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 31, 2025 17:14	zielaj	CPPclang++18.1.3	Error
Jul 31, 2025 16:59	zielaj	CPPclang++18.1.3	Success	24,650
Jul 31, 2025 13:10	zielaj	CPPclang++18.1.3	Success	24,693
Jul 31, 2025 00:02	zielaj	CPPclang++18.1.3	Success	24,267
Jul 30, 2025 23:58	zielaj	CPPclang++18.1.3	Success	24,265
Jul 30, 2025 23:58	zielaj	CPPclang++18.1.3	Success	24,306
Jul 30, 2025 23:57	zielaj	CPPclang++18.1.3	Success	24,270
Jul 30, 2025 23:56	zielaj	CPPclang++18.1.3	Success	25,896
Jul 30, 2025 23:54	zielaj	CPPclang++18.1.3	Success	26,205
Jul 30, 2025 23:49	zielaj	CPPclang++18.1.3	Success	24,269+0.32 RP
Jul 30, 2025 23:48	zielaj	CPPclang++18.1.3	Success	24,297
Jul 30, 2025 23:39	zielaj	CPPclang++18.1.3	Success	24,289
Jul 30, 2025 23:36	zielaj	CPPclang++18.1.3	Success	24,298
Jul 30, 2025 23:20	zielaj	CPPclang++18.1.3	Error
Jul 30, 2025 23:03	zielaj	CPPclang++18.1.3	Error
Jul 30, 2025 23:01	zielaj	CPPclang++18.1.3	Success	24,422
Jul 30, 2025 18:28	zielaj	CPPclang++18.1.3	Success	24,442
Jul 30, 2025 18:28	zielaj	CPPclang++18.1.3	Success	24,928
Jul 30, 2025 15:49	zielaj	CPPclang++18.1.3	Success	26,268
Jul 30, 2025 15:47	zielaj	CPPclang++18.1.3	Success	24,293
Jul 30, 2025 15:46	zielaj	CPPclang++18.1.3	Success	24,292
Jul 30, 2025 15:44	zielaj	CPPclang++18.1.3	Success	24,501
Jul 30, 2025 15:43	zielaj	CPPclang++18.1.3	Success	24,481
Jul 30, 2025 15:43	zielaj	CPPclang++18.1.3	Success	24,496
Jul 30, 2025 15:41	zielaj	CPPclang++18.1.3	Error
Jul 30, 2025 15:41	zielaj	CPPclang++18.1.3	Success	24,515
Jul 30, 2025 15:39	zielaj	CPPclang++18.1.3	Success	24,542
Jul 30, 2025 15:34	zielaj	CPPclang++18.1.3	Success	24,997
Jul 30, 2025 15:32	zielaj	CPPclang++18.1.3	Error
Jul 30, 2025 15:28	zielaj	CPPclang++18.1.3	Success	24,516
Jul 30, 2025 15:24	zielaj	CPPclang++18.1.3	Success	24,313
Jul 30, 2025 15:21	zielaj	CPPclang++18.1.3	Success	24,288+0.07 RP
Jul 30, 2025 15:20	zielaj	CPPclang++18.1.3	Success	24,303
Jul 30, 2025 15:16	zielaj	CPPclang++18.1.3	Success	24,447
Jul 30, 2025 15:15	zielaj	CPPclang++18.1.3	Error
Jul 30, 2025 12:54	zielaj	CPPclang++18.1.3	Success	24,732
Jul 30, 2025 12:53	zielaj	CPPclang++18.1.3	Success	24,678
Jul 30, 2025 12:51	zielaj	CPPclang++18.1.3	Error
Jul 30, 2025 12:50	zielaj	CPPclang++18.1.3	Success	24,678
Jul 30, 2025 12:49	zielaj	CPPclang++18.1.3	Success	24,695
Jul 30, 2025 12:46	zielaj	CPPclang++18.1.3	Error
Jul 30, 2025 12:45	zielaj	CPPclang++18.1.3	Error
Jul 30, 2025 12:44	zielaj	CPPclang++18.1.3	Error
Jul 30, 2025 12:42	zielaj	CPPclang++18.1.3	Error
Jul 30, 2025 12:41	zielaj	CPPclang++18.1.3	Error
Jul 30, 2025 12:38	zielaj	CPPclang++18.1.3	Error
Jul 30, 2025 12:35	zielaj	CPPclang++18.1.3	Error
Jul 30, 2025 12:01	zielaj	CPPclang++18.1.3	Success	24,759
Jul 30, 2025 02:34	zielaj	CPPclang++18.1.3	Error
Jul 30, 2025 02:32	zielaj	CPPclang++18.1.3	Success	24,627
Jul 30, 2025 02:31	zielaj	CPPclang++18.1.3	Success	24,433
Jul 30, 2025 02:28	zielaj	CPPclang++18.1.3	Error
Jul 30, 2025 02:23	zielaj	CPPclang++18.1.3	Error
Jul 30, 2025 02:16	zielaj	CPPclang++18.1.3	Success	24,627
Jul 30, 2025 02:07	zielaj	CPPclang++18.1.3	Success	24,313
Jul 30, 2025 02:06	zielaj	CPPclang++18.1.3	Success	26,077
Jul 30, 2025 02:05	zielaj	CPPclang++18.1.3	Error
Jul 30, 2025 02:04	zielaj	CPPclang++18.1.3	Success	24,601
Jul 30, 2025 02:02	zielaj	CPPclang++18.1.3	Success	24,632
Jul 30, 2025 01:53	zielaj	CPPclang++18.1.3	Success	25,723
Jul 30, 2025 01:48	zielaj	CPPclang++18.1.3	Success	24,934
Jul 30, 2025 01:46	zielaj	CPPclang++18.1.3	Success	25,204
Jul 30, 2025 01:45	zielaj	CPPclang++18.1.3	Success	24,292+0.19 RP
Jul 30, 2025 01:44	zielaj	CPPclang++18.1.3	Success	25,158
Jul 30, 2025 01:40	zielaj	CPPclang++18.1.3	Error
Jul 30, 2025 01:38	zielaj	CPPclang++18.1.3	Success	26,142
Jul 30, 2025 01:34	zielaj	CPPclang++18.1.3	Success	24,356
Jul 30, 2025 01:32	zielaj	CPPclang++18.1.3	Error
Jul 30, 2025 01:31	zielaj	CPPclang++18.1.3	Success	25,212
Jul 30, 2025 01:26	zielaj	CPPclang++18.1.3	Success	26,539
Jul 29, 2025 21:29	zielaj	CPPclang++18.1.3	Success	25,127
Jul 29, 2025 21:24	zielaj	CPPclang++18.1.3	Success	24,496
Jul 29, 2025 21:00	Aniruddha Deb	CPPg++13.3.0	Error
Jul 29, 2025 20:43	zielaj	CPPclang++18.1.3	Error
Jul 29, 2025 20:40	zielaj	CPPclang++18.1.3	Success	24,949
Jul 29, 2025 20:38	zielaj	CPPclang++18.1.3	Success	24,718
Jul 29, 2025 20:35	zielaj	CPPclang++18.1.3	Success	24,303+2.09 RP
Jul 29, 2025 20:29	zielaj	CPPclang++18.1.3	Success	25,930
Jul 29, 2025 20:20	zielaj	CPPclang++18.1.3	Success	24,699
Jul 29, 2025 20:13	zielaj	CPPclang++18.1.3	Success	25,472
Jul 29, 2025 19:25	zielaj	CPPclang++18.1.3	Success	28,141
Jul 29, 2025 17:26	zielaj	CPPclang++18.1.3	Success	25,151
Jul 29, 2025 13:27	zielaj	CPPclang++18.1.3	Error
Jul 29, 2025 13:25	zielaj	CPPclang++18.1.3	Error
Jul 29, 2025 13:20	zielaj	CPPclang++18.1.3	Success	28,231
Jul 29, 2025 13:19	zielaj	CPPclang++18.1.3	Success	28,244
Jul 29, 2025 12:07	zielaj	CPPclang++18.1.3	Success	24,427+2.32 RP
Jul 29, 2025 12:07	zielaj	CPPclang++18.1.3	Success	24,973
Jul 29, 2025 02:33	zielaj	CPPclang++18.1.3	Error
Jul 29, 2025 02:32	zielaj	CPPclang++18.1.3	Error
Jul 29, 2025 02:22	zielaj	CPPclang++18.1.3	Error
Jul 29, 2025 02:15	zielaj	CPPclang++18.1.3	Success	25,060
Jul 29, 2025 02:14	zielaj	CPPclang++18.1.3	Success	24,576
Jul 29, 2025 02:13	zielaj	CPPclang++18.1.3	Success	25,319
Jul 29, 2025 02:11	zielaj	CPPclang++18.1.3	Success	25,088
Jul 29, 2025 02:08	zielaj	CPPclang++18.1.3	Success	24,566+4.64 RP
Jul 29, 2025 02:03	zielaj	CPPclang++18.1.3	Success	24,849+2.72 RP
Jul 29, 2025 01:21	zielaj	CPPclang++18.1.3	Success	25,041
Jul 29, 2025 01:17	zielaj	CPPclang++18.1.3	Success	25,240
Jul 29, 2025 01:04	zielaj	CPPclang++18.1.3	Success	25,046

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