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: 102,324Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Mar 21, 2026 03:23	100,573	60,397,725	34,195,000	3,017,000	2,334,720
2	Mar 21, 2026 03:05	100,765	62,532,026	35,268,000	2,015,000	2,375,680
3	Mar 21, 2026 03:27	100,838	63,064,432	34,285,000	3,025,000	2,342,912
4	Mar 21, 2026 03:26	101,170	58,292,056	35,410,000	2,023,000	2,383,872
5	Mar 21, 2026 03:24	101,211	59,573,597	35,424,000	2,024,000	2,371,584
6	Mar 21, 2026 03:24	101,235	64,336,223	34,420,000	3,037,000	2,383,872
7	Mar 21, 2026 03:11	101,292	60,096,285	35,453,000	2,025,000	2,338,816
8	Mar 21, 2026 03:27	101,381	62,960,140	34,470,000	3,041,000	2,379,776
9	Mar 21, 2026 03:19	101,451	61,051,176	35,508,000	2,029,000	2,342,912
10	Mar 21, 2026 03:14	101,470	65,570,302	36,530,000	1,014,000	2,342,912
11	Mar 21, 2026 03:25	101,511	65,801,817	36,544,000	1,015,000	2,375,680
12	Mar 21, 2026 03:07	101,532	59,883,115	36,552,000	1,015,000	2,506,752
13	Mar 21, 2026 03:06	101,546	67,542,437	35,542,000	2,030,000	2,375,680
14	Mar 21, 2026 03:25	101,589	70,722,236	35,557,000	2,031,000	2,383,872
15	Mar 21, 2026 03:09	101,662	63,802,062	36,599,000	1,016,000	2,383,872
16	Mar 21, 2026 03:15	101,689	66,449,925	35,592,000	2,033,000	2,342,912
17	Mar 21, 2026 03:15	101,700	60,666,592	35,595,000	2,034,000	2,342,912
18	Mar 21, 2026 03:20	101,703	65,490,741	36,613,000	1,017,000	2,342,912
19	Mar 21, 2026 03:10	101,757	67,793,630	36,633,000	1,017,000	2,342,912
20	Mar 21, 2026 03:13	101,773	64,446,371	35,621,000	2,035,000	2,379,776
21	Mar 21, 2026 03:13	101,781	65,628,341	35,624,000	2,035,000	2,342,912
22	Mar 21, 2026 03:16	101,838	69,399,388	36,662,000	1,018,000	2,375,680
23	Mar 21, 2026 03:23	101,859	65,715,703	36,670,000	1,018,000	2,342,912
24	Mar 21, 2026 03:06	101,957	60,368,180	35,685,000	2,039,000	2,342,912
25	Mar 21, 2026 03:20	102,189	62,262,850	34,825,000	2,985,000	2,342,912
26	Mar 21, 2026 03:05	102,222	60,788,267	35,832,000	1,990,000	2,342,912
27	Mar 21, 2026 03:07	102,227	65,236,648	35,834,000	1,990,000	2,342,912
28	Mar 21, 2026 03:24	102,227	63,816,167	35,834,000	1,990,000	2,342,912
29	Mar 21, 2026 03:25	102,259	69,346,531	34,849,000	2,987,000	2,342,912
30	Mar 21, 2026 03:10	102,297	70,946,012	35,858,000	1,992,000	2,375,680
31	Mar 21, 2026 03:07	102,324	62,720,398	35,868,000	1,992,000	2,379,776
32	Mar 21, 2026 03:24	102,357	64,010,538	34,883,000	2,989,000	2,379,776
33	Mar 21, 2026 03:22	102,368	62,258,726	34,886,000	2,990,000	2,469,888
34	Mar 21, 2026 03:14	102,451	64,036,498	34,915,000	2,992,000	2,334,720
35	Mar 21, 2026 03:04	102,538	62,263,487	34,944,000	2,995,000	2,375,680
36	Mar 21, 2026 03:19	102,541	67,075,885	35,944,000	1,996,000	2,383,872
37	Mar 21, 2026 03:24	102,614	64,265,979	34,970,000	2,997,000	2,342,912
38	Mar 21, 2026 03:14	102,646	67,138,212	34,981,000	2,998,000	2,342,912
39	Mar 21, 2026 03:24	102,651	62,177,172	35,982,000	1,999,000	2,334,720
40	Mar 21, 2026 03:04	102,659	68,164,485	35,985,000	1,999,000	2,342,912
41	Mar 21, 2026 03:16	102,705	67,498,237	36,001,000	2,000,000	2,342,912
42	Mar 21, 2026 03:11	102,773	65,751,616	36,025,000	2,001,000	2,342,912
43	Mar 21, 2026 03:22	102,786	63,272,575	36,030,000	2,001,000	2,342,912
44	Mar 21, 2026 03:09	102,805	67,146,697	36,036,000	2,002,000	2,334,720
45	Mar 21, 2026 03:26	102,811	58,425,997	35,037,000	3,003,000	2,342,912
46	Mar 21, 2026 03:20	102,916	61,978,223	36,075,000	2,004,000	2,510,848
47	Mar 21, 2026 03:05	102,949	63,748,563	35,084,000	3,007,000	2,342,912
48	Mar 21, 2026 03:27	102,954	71,069,691	35,086,000	3,007,000	2,342,912
49	Mar 21, 2026 03:04	103,049	64,769,633	35,118,000	3,010,000	2,379,776
50	Mar 21, 2026 03:13	103,054	61,749,427	35,120,000	3,010,000	2,342,912
51	Mar 21, 2026 03:06	103,197	67,048,186	36,174,000	2,009,000	2,375,680
52	Mar 21, 2026 03:22	103,343	63,495,742	36,225,000	2,012,000	2,375,680
53	Mar 21, 2026 03:16	103,392	65,822,421	35,235,000	3,020,000	2,383,872
54	Mar 21, 2026 03:15	103,622	63,478,208	36,323,000	2,017,000	2,375,680
55	Mar 21, 2026 03:23	103,897	61,055,103	35,408,000	3,034,000	2,387,968
56	Mar 21, 2026 03:26	103,959	63,515,825	37,453,000	1,012,000	2,379,776
57	Mar 21, 2026 03:19	104,951	64,950,580	38,832,000	0	2,351,104
58	Mar 21, 2026 03:10	105,435	69,386,404	36,011,000	3,000,000	2,383,872
59	Mar 21, 2026 03:11	109,024	59,103,018	37,314,000	3,025,000	2,338,816
60	Mar 21, 2026 03:09	109,505	81,005,537	39,529,000	988,000	2,351,104

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