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.

Back to listMar 20, 2026 08:43

Dominique GarmierScore: 6,681Success

Source Code

Source code access is restricted. Log in to request access.

Challenge History

No challenges yet.

Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Mar 20, 2026 09:37	6,657	56,978,069	28,957,000	998,000	2,260,992
2	Mar 20, 2026 09:13	6,658	55,751,552	28,963,000	998,000	2,260,992
3	Mar 20, 2026 10:22	6,662	58,174,674	28,980,000	999,000	2,265,088
4	Mar 20, 2026 10:14	6,664	54,292,684	28,990,000	999,000	2,277,376
5	Mar 20, 2026 09:09	6,665	61,775,077	27,992,000	1,999,000	2,265,088
6	Mar 20, 2026 09:37	6,665	53,387,235	28,992,000	999,000	2,265,088
7	Mar 20, 2026 08:24	6,666	60,090,455	28,998,000	999,000	2,269,184
8	Mar 20, 2026 09:04	6,666	56,676,183	28,997,000	999,000	2,269,184
9	Mar 20, 2026 09:13	6,666	59,815,256	27,997,000	1,999,000	2,289,664
10	Mar 20, 2026 09:13	6,666	57,668,333	27,998,000	1,999,000	2,260,992
11	Mar 20, 2026 09:14	6,666	52,210,955	27,998,000	1,999,000	2,289,664
12	Mar 20, 2026 08:54	6,667	61,983,247	28,001,000	2,000,000	2,273,280
13	Mar 20, 2026 09:04	6,667	55,055,825	29,000,000	1,000,000	2,371,584
14	Mar 20, 2026 10:14	6,667	57,682,290	28,003,000	2,000,000	2,260,992
15	Mar 20, 2026 08:17	6,668	55,713,777	28,008,000	2,000,000	2,260,992
16	Mar 20, 2026 09:13	6,668	55,766,265	28,005,000	2,000,000	2,289,664
17	Mar 20, 2026 09:13	6,668	60,442,576	28,008,000	2,000,000	2,289,664
18	Mar 20, 2026 08:54	6,669	54,273,628	28,009,000	2,000,000	2,289,664
19	Mar 20, 2026 09:37	6,669	58,785,342	28,010,000	2,000,000	2,289,664
20	Mar 20, 2026 10:22	6,669	57,997,736	28,009,000	2,000,000	2,281,472
21	Mar 20, 2026 10:39	6,669	61,038,634	29,010,000	1,000,000	2,289,664
22	Mar 20, 2026 08:17	6,670	55,275,863	28,014,000	2,001,000	2,289,664
23	Mar 20, 2026 09:14	6,670	59,342,263	29,014,000	1,000,000	2,289,664
24	Mar 20, 2026 09:42	6,670	57,588,717	30,014,000	0	2,289,664
25	Mar 20, 2026 10:09	6,670	59,186,716	30,016,000	0	2,289,664
26	Mar 20, 2026 10:22	6,670	55,796,433	28,015,000	2,001,000	2,289,664
27	Mar 20, 2026 08:54	6,671	59,417,916	29,018,000	1,000,000	2,289,664
28	Mar 20, 2026 08:23	6,672	58,747,317	29,025,000	1,000,000	2,269,184
29	Mar 20, 2026 08:28	6,672	60,386,893	28,023,000	2,001,000	2,289,664
30	Mar 20, 2026 08:28	6,672	59,170,731	28,024,000	2,001,000	2,269,184
31	Mar 20, 2026 09:37	6,672	60,262,167	29,024,000	1,000,000	2,519,040
32	Mar 20, 2026 09:42	6,672	52,358,129	28,024,000	2,001,000	2,289,664
33	Mar 20, 2026 09:53	6,672	61,704,117	28,023,000	2,001,000	2,289,664
34	Mar 20, 2026 10:14	6,673	59,865,987	29,029,000	1,001,000	2,289,664
35	Mar 20, 2026 08:17	6,674	58,111,610	29,031,000	1,001,000	2,269,184
36	Mar 20, 2026 08:54	6,674	55,999,653	28,033,000	2,002,000	2,289,664
37	Mar 20, 2026 09:19	6,674	53,333,032	28,033,000	2,002,000	2,289,664
38	Mar 20, 2026 09:26	6,674	60,129,731	28,030,000	2,002,000	2,289,664
39	Mar 20, 2026 10:22	6,674	63,068,168	28,029,000	2,002,000	2,289,664
40	Mar 20, 2026 08:28	6,675	56,071,393	28,034,000	2,002,000	2,265,088
41	Mar 20, 2026 09:00	6,675	55,899,480	28,037,000	2,002,000	2,289,664
42	Mar 20, 2026 10:09	6,675	55,761,960	29,036,000	1,001,000	2,289,664
43	Mar 20, 2026 10:22	6,675	56,139,629	29,037,000	1,001,000	2,379,776
44	Mar 20, 2026 08:17	6,676	56,548,291	29,043,000	1,001,000	2,289,664
45	Mar 20, 2026 08:24	6,676	57,941,981	29,041,000	1,001,000	2,289,664
46	Mar 20, 2026 08:43	6,676	57,286,404	28,041,000	2,002,000	2,289,664
47	Mar 20, 2026 08:49	6,676	53,447,478	28,041,000	2,002,000	2,379,776
48	Mar 20, 2026 09:19	6,676	54,326,574	28,039,000	2,002,000	2,269,184
49	Mar 20, 2026 10:34	6,676	61,688,010	28,041,000	2,002,000	2,260,992
50	Mar 20, 2026 10:39	6,676	62,061,636	28,041,000	2,002,000	2,289,664
51	Mar 20, 2026 08:28	6,677	58,566,171	28,045,000	2,003,000	2,289,664
52	Mar 20, 2026 08:49	6,677	57,775,500	28,042,000	2,003,000	2,289,664
53	Mar 20, 2026 10:22	6,677	59,640,034	28,042,000	2,003,000	2,289,664
54	Mar 20, 2026 08:17	6,678	58,182,533	30,053,000	0	2,289,664
55	Mar 20, 2026 08:28	6,678	57,471,897	28,047,000	2,003,000	2,273,280
56	Mar 20, 2026 09:19	6,678	58,467,563	28,050,000	2,003,000	2,260,992
57	Mar 20, 2026 10:25	6,678	57,538,921	28,048,000	2,003,000	2,265,088
58	Mar 20, 2026 10:39	6,678	53,765,521	29,051,000	1,001,000	2,265,088
59	Mar 20, 2026 17:17	6,678	54,891,937	29,050,000	1,001,000	2,367,488
60	Mar 20, 2026 08:34	6,679	61,754,326	29,056,000	1,001,000	2,289,664
61	Mar 20, 2026 09:04	6,679	61,463,300	28,051,000	2,003,000	2,289,664
62	Mar 20, 2026 10:14	6,679	55,347,659	29,053,000	1,001,000	2,289,664
63	Mar 20, 2026 10:14	6,679	64,083,859	28,053,000	2,003,000	2,289,664
64	Mar 20, 2026 10:18	6,679	58,476,470	29,056,000	1,001,000	2,289,664
65	Mar 20, 2026 08:17	6,680	55,844,370	29,059,000	1,002,000	2,289,664
66	Mar 20, 2026 09:53	6,680	57,352,981	28,057,000	2,004,000	2,265,088
67	Mar 20, 2026 10:34	6,680	57,901,822	29,057,000	1,001,000	2,289,664
68	Mar 20, 2026 09:04	6,681	56,326,181	28,059,000	2,004,000	2,260,992
69	Mar 20, 2026 09:04	6,681	54,591,016	28,059,000	2,004,000	2,269,184
70	Mar 20, 2026 09:17	6,681	55,750,961	28,059,000	2,004,000	2,269,184
71	Mar 20, 2026 09:37	6,681	56,611,834	28,060,000	2,004,000	2,289,664
72	Mar 20, 2026 08:23	6,682	58,145,931	28,066,000	2,004,000	2,277,376
73	Mar 20, 2026 09:04	6,682	59,380,548	29,067,000	1,002,000	2,289,664
74	Mar 20, 2026 09:37	6,682	60,711,731	28,063,000	2,004,000	2,519,040
75	Mar 20, 2026 09:37	6,682	55,011,847	29,069,000	1,002,000	2,379,776
76	Mar 20, 2026 10:22	6,682	57,767,599	28,067,000	2,004,000	2,265,088
77	Mar 20, 2026 10:34	6,682	61,504,989	28,064,000	2,004,000	2,273,280
78	Mar 20, 2026 08:28	6,683	55,373,380	29,072,000	1,002,000	2,371,584
79	Mar 20, 2026 08:28	6,684	55,864,826	28,073,000	2,005,000	2,289,664
80	Mar 20, 2026 09:13	6,684	56,023,865	28,072,000	2,005,000	2,289,664
81	Mar 20, 2026 10:25	6,684	58,550,732	30,080,000	0	2,289,664
82	Mar 20, 2026 17:17	6,684	55,531,520	28,074,000	2,005,000	2,289,664
83	Mar 20, 2026 08:23	6,685	56,443,152	29,082,000	1,002,000	2,260,992
84	Mar 20, 2026 08:25	6,685	55,224,095	28,079,000	2,005,000	2,289,664
85	Mar 20, 2026 08:54	6,685	57,582,998	28,078,000	2,005,000	2,289,664
86	Mar 20, 2026 10:14	6,685	56,380,756	29,082,000	1,002,000	2,289,664
87	Mar 20, 2026 09:13	6,687	63,281,085	29,090,000	1,003,000	2,289,664
88	Mar 20, 2026 10:28	6,687	54,227,346	28,084,000	2,006,000	2,289,664
89	Mar 20, 2026 08:17	6,688	56,817,478	29,093,000	1,003,000	2,277,376
90	Mar 20, 2026 08:54	6,688	60,844,421	28,091,000	2,006,000	2,519,040
91	Mar 20, 2026 10:18	6,688	57,033,544	28,091,000	2,006,000	2,289,664
92	Mar 20, 2026 09:04	6,689	59,548,542	28,095,000	2,006,000	2,289,664
93	Mar 20, 2026 08:25	6,691	63,686,175	28,101,000	2,007,000	2,260,992
94	Mar 20, 2026 08:34	6,691	55,697,033	28,101,000	2,007,000	2,265,088
95	Mar 20, 2026 09:13	6,691	58,172,715	29,108,000	1,003,000	2,289,664
96	Mar 20, 2026 09:53	6,691	57,611,373	29,106,000	1,003,000	2,269,184
97	Mar 20, 2026 09:13	6,692	63,466,698	28,107,000	2,007,000	2,289,664
98	Mar 20, 2026 10:14	6,692	60,798,231	29,109,000	1,003,000	2,519,040
99	Mar 20, 2026 17:17	6,692	56,810,846	28,105,000	2,007,000	2,289,664
100	Mar 20, 2026 08:17	6,693	56,589,624	28,112,000	2,008,000	2,289,664
101	Mar 20, 2026 08:28	6,694	57,434,880	29,118,000	1,004,000	2,269,184
102	Mar 20, 2026 10:28	6,694	57,559,698	28,116,000	2,008,000	2,260,992
103	Mar 20, 2026 08:34	6,695	57,340,153	28,120,000	2,008,000	2,265,088
104	Mar 20, 2026 08:54	6,695	56,233,954	28,119,000	2,008,000	2,260,992
105	Mar 20, 2026 08:54	6,696	52,805,588	28,123,000	2,008,000	2,273,280
106	Mar 20, 2026 09:00	6,696	57,943,004	29,126,000	1,004,000	2,289,664
107	Mar 20, 2026 09:04	6,696	59,014,032	28,123,000	2,008,000	2,289,664
108	Mar 20, 2026 09:26	6,697	55,109,305	28,128,000	2,009,000	2,289,664
109	Mar 20, 2026 10:14	6,697	55,793,015	29,131,000	1,004,000	2,289,664
110	Mar 20, 2026 08:54	6,698	61,953,983	28,133,000	2,009,000	2,519,040
111	Mar 20, 2026 09:00	6,698	56,228,490	28,133,000	2,009,000	2,289,664
112	Mar 20, 2026 09:04	6,698	54,420,526	28,132,000	2,009,000	2,273,280
113	Mar 20, 2026 10:18	6,698	60,069,974	28,130,000	2,009,000	2,269,184
114	Mar 20, 2026 10:22	6,698	57,653,522	28,134,000	2,009,000	2,289,664
115	Mar 20, 2026 08:17	6,699	55,719,070	29,141,000	1,004,000	2,265,088
116	Mar 20, 2026 08:49	6,700	60,844,914	28,141,000	2,010,000	2,289,664
117	Mar 20, 2026 10:14	6,700	60,740,384	28,140,000	2,010,000	2,289,664
118	Mar 20, 2026 10:22	6,700	68,334,028	28,140,000	2,010,000	2,289,664
119	Mar 20, 2026 10:25	6,700	56,656,765	28,141,000	2,010,000	2,269,184
120	Mar 20, 2026 10:28	6,700	57,553,087	28,140,000	2,010,000	2,289,664
121	Mar 20, 2026 09:09	6,701	60,013,601	28,146,000	2,010,000	2,289,664
122	Mar 20, 2026 08:24	6,702	58,309,122	28,150,000	2,010,000	2,519,040
123	Mar 20, 2026 08:43	6,702	54,518,044	29,155,000	1,005,000	2,289,664
124	Mar 20, 2026 09:17	6,702	58,099,833	29,155,000	1,005,000	2,289,664
125	Mar 20, 2026 08:25	6,703	56,520,653	28,153,000	2,010,000	2,289,664
126	Mar 20, 2026 09:26	6,703	56,009,050	29,157,000	1,005,000	2,265,088
127	Mar 20, 2026 10:09	6,705	57,936,471	28,163,000	2,011,000	2,289,664
128	Mar 20, 2026 09:09	6,707	62,316,678	28,168,000	2,012,000	2,289,664
129	Mar 20, 2026 09:37	6,708	55,446,841	29,181,000	1,006,000	2,289,664
130	Mar 20, 2026 09:42	6,709	56,893,940	29,185,000	1,006,000	2,289,664
131	Mar 20, 2026 08:28	6,710	62,394,125	29,191,000	1,006,000	2,519,040
132	Mar 20, 2026 09:17	6,710	56,291,698	28,182,000	2,013,000	2,289,664
133	Mar 20, 2026 08:43	6,711	61,560,741	28,188,000	2,013,000	2,289,664
134	Mar 20, 2026 09:37	6,712	56,540,724	29,198,000	1,006,000	2,265,088
135	Mar 20, 2026 09:14	6,755	62,732,237	28,371,000	2,026,000	2,260,992

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