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 06:55

Yuriy LyfenkoScore: 134,847Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jul 2, 2021 06:57	131,149	1,204,149,908	642,632,070	0	2,228,224
2	Jul 2, 2021 06:56	131,812	1,205,566,065	645,879,100	0	2,232,320
3	Jul 2, 2021 06:56	132,064	1,214,066,486	647,114,083	0	2,224,128
4	Jul 2, 2021 06:57	132,374	1,217,204,985	648,633,490	0	2,236,416
5	Jul 2, 2021 06:55	132,609	1,206,808,114	649,781,799	0	2,228,224
6	Jul 2, 2021 06:55	132,923	1,221,886,375	651,321,202	0	2,232,320
7	Jul 2, 2021 06:55	133,034	1,213,302,670	651,868,441	0	2,228,224
8	Jul 2, 2021 06:57	134,178	1,184,678,676	657,470,000	0	2,514,944
9	Jul 2, 2021 06:56	134,216	1,224,467,938	657,658,314	0	2,240,512
10	Jul 2, 2021 06:56	134,261	1,179,118,602	655,882,000	1,999,000	2,510,848
11	Jul 2, 2021 06:57	134,328	1,190,803,046	658,205,000	0	2,510,848
12	Jul 2, 2021 06:57	134,394	1,183,286,341	656,535,000	1,998,000	2,510,848
13	Jul 2, 2021 06:55	134,406	1,183,374,332	657,589,000	999,000	2,510,848
14	Jul 2, 2021 06:57	134,470	1,213,913,251	658,902,016	0	2,232,320
15	Jul 2, 2021 06:56	134,641	1,184,831,063	657,740,000	1,999,000	2,510,848
16	Jul 2, 2021 06:55	134,670	1,191,748,960	657,883,000	1,999,000	2,514,944
17	Jul 2, 2021 06:56	134,699	1,184,308,765	660,023,000	0	2,510,848
18	Jul 2, 2021 06:57	134,781	1,187,371,341	658,428,000	1,998,000	2,506,752
19	Jul 2, 2021 06:57	134,847	1,190,122,374	658,752,000	1,999,000	2,375,680
20	Jul 2, 2021 06:55	134,894	1,183,875,920	658,980,000	1,999,000	2,510,848
21	Jul 2, 2021 06:56	135,047	1,188,925,032	659,731,000	1,999,000	2,514,944
22	Jul 2, 2021 06:57	135,163	1,191,010,790	661,301,000	1,000,000	2,383,872
23	Jul 2, 2021 06:56	135,273	1,188,104,390	660,838,000	1,999,000	2,514,944
24	Jul 2, 2021 06:55	135,535	1,187,530,591	663,122,000	1,000,000	2,510,848
25	Jul 2, 2021 06:56	135,696	1,185,663,105	663,911,000	999,000	2,510,848
26	Jul 2, 2021 06:57	135,720	1,189,051,896	663,030,000	2,000,000	2,510,848
27	Jul 2, 2021 06:57	136,010	1,197,515,111	664,452,000	1,998,000	2,363,392
28	Jul 2, 2021 06:56	136,201	1,195,606,844	665,388,000	1,998,000	2,506,752
29	Jul 2, 2021 06:56	136,239	1,193,299,466	666,572,000	999,000	2,510,848
30	Jul 2, 2021 06:55	136,579	1,197,984,548	668,240,000	998,000	2,510,848
31	Jul 2, 2021 06:55	136,604	1,199,629,567	667,361,000	1,998,000	2,514,944
32	Jul 2, 2021 06:55	136,638	1,200,316,172	667,529,000	1,998,000	2,510,848
33	Jul 2, 2021 06:55	136,829	1,199,391,378	669,463,000	999,000	2,514,944
34	Jul 2, 2021 06:57	136,831	1,200,763,571	668,473,000	1,998,000	2,510,848
35	Jul 2, 2021 06:56	137,160	1,194,878,037	671,083,000	1,000,000	2,371,584
36	Jul 2, 2021 06:55	138,278	1,204,184,935	675,565,000	1,998,000	2,510,848

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