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.

Back to listSep 16, 2023 17:07

mmalczakScore: 84,168Success

Source Code

Source code access is restricted. Log in to request access.

Challenge History

No challenges yet.

Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Sep 16, 2023 17:07	82,576	54,346,530	29,535,000	1,018,000	2,273,280
2	Sep 16, 2023 17:02	82,989	60,820,061	29,683,000	1,023,000	2,289,664
3	Sep 16, 2023 19:25	83,141	56,581,281	29,737,000	1,025,000	2,289,664
4	Sep 16, 2023 17:07	83,162	54,387,362	29,778,000	992,000	2,273,280
5	Sep 16, 2023 17:02	83,351	61,698,628	29,846,000	994,000	2,289,664
6	Sep 16, 2023 17:02	83,392	60,099,612	29,860,000	995,000	2,289,664
7	Sep 18, 2023 07:08	83,405	56,470,185	29,865,000	995,000	2,289,664
8	Sep 16, 2023 19:25	83,414	57,455,850	28,872,000	1,991,000	2,289,664
9	Sep 16, 2023 19:25	83,416	57,141,517	28,873,000	1,991,000	2,277,376
10	Sep 16, 2023 17:02	83,495	56,961,549	28,900,000	1,993,000	2,277,376
11	Sep 18, 2023 07:08	83,589	58,986,590	28,933,000	1,995,000	2,281,472
12	Sep 16, 2023 17:07	83,595	53,564,253	28,935,000	1,995,000	2,289,664
13	Sep 16, 2023 17:07	83,700	53,626,488	28,971,000	1,998,000	2,289,664
14	Sep 16, 2023 17:02	83,811	52,124,568	29,010,000	2,000,000	2,277,376
15	Sep 18, 2023 07:08	83,832	55,473,699	30,018,000	1,000,000	2,289,664
16	Sep 16, 2023 19:25	83,843	54,170,946	29,021,000	2,001,000	2,527,232
17	Sep 18, 2023 07:08	83,927	55,037,432	29,050,000	2,003,000	2,289,664
18	Sep 16, 2023 19:25	83,973	53,895,462	29,066,000	2,004,000	2,371,584
19	Sep 18, 2023 07:08	83,978	54,965,345	29,068,000	2,004,000	2,289,664
20	Sep 16, 2023 19:25	84,022	60,101,721	30,086,000	1,002,000	2,527,232
21	Sep 16, 2023 17:07	84,027	57,899,803	30,088,000	1,002,000	2,289,664
22	Sep 18, 2023 07:08	84,100	54,864,858	29,110,000	2,007,000	2,269,184
23	Sep 16, 2023 17:02	84,100	59,599,059	29,110,000	2,007,000	2,289,664
24	Sep 16, 2023 17:02	84,130	55,008,331	29,120,000	2,008,000	2,289,664
25	Sep 16, 2023 17:02	84,168	51,972,157	29,133,000	2,009,000	2,392,064
26	Sep 16, 2023 19:25	84,214	57,438,925	29,149,000	2,010,000	2,273,280
27	Sep 18, 2023 07:08	84,238	58,729,277	29,158,000	2,010,000	2,273,280
28	Sep 16, 2023 19:25	84,268	59,131,348	29,168,000	2,011,000	2,289,664
29	Sep 16, 2023 17:07	84,314	54,402,475	29,184,000	2,012,000	2,277,376
30	Sep 18, 2023 07:08	84,397	59,445,454	29,213,000	2,014,000	2,281,472
31	Sep 16, 2023 17:07	84,476	54,762,636	30,248,000	1,008,000	2,277,376
32	Sep 16, 2023 19:25	84,532	56,998,757	29,260,000	2,017,000	2,289,664
33	Sep 16, 2023 17:07	84,657	55,034,252	29,303,000	2,020,000	2,289,664
34	Sep 16, 2023 17:02	84,659	54,972,284	29,304,000	2,020,000	2,289,664
35	Sep 16, 2023 17:07	84,746	54,975,466	29,333,000	2,023,000	2,359,296
36	Sep 18, 2023 07:08	84,827	55,394,912	30,374,000	1,012,000	2,273,280
37	Sep 16, 2023 19:25	85,399	93,092,160	31,597,814	0	2,273,280
38	Sep 18, 2023 07:08	85,436	116,078,004	31,611,487	0	2,269,184
39	Sep 16, 2023 17:02	85,490	116,301,661	31,631,365	0	2,273,280
40	Sep 16, 2023 17:02	85,592	94,832,385	31,668,866	0	2,269,184
41	Sep 16, 2023 19:25	85,992	101,156,634	31,817,116	0	2,269,184
42	Sep 18, 2023 07:08	85,998	92,794,165	31,819,413	0	2,265,088
43	Sep 16, 2023 17:07	86,046	106,052,696	31,837,039	0	2,273,280
44	Sep 16, 2023 17:02	86,119	93,274,217	31,864,094	0	2,265,088
45	Sep 16, 2023 17:07	86,272	101,243,336	31,920,637	0	2,273,280
46	Sep 16, 2023 19:25	86,458	97,277,407	31,989,364	0	2,256,896
47	Sep 16, 2023 17:07	86,798	98,749,958	32,115,398	0	2,252,800
48	Sep 18, 2023 07:08	86,900	91,714,402	32,153,137	0	2,260,992

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