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.

Back to listJul 9, 2021 12:31

Yuriy LyfenkoScore: 103,828Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jul 9, 2021 12:31	103,664	1,039,933,178	505,954,000	1,999,000	2,478,080
2	Jul 9, 2021 12:31	103,677	1,034,329,661	507,019,000	1,000,000	2,482,176
3	Jul 9, 2021 12:24	103,687	1,033,133,069	506,066,000	2,000,000	2,478,080
4	Jul 9, 2021 12:24	103,722	1,037,058,431	508,238,000	0	2,478,080
5	Jul 9, 2021 12:31	103,723	1,036,621,869	507,241,000	1,000,000	2,478,080
6	Jul 9, 2021 12:24	103,728	1,037,136,766	508,266,000	0	2,478,080
7	Jul 9, 2021 12:24	103,752	1,033,784,935	508,387,000	0	2,478,080
8	Jul 9, 2021 12:28	103,761	1,035,259,019	507,430,000	998,000	2,260,992
9	Jul 9, 2021 12:28	103,784	1,034,630,056	507,543,000	999,000	2,482,176
10	Jul 9, 2021 12:28	103,790	1,033,656,717	507,572,000	999,000	2,478,080
11	Jul 9, 2021 12:24	103,796	1,034,924,470	506,600,000	1,998,000	2,478,080
12	Jul 9, 2021 12:24	103,797	1,033,454,637	507,606,000	999,000	2,478,080
13	Jul 9, 2021 12:28	103,802	1,034,978,442	506,634,000	1,998,000	2,523,136
14	Jul 9, 2021 12:24	103,809	1,033,733,924	507,663,000	999,000	2,260,992
15	Jul 9, 2021 12:31	103,811	1,040,188,755	507,676,000	999,000	2,478,080
16	Jul 9, 2021 12:28	103,817	1,035,600,475	507,705,000	999,000	2,260,992
17	Jul 9, 2021 12:28	103,824	1,035,987,693	506,738,000	1,998,000	2,482,176
18	Jul 9, 2021 12:28	103,828	1,035,451,500	507,759,000	999,000	2,482,176
19	Jul 9, 2021 12:24	103,828	1,036,112,308	507,759,000	999,000	2,260,992
20	Jul 9, 2021 12:31	103,831	1,035,537,255	507,773,000	999,000	2,478,080
21	Jul 9, 2021 12:31	103,831	1,042,919,162	506,775,000	1,999,000	2,482,176
22	Jul 9, 2021 12:28	103,839	1,040,533,845	506,811,000	1,999,000	2,473,984
23	Jul 9, 2021 12:31	103,840	1,032,104,403	506,819,000	1,999,000	2,478,080
24	Jul 9, 2021 12:31	103,854	1,034,843,992	507,885,000	999,000	2,478,080
25	Jul 9, 2021 12:28	103,873	1,034,794,821	507,979,000	999,000	2,478,080
26	Jul 9, 2021 12:24	103,878	1,039,273,716	509,004,000	0	2,486,272
27	Jul 9, 2021 12:31	103,891	1,034,220,287	508,066,000	1,000,000	2,478,080
28	Jul 9, 2021 12:31	120,479	1,145,259,918	590,345,042	0	2,191,360
29	Jul 9, 2021 12:24	120,489	1,147,646,811	590,395,917	0	2,203,648
30	Jul 9, 2021 12:28	120,490	1,155,149,168	590,400,477	0	2,191,360
31	Jul 9, 2021 12:24	120,521	1,141,553,748	590,551,599	0	2,195,456
32	Jul 9, 2021 12:28	120,831	1,147,758,077	592,072,681	0	2,195,456
33	Jul 9, 2021 12:28	120,841	1,159,595,264	592,120,106	0	2,211,840
34	Jul 9, 2021 12:31	120,854	1,149,622,574	592,183,431	0	2,211,840
35	Jul 9, 2021 12:31	120,864	1,164,561,237	592,235,330	0	2,195,456
36	Jul 9, 2021 12:24	120,889	1,168,335,174	592,357,023	0	2,195,456

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