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: 102,259Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Mar 21, 2026 00:09	100,800	65,391,130	35,280,000	2,016,000	2,342,912
2	Mar 21, 2026 00:00	100,889	63,152,910	34,303,000	3,026,000	2,334,720
3	Mar 21, 2026 00:06	101,035	61,529,257	34,352,000	3,031,000	2,342,912
4	Mar 20, 2026 23:59	101,170	58,198,588	34,398,000	3,035,000	2,342,912
5	Mar 20, 2026 23:58	101,232	58,617,323	35,432,000	2,024,000	2,424,832
6	Mar 20, 2026 23:58	101,430	60,817,546	36,515,000	1,014,000	2,535,424
7	Mar 20, 2026 23:59	101,484	64,939,883	35,520,000	2,029,000	2,342,912
8	Mar 21, 2026 00:08	101,484	60,314,071	36,535,000	1,014,000	2,420,736
9	Mar 21, 2026 00:04	101,516	62,495,462	36,546,000	1,015,000	2,535,424
10	Mar 21, 2026 00:02	101,592	68,227,617	35,558,000	2,031,000	2,342,912
11	Mar 20, 2026 23:59	101,638	65,265,961	36,590,000	1,016,000	2,342,912
12	Mar 21, 2026 00:04	101,684	62,169,669	36,607,000	1,016,000	2,342,912
13	Mar 21, 2026 00:08	101,751	64,575,587	35,613,000	2,035,000	2,412,544
14	Mar 21, 2026 00:05	101,765	63,784,236	36,636,000	1,017,000	2,416,640
15	Mar 21, 2026 00:06	101,803	66,025,825	35,631,000	2,036,000	2,408,448
16	Mar 20, 2026 23:57	101,838	66,552,720	35,644,000	2,036,000	2,334,720
17	Mar 20, 2026 23:57	101,870	68,201,237	36,674,000	1,018,000	2,342,912
18	Mar 21, 2026 00:06	101,919	64,971,834	35,672,000	2,038,000	2,404,352
19	Mar 20, 2026 23:55	101,924	62,557,714	36,720,000	992,000	2,400,256
20	Mar 21, 2026 00:11	102,124	63,987,862	35,798,000	1,988,000	2,342,912
21	Mar 20, 2026 23:53	102,192	62,602,063	35,821,000	1,990,000	2,412,544
22	Mar 20, 2026 23:57	102,254	63,334,840	34,848,000	2,986,000	2,342,912
23	Mar 20, 2026 23:55	102,254	63,871,719	36,839,000	995,000	2,342,912
24	Mar 21, 2026 00:06	102,257	63,522,506	35,844,000	1,991,000	2,342,912
25	Mar 21, 2026 00:02	102,259	65,083,066	35,845,000	1,991,000	2,342,912
26	Mar 21, 2026 00:08	102,311	65,691,021	35,863,000	1,992,000	2,404,352
27	Mar 20, 2026 23:53	102,311	65,268,514	35,863,000	1,992,000	2,416,640
28	Mar 21, 2026 00:06	102,316	64,962,855	35,865,000	1,992,000	2,408,448
29	Mar 21, 2026 00:08	102,319	64,282,723	35,866,000	1,992,000	2,416,640
30	Mar 21, 2026 00:05	102,327	62,297,934	34,872,000	2,989,000	2,416,640
31	Mar 20, 2026 23:58	102,330	62,993,779	34,873,000	2,989,000	2,412,544
32	Mar 21, 2026 00:08	102,343	68,548,213	36,844,000	1,023,000	2,404,352
33	Mar 21, 2026 00:11	102,484	57,596,958	34,926,000	2,993,000	2,408,448
34	Mar 20, 2026 23:59	102,695	65,278,451	35,998,000	1,999,000	2,412,544
35	Mar 20, 2026 23:59	102,730	66,830,787	36,010,000	2,000,000	2,342,912
36	Mar 21, 2026 00:09	102,757	74,174,545	36,019,000	2,001,000	2,408,448
37	Mar 20, 2026 23:55	102,811	61,942,814	36,038,000	2,002,000	2,342,912
38	Mar 21, 2026 00:11	102,819	65,478,834	36,041,000	2,002,000	2,412,544
39	Mar 20, 2026 23:53	102,970	60,542,255	35,092,000	3,007,000	2,408,448
40	Mar 21, 2026 00:04	103,014	65,163,678	35,106,000	3,009,000	2,342,912
41	Mar 21, 2026 00:09	103,097	66,154,955	36,139,000	2,007,000	2,330,624
42	Mar 21, 2026 00:02	103,208	68,460,735	36,178,000	2,009,000	2,396,160
43	Mar 20, 2026 23:59	103,292	59,761,553	35,201,000	3,017,000	2,412,544
44	Mar 21, 2026 00:05	103,359	63,440,459	36,231,000	2,012,000	2,510,848
45	Mar 21, 2026 00:08	103,365	62,446,668	35,226,000	3,019,000	2,342,912
46	Mar 21, 2026 00:00	104,984	54,762,514	36,852,000	1,992,000	2,342,912
47	Mar 21, 2026 00:00	107,265	69,582,850	38,671,000	1,017,000	2,342,912
48	Mar 21, 2026 00:06	110,016	126,015,111	37,575,000	3,131,000	2,347,008

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