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: 102,322Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Mar 21, 2026 02:32	100,668	61,696,509	35,234,000	2,013,000	2,342,912
2	Mar 21, 2026 02:44	100,935	61,360,984	35,328,000	2,018,000	2,342,912
3	Mar 21, 2026 02:40	100,968	67,880,856	35,339,000	2,019,000	2,342,912
4	Mar 21, 2026 02:29	101,178	66,936,075	34,401,000	3,035,000	2,379,776
5	Mar 21, 2026 02:35	101,205	61,396,797	34,410,000	3,036,000	2,334,720
6	Mar 21, 2026 02:34	101,208	57,491,619	34,411,000	3,036,000	2,383,872
7	Mar 21, 2026 02:43	101,289	59,676,763	35,452,000	2,025,000	2,375,680
8	Mar 21, 2026 02:35	101,314	62,803,657	35,460,000	2,026,000	2,367,488
9	Mar 21, 2026 02:37	101,354	60,436,632	35,474,000	2,027,000	2,367,488
10	Mar 21, 2026 02:39	101,459	58,622,895	36,526,000	1,014,000	2,375,680
11	Mar 21, 2026 02:45	101,554	59,423,674	36,560,000	1,015,000	2,342,912
12	Mar 21, 2026 02:36	101,559	67,524,644	36,562,000	1,015,000	2,371,584
13	Mar 21, 2026 02:39	101,568	62,172,915	36,565,000	1,015,000	2,371,584
14	Mar 21, 2026 02:42	101,632	66,869,492	35,572,000	2,032,000	2,375,680
15	Mar 21, 2026 02:30	101,665	66,102,411	35,583,000	2,033,000	2,375,680
16	Mar 21, 2026 02:33	101,673	65,145,242	36,603,000	1,016,000	2,502,656
17	Mar 21, 2026 02:31	101,714	64,296,588	35,600,000	2,034,000	2,342,912
18	Mar 21, 2026 02:41	101,784	63,894,328	36,643,000	1,017,000	2,379,776
19	Mar 21, 2026 02:32	101,803	63,399,679	35,631,000	2,036,000	2,342,912
20	Mar 21, 2026 02:33	101,865	68,227,312	36,672,000	1,018,000	2,371,584
21	Mar 21, 2026 02:43	101,878	62,440,809	35,658,000	2,037,000	2,342,912
22	Mar 21, 2026 02:37	102,203	67,739,717	35,825,000	1,990,000	2,379,776
23	Mar 21, 2026 02:31	102,205	60,283,169	34,831,000	2,985,000	2,342,912
24	Mar 21, 2026 02:45	102,243	65,929,936	36,835,000	995,000	2,383,872
25	Mar 21, 2026 02:40	102,246	66,019,531	35,840,000	1,991,000	2,342,912
26	Mar 21, 2026 02:35	102,281	63,374,130	35,853,000	1,991,000	2,330,624
27	Mar 21, 2026 02:34	102,286	67,816,075	36,851,000	995,000	2,342,912
28	Mar 21, 2026 02:30	102,286	64,396,513	35,855,000	1,991,000	2,383,872
29	Mar 21, 2026 02:35	102,292	62,639,511	35,856,000	1,992,000	2,375,680
30	Mar 21, 2026 02:30	102,300	63,503,178	36,855,000	996,000	2,375,680
31	Mar 21, 2026 02:37	102,322	61,114,351	35,867,000	1,992,000	2,342,912
32	Mar 21, 2026 02:44	102,338	66,546,807	35,873,000	1,992,000	2,334,720
33	Mar 21, 2026 02:41	102,341	66,573,630	34,877,000	2,989,000	2,342,912
34	Mar 21, 2026 02:40	102,341	64,978,216	34,877,000	2,989,000	2,342,912
35	Mar 21, 2026 02:38	102,400	70,108,414	35,894,000	1,994,000	2,367,488
36	Mar 21, 2026 02:37	102,419	65,886,919	36,871,000	1,024,000	2,367,488
37	Mar 21, 2026 02:35	102,435	68,936,919	35,907,000	1,994,000	2,359,296
38	Mar 21, 2026 02:40	102,462	68,013,495	35,916,000	1,995,000	2,342,912
39	Mar 21, 2026 02:31	102,589	65,730,332	34,962,000	2,996,000	2,342,912
40	Mar 21, 2026 02:29	102,608	64,788,059	35,967,000	1,998,000	2,342,912
41	Mar 21, 2026 02:44	102,611	68,044,802	35,968,000	1,998,000	2,494,464
42	Mar 21, 2026 02:38	102,619	70,969,259	35,971,000	1,998,000	2,326,528
43	Mar 21, 2026 02:40	102,662	64,371,970	34,987,000	2,998,000	2,375,680
44	Mar 21, 2026 02:38	102,689	71,707,027	35,996,000	1,999,000	2,342,912
45	Mar 21, 2026 02:42	102,727	66,477,231	36,009,000	2,000,000	2,342,912
46	Mar 21, 2026 02:33	102,773	66,683,183	35,024,000	3,002,000	2,342,912
47	Mar 21, 2026 02:37	102,792	63,682,551	35,031,000	3,002,000	2,359,296
48	Mar 21, 2026 02:35	102,965	63,853,751	36,092,000	2,005,000	2,367,488
49	Mar 21, 2026 02:37	102,970	67,682,212	35,092,000	3,007,000	2,342,912
50	Mar 21, 2026 02:43	102,984	65,934,966	36,099,000	2,005,000	2,342,912
51	Mar 21, 2026 02:36	103,105	58,634,770	36,142,000	2,007,000	2,342,912
52	Mar 21, 2026 02:34	103,114	68,735,145	36,144,000	2,008,000	2,498,560
53	Mar 21, 2026 02:45	103,195	66,774,717	36,173,000	2,009,000	2,375,680
54	Mar 21, 2026 02:29	103,227	66,572,984	35,179,000	3,015,000	2,486,272
55	Mar 21, 2026 02:41	103,232	67,842,324	35,181,000	3,015,000	2,342,912
56	Mar 21, 2026 02:32	103,314	60,943,428	35,209,000	3,017,000	2,342,912
57	Mar 21, 2026 02:42	103,335	68,351,037	35,216,000	3,018,000	2,342,912
58	Mar 21, 2026 02:40	103,335	62,073,225	35,216,000	3,018,000	2,342,912
59	Mar 21, 2026 02:36	103,422	62,425,191	35,245,000	3,021,000	2,342,912
60	Mar 21, 2026 02:39	104,365	62,046,434	36,583,000	2,032,000	2,371,584

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