmier	RUSTrust-1.94.1	Success	201,201
Mar 28, 2026 13:29	Dominique Garmier	CPPclang++18.1.3	Success	7,082
Mar 28, 2026 12:59	Dominique Garmier	CPPg++13.3.0	Success	9,106
Mar 28, 2026 12:58	Dominique Garmier	RUSTrust-1.94.0	Success	8,691
Mar 28, 2026 12:58	Dominique Garmier	RUSTrust-1.94.0	Success	10,220
Mar 28, 2026 12:54	Dominique Garmier	RUSTrust-1.94.0	Success	201,276
Mar 28, 2026 12:50	Dominique Garmier	RUSTrust-1.94.0	Success	98,437
Mar 28, 2026 12:50	Dominique Garmier	RUSTrust-1.94.1	Success	98,371
Mar 28, 2026 12:49	Dominique Garmier	RUSTrust-1.94.1	Error
Mar 28, 2026 12:01	Dominique Garmier	CPPclang++18.1.3	Success	7,083
Mar 27, 2026 14:53	Dominique Garmier	ZIG0.13.0	Success	10,479
Mar 27, 2026 13:09	Dominique Garmier	ZIG0.13.0	Success	22,682
Mar 27, 2026 11:10	Dominique Garmier	ZIG0.13.0	Success	24,503
Mar 26, 2026 13:07	Dominique Garmier	CPPclang++18.1.3	Success	7,012
Mar 26, 2026 10:57	Dominique Garmier	RUSTrust-1.94.0	Success	8,705
Mar 26, 2026 10:36	Dominique Garmier	ZIG0.13.0	Success	5,042+32.76 RP
Mar 25, 2026 21:09	Dominique Garmier	ZIG0.13.0	Success	8,231
Mar 25, 2026 20:54	Dominique Garmier	ZIG0.13.0	Success	27,988
Mar 25, 2026 20:31	Dominique Garmier	ZIG0.13.0	Success	8,469
Mar 25, 2026 19:58	Dominique Garmier	ZIG0.13.0	Success	5,084+857.40 RP
Mar 25, 2026 18:19	Dominique Garmier	ZIG0.13.0	Success	9,400
Mar 25, 2026 17:45	Dominique Garmier	ZIG0.13.0	Success	32,214
Mar 25, 2026 16:58	Dominique Garmier	ZIG0.13.0	Error
Mar 25, 2026 16:46	Dominique Garmier	ZIG0.13.0	Success	30,685
Mar 25, 2026 15:37	Dominique Garmier	ZIG0.13.0	Success	8,585+729.40 RP
Mar 25, 2026 15:19	Dominique Garmier	RUSTrust-1.94.0	Success	8,706
Mar 25, 2026 15:02	Dominique Garmier	ZIG0.13.0	Success	22,966+43.82 RP
Mar 25, 2026 15:00	Dominique Garmier	ZIG0.13.0	Success	31,220
Mar 25, 2026 14:14	Dominique Garmier	ZIG0.13.0	Success	28,255
Mar 25, 2026 14:03	Dominique Garmier	ZIG0.13.0	Success	28,018
Mar 25, 2026 13:26	Dominique Garmier	ZIG0.13.0	Success	25,536+69.13 RP
Mar 25, 2026 12:20	Dominique Garmier	ZIG0.13.0	Success	31,010+57.04 RP
Mar 25, 2026 10:52	Dominique Garmier	ZIG0.13.0	Success	80,101
Mar 25, 2026 10:31	Dominique Garmier	ZIG0.13.0	Success	80,128
Mar 25, 2026 10:29	Dominique Garmier	ZIG0.13.0	Error
Mar 25, 2026 10:06	Dominique Garmier	ZIG0.14.0	Success	37,680
Mar 25, 2026 10:03	Dominique Garmier	ZIG0.13.0	Success	37,674+150.29 RP
Mar 25, 2026 09:39	Dominique Garmier	CPPclang++18.1.3	Success	7,085
Mar 25, 2026 06:03	Dominique Garmier	CPPclang++18.1.3	Success	9,451
Mar 25, 2026 04:56	Dominique Garmier	GOgo1.26.1	Success	17,773
Mar 25, 2026 04:36	Dominique Garmier	GOgo1.26.1	Success	16,145
Mar 25, 2026 01:59	Dominique Garmier	CPPclang++18.1.3	Success	9,372
Mar 25, 2026 01:59	Dominique Garmier	CPPclang++18.1.3	Success	9,478
Mar 25, 2026 01:08	Dominique Garmier	CPPclang++18.1.3	Success	8,690
Mar 25, 2026 01:06	Dominique Garmier	CPPclang++18.1.3	Success	7,593
Mar 24, 2026 22:31	Dominique Garmier	RUSTrust-1.94.0	Success	96,394
Mar 24, 2026 20:25	Dominique Garmier	RUSTrust-1.94.0	Success	7,252
Mar 24, 2026 19:37	Dominique Garmier	CPPclang++18.1.3	Success	10,082
Mar 24, 2026 12:41	Dominique Garmier	RUSTrust-1.94.0	Success	6,638
Mar 24, 2026 09:16	Dominique Garmier	RUSTrust-1.94.0	Success	5,528+5.55 RP
Mar 24, 2026 09:11	Dominique Garmier	RUSTrust-1.82.0	Success	5,545+19.62 RP
Mar 24, 2026 02:25	olliecrow	RUSTrust-1.94.0	Success	7,928
Mar 24, 2026 02:23	Dominique Garmier	GOgo1.26.1	Success	11,222+191.32 RP
Mar 24, 2026 00:52	Dominique Garmier	RUSTrust-1.94.0	Success	8,209
Mar 24, 2026 00:48	Dominique Garmier	RUSTrust-1.94.0	Success	8,106
Mar 23, 2026 16:42	Dominique Garmier	CPPg++13.3.0	Success	6,652
Mar 23, 2026 15:36	Dominique Garmier	CPPclang++18.1.3	Success	7,683
Mar 23, 2026 15:35	Dominique Garmier	CPPclang++18.1.3	Success	6,236
Mar 23, 2026 15:34	Dominique Garmier	CPPclang++18.1.3	Success	9,174
Mar 23, 2026 14:36	Dominique Garmier	CPPclang++18.1.3	Success	6,557
Mar 23, 2026 14:35	Dominique Garmier	CPPclang++18.1.3	Success	6,519
Mar 23, 2026 14:34	Dominique Garmier	CPPg++13.3.0	Success	7,994
Mar 23, 2026 14:34	Dominique Garmier	CPPclang++18.1.3	Success	5,889
Mar 23, 2026 12:56	Dominique Garmier	CPPclang++18.1.3	Success	6,116
Mar 23, 2026 11:56	Dominique Garmier	CPPclang++18.1.3	Error
Mar 23, 2026 11:33	Dominique Garmier	CPPclang++18.1.3	Success	5,971
Mar 23, 2026 10:26	Dominique Garmier	CPPclang++18.1.3	Success	6,863
Mar 23, 2026 10:25	Dominique Garmier	CPPclang++18.1.3	Success	6,474
Mar 23, 2026 10:24	Dominique Garmier	CPPg++13.3.0	Success	8,568
Mar 23, 2026 10:23	Dominique Garmier	CPPclang++18.1.3	Success	6,862
Mar 23, 2026 10:22	Dominique Garmier	CPPclang++18.1.3	Success	6,941
Mar 23, 2026 10:13	Dominique Garmier	CPPclang++18.1.3	Success	5,231+7.28 RP
Mar 23, 2026 10:10	Dominique Garmier	CPPclang++18.1.3	Success	5,251+124.09 RP
Mar 23, 2026 10:09	Dominique Garmier	CPPclang++18.1.3	Success	5,617+29.61 RP
Mar 23, 2026 10:06	Dominique Garmier	CPPclang++18.1.3	Success	5,712+20.00 RP
Mar 23, 2026 10:05	Dominique Garmier	CPPclang++18.1.3	Success	8,975

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