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 listDec 9, 2021 07:38

Yuriy LyfenkoScore: 100,173Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Dec 9, 2021 07:38	99,668	553,357,147	488,371,337	0	2,203,648
2	Dec 9, 2021 07:38	99,737	553,702,434	488,712,058	0	2,207,744
3	Dec 9, 2021 07:40	99,760	541,439,963	488,826,251	0	2,322,432
4	Dec 9, 2021 07:40	99,820	556,241,818	489,117,544	0	2,195,456
5	Dec 9, 2021 07:52	99,840	552,547,293	489,215,321	0	2,199,552
6	Dec 9, 2021 07:40	99,857	549,925,167	489,299,060	0	2,195,456
7	Dec 9, 2021 07:40	100,128	519,232,123	489,628,000	999,000	2,527,232
8	Dec 9, 2021 07:40	100,138	519,104,685	488,680,000	1,998,000	2,265,088
9	Dec 9, 2021 07:52	100,145	523,986,629	488,712,000	1,998,000	2,527,232
10	Dec 9, 2021 07:38	100,146	517,041,310	488,716,000	1,998,000	2,265,088
11	Dec 9, 2021 07:40	100,147	516,145,543	488,721,000	1,998,000	2,265,088
12	Dec 9, 2021 07:38	100,150	515,514,276	489,738,000	999,000	2,342,912
13	Dec 9, 2021 07:52	100,151	516,372,497	488,741,000	1,998,000	2,342,912
14	Dec 9, 2021 07:38	100,151	520,718,481	488,742,000	1,998,000	2,527,232
15	Dec 9, 2021 07:52	100,153	518,399,986	489,751,000	999,000	2,342,912
16	Dec 9, 2021 07:38	100,167	517,297,565	488,817,000	1,999,000	2,338,816
17	Dec 9, 2021 07:52	100,167	517,051,830	489,818,000	999,000	2,265,088
18	Dec 9, 2021 07:52	100,170	514,822,956	489,835,000	999,000	2,265,088
19	Dec 9, 2021 07:40	100,173	520,240,660	489,849,000	999,000	2,265,088
20	Dec 9, 2021 07:52	100,183	514,371,305	488,900,000	1,999,000	2,342,912
21	Dec 9, 2021 07:40	100,199	514,775,146	489,975,000	999,000	2,265,088
22	Dec 9, 2021 07:38	100,203	518,108,666	488,995,000	1,999,000	2,334,720
23	Dec 9, 2021 07:52	100,204	513,346,560	491,002,000	0	2,338,816
24	Dec 9, 2021 07:40	100,206	519,294,053	490,010,000	1,000,000	2,265,088
25	Dec 9, 2021 07:52	100,220	566,957,328	491,078,388	0	2,203,648
26	Dec 9, 2021 07:38	100,222	520,005,447	490,086,000	1,000,000	2,347,008
27	Dec 9, 2021 07:40	100,226	514,281,700	491,106,000	0	2,527,232
28	Dec 9, 2021 07:40	100,231	520,926,545	491,132,000	0	2,330,624
29	Dec 9, 2021 07:52	100,236	514,155,984	490,158,000	1,000,000	2,527,232
30	Dec 9, 2021 07:40	100,246	512,433,818	490,203,000	1,000,000	2,527,232
31	Dec 9, 2021 07:38	100,252	519,700,851	490,235,000	1,000,000	2,342,912
32	Dec 9, 2021 07:38	100,262	560,016,297	491,282,342	0	2,195,456
33	Dec 9, 2021 07:38	100,265	521,939,844	490,299,000	1,000,000	2,342,912
34	Dec 9, 2021 07:38	100,283	524,746,964	490,389,000	1,000,000	2,265,088
35	Dec 9, 2021 07:52	100,324	522,608,605	489,590,000	1,998,000	2,334,720
36	Dec 9, 2021 07:52	100,327	572,479,608	491,602,960	0	2,203,648

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