TopK

Find the sum of the 100 largest values in a stream of binary integers as fast as possible.

Input: 100 000 000 uint32 values in little-endian binary on STDIN (4 bytes each).

Output: The uint64 sum of the top 100 greatest values, printed as a decimal string.

Restrictions:60s512Mb 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.

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olliecrowScore: 102,281Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Mar 21, 2026 00:37	100,722	61,804,339	34,246,000	3,021,000	2,342,912
2	Mar 21, 2026 00:39	100,903	63,667,159	34,307,000	3,027,000	2,416,640
3	Mar 21, 2026 00:38	101,068	59,754,911	34,363,000	3,032,000	2,408,448
4	Mar 21, 2026 00:42	101,114	57,904,438	34,379,000	3,033,000	2,342,912
5	Mar 21, 2026 00:46	101,127	58,266,477	34,384,000	3,033,000	2,408,448
6	Mar 21, 2026 00:41	101,192	57,006,474	35,418,000	2,023,000	2,412,544
7	Mar 21, 2026 00:41	101,203	63,072,359	35,421,000	2,024,000	2,412,544
8	Mar 21, 2026 01:02	101,232	61,668,262	36,444,000	1,012,000	2,342,912
9	Mar 21, 2026 00:43	101,243	59,576,670	34,423,000	3,037,000	2,416,640
10	Mar 21, 2026 00:45	101,362	64,200,480	35,477,000	2,027,000	2,416,640
11	Mar 21, 2026 00:35	101,376	62,096,648	35,482,000	2,027,000	2,412,544
12	Mar 21, 2026 00:37	101,435	61,286,593	35,503,000	2,028,000	2,330,624
13	Mar 21, 2026 00:47	101,511	64,060,698	36,544,000	1,015,000	2,416,640
14	Mar 21, 2026 00:44	101,619	61,319,412	35,567,000	2,032,000	2,342,912
15	Mar 21, 2026 01:02	101,649	63,975,984	35,577,000	2,033,000	2,342,912
16	Mar 21, 2026 00:45	101,654	62,738,666	35,579,000	2,033,000	2,342,912
17	Mar 21, 2026 00:38	101,730	65,188,695	36,623,000	1,017,000	2,408,448
18	Mar 21, 2026 00:48	101,757	64,235,582	36,633,000	1,017,000	2,535,424
19	Mar 21, 2026 00:43	101,759	66,532,320	36,634,000	1,017,000	2,412,544
20	Mar 21, 2026 00:42	101,770	63,006,533	35,620,000	2,035,000	2,330,624
21	Mar 21, 2026 00:50	102,214	63,717,530	34,834,000	2,985,000	2,412,544
22	Mar 21, 2026 00:47	102,232	64,132,946	36,831,000	995,000	2,342,912
23	Mar 21, 2026 00:49	102,235	68,226,154	36,832,000	995,000	2,342,912
24	Mar 21, 2026 00:50	102,249	66,811,519	35,841,000	1,991,000	2,342,912
25	Mar 21, 2026 00:39	102,249	69,758,958	36,837,000	995,000	2,420,736
26	Mar 21, 2026 00:50	102,254	61,646,753	35,843,000	1,991,000	2,408,448
27	Mar 21, 2026 00:41	102,262	63,055,487	36,842,000	995,000	2,342,912
28	Mar 21, 2026 00:49	102,281	65,087,199	35,853,000	1,991,000	2,416,640
29	Mar 21, 2026 00:39	102,349	66,622,773	36,873,000	996,000	2,416,640
30	Mar 21, 2026 01:04	102,351	66,265,451	35,877,000	1,993,000	2,326,528
31	Mar 21, 2026 00:48	102,386	62,656,313	34,893,000	2,990,000	2,408,448
32	Mar 21, 2026 00:44	102,430	62,737,813	34,907,000	2,992,000	2,412,544
33	Mar 21, 2026 00:39	102,451	65,622,707	35,912,000	1,995,000	2,342,912
34	Mar 21, 2026 00:42	102,489	69,334,802	35,926,000	1,995,000	2,342,912
35	Mar 21, 2026 00:41	102,524	68,120,868	34,940,000	2,994,000	2,416,640
36	Mar 21, 2026 00:39	102,549	68,879,833	34,948,000	2,995,000	2,342,912
37	Mar 21, 2026 00:43	102,630	61,752,061	35,975,000	1,998,000	2,527,232
38	Mar 21, 2026 00:45	102,703	64,929,563	35,000,000	3,000,000	2,412,544
39	Mar 21, 2026 01:04	102,795	64,413,631	37,034,000	1,000,000	2,342,912
40	Mar 21, 2026 00:46	102,808	64,667,258	35,036,000	3,003,000	2,330,624
41	Mar 21, 2026 00:35	103,049	66,738,201	35,118,000	3,010,000	2,342,912
42	Mar 21, 2026 00:41	103,092	63,457,582	35,133,000	3,011,000	2,330,624
43	Mar 21, 2026 00:46	103,143	59,926,744	35,151,000	3,012,000	2,342,912
44	Mar 21, 2026 00:47	103,157	61,161,241	36,160,000	2,008,000	2,412,544
45	Mar 21, 2026 01:04	103,200	67,107,385	35,170,000	3,014,000	2,334,720
46	Mar 21, 2026 00:37	103,278	64,870,192	35,197,000	3,016,000	2,408,448
47	Mar 21, 2026 00:35	103,308	70,628,042	35,207,000	3,017,000	2,416,640
48	Mar 21, 2026 00:39	103,357	72,664,884	35,223,000	3,019,000	2,342,912
49	Mar 21, 2026 01:02	103,541	63,356,990	36,294,000	2,016,000	2,342,912
50	Mar 21, 2026 00:44	103,803	62,057,697	35,375,000	3,032,000	2,408,448
51	Mar 21, 2026 00:38	103,938	63,354,450	35,421,000	3,036,000	2,342,912
52	Mar 21, 2026 00:49	104,554	68,401,038	36,649,000	2,036,000	2,408,448
53	Mar 21, 2026 00:48	108,835	85,762,199	38,204,000	2,065,000	2,314,240
54	Mar 21, 2026 00:41	109,641	78,638,264	38,539,000	2,028,000	2,338,816

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