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 listApr 27, 2024 11:05

Hal FScore: 57,527Success

Source Code

Source code access is restricted. Log in to request access.

Challenge History

No challenges yet.

Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Apr 27, 2024 11:06	56,116	334,382,964	274,966,198	0	2,277,376
2	Apr 27, 2024 10:56	56,122	334,571,283	275,000,026	0	2,277,376
3	Apr 27, 2024 11:05	56,126	340,738,299	275,015,453	0	2,273,280
4	Apr 27, 2024 11:06	56,136	334,883,823	275,064,061	0	2,281,472
5	Apr 27, 2024 10:56	56,155	351,446,696	275,161,808	0	2,408,448
6	Apr 27, 2024 11:05	56,270	357,129,157	275,722,049	0	2,277,376
7	Apr 27, 2024 11:05	56,281	345,514,211	275,776,167	0	2,281,472
8	Apr 27, 2024 11:05	56,302	335,108,813	275,879,595	0	2,289,664
9	Apr 27, 2024 11:06	56,477	362,558,412	276,739,133	0	2,273,280
10	Apr 27, 2024 11:05	57,144	307,056,850	277,005,000	3,000,000	2,523,136
11	Apr 27, 2024 10:56	57,154	302,099,719	277,057,000	3,000,000	2,289,664
12	Apr 27, 2024 10:56	57,155	302,487,066	277,061,000	3,000,000	2,289,664
13	Apr 27, 2024 10:56	57,179	305,920,312	279,178,000	1,000,000	2,289,664
14	Apr 27, 2024 11:06	57,192	304,197,226	278,239,000	2,001,000	2,265,088
15	Apr 27, 2024 11:06	57,195	304,381,041	277,255,000	3,002,000	2,523,136
16	Apr 27, 2024 11:05	57,201	304,092,248	277,280,000	3,003,000	2,519,040
17	Apr 27, 2024 10:56	57,205	310,777,042	278,302,000	2,002,000	2,527,232
18	Apr 27, 2024 11:05	57,282	304,879,781	279,683,000	998,000	2,289,664
19	Apr 27, 2024 11:05	57,284	309,041,996	277,696,000	2,996,000	2,383,872
20	Apr 27, 2024 11:05	57,301	306,594,979	278,775,000	1,998,000	2,269,184
21	Apr 27, 2024 11:05	57,322	310,528,182	278,878,000	1,999,000	2,265,088
22	Apr 27, 2024 11:06	57,327	309,985,678	277,903,000	2,998,000	2,289,664
23	Apr 27, 2024 10:56	57,329	307,775,803	278,911,000	1,999,000	2,289,664
24	Apr 27, 2024 11:05	57,359	310,094,474	279,057,000	2,000,000	2,289,664
25	Apr 27, 2024 11:05	57,527	306,477,577	278,886,000	2,998,000	2,527,232
26	Apr 27, 2024 11:05	57,688	309,419,721	279,677,000	2,996,000	2,289,664
27	Apr 27, 2024 11:05	57,710	310,579,011	280,783,000	1,998,000	2,531,328
28	Apr 27, 2024 11:06	57,719	308,940,182	279,825,000	2,998,000	2,289,664
29	Apr 27, 2024 11:05	57,722	305,916,502	280,840,000	1,998,000	2,289,664
30	Apr 27, 2024 11:06	57,724	310,089,171	279,848,000	2,998,000	2,289,664
31	Apr 27, 2024 11:05	57,732	306,727,979	279,891,000	2,998,000	2,289,664
32	Apr 27, 2024 11:05	57,737	306,490,858	279,912,000	2,999,000	2,289,664
33	Apr 27, 2024 11:06	57,747	304,277,864	279,960,000	2,999,000	2,269,184
34	Apr 27, 2024 11:06	57,758	308,357,974	280,015,000	3,000,000	2,273,280
35	Apr 27, 2024 11:06	57,830	309,186,218	282,365,000	1,001,000	2,531,328
36	Apr 27, 2024 11:05	57,860	318,662,647	282,513,000	1,001,000	2,289,664
37	Apr 27, 2024 10:56	57,863	311,134,255	280,533,000	2,995,000	2,379,776
38	Apr 27, 2024 10:56	57,875	313,139,955	281,590,000	1,997,000	2,289,664
39	Apr 27, 2024 10:56	57,900	312,014,218	281,712,000	1,997,000	2,269,184
40	Apr 27, 2024 11:05	57,970	312,479,425	281,051,000	3,000,000	2,289,664
41	Apr 27, 2024 11:05	58,002	309,450,676	281,209,000	3,002,000	2,375,680
42	Apr 27, 2024 10:56	58,023	311,716,357	281,319,000	2,992,000	2,523,136
43	Apr 27, 2024 11:06	58,097	318,979,959	282,679,000	1,997,000	2,289,664
44	Apr 27, 2024 11:05	59,569	322,468,671	288,889,000	2,998,000	2,523,136
45	Apr 27, 2024 11:05	60,616	321,712,781	294,019,000	3,000,000	2,289,664
46	Apr 27, 2024 11:05	63,586	382,127,266	311,570,802	0	2,273,280
47	Apr 27, 2024 11:05	71,293	408,943,589	349,334,363	0	2,273,280
48	Apr 27, 2024 10:56	96,427	534,961,770	472,492,068	0	2,285,568

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