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: 102,305Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Mar 21, 2026 04:53	100,354	64,762,584	35,124,000	2,007,000	2,334,720
2	Mar 21, 2026 04:59	100,408	61,479,364	35,143,000	2,008,000	2,375,680
3	Mar 21, 2026 04:57	100,603	59,251,958	34,205,000	3,018,000	2,367,488
4	Mar 21, 2026 05:02	100,722	58,961,112	34,246,000	3,021,000	2,342,912
5	Mar 21, 2026 04:54	100,824	62,660,547	34,281,000	3,024,000	2,342,912
6	Mar 21, 2026 04:50	100,859	61,442,429	35,301,000	2,017,000	2,367,488
7	Mar 21, 2026 04:57	100,914	59,596,462	35,320,000	2,018,000	2,375,680
8	Mar 21, 2026 04:50	101,068	62,524,817	34,363,000	3,032,000	2,371,584
9	Mar 21, 2026 05:01	101,165	58,556,445	35,408,000	2,023,000	2,342,912
10	Mar 21, 2026 04:53	101,219	64,270,441	35,427,000	2,024,000	2,371,584
11	Mar 21, 2026 04:59	101,354	58,587,517	36,488,000	1,013,000	2,342,912
12	Mar 21, 2026 04:49	101,465	58,362,281	35,513,000	2,029,000	2,338,816
13	Mar 21, 2026 05:02	101,481	64,697,931	35,519,000	2,029,000	2,342,912
14	Mar 21, 2026 04:53	101,516	60,417,649	36,546,000	1,015,000	2,371,584
15	Mar 21, 2026 04:59	101,524	62,087,147	35,534,000	2,030,000	2,371,584
16	Mar 21, 2026 04:55	101,714	69,054,517	36,617,000	1,017,000	2,342,912
17	Mar 21, 2026 04:50	101,759	62,430,019	36,634,000	1,017,000	2,342,912
18	Mar 21, 2026 04:54	101,768	63,592,195	36,637,000	1,017,000	2,342,912
19	Mar 21, 2026 04:51	101,778	64,349,033	36,641,000	1,017,000	2,383,872
20	Mar 21, 2026 04:56	101,795	63,941,036	35,629,000	2,035,000	2,371,584
21	Mar 21, 2026 05:00	101,816	68,147,886	35,636,000	2,036,000	2,342,912
22	Mar 21, 2026 04:52	101,976	63,011,216	35,746,000	1,985,000	2,338,816
23	Mar 21, 2026 05:00	102,157	64,173,059	34,814,000	2,984,000	2,342,912
24	Mar 21, 2026 04:54	102,189	70,309,491	36,815,000	995,000	2,342,912
25	Mar 21, 2026 04:55	102,216	63,312,038	35,830,000	1,990,000	2,342,912
26	Mar 21, 2026 04:56	102,227	63,643,127	34,838,000	2,986,000	2,371,584
27	Mar 21, 2026 04:52	102,268	64,621,512	35,848,000	1,991,000	2,342,912
28	Mar 21, 2026 04:59	102,276	62,506,275	35,851,000	1,991,000	2,371,584
29	Mar 21, 2026 04:57	102,276	60,665,853	34,855,000	2,987,000	2,342,912
30	Mar 21, 2026 05:01	102,286	66,545,189	35,855,000	1,991,000	2,367,488
31	Mar 21, 2026 04:53	102,305	64,160,053	35,861,000	1,992,000	2,363,392
32	Mar 21, 2026 04:53	102,311	68,879,047	35,863,000	1,992,000	2,342,912
33	Mar 21, 2026 04:58	102,316	63,309,474	34,869,000	2,988,000	2,342,912
34	Mar 21, 2026 05:01	102,319	65,178,856	36,862,000	996,000	2,342,912
35	Mar 21, 2026 04:57	102,322	64,902,322	36,863,000	996,000	2,342,912
36	Mar 21, 2026 04:49	102,327	62,937,953	34,872,000	2,989,000	2,342,912
37	Mar 21, 2026 04:56	102,327	61,403,961	35,869,000	1,992,000	2,342,912
38	Mar 21, 2026 04:53	102,332	71,464,560	34,874,000	2,989,000	2,371,584
39	Mar 21, 2026 04:59	102,335	66,550,931	35,872,000	1,992,000	2,367,488
40	Mar 21, 2026 04:51	102,454	66,041,662	34,916,000	2,992,000	2,359,296
41	Mar 21, 2026 04:57	102,484	63,836,973	34,926,000	2,993,000	2,469,888
42	Mar 21, 2026 04:54	102,484	63,052,421	35,924,000	1,995,000	2,363,392
43	Mar 21, 2026 04:50	102,516	60,478,570	34,937,000	2,994,000	2,371,584
44	Mar 21, 2026 05:01	102,522	64,483,103	34,939,000	2,994,000	2,363,392
45	Mar 21, 2026 04:55	102,530	65,411,153	36,938,000	998,000	2,375,680
46	Mar 21, 2026 04:54	102,586	62,262,362	34,961,000	2,996,000	2,334,720
47	Mar 21, 2026 04:58	102,619	65,675,925	35,971,000	1,998,000	2,494,464
48	Mar 21, 2026 04:50	102,741	61,260,061	35,013,000	3,001,000	2,326,528
49	Mar 21, 2026 04:52	102,773	69,846,065	35,024,000	3,002,000	2,375,680
50	Mar 21, 2026 05:01	102,776	60,652,421	36,026,000	2,001,000	2,338,816
51	Mar 21, 2026 05:00	102,889	59,109,403	35,064,000	3,005,000	2,342,912
52	Mar 21, 2026 04:54	102,908	66,213,059	35,070,000	3,006,000	2,342,912
53	Mar 21, 2026 05:01	103,005	69,990,864	36,107,000	2,005,000	2,342,912
54	Mar 21, 2026 04:59	103,068	70,619,045	36,128,000	2,007,000	2,367,488
55	Mar 21, 2026 04:58	103,124	64,571,878	35,144,000	3,012,000	2,379,776
56	Mar 21, 2026 04:51	103,141	61,237,117	35,150,000	3,012,000	2,342,912
57	Mar 21, 2026 04:49	103,151	63,342,148	36,158,000	2,008,000	2,326,528
58	Mar 21, 2026 04:57	103,497	59,848,544	38,294,000	0	2,330,624
59	Mar 21, 2026 05:02	103,503	65,477,102	36,281,000	2,015,000	2,342,912
60	Mar 21, 2026 04:50	104,116	67,936,312	36,496,000	2,027,000	2,375,680

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