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 listNov 8, 2021 12:11

Ilya AniskovetsScore: 14,602Success

Source Code

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Nov 8, 2021 12:11	7,116	101,738,481	32,020,253	0	2,269,184
2	Nov 8, 2021 12:12	7,120	92,424,344	32,040,430	0	2,273,280
3	Nov 8, 2021 12:12	7,126	97,750,848	32,069,020	0	2,265,088
4	Nov 8, 2021 12:11	7,142	103,658,901	32,139,331	0	2,265,088
5	Nov 8, 2021 12:12	7,148	96,447,873	32,167,726	0	2,265,088
6	Nov 8, 2021 12:12	7,156	93,534,539	32,203,726	0	2,265,088
7	Nov 8, 2021 12:12	7,216	102,551,363	32,470,180	0	2,252,800
8	Nov 8, 2021 12:11	7,225	105,023,665	32,512,908	0	2,260,992
9	Nov 8, 2021 12:12	7,275	123,850,561	32,736,431	0	2,256,896
10	Nov 8, 2021 12:12	14,191	245,089,098	31,929,000	31,929,000	29,556,736
11	Nov 8, 2021 12:11	14,389	251,364,225	32,376,000	32,376,000	29,634,560
12	Nov 8, 2021 12:12	14,442	253,492,006	31,980,000	33,011,000	29,532,160
13	Nov 8, 2021 12:11	14,448	251,354,313	27,237,000	37,781,000	29,618,176
14	Nov 8, 2021 12:12	14,482	258,710,803	28,860,000	36,308,000	29,741,056
15	Nov 8, 2021 12:12	14,534	259,958,611	35,571,000	29,833,000	29,540,352
16	Nov 8, 2021 12:12	14,546	258,910,545	32,208,000	33,247,000	29,478,912
17	Nov 8, 2021 12:12	14,578	254,440,929	30,812,000	34,788,000	29,716,480
18	Nov 8, 2021 12:12	14,595	252,466,328	31,813,000	33,865,000	29,614,080
19	Nov 8, 2021 12:12	14,602	254,871,525	32,855,000	32,855,000	29,745,152
20	Nov 8, 2021 12:12	14,625	250,147,537	34,041,000	31,771,000	29,745,152
21	Nov 8, 2021 12:12	14,642	267,007,372	30,948,000	34,942,000	29,761,536
22	Nov 8, 2021 12:11	14,648	438,266,570	32,957,000	32,957,000	29,745,152
23	Nov 8, 2021 12:12	14,665	252,764,331	35,271,000	30,720,000	29,614,080
24	Nov 8, 2021 12:12	14,665	255,977,304	31,965,000	34,027,000	29,577,216
25	Nov 8, 2021 12:12	14,673	262,048,414	35,292,000	30,738,000	29,679,616
26	Nov 8, 2021 12:12	14,678	258,482,400	31,023,000	35,026,000	29,540,352
27	Nov 8, 2021 12:12	14,679	250,648,789	30,114,000	35,942,000	29,614,080
28	Nov 8, 2021 12:11	14,734	279,542,760	31,142,000	35,160,000	29,540,352
29	Nov 8, 2021 12:12	14,756	249,110,741	33,201,000	33,201,000	29,712,384
30	Nov 8, 2021 12:12	14,884	257,022,084	31,942,000	35,034,000	29,618,176
31	Nov 8, 2021 12:11	14,888	264,035,683	30,195,000	36,800,000	29,573,120
32	Nov 8, 2021 12:12	14,943	259,189,657	30,656,000	36,589,000	29,671,424
33	Nov 8, 2021 12:11	14,964	268,465,074	30,253,000	37,085,000	29,614,080
34	Nov 8, 2021 12:11	14,968	263,478,957	32,657,000	34,698,000	29,519,872
35	Nov 8, 2021 12:11	14,988	256,529,239	27,510,000	39,935,000	29,704,192
36	Nov 8, 2021 12:11	15,627	277,711,269	32,058,000	38,263,000	29,736,960

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