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 12:44

Yuriy LyfenkoScore: 101,999Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jul 9, 2021 12:48	101,900	1,033,021,299	497,312,000	1,997,000	2,265,088
2	Jul 9, 2021 12:44	101,903	1,033,703,919	498,328,000	998,000	2,478,080
3	Jul 9, 2021 12:45	101,906	1,025,989,424	497,340,000	2,001,000	2,260,992
4	Jul 9, 2021 12:44	101,913	1,028,644,277	499,374,000	0	2,482,176
5	Jul 9, 2021 12:44	101,918	1,029,423,823	498,396,000	1,000,000	2,482,176
6	Jul 9, 2021 12:45	101,938	1,025,473,536	498,497,000	998,000	2,260,992
7	Jul 9, 2021 12:48	101,940	1,026,112,918	498,506,000	999,000	2,478,080
8	Jul 9, 2021 12:45	101,945	1,027,913,183	498,533,000	999,000	2,482,176
9	Jul 9, 2021 12:45	101,945	1,025,943,221	497,533,000	1,998,000	2,482,176
10	Jul 9, 2021 12:48	101,946	1,025,007,835	499,535,000	0	2,482,176
11	Jul 9, 2021 12:45	101,947	1,028,226,101	499,542,000	0	2,482,176
12	Jul 9, 2021 12:45	101,952	1,027,454,811	497,565,000	1,998,000	2,478,080
13	Jul 9, 2021 12:48	101,956	1,027,265,274	498,585,000	999,000	2,478,080
14	Jul 9, 2021 12:44	101,959	1,030,740,205	498,598,000	999,000	2,482,176
15	Jul 9, 2021 12:48	101,972	1,032,209,901	497,663,000	1,998,000	2,482,176
16	Jul 9, 2021 12:44	101,980	1,032,565,480	498,701,000	999,000	2,482,176
17	Jul 9, 2021 12:44	101,986	1,027,032,281	497,733,000	1,998,000	2,478,080
18	Jul 9, 2021 12:44	101,994	1,026,605,042	498,772,000	999,000	2,478,080
19	Jul 9, 2021 12:45	101,999	1,027,252,319	497,794,000	1,999,000	2,523,136
20	Jul 9, 2021 12:48	102,010	1,027,380,719	498,851,000	999,000	2,338,816
21	Jul 9, 2021 12:45	102,014	1,031,881,545	497,872,000	1,999,000	2,482,176
22	Jul 9, 2021 12:44	102,038	1,031,545,024	497,986,000	1,999,000	2,478,080
23	Jul 9, 2021 12:48	102,054	1,025,442,035	499,066,000	1,000,000	2,523,136
24	Jul 9, 2021 12:48	102,060	1,025,073,179	499,092,000	1,000,000	2,260,992
25	Jul 9, 2021 12:44	102,070	1,021,807,218	500,143,000	0	2,478,080
26	Jul 9, 2021 12:45	102,096	1,027,649,034	500,270,000	0	2,478,080
27	Jul 9, 2021 12:48	102,113	1,031,616,715	499,352,000	1,000,000	2,342,912
28	Jul 9, 2021 12:48	103,068	1,067,767,680	505,034,125	0	2,195,456
29	Jul 9, 2021 12:44	103,124	1,061,106,398	505,306,544	0	2,191,360
30	Jul 9, 2021 12:44	103,159	1,074,142,873	505,479,603	0	2,322,432
31	Jul 9, 2021 12:45	103,161	1,067,365,105	505,489,346	0	2,191,360
32	Jul 9, 2021 12:48	103,168	1,062,849,675	505,525,125	0	2,195,456
33	Jul 9, 2021 12:45	103,179	1,064,896,744	505,577,439	0	2,195,456
34	Jul 9, 2021 12:44	103,195	1,072,915,869	505,655,723	0	2,207,744
35	Jul 9, 2021 12:48	103,213	1,059,357,238	505,743,604	0	2,203,648
36	Jul 9, 2021 12:45	103,240	1,065,032,727	505,876,754	0	2,191,360

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