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.

Date	Author	Language	Status	Score
Jul 21, 2025 00:11	zielaj	CPPclang++18.1.3	Success	29,867
Jul 20, 2025 20:58	zielaj	CPPclang++18.1.3	Success	29,074+0.65 RP
Jul 20, 2025 20:56	zielaj	CPPclang++18.1.3	Success	30,352
Jul 20, 2025 20:34	zielaj	CPPclang++18.1.3	Success	29,129+5.14 RP
Jul 20, 2025 19:26	zielaj	CPPclang++18.1.3	Success	29,972
Jul 20, 2025 19:15	zielaj	CPPclang++18.1.3	Success	29,572+1.34 RP
Jul 20, 2025 19:12	zielaj	CPPclang++18.1.3	Success	30,097
Jul 20, 2025 17:50	zielaj	CPPclang++18.1.3	Error
Jul 20, 2025 17:44	zielaj	CPPclang++18.1.3	Error
Jul 20, 2025 17:41	zielaj	CPPclang++18.1.3	Error
Jul 20, 2025 17:38	zielaj	CPPclang++18.1.3	Error
Jul 20, 2025 17:30	zielaj	CPPclang++18.1.3	Success	29,946
Jul 20, 2025 16:30	zielaj	CPPclang++18.1.3	Success	29,690+0.87 RP
Jul 20, 2025 00:32	zielaj	CPPclang++18.1.3	Success	30,408
Jul 20, 2025 00:30	zielaj	CPPclang++18.1.3	Success	30,394
Jul 19, 2025 18:26	zielaj	CPPclang++18.1.3	Success	29,767+3.09 RP
Jul 19, 2025 18:20	zielaj	CPPclang++18.1.3	Error
Jul 19, 2025 18:17	zielaj	CPPclang++18.1.3	Success	30,043+12.14 RP
Jul 19, 2025 18:14	zielaj	CPPclang++18.1.3	Success	31,180+15.26 RP
Jul 19, 2025 18:08	zielaj	CPPclang++18.1.3	Error
Jul 19, 2025 17:54	zielaj	CPPclang++18.1.3	Error
Jul 19, 2025 17:52	zielaj	CPPclang++18.1.3	Success	32,738+0.05 RP
Jul 19, 2025 02:29	zielaj	CPPclang++18.1.3	Success	32,950
Jul 19, 2025 02:29	zielaj	CPPclang++18.1.3	Success	32,874
Jul 19, 2025 02:26	zielaj	CPPclang++18.1.3	Error
Jul 19, 2025 02:15	zielaj	CPPclang++18.1.3	Success	32,838
Jul 19, 2025 02:14	zielaj	CPPclang++18.1.3	Success	33,433
Jul 19, 2025 02:12	zielaj	CPPclang++18.1.3	Success	33,836
Jul 19, 2025 02:12	zielaj	CPPclang++18.1.3	Success	32,743+0.04 RP
Jul 19, 2025 02:10	zielaj	CPPclang++18.1.3	Success	34,654
Jul 19, 2025 01:59	zielaj	CPPclang++18.1.3	Error
Jul 19, 2025 01:54	zielaj	CPPclang++18.1.3	Success	32,747+2.93 RP
Jul 19, 2025 01:35	zielaj	CPPclang++18.1.3	Error
Jul 19, 2025 01:28	zielaj	CPPclang++18.1.3	Success	34,117
Jul 19, 2025 01:27	zielaj	CPPclang++18.1.3	Success	35,012
Jul 19, 2025 01:18	zielaj	CPPclang++18.1.3	Error
Jul 19, 2025 01:17	zielaj	CPPclang++18.1.3	Error
Jul 19, 2025 01:16	zielaj	CPPclang++18.1.3	Error
Jul 19, 2025 01:05	zielaj	CPPclang++18.1.3	Error
Jul 19, 2025 01:00	zielaj	CPPclang++18.1.3	Success	34,081
Jul 19, 2025 00:49	zielaj	CPPclang++18.1.3	Error
Jul 19, 2025 00:46	zielaj	CPPclang++18.1.3	Error
Jul 19, 2025 00:44	zielaj	CPPclang++18.1.3	Error
Jul 19, 2025 00:43	zielaj	CPPclang++18.1.3	Error
Jul 19, 2025 00:41	zielaj	CPPclang++18.1.3	Error
Jul 19, 2025 00:40	zielaj	CPPclang++18.1.3	Error
Jul 19, 2025 00:30	zielaj	CPPclang++18.1.3	Error
Jul 19, 2025 00:17	zielaj	CPPclang++18.1.3	Error
Jul 18, 2025 20:09	zielaj	CPPclang++18.1.3	Success	35,250
Jul 18, 2025 20:05	zielaj	CPPclang++18.1.3	Error
Jul 18, 2025 20:03	zielaj	CPPclang++18.1.3	Success	33,076
Jul 18, 2025 20:02	zielaj	CPPclang++18.1.3	Success	36,664
Jul 18, 2025 20:01	zielaj	CPPclang++18.1.3	Success	35,274
Jul 18, 2025 19:55	zielaj	CPPclang++18.1.3	Success	34,823
Jul 18, 2025 19:53	zielaj	CPPclang++18.1.3	Success	35,678
Jul 18, 2025 19:51	zielaj	CPPclang++18.1.3	Success	35,277
Jul 18, 2025 19:46	zielaj	CPPclang++18.1.3	Error
Jul 18, 2025 19:43	zielaj	CPPclang++18.1.3	Error
Jul 18, 2025 19:41	zielaj	CPPclang++18.1.3	Error
Jul 18, 2025 12:03	zielaj	CPPclang++18.1.3	Error
Jul 18, 2025 11:54	zielaj	CPPclang++18.1.3	Success	33,071
Jul 18, 2025 11:53	zielaj	CPPclang++18.1.3	Success	33,071
Jul 18, 2025 11:52	zielaj	CPPclang++18.1.3	Success	33,064+0.01 RP
Jul 18, 2025 01:02	zielaj	CPPclang++18.1.3	Success	33,065+0.66 RP
Jul 18, 2025 00:28	zielaj	CPPclang++18.1.3	Success	33,311
Jul 18, 2025 00:28	zielaj	CPPclang++18.1.3	Success	33,804
Jul 18, 2025 00:22	zielaj	CPPclang++18.1.3	Error
Jul 18, 2025 00:21	zielaj	CPPclang++18.1.3	Error
Jul 18, 2025 00:17	zielaj	CPPclang++18.1.3	Success	35,590
Jul 18, 2025 00:11	zielaj	CPPclang++18.1.3	Success	33,137+0.15 RP
Jul 18, 2025 00:08	zielaj	CPPclang++18.1.3	Success	33,483
Jul 17, 2025 23:49	zielaj	CPPclang++18.1.3	Success	36,052
Jul 17, 2025 20:57	zielaj	CPPclang++18.1.3	Success	35,846
Jul 17, 2025 20:55	zielaj	CPPclang++18.1.3	Error
Jul 17, 2025 20:49	zielaj	CPPclang++18.1.3	Success	33,915
Jul 17, 2025 20:48	zielaj	CPPclang++18.1.3	Success	33,153+5.95 RP
Jul 17, 2025 01:31	zielaj	CPPclang++18.1.3	Success	33,820+28.22 RP
Jul 17, 2025 00:56	zielaj	CPPclang++18.1.3	Success	37,390
Jul 17, 2025 00:52	zielaj	CPPclang++18.1.3	Success	38,100
Jul 17, 2025 00:52	zielaj	CPPclang++18.1.3	Success	37,850
Jul 16, 2025 12:48	zielaj	CPPclang++18.1.3	Success	38,049
Jul 16, 2025 12:44	zielaj	CPPclang++18.1.3	Error
Jul 16, 2025 12:42	zielaj	CPPclang++18.1.3	Success	37,681
Jul 16, 2025 12:38	zielaj	CPPclang++18.1.3	Success	39,437
Jul 16, 2025 12:37	zielaj	CPPclang++18.1.3	Success	37,982
Jul 16, 2025 12:30	zielaj	CPPclang++18.1.3	Error
Jul 16, 2025 12:21	zielaj	CPPclang++18.1.3	Error
Jul 16, 2025 01:27	zielaj	CPPclang++18.1.3	Error
Jul 16, 2025 01:24	zielaj	CPPclang++18.1.3	Success	38,585
Jul 16, 2025 01:14	zielaj	CPPclang++18.1.3	Error
Jul 16, 2025 01:00	zielaj	CPPclang++18.1.3	Success	38,366
Jul 16, 2025 00:32	zielaj	CPPclang++18.1.3	Success	37,962
Jul 16, 2025 00:30	zielaj	CPPclang++18.1.3	Success	37,399
Jul 16, 2025 00:29	zielaj	CPPclang++18.1.3	Success	38,361
Jul 16, 2025 00:28	zielaj	CPPclang++18.1.3	Success	38,542
Jul 16, 2025 00:27	zielaj	CPPclang++18.1.3	Success	37,689
Jul 16, 2025 00:21	zielaj	CPPclang++18.1.3	Success	37,389+0.72 RP
Jul 15, 2025 23:53	zielaj	CPPclang++18.1.3	Success	37,491
Jul 15, 2025 23:42	zielaj	CPPclang++18.1.3	Error
Jul 15, 2025 21:54	zielaj	CPPclang++18.1.3	Error

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