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 2, 2021 07:05

Yuriy LyfenkoScore: 116,903Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jul 2, 2021 07:05	114,037	1,080,551,068	556,780,000	1,999,000	2,510,848
2	Jul 2, 2021 07:06	114,052	1,079,050,592	557,857,000	999,000	2,514,944
3	Jul 2, 2021 07:06	114,094	1,083,076,350	559,063,000	0	2,506,752
4	Jul 2, 2021 07:05	114,229	1,085,299,859	558,725,000	999,000	2,510,848
5	Jul 2, 2021 07:05	114,409	1,088,348,119	558,607,000	1,998,000	2,514,944
6	Jul 2, 2021 07:06	114,682	1,093,566,289	559,942,000	1,999,000	2,371,584
7	Jul 2, 2021 07:06	115,168	1,093,492,008	563,322,000	1,000,000	2,510,848
8	Jul 2, 2021 07:06	115,279	1,090,410,995	563,869,000	999,000	2,506,752
9	Jul 2, 2021 07:06	115,400	1,093,423,230	564,460,000	999,000	2,510,848
10	Jul 2, 2021 07:06	115,411	1,092,759,809	563,514,000	1,998,000	2,510,848
11	Jul 2, 2021 07:06	115,640	1,095,949,885	564,638,000	1,998,000	2,510,848
12	Jul 2, 2021 07:05	115,669	1,094,852,057	565,779,000	999,000	2,523,136
13	Jul 2, 2021 07:06	115,870	1,095,084,089	567,765,000	0	2,510,848
14	Jul 2, 2021 07:06	115,893	1,096,934,844	566,878,000	999,000	2,260,992
15	Jul 2, 2021 07:06	115,980	1,095,570,001	568,302,000	0	2,510,848
16	Jul 2, 2021 07:06	116,173	1,094,081,486	569,248,000	0	2,371,584
17	Jul 2, 2021 07:06	116,225	1,101,539,763	568,504,000	999,000	2,367,488
18	Jul 2, 2021 07:05	116,778	1,098,637,032	571,211,000	1,000,000	2,506,752
19	Jul 2, 2021 07:05	116,903	1,103,055,907	571,824,000	999,000	2,506,752
20	Jul 2, 2021 07:06	116,909	1,100,926,596	571,855,000	999,000	2,506,752
21	Jul 2, 2021 07:05	117,042	1,099,397,646	572,507,000	999,000	2,506,752
22	Jul 2, 2021 07:05	117,261	1,099,930,072	572,580,000	1,998,000	2,514,944
23	Jul 2, 2021 07:05	117,904	1,102,114,297	576,729,000	999,000	2,506,752
24	Jul 2, 2021 07:06	119,211	1,104,332,344	583,133,000	1,000,000	2,506,752
25	Jul 2, 2021 07:06	120,055	1,121,220,609	586,273,000	1,997,000	2,506,752
26	Jul 2, 2021 07:06	120,059	1,112,943,559	588,290,000	0	2,506,752
27	Jul 2, 2021 07:06	120,114	1,117,655,770	586,560,000	1,998,000	2,506,752
28	Jul 2, 2021 07:05	129,329	1,183,715,109	633,714,251	0	2,232,320
29	Jul 2, 2021 07:05	129,469	1,203,706,590	634,395,948	0	2,228,224
30	Jul 2, 2021 07:06	130,055	1,221,718,319	637,268,971	0	2,240,512
31	Jul 2, 2021 07:06	130,078	1,197,027,107	637,380,631	0	2,228,224
32	Jul 2, 2021 07:06	130,896	1,208,917,572	641,389,480	0	2,228,224
33	Jul 2, 2021 07:05	131,180	1,196,115,908	642,779,739	0	2,236,416
34	Jul 2, 2021 07:06	132,069	1,213,767,909	647,139,859	0	2,232,320
35	Jul 2, 2021 07:06	132,155	1,222,150,246	647,561,374	0	2,224,128
36	Jul 2, 2021 07:06	132,637	1,218,371,263	649,920,217	0	2,228,224

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