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 listJun 6, 2021 23:02

Yuriy LyfenkoScore: 136,376Success

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#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jun 6, 2021 23:03	131,637	1,170,899,934	644,020,000	1,000,000	2,506,752
2	Jun 6, 2021 23:02	131,935	1,172,453,751	644,482,000	1,998,000	2,506,752
3	Jun 6, 2021 23:02	132,401	1,175,138,208	647,768,000	999,000	2,506,752
4	Jun 6, 2021 23:03	132,626	1,176,863,121	648,868,000	999,000	2,514,944
5	Jun 6, 2021 23:02	133,366	1,179,581,152	651,495,000	1,998,000	2,371,584
6	Jun 6, 2021 23:03	133,409	1,181,487,182	652,707,000	999,000	2,506,752
7	Jun 6, 2021 23:02	133,439	1,182,254,583	652,852,000	999,000	2,514,944
8	Jun 6, 2021 23:02	133,691	1,187,773,874	654,088,000	1,000,000	2,260,992
9	Jun 6, 2021 23:03	133,697	1,177,406,365	654,116,000	1,000,000	2,506,752
10	Jun 6, 2021 23:02	134,299	1,184,404,005	658,065,000	0	2,514,944
11	Jun 6, 2021 23:02	134,521	1,181,103,327	658,152,000	1,000,000	2,506,752
12	Jun 6, 2021 23:02	134,927	1,187,110,769	661,140,000	0	2,510,848
13	Jun 6, 2021 23:03	135,030	1,185,228,196	659,648,000	1,998,000	2,514,944
14	Jun 6, 2021 23:03	135,475	1,193,196,474	660,827,000	2,999,000	2,506,752
15	Jun 6, 2021 23:02	135,535	1,187,280,405	663,123,000	1,000,000	2,367,488
16	Jun 6, 2021 23:02	136,057	1,192,263,903	665,678,000	999,000	2,506,752
17	Jun 6, 2021 23:02	136,287	1,198,510,487	666,808,000	999,000	2,510,848
18	Jun 6, 2021 23:03	136,292	1,194,673,449	666,834,000	999,000	2,510,848
19	Jun 6, 2021 23:03	136,376	1,198,088,201	667,244,000	998,000	2,494,464
20	Jun 6, 2021 23:02	136,624	1,200,149,121	668,459,000	999,000	2,506,752
21	Jun 6, 2021 23:02	136,682	1,194,754,751	668,742,000	999,000	2,506,752
22	Jun 6, 2021 23:02	138,050	1,206,073,372	675,448,000	999,000	2,514,944
23	Jun 6, 2021 23:02	138,460	1,202,877,363	676,454,000	1,998,000	2,498,560
24	Jun 6, 2021 23:03	138,965	1,211,793,774	678,928,000	1,999,000	2,510,848
25	Jun 6, 2021 23:02	139,355	1,210,251,740	680,842,000	1,999,000	2,506,752
26	Jun 6, 2021 23:02	140,766	1,220,563,049	687,753,000	1,999,000	2,506,752
27	Jun 6, 2021 23:02	145,242	1,238,680,071	710,687,000	999,000	2,510,848
28	Jun 6, 2021 23:03	149,227	1,298,955,045	731,213,570	0	2,224,128
29	Jun 6, 2021 23:02	149,351	1,297,509,924	731,818,185	0	2,228,224
30	Jun 6, 2021 23:02	149,606	1,294,082,840	733,069,033	0	2,224,128
31	Jun 6, 2021 23:02	149,997	1,301,957,848	734,985,713	0	2,224,128
32	Jun 6, 2021 23:03	150,189	1,310,266,755	735,926,950	0	2,228,224
33	Jun 6, 2021 23:02	150,418	1,296,461,396	737,048,524	0	2,224,128
34	Jun 6, 2021 23:02	151,499	1,299,900,803	742,342,932	0	2,224,128
35	Jun 6, 2021 23:02	151,689	1,319,826,710	743,276,764	0	2,220,032
36	Jun 6, 2021 23:03	154,169	1,316,818,933	755,428,586	0	2,220,032

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