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 2, 2021 07:04

Yuriy LyfenkoScore: 116,449Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jul 2, 2021 07:04	113,779	588,055,427	556,518,000	999,000	2,494,464
2	Jul 2, 2021 07:04	113,906	589,046,341	556,137,000	2,000,000	2,265,088
3	Jul 2, 2021 07:04	113,920	587,816,549	557,207,000	1,000,000	2,527,232
4	Jul 2, 2021 07:04	114,022	585,675,978	556,711,000	1,998,000	2,371,584
5	Jul 2, 2021 07:04	114,285	582,545,020	559,998,000	0	2,260,992
6	Jul 2, 2021 07:04	114,428	589,303,329	558,698,000	1,998,000	2,371,584
7	Jul 2, 2021 07:04	114,558	589,681,466	561,334,000	0	2,379,776
8	Jul 2, 2021 07:04	114,582	589,351,366	560,455,000	999,000	2,527,232
9	Jul 2, 2021 07:04	114,875	599,068,862	560,889,000	1,999,000	2,527,232
10	Jul 2, 2021 07:04	115,118	592,106,951	563,080,000	1,000,000	2,375,680
11	Jul 2, 2021 07:04	115,125	591,239,285	564,111,000	0	2,371,584
12	Jul 2, 2021 07:04	115,189	592,065,318	563,426,000	998,000	2,527,232
13	Jul 2, 2021 07:04	115,303	590,484,251	563,988,000	999,000	2,371,584
14	Jul 2, 2021 07:04	115,330	592,157,459	563,115,000	2,000,000	2,523,136
15	Jul 2, 2021 07:04	115,900	591,626,223	566,910,000	999,000	2,265,088
16	Jul 2, 2021 07:04	115,912	593,871,349	565,971,000	1,999,000	2,265,088
17	Jul 2, 2021 07:04	116,205	594,308,437	567,406,000	1,997,000	2,265,088
18	Jul 2, 2021 07:04	116,293	599,519,905	567,835,000	1,999,000	2,265,088
19	Jul 2, 2021 07:04	116,449	604,764,324	569,601,000	999,000	2,375,680
20	Jul 2, 2021 07:04	116,506	595,467,559	569,879,000	999,000	2,265,088
21	Jul 2, 2021 07:04	116,773	600,752,480	571,189,000	1,000,000	2,265,088
22	Jul 2, 2021 07:04	116,911	600,154,724	570,865,000	1,999,000	2,527,232
23	Jul 2, 2021 07:04	117,906	607,770,192	575,739,000	1,999,000	2,367,488
24	Jul 2, 2021 07:04	118,636	608,608,149	580,317,000	1,000,000	2,527,232
25	Jul 2, 2021 07:04	118,819	608,475,946	582,211,000	0	2,375,680
26	Jul 2, 2021 07:04	119,387	612,657,461	583,997,000	999,000	2,371,584
27	Jul 2, 2021 07:04	120,793	617,316,765	590,887,000	999,000	2,527,232
28	Jul 2, 2021 07:04	129,222	693,302,475	633,185,704	0	2,240,512
29	Jul 2, 2021 07:04	129,719	713,620,078	635,623,460	0	2,232,320
30	Jul 2, 2021 07:04	130,540	695,289,458	639,646,806	0	2,240,512
31	Jul 2, 2021 07:04	130,703	695,617,144	640,442,294	0	2,236,416
32	Jul 2, 2021 07:04	130,967	702,361,294	641,739,142	0	2,232,320
33	Jul 2, 2021 07:04	131,557	702,884,117	644,628,782	0	2,244,608
34	Jul 2, 2021 07:04	132,238	704,534,617	647,965,292	0	2,228,224
35	Jul 2, 2021 07:04	134,068	721,614,665	656,932,924	0	2,232,320
36	Jul 2, 2021 07:04	134,903	719,754,588	661,026,297	0	2,244,608

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