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 listMay 19, 2021 22:54

Yuriy LyfenkoScore: 364,563Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	Memory
1	May 19, 2021 22:54	294,577	1,508,077,774	1,443,427,830	2,179,072
2	May 19, 2021 22:45	294,968	1,501,728,496	1,445,342,153	2,195,456
3	May 19, 2021 21:37	296,210	1,511,814,046	1,451,429,828	2,187,264
4	May 19, 2021 21:37	296,214	1,513,582,471	1,451,450,180	2,195,456
5	May 19, 2021 22:45	296,372	1,519,853,509	1,452,221,363	2,183,168
6	May 20, 2021 03:23	296,380	1,521,787,290	1,452,264,034	2,183,168
7	May 19, 2021 22:45	296,540	1,523,267,739	1,453,048,374	2,195,456
8	May 20, 2021 03:23	296,611	1,511,168,485	1,453,392,416	2,191,360
9	May 19, 2021 22:54	296,772	1,506,762,234	1,454,182,234	2,191,360
10	May 20, 2021 03:23	298,266	1,524,324,738	1,461,501,502	2,195,456
11	May 19, 2021 22:54	300,904	1,535,675,192	1,474,430,864	2,195,456
12	May 19, 2021 21:37	305,399	1,561,901,926	1,496,455,081	2,191,360
13	May 19, 2021 22:54	364,151	1,850,233,126	1,784,342,036	2,183,168
14	May 20, 2021 03:23	364,197	1,860,730,754	1,784,563,830	2,195,456
15	May 19, 2021 21:37	364,257	1,850,108,966	1,784,857,528	2,195,456
16	May 19, 2021 22:54	364,374	1,853,924,818	1,785,432,964	2,191,360
17	May 19, 2021 22:45	364,384	1,854,085,597	1,785,479,891	2,183,168
18	May 20, 2021 03:23	364,502	1,841,722,887	1,786,059,759	2,183,168
19	May 20, 2021 03:23	364,563	1,850,111,671	1,786,360,524	2,187,264
20	May 19, 2021 21:37	364,809	1,847,473,772	1,787,561,832	2,187,264
21	May 19, 2021 22:54	364,870	1,844,523,502	1,787,862,776	2,191,360
22	May 19, 2021 22:45	364,892	1,853,733,581	1,787,971,566	2,191,360
23	May 19, 2021 22:45	364,956	1,849,710,009	1,788,282,176	2,183,168
24	May 19, 2021 21:37	365,002	1,850,587,135	1,788,508,348	2,195,456
25	May 19, 2021 22:45	365,051	1,853,907,742	1,788,749,117	2,179,072
26	May 20, 2021 03:23	365,085	1,838,932,528	1,788,916,518	2,187,264
27	May 19, 2021 21:37	365,289	1,843,430,393	1,789,914,382	2,195,456
28	May 20, 2021 03:23	365,407	1,858,428,033	1,790,493,787	2,187,264
29	May 19, 2021 21:37	365,586	1,854,304,267	1,791,373,330	2,199,552
30	May 19, 2021 22:54	365,627	1,850,694,804	1,791,573,517	2,191,360
31	May 19, 2021 22:54	365,649	1,865,885,760	1,791,680,133	2,183,168
32	May 19, 2021 22:45	365,905	1,846,735,761	1,792,934,238	2,203,648
33	May 19, 2021 21:37	365,926	1,850,939,737	1,793,036,838	2,187,264
34	May 19, 2021 22:54	366,002	1,848,028,646	1,793,409,351	2,195,456
35	May 19, 2021 22:45	366,297	1,853,023,379	1,794,854,471	2,179,072
36	May 20, 2021 03:23	366,780	1,864,779,609	1,797,219,928	2,183,168

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