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: 102,297Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Mar 21, 2026 02:12	100,659	60,959,884	35,175,000	2,069,000	2,342,912
2	Mar 21, 2026 02:11	100,859	60,076,814	35,301,000	2,017,000	2,379,776
3	Mar 21, 2026 02:16	100,919	65,316,903	34,313,000	3,027,000	2,342,912
4	Mar 21, 2026 02:05	100,973	58,707,453	34,331,000	3,029,000	2,371,584
5	Mar 21, 2026 02:09	101,032	67,118,440	35,362,000	2,020,000	2,342,912
6	Mar 21, 2026 02:25	101,084	63,580,337	34,369,000	3,032,000	2,342,912
7	Mar 21, 2026 02:11	101,259	60,081,882	35,441,000	2,025,000	2,334,720
8	Mar 21, 2026 02:19	101,351	60,534,758	35,473,000	2,027,000	2,342,912
9	Mar 21, 2026 02:10	101,359	65,804,227	34,463,000	3,040,000	2,371,584
10	Mar 21, 2026 02:19	101,389	62,521,955	36,501,000	1,013,000	2,367,488
11	Mar 21, 2026 02:16	101,489	65,578,987	36,537,000	1,014,000	2,371,584
12	Mar 21, 2026 02:23	101,581	68,257,984	36,570,000	1,015,000	2,342,912
13	Mar 21, 2026 02:24	101,651	63,651,623	35,578,000	2,033,000	2,342,912
14	Mar 21, 2026 02:18	101,762	66,210,156	36,635,000	1,017,000	2,342,912
15	Mar 21, 2026 02:26	101,805	66,066,372	35,632,000	2,036,000	2,342,912
16	Mar 21, 2026 02:12	101,889	62,938,141	36,681,000	1,018,000	2,330,624
17	Mar 21, 2026 02:23	101,892	62,733,218	35,663,000	2,037,000	2,371,584
18	Mar 21, 2026 02:23	101,949	63,384,487	35,682,000	2,039,000	2,342,912
19	Mar 21, 2026 02:09	102,195	63,945,075	37,812,000	0	2,342,912
20	Mar 21, 2026 02:11	102,246	63,344,922	36,836,000	995,000	2,342,912
21	Mar 21, 2026 02:18	102,259	65,589,476	35,845,000	1,991,000	2,342,912
22	Mar 21, 2026 02:23	102,262	67,237,939	34,850,000	2,987,000	2,379,776
23	Mar 21, 2026 02:24	102,265	68,199,762	34,851,000	2,987,000	2,334,720
24	Mar 21, 2026 02:13	102,270	65,374,171	34,853,000	2,987,000	2,371,584
25	Mar 21, 2026 02:25	102,270	64,318,471	36,845,000	995,000	2,342,912
26	Mar 21, 2026 02:11	102,284	69,707,024	36,850,000	995,000	2,342,912
27	Mar 21, 2026 02:26	102,295	64,130,419	36,827,000	1,022,000	2,375,680
28	Mar 21, 2026 02:10	102,297	62,876,452	35,858,000	1,992,000	2,342,912
29	Mar 21, 2026 02:27	102,300	64,746,842	35,859,000	1,992,000	2,342,912
30	Mar 21, 2026 02:14	102,319	63,394,627	34,870,000	2,988,000	2,342,912
31	Mar 21, 2026 02:13	102,319	63,650,234	35,866,000	1,992,000	2,379,776
32	Mar 21, 2026 02:25	102,359	64,727,008	34,883,000	2,990,000	2,342,912
33	Mar 21, 2026 02:05	102,389	62,394,175	35,837,000	2,047,000	2,363,392
34	Mar 21, 2026 02:11	102,435	64,490,910	34,909,000	2,992,000	2,334,720
35	Mar 21, 2026 02:12	102,481	62,510,222	35,923,000	1,995,000	2,342,912
36	Mar 21, 2026 02:26	102,511	64,804,441	35,933,000	1,996,000	2,342,912
37	Mar 21, 2026 02:23	102,546	71,145,655	34,947,000	2,995,000	2,375,680
38	Mar 21, 2026 02:27	102,627	64,989,211	35,974,000	1,998,000	2,371,584
39	Mar 21, 2026 02:11	102,681	62,698,676	34,993,000	2,999,000	2,371,584
40	Mar 21, 2026 02:19	102,738	63,701,906	35,012,000	3,001,000	2,342,912
41	Mar 21, 2026 02:24	102,805	66,950,665	35,035,000	3,003,000	2,338,816
42	Mar 21, 2026 02:25	102,876	65,001,359	35,059,000	3,005,000	2,342,912
43	Mar 21, 2026 02:05	102,927	65,662,720	36,079,000	2,004,000	2,342,912
44	Mar 21, 2026 02:10	102,949	63,367,942	35,084,000	3,007,000	2,342,912
45	Mar 21, 2026 02:25	102,995	62,954,378	35,100,000	3,008,000	2,342,912
46	Mar 21, 2026 02:13	103,032	62,996,187	36,062,000	2,060,000	2,367,488
47	Mar 21, 2026 02:16	103,057	63,560,143	35,121,000	3,010,000	2,363,392
48	Mar 21, 2026 02:25	103,173	64,821,787	36,165,000	2,009,000	2,375,680
49	Mar 21, 2026 02:23	103,422	61,425,556	36,252,000	2,014,000	2,342,912
50	Mar 21, 2026 02:09	103,711	59,323,237	35,344,000	3,029,000	2,383,872
51	Mar 21, 2026 02:27	104,232	65,743,816	36,537,000	2,029,000	2,367,488
52	Mar 21, 2026 02:14	104,986	67,402,417	37,849,000	996,000	2,342,912
53	Mar 21, 2026 02:18	105,862	74,854,131	36,232,000	2,937,000	2,437,120
54	Mar 21, 2026 02:14	113,189	77,737,404	39,886,000	1,994,000	2,351,104

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