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: 102,311Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Mar 21, 2026 04:40	100,719	59,374,784	35,252,000	2,014,000	2,338,816
2	Mar 21, 2026 04:38	100,741	63,608,909	34,252,000	3,022,000	2,371,584
3	Mar 21, 2026 04:40	100,859	63,494,819	35,301,000	2,017,000	2,330,624
4	Mar 21, 2026 04:32	101,014	61,815,402	35,355,000	2,020,000	2,342,912
5	Mar 21, 2026 04:35	101,078	61,280,215	35,378,000	2,021,000	2,342,912
6	Mar 21, 2026 04:35	101,105	61,210,012	35,387,000	2,022,000	2,342,912
7	Mar 21, 2026 04:43	101,181	63,071,975	35,414,000	2,023,000	2,342,912
8	Mar 21, 2026 04:41	101,238	64,397,703	36,446,000	1,012,000	2,342,912
9	Mar 21, 2026 04:38	101,386	63,581,902	36,500,000	1,013,000	2,342,912
10	Mar 21, 2026 04:33	101,511	63,832,651	35,529,000	2,030,000	2,322,432
11	Mar 21, 2026 04:41	101,646	67,771,191	36,593,000	1,016,000	2,342,912
12	Mar 21, 2026 04:38	101,651	63,283,428	35,578,000	2,033,000	2,379,776
13	Mar 21, 2026 04:33	101,684	65,086,792	35,590,000	2,033,000	2,342,912
14	Mar 21, 2026 04:28	101,738	68,426,211	35,609,000	2,034,000	2,342,912
15	Mar 21, 2026 04:29	101,757	64,723,172	35,615,000	2,035,000	2,367,488
16	Mar 21, 2026 04:43	101,814	64,182,333	36,653,000	1,018,000	2,379,776
17	Mar 21, 2026 04:30	101,832	66,007,133	36,660,000	1,018,000	2,342,912
18	Mar 21, 2026 04:42	101,838	62,666,619	36,662,000	1,018,000	2,342,912
19	Mar 21, 2026 04:35	101,962	62,526,368	34,748,000	2,978,000	2,371,584
20	Mar 21, 2026 04:37	102,173	70,757,214	35,815,000	1,989,000	2,367,488
21	Mar 21, 2026 04:36	102,189	71,830,685	35,767,000	2,043,000	2,342,912
22	Mar 21, 2026 04:32	102,203	63,452,432	34,830,000	2,985,000	2,379,776
23	Mar 21, 2026 04:38	102,222	63,880,978	35,778,000	2,044,000	2,342,912
24	Mar 21, 2026 04:30	102,257	62,012,853	35,844,000	1,991,000	2,494,464
25	Mar 21, 2026 04:29	102,284	65,609,673	35,854,000	1,991,000	2,330,624
26	Mar 21, 2026 04:39	102,286	64,251,267	36,851,000	995,000	2,342,912
27	Mar 21, 2026 04:29	102,297	69,807,889	34,862,000	2,988,000	2,342,912
28	Mar 21, 2026 04:36	102,303	60,531,308	34,864,000	2,988,000	2,367,488
29	Mar 21, 2026 04:29	102,311	69,633,219	35,863,000	1,992,000	2,342,912
30	Mar 21, 2026 04:35	102,349	63,770,154	35,876,000	1,993,000	2,342,912
31	Mar 21, 2026 04:39	102,370	63,312,079	35,884,000	1,993,000	2,334,720
32	Mar 21, 2026 04:43	102,457	66,377,314	35,914,000	1,995,000	2,367,488
33	Mar 21, 2026 04:40	102,465	62,288,672	35,917,000	1,995,000	2,359,296
34	Mar 21, 2026 04:35	102,473	65,608,868	34,922,000	2,993,000	2,367,488
35	Mar 21, 2026 04:37	102,476	65,376,179	35,921,000	1,995,000	2,363,392
36	Mar 21, 2026 04:41	102,505	67,977,636	34,933,000	2,994,000	2,379,776
37	Mar 21, 2026 04:43	102,522	67,206,663	35,937,000	1,996,000	2,367,488
38	Mar 21, 2026 04:42	102,522	66,373,304	35,937,000	1,996,000	2,371,584
39	Mar 21, 2026 04:39	102,541	68,398,651	34,945,000	2,995,000	2,342,912
40	Mar 21, 2026 04:28	102,614	63,844,052	34,970,000	2,997,000	2,367,488
41	Mar 21, 2026 04:28	102,657	64,348,062	35,984,000	1,999,000	2,367,488
42	Mar 21, 2026 04:40	102,668	64,460,351	35,988,000	1,999,000	2,363,392
43	Mar 21, 2026 04:32	102,670	66,660,866	34,989,000	2,999,000	2,367,488
44	Mar 21, 2026 04:43	102,732	67,296,340	36,011,000	2,000,000	2,342,912
45	Mar 21, 2026 04:37	102,808	67,799,202	36,037,000	2,002,000	2,334,720
46	Mar 21, 2026 04:38	102,876	70,356,270	36,061,000	2,003,000	2,449,408
47	Mar 21, 2026 04:42	102,914	64,810,238	36,074,000	2,004,000	2,375,680
48	Mar 21, 2026 04:40	102,919	65,607,719	35,074,000	3,006,000	2,342,912
49	Mar 21, 2026 04:33	102,981	60,690,577	37,074,000	1,029,000	2,326,528
50	Mar 21, 2026 04:35	103,059	66,835,901	35,122,000	3,010,000	2,342,912
51	Mar 21, 2026 04:43	103,086	67,281,229	35,131,000	3,011,000	2,342,912
52	Mar 21, 2026 04:36	103,424	61,974,959	35,246,000	3,021,000	2,330,624
53	Mar 21, 2026 04:38	103,489	61,919,201	35,268,000	3,023,000	2,342,912
54	Mar 21, 2026 04:29	103,535	60,486,707	35,284,000	3,024,000	2,379,776
55	Mar 21, 2026 04:29	103,541	61,084,505	35,286,000	3,024,000	2,371,584
56	Mar 21, 2026 04:30	103,586	66,100,176	36,310,000	2,017,000	2,334,720
57	Mar 21, 2026 04:40	105,997	64,703,674	34,191,000	5,028,000	2,342,912

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