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.

Back to listAug 31, 2024 22:03

Yuriy Lyfenko

Error

Source Code

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Challenge History

Date	Challenger	Cost	Type	Status
Sep 4, 2026 10:38	Tomislav Tunkovic	10.00	Custom	Solution Broken

Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory	Error
1	Sep 4, 2026 10:39	0	24,702,810	14,848,000	0	2,117,632	expected "3474813095950040 ", got "3474813096020360 "	stderr
2	Sep 4, 2026 10:39	0	22,069,505	11,230,000	1,008,000	2,117,632	expected "-1275469723905081 ", got "-1275469723913061 "	stderr
3	Sep 4, 2026 10:39	0	27,202,075	13,351,000	1,008,000	2,117,632	expected "3473956464463479 ", got "3473956464570879 "	stderr
4	Aug 31, 2024 22:03	9,868	228,479,198	12,996,000	31,409,000	29,704,192
5	Aug 31, 2024 22:04	9,955	235,707,175	10,971,000	33,828,000	29,671,424
6	Aug 31, 2024 22:26	9,966	235,483,578	13,880,000	30,965,000	29,704,192
7	Aug 31, 2024 22:02	9,991	235,890,326	11,928,000	33,033,000	29,663,232
8	Aug 31, 2024 22:03	10,009	237,540,894	16,265,000	28,776,000	29,626,368
9	Aug 31, 2024 22:04	10,012	233,803,480	12,573,000	32,480,000	29,548,544
10	Aug 31, 2024 22:02	10,038	237,930,264	11,744,000	33,427,000	29,544,448
11	Aug 31, 2024 22:04	10,053	236,857,789	12,338,000	32,902,000	29,704,192
12	Aug 31, 2024 22:03	10,142	237,815,662	14,833,000	30,807,000	29,569,024
13	Aug 31, 2024 22:04	10,187	234,192,927	14,189,000	31,652,000	29,650,944
14	Aug 31, 2024 22:26	10,190	241,813,130	16,894,000	28,962,000	29,663,232
15	Aug 31, 2024 22:02	10,199	238,355,041	11,933,000	33,964,000	29,507,584
16	Aug 31, 2024 22:03	10,241	238,670,535	14,338,000	31,748,000	29,679,616
17	Aug 31, 2024 22:02	10,246	235,019,771	12,575,000	33,533,000	29,659,136
18	Aug 31, 2024 22:03	10,253	232,410,549	12,761,000	33,376,000	29,544,448
19	Aug 31, 2024 22:04	10,260	247,244,288	14,291,000	31,880,000	29,667,328
20	Aug 31, 2024 22:26	10,286	241,970,817	13,225,000	33,063,000	29,704,192
21	Aug 31, 2024 22:26	10,298	233,190,909	14,258,000	32,082,000	29,638,656
22	Aug 31, 2024 22:02	10,304	236,375,821	13,700,000	32,669,000	29,659,136
23	Aug 31, 2024 22:04	10,318	233,475,640	10,130,000	36,299,000	29,704,192
24	Aug 31, 2024 22:26	10,341	236,458,351	12,139,000	34,396,000	29,708,288
25	Aug 31, 2024 22:02	10,354	238,258,526	16,308,000	30,286,000	29,577,216
26	Aug 31, 2024 22:26	10,363	235,946,456	14,098,000	32,534,000	29,642,752
27	Aug 31, 2024 22:26	10,371	231,660,444	13,901,000	32,768,000	29,708,288
28	Aug 31, 2024 22:04	10,387	240,816,971	12,464,000	34,278,000	29,708,288
29	Aug 31, 2024 22:02	10,391	234,863,261	11,469,000	35,290,000	29,667,328
30	Aug 31, 2024 22:02	10,408	238,889,851	12,954,000	33,881,000	29,712,384
31	Aug 31, 2024 22:04	10,408	236,538,066	13,071,000	33,767,000	29,708,288
32	Aug 31, 2024 22:26	10,408	236,185,220	14,496,000	32,339,000	29,642,752
33	Aug 31, 2024 22:26	10,423	237,001,061	11,256,000	35,646,000	29,708,288
34	Aug 31, 2024 22:02	10,427	237,790,959	16,844,000	30,079,000	29,663,232
35	Aug 31, 2024 22:03	10,443	242,026,496	13,280,000	33,712,000	29,544,448
36	Aug 31, 2024 22:26	10,469	234,284,697	13,919,000	33,193,000	29,675,520
37	Aug 31, 2024 22:03	10,470	233,128,000	12,291,000	34,826,000	29,577,216
38	Aug 31, 2024 22:02	10,470	241,072,002	13,032,000	34,084,000	29,540,352
39	Aug 31, 2024 22:04	10,474	232,534,399	11,346,000	35,785,000	29,675,520
40	Aug 31, 2024 22:03	10,479	238,732,218	11,095,000	36,059,000	29,544,448
41	Aug 31, 2024 22:03	10,487	239,053,849	12,029,000	35,161,000	29,564,928
42	Aug 31, 2024 22:02	10,519	240,765,955	12,909,000	34,425,000	29,675,520
43	Aug 31, 2024 22:04	10,521	237,253,286	14,203,000	33,141,000	29,659,136
44	Aug 31, 2024 22:03	10,531	235,827,492	12,572,000	34,816,000	29,704,192
45	Aug 31, 2024 22:26	10,549	249,465,603	13,415,000	34,054,000	29,536,256
46	Aug 31, 2024 22:02	10,570	238,672,559	13,156,000	34,410,000	29,597,696
47	Aug 31, 2024 22:26	10,574	236,969,117	13,279,000	34,305,000	29,708,288
48	Aug 31, 2024 22:03	10,592	230,340,172	12,169,000	35,494,000	29,728,768
49	Aug 31, 2024 22:04	10,602	242,386,142	14,679,000	33,028,000	29,708,288
50	Aug 31, 2024 22:03	10,615	236,846,870	14,785,000	32,983,000	29,675,520
51	Aug 31, 2024 22:04	10,634	240,156,389	12,218,000	35,637,000	29,511,680

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