Format integers

Compute a checksum over the decimal representations of binary integers as fast as possible.

Input: 250 000 000 uint32 values in little-endian binary on STDIN (4 bytes each).

Output: A uint64 checksum computed as:

CRC = sum of number_crc(n) for each n

where number_crc(n) converts n to its decimal string and sums ascii(digit) * position over each digit (0-indexed from the left).

Example: For n = 42, the decimal string is "42", so number_crc(42) = ascii('4') * 0 + ascii('2') * 1 = 52 * 0 + 50 * 1 = 50.

Restrictions:60s256Mb 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.

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Bernard TeoScore: 47,267Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Nov 2, 2022 00:31	47,125	254,335,071	228,913,000	1,999,000	2,404,352
2	Nov 2, 2022 00:31	47,135	251,480,671	228,964,000	1,999,000	2,281,472
3	Nov 2, 2022 00:31	47,149	256,180,980	229,029,000	2,000,000	2,404,352
4	Nov 2, 2022 00:31	47,149	257,584,667	229,029,000	2,000,000	2,281,472
5	Nov 2, 2022 00:31	47,151	252,527,114	230,041,000	1,000,000	2,400,256
6	Nov 2, 2022 00:31	47,156	255,725,036	230,063,000	1,000,000	2,400,256
7	Nov 2, 2022 00:31	47,156	254,111,839	229,063,000	2,000,000	2,281,472
8	Nov 2, 2022 00:31	47,166	253,863,719	230,111,000	1,000,000	2,281,472
9	Nov 2, 2022 00:31	47,167	256,845,019	229,118,000	2,001,000	2,281,472
10	Nov 2, 2022 00:29	47,168	253,636,772	230,125,000	1,000,000	2,281,472
11	Nov 2, 2022 00:31	47,179	264,027,826	230,177,000	1,000,000	2,281,472
12	Nov 2, 2022 00:31	47,179	252,264,550	230,178,000	1,000,000	2,281,472
13	Nov 2, 2022 00:31	47,182	257,545,964	231,194,000	0	2,400,256
14	Nov 2, 2022 00:31	47,182	257,663,705	231,194,000	0	2,404,352
15	Nov 2, 2022 00:29	47,184	251,460,926	231,201,000	0	2,281,472
16	Nov 2, 2022 00:29	47,185	260,049,002	231,208,000	0	2,281,472
17	Nov 2, 2022 00:31	47,190	252,846,079	230,232,000	1,001,000	2,396,160
18	Nov 2, 2022 00:31	47,192	258,602,240	230,241,000	1,001,000	2,281,472
19	Nov 2, 2022 00:29	47,192	252,705,827	230,240,000	1,001,000	2,281,472
20	Nov 2, 2022 00:29	47,206	255,025,670	230,310,000	1,001,000	2,281,472
21	Nov 2, 2022 00:29	47,227	260,262,083	230,413,000	1,001,000	2,396,160
22	Nov 2, 2022 00:31	47,235	259,147,717	231,451,000	0	2,396,160
23	Nov 2, 2022 00:31	47,244	260,711,779	230,500,000	997,000	2,396,160
24	Nov 2, 2022 00:31	47,264	257,833,098	231,594,000	0	2,519,040
25	Nov 2, 2022 00:31	47,267	260,911,678	230,611,000	998,000	2,281,472
26	Nov 2, 2022 00:31	47,267	264,106,179	230,610,000	998,000	2,400,256
27	Nov 2, 2022 00:31	47,268	255,976,025	229,617,000	1,996,000	2,281,472
28	Nov 2, 2022 00:31	47,269	257,040,847	230,618,000	998,000	2,396,160
29	Nov 2, 2022 00:29	47,269	256,387,735	229,622,000	1,996,000	2,281,472
30	Nov 2, 2022 00:29	47,293	256,520,797	229,737,000	1,997,000	2,281,472
31	Nov 2, 2022 00:31	47,299	259,402,752	230,767,000	998,000	2,281,472
32	Nov 2, 2022 00:31	47,301	256,245,096	229,777,000	1,998,000	2,281,472
33	Nov 2, 2022 00:31	47,317	254,760,986	229,857,000	1,998,000	2,281,472
34	Nov 2, 2022 00:29	47,327	256,327,210	231,901,000	0	2,281,472
35	Nov 2, 2022 00:31	47,369	260,377,599	231,109,000	1,000,000	2,396,160
36	Nov 2, 2022 00:29	47,949	297,779,143	234,949,445	0	2,269,184
37	Nov 2, 2022 00:29	47,991	304,690,747	235,156,701	0	2,256,896
38	Nov 2, 2022 00:31	48,001	305,541,058	235,202,740	0	2,269,184
39	Nov 2, 2022 00:31	48,010	309,996,124	235,247,528	0	2,265,088
40	Nov 2, 2022 00:31	48,028	306,157,624	235,339,530	0	2,269,184
41	Nov 2, 2022 00:31	48,056	307,768,579	235,472,073	0	2,256,896
42	Nov 2, 2022 00:31	48,060	303,245,935	235,496,046	0	2,265,088
43	Nov 2, 2022 00:31	48,099	306,369,958	235,685,696	0	2,260,992
44	Nov 2, 2022 00:31	48,122	304,531,238	235,798,612	0	2,265,088
45	Nov 2, 2022 00:29	48,176	314,665,863	236,060,539	0	2,269,184
46	Nov 2, 2022 00:31	48,199	311,964,086	236,177,183	0	2,256,896
47	Nov 2, 2022 00:31	49,590	265,941,593	240,993,000	1,999,000	2,273,280
48	Nov 2, 2022 00:31	50,278	303,381,595	246,360,348	0	2,269,184

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