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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Robert BurkeScore: 55,378Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Oct 4, 2022 15:37	52,880	331,429,820	259,113,560	0	2,187,264
2	Oct 4, 2022 15:37	52,891	324,362,194	259,166,740	0	2,183,168
3	Oct 4, 2022 15:39	52,942	327,295,562	259,415,068	0	2,191,360
4	Oct 4, 2022 15:52	52,948	330,115,884	259,444,449	0	2,174,976
5	Oct 4, 2022 15:52	52,966	326,467,001	259,531,793	0	2,301,952
6	Oct 4, 2022 15:45	52,970	340,693,609	259,554,998	0	2,179,072
7	Oct 4, 2022 15:52	52,983	349,962,967	259,616,933	0	2,187,264
8	Oct 4, 2022 15:39	53,055	336,170,248	259,971,249	0	2,179,072
9	Oct 4, 2022 15:45	53,081	329,501,952	260,097,818	0	2,183,168
10	Oct 4, 2022 15:39	53,099	323,080,808	260,186,656	0	2,179,072
11	Oct 4, 2022 15:37	53,169	318,601,122	260,528,751	0	2,301,952
12	Oct 4, 2022 15:45	53,432	322,296,628	261,816,591	0	2,170,880
13	Oct 4, 2022 15:45	55,346	292,359,456	270,195,000	1,000,000	2,281,472
14	Oct 4, 2022 15:39	55,353	292,694,370	270,229,000	1,000,000	2,441,216
15	Oct 4, 2022 15:39	55,357	295,200,971	270,247,000	1,000,000	2,445,312
16	Oct 4, 2022 15:37	55,364	298,085,027	270,285,000	1,001,000	2,281,472
17	Oct 4, 2022 15:37	55,364	293,342,567	269,291,000	1,994,000	2,281,472
18	Oct 4, 2022 15:52	55,365	297,627,237	270,288,000	1,001,000	2,437,120
19	Oct 4, 2022 15:39	55,367	295,257,120	270,296,000	1,001,000	2,281,472
20	Oct 4, 2022 15:45	55,368	297,586,531	270,304,000	1,001,000	2,277,376
21	Oct 4, 2022 15:37	55,369	292,766,062	270,308,000	1,001,000	2,281,472
22	Oct 4, 2022 15:39	55,370	292,875,976	270,310,000	1,001,000	2,535,424
23	Oct 4, 2022 15:45	55,370	292,523,512	270,313,000	1,001,000	2,445,312
24	Oct 4, 2022 15:52	55,371	292,598,343	270,315,000	1,001,000	2,281,472
25	Oct 4, 2022 15:37	55,378	293,053,539	270,351,000	1,001,000	2,281,472
26	Oct 4, 2022 15:45	55,378	292,594,658	270,352,000	1,001,000	2,281,472
27	Oct 4, 2022 15:52	55,378	294,876,969	270,353,000	1,001,000	2,437,120
28	Oct 4, 2022 15:39	55,381	297,391,482	270,365,000	1,001,000	2,281,472
29	Oct 4, 2022 15:45	55,382	290,914,042	270,370,000	1,001,000	2,281,472
30	Oct 4, 2022 15:52	55,387	296,003,627	270,393,000	1,001,000	2,445,312
31	Oct 4, 2022 15:45	55,388	292,184,790	270,398,000	1,001,000	2,281,472
32	Oct 4, 2022 15:37	55,391	300,680,075	270,414,000	1,001,000	2,445,312
33	Oct 4, 2022 15:45	55,392	298,567,969	270,419,000	1,001,000	2,281,472
34	Oct 4, 2022 15:52	55,394	295,170,391	270,428,000	1,001,000	2,535,424
35	Oct 4, 2022 15:45	55,397	300,005,778	269,448,000	1,995,000	2,281,472
36	Oct 4, 2022 15:39	55,397	295,594,873	270,446,000	997,000	2,445,312
37	Oct 4, 2022 15:39	55,400	313,629,309	270,459,000	1,001,000	2,441,216
38	Oct 4, 2022 15:37	55,403	299,967,653	270,473,000	1,001,000	2,281,472
39	Oct 4, 2022 15:37	55,418	301,554,185	269,550,000	1,996,000	2,449,408
40	Oct 4, 2022 15:39	55,434	295,325,762	269,629,000	1,997,000	2,441,216
41	Oct 4, 2022 15:45	55,447	297,361,959	269,692,000	1,997,000	2,281,472
42	Oct 4, 2022 15:37	55,453	294,033,049	269,724,000	1,997,000	2,281,472
43	Oct 4, 2022 15:52	55,461	296,586,056	269,760,000	1,998,000	2,281,472
44	Oct 4, 2022 15:39	55,575	295,866,475	270,323,000	1,995,000	2,281,472
45	Oct 4, 2022 15:37	55,905	295,052,799	271,937,000	1,999,000	2,445,312
46	Oct 4, 2022 15:52	55,927	293,898,676	272,044,000	2,000,000	2,281,472
47	Oct 4, 2022 15:52	55,931	301,467,791	272,063,000	2,000,000	2,281,472
48	Oct 4, 2022 15:52	55,949	304,141,732	273,148,000	1,000,000	2,281,472

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