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: 60,905Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Mar 6, 2026 11:27	60,614	41,174,204	21,408,000	1,019,000	2,273,280
2	Mar 9, 2026 13:26	60,614	50,155,164	21,408,000	1,019,000	2,396,160
3	Mar 6, 2026 11:27	60,716	44,281,556	21,444,000	1,021,000	2,273,280
4	Mar 10, 2026 06:13	60,727	41,388,544	21,448,000	1,021,000	2,392,064
5	Mar 6, 2026 11:27	60,738	48,213,266	22,473,000	0	2,273,280
6	Mar 6, 2026 11:27	60,762	43,985,224	21,461,000	1,021,000	2,396,160
7	Mar 9, 2026 13:26	60,773	49,585,625	21,464,000	1,022,000	2,396,160
8	Mar 6, 2026 11:20	60,781	48,294,598	21,467,000	1,022,000	2,273,280
9	Mar 10, 2026 06:13	60,786	46,907,142	22,491,000	0	2,273,280
10	Mar 10, 2026 03:13	60,797	45,632,785	21,473,000	1,022,000	2,273,280
11	Mar 9, 2026 13:30	60,800	45,140,225	22,496,000	0	2,404,352
12	Mar 10, 2026 06:13	60,800	42,202,577	21,474,000	1,022,000	2,400,256
13	Mar 6, 2026 11:31	60,800	45,288,553	21,474,000	1,022,000	2,396,160
14	Mar 10, 2026 06:13	60,814	50,023,600	21,479,000	1,022,000	2,273,280
15	Mar 9, 2026 13:26	60,816	44,567,199	21,480,000	1,022,000	2,273,280
16	Mar 10, 2026 06:08	60,824	44,620,250	22,505,000	0	2,519,040
17	Mar 10, 2026 03:13	60,827	46,709,222	21,483,000	1,023,000	2,396,160
18	Mar 6, 2026 11:27	60,835	43,732,278	22,509,000	0	2,273,280
19	Mar 10, 2026 03:13	60,835	42,162,454	21,486,000	1,023,000	2,273,280
20	Mar 9, 2026 13:30	60,843	51,125,626	22,512,000	0	2,387,968
21	Mar 6, 2026 11:31	60,851	50,995,874	21,492,000	1,023,000	2,392,064
22	Mar 6, 2026 11:27	60,854	49,698,777	21,493,000	1,023,000	2,273,280
23	Mar 9, 2026 13:26	60,865	42,330,827	21,497,000	1,023,000	2,273,280
24	Mar 10, 2026 03:27	60,870	44,956,402	21,499,000	1,023,000	2,273,280
25	Mar 10, 2026 03:27	60,873	47,165,570	21,500,000	1,023,000	2,273,280
26	Mar 10, 2026 03:13	60,876	49,755,823	22,524,000	0	2,273,280
27	Mar 9, 2026 13:26	60,897	50,884,181	22,532,000	0	2,404,352
28	Mar 10, 2026 03:13	60,905	47,178,429	21,511,000	1,024,000	2,404,352
29	Mar 9, 2026 13:24	60,914	45,132,537	21,514,000	1,024,000	2,273,280
30	Mar 10, 2026 03:27	60,957	49,473,481	21,529,000	1,025,000	2,273,280
31	Mar 10, 2026 06:13	60,962	44,716,171	22,556,000	0	2,400,256
32	Mar 6, 2026 11:20	60,970	44,104,136	21,534,000	1,025,000	2,400,256
33	Mar 9, 2026 13:24	60,973	47,235,320	21,535,000	1,025,000	2,273,280
34	Mar 6, 2026 11:27	61,022	44,457,452	21,552,000	1,026,000	2,400,256
35	Mar 9, 2026 13:26	61,030	52,317,660	21,555,000	1,026,000	2,400,256
36	Mar 9, 2026 13:26	61,041	50,546,128	21,559,000	1,026,000	2,273,280
37	Mar 9, 2026 13:26	61,043	49,204,728	22,586,000	0	2,277,376
38	Mar 9, 2026 13:30	61,051	53,589,309	21,563,000	1,026,000	2,387,968
39	Mar 6, 2026 11:31	61,054	50,047,672	21,564,000	1,026,000	2,404,352
40	Mar 6, 2026 11:27	61,059	43,361,821	22,592,000	0	2,273,280
41	Mar 10, 2026 03:13	61,065	51,531,426	22,594,000	0	2,273,280
42	Mar 10, 2026 06:13	61,092	49,242,875	22,604,000	0	2,273,280
43	Mar 6, 2026 11:27	61,097	51,888,417	21,579,000	1,027,000	2,392,064
44	Mar 10, 2026 03:13	61,116	51,224,664	22,613,000	0	2,396,160
45	Mar 10, 2026 06:08	61,124	50,801,241	22,616,000	0	2,273,280
46	Mar 10, 2026 03:13	61,141	38,702,252	21,594,000	1,028,000	2,273,280
47	Mar 9, 2026 13:24	61,151	47,947,135	21,598,000	1,028,000	2,273,280
48	Mar 9, 2026 13:26	61,214	49,958,135	22,649,000	0	2,273,280
49	Mar 10, 2026 06:13	61,216	48,775,129	22,650,000	0	2,404,352
50	Mar 10, 2026 06:13	61,257	56,010,208	22,665,000	0	2,396,160
51	Mar 10, 2026 06:08	61,270	52,131,594	21,640,000	1,030,000	2,396,160
52	Mar 10, 2026 03:13	61,276	53,777,924	22,672,000	0	2,273,280
53	Mar 6, 2026 11:20	61,314	48,340,360	21,655,000	1,031,000	2,273,280
54	Mar 10, 2026 06:13	61,346	47,259,775	21,667,000	1,031,000	2,396,160

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