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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mmalczakScore: 126,949Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Sep 16, 2023 11:43	99,236	101,290,364	36,717,312	0	2,273,280
2	Sep 16, 2023 15:46	99,333	127,674,179	36,753,194	0	2,252,800
3	Sep 16, 2023 11:53	99,372	95,518,648	36,767,538	0	2,265,088
4	Sep 16, 2023 12:07	99,437	100,320,742	36,791,550	0	2,265,088
5	Sep 16, 2023 11:53	99,524	100,891,809	36,823,990	0	2,260,992
6	Sep 16, 2023 11:43	99,718	106,344,460	36,895,584	0	2,260,992
7	Sep 16, 2023 12:07	99,877	106,975,077	36,954,393	0	2,269,184
8	Sep 16, 2023 15:46	100,193	117,171,981	37,071,502	0	2,269,184
9	Sep 16, 2023 11:43	100,264	122,504,498	37,097,537	0	2,256,896
10	Sep 16, 2023 11:53	100,548	73,808,239	37,202,850	0	2,260,992
11	Sep 16, 2023 15:46	100,682	108,771,425	37,252,515	0	2,260,992
12	Sep 16, 2023 12:07	101,299	102,568,908	37,480,491	0	2,273,280
13	Sep 16, 2023 11:43	125,695	70,168,307	45,496,000	1,011,000	2,289,664
14	Sep 16, 2023 11:53	125,759	75,151,957	45,520,000	1,011,000	2,277,376
15	Sep 16, 2023 11:53	125,797	69,569,162	45,534,000	1,011,000	2,523,136
16	Sep 16, 2023 12:07	126,486	74,639,673	44,809,000	1,991,000	2,269,184
17	Sep 16, 2023 15:46	126,600	73,676,860	44,849,000	1,993,000	2,289,664
18	Sep 16, 2023 11:53	126,622	76,330,992	44,857,000	1,993,000	2,531,328
19	Sep 16, 2023 12:07	126,624	74,482,822	45,855,000	996,000	2,289,664
20	Sep 16, 2023 11:43	126,684	70,650,468	45,876,000	997,000	2,289,664
21	Sep 16, 2023 12:07	126,751	72,973,794	44,903,000	1,995,000	2,289,664
22	Sep 16, 2023 15:46	126,757	74,422,486	44,905,000	1,995,000	2,289,664
23	Sep 16, 2023 11:53	126,830	69,754,175	45,929,000	998,000	2,289,664
24	Sep 16, 2023 11:43	126,919	68,452,397	44,962,000	1,998,000	2,285,568
25	Sep 16, 2023 12:07	126,949	70,180,371	44,973,000	1,998,000	2,289,664
26	Sep 16, 2023 15:46	126,981	69,727,458	44,984,000	1,999,000	2,273,280
27	Sep 16, 2023 11:53	126,995	74,249,806	44,989,000	1,999,000	2,289,664
28	Sep 16, 2023 12:07	127,008	70,799,625	44,994,000	1,999,000	2,289,664
29	Sep 16, 2023 11:43	127,027	73,275,099	45,000,000	2,000,000	2,289,664
30	Sep 16, 2023 15:46	127,027	72,442,805	45,000,000	2,000,000	2,277,376
31	Sep 16, 2023 12:07	127,059	74,819,381	45,012,000	2,000,000	2,277,376
32	Sep 16, 2023 11:43	127,162	80,105,839	45,048,000	2,002,000	2,527,232
33	Sep 16, 2023 15:46	127,200	71,699,828	45,062,000	2,002,000	2,273,280
34	Sep 16, 2023 11:43	127,224	72,486,374	45,070,000	2,003,000	2,289,664
35	Sep 16, 2023 15:46	127,254	74,426,949	45,081,000	2,003,000	2,289,664
36	Sep 16, 2023 12:07	127,281	69,254,102	45,090,000	2,004,000	2,383,872
37	Sep 16, 2023 11:43	127,300	70,776,184	45,097,000	2,004,000	2,527,232
38	Sep 16, 2023 11:53	127,311	69,956,013	45,101,000	2,004,000	2,289,664
39	Sep 16, 2023 12:07	127,324	69,994,037	45,106,000	2,004,000	2,289,664
40	Sep 16, 2023 15:46	127,330	69,575,311	46,110,000	1,002,000	2,289,664
41	Sep 16, 2023 12:07	127,400	74,436,942	45,133,000	2,005,000	2,289,664
42	Sep 16, 2023 11:43	127,419	72,196,296	45,139,000	2,006,000	2,289,664
43	Sep 16, 2023 11:53	127,457	80,583,718	46,156,000	1,003,000	2,273,280
44	Sep 16, 2023 11:43	127,538	69,884,039	45,181,000	2,008,000	2,281,472
45	Sep 16, 2023 11:53	127,643	73,992,999	46,224,000	1,004,000	2,289,664
46	Sep 16, 2023 11:53	127,968	73,569,903	46,341,000	1,007,000	2,289,664
47	Sep 16, 2023 15:46	128,005	72,334,973	45,347,000	2,015,000	2,289,664
48	Sep 16, 2023 15:46	128,146	71,016,662	45,397,000	2,017,000	2,531,328

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