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 listJan 17, 2026 05:00

Josu San MartinScore: 68,397Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jan 17, 2026 05:02	67,741	48,524,870	24,062,000	1,002,000	2,277,376
2	Jan 17, 2026 05:02	67,824	48,493,702	24,092,000	1,003,000	2,371,584
3	Jan 17, 2026 04:51	67,827	49,685,745	23,089,000	2,007,000	2,277,376
4	Jan 17, 2026 05:02	67,838	49,283,988	24,096,000	1,004,000	2,277,376
5	Jan 17, 2026 04:53	67,854	45,981,888	24,102,000	1,004,000	2,277,376
6	Jan 17, 2026 05:02	67,857	48,031,548	24,103,000	1,004,000	2,383,872
7	Jan 17, 2026 04:53	67,862	49,600,953	23,101,000	2,008,000	2,379,776
8	Jan 17, 2026 05:02	67,865	45,901,555	23,102,000	2,008,000	2,392,064
9	Jan 17, 2026 04:53	67,892	49,657,514	23,111,000	2,009,000	2,387,968
10	Jan 28, 2026 01:06	67,914	46,520,344	24,123,000	1,005,000	2,379,776
11	Jan 17, 2026 05:02	67,938	48,736,354	23,126,000	2,011,000	2,277,376
12	Jan 17, 2026 04:53	68,003	53,076,324	24,155,000	1,006,000	2,502,656
13	Jan 17, 2026 04:53	68,008	49,449,762	24,157,000	1,006,000	2,277,376
14	Jan 17, 2026 05:01	68,041	47,356,036	24,168,000	1,007,000	2,383,872
15	Jan 17, 2026 05:02	68,068	45,438,064	24,178,000	1,007,000	2,383,872
16	Jan 17, 2026 04:53	68,078	49,153,504	23,174,000	2,015,000	2,387,968
17	Jan 17, 2026 05:02	68,081	51,185,519	23,175,000	2,015,000	2,387,968
18	Jan 17, 2026 04:51	68,081	47,425,196	24,183,000	1,007,000	2,277,376
19	Jan 17, 2026 05:02	68,086	50,084,173	24,185,000	1,007,000	2,277,376
20	Jan 17, 2026 05:02	68,086	48,143,922	24,185,000	1,007,000	2,277,376
21	Jan 17, 2026 04:53	68,092	51,275,646	24,187,000	1,007,000	2,277,376
22	Jan 17, 2026 04:53	68,103	46,829,327	23,183,000	2,015,000	2,387,968
23	Jan 17, 2026 04:51	68,108	49,237,409	23,184,000	2,016,000	2,277,376
24	Jan 17, 2026 05:02	68,116	52,732,445	23,187,000	2,016,000	2,277,376
25	Jan 17, 2026 05:02	68,124	48,218,364	23,190,000	2,016,000	2,383,872
26	Jan 17, 2026 05:01	68,127	46,276,617	23,191,000	2,016,000	2,387,968
27	Jan 17, 2026 05:02	68,141	46,361,428	23,195,000	2,017,000	2,383,872
28	Jan 17, 2026 04:53	68,159	45,270,973	24,211,000	1,008,000	2,383,872
29	Jan 28, 2026 01:07	68,162	48,316,012	24,212,000	1,008,000	2,506,752
30	Jan 17, 2026 05:01	68,168	46,101,094	23,205,000	2,017,000	2,379,776
31	Jan 17, 2026 04:53	68,197	45,142,140	23,215,000	2,018,000	2,523,136
32	Jan 17, 2026 04:53	68,214	50,613,492	23,220,000	2,019,000	2,277,376
33	Jan 17, 2026 05:02	68,216	47,650,207	23,221,000	2,019,000	2,392,064
34	Jan 17, 2026 04:53	68,278	47,482,156	24,253,000	1,010,000	2,387,968
35	Jan 28, 2026 01:07	68,297	47,674,532	24,260,000	1,010,000	2,277,376
36	Jan 17, 2026 04:51	68,300	47,895,424	23,250,000	2,021,000	2,383,872
37	Jan 17, 2026 05:01	68,316	48,264,815	24,266,000	1,011,000	2,277,376
38	Jan 17, 2026 05:02	68,327	47,646,107	23,259,000	2,022,000	2,277,376
39	Jan 17, 2026 05:02	68,392	48,221,912	24,293,000	1,012,000	2,277,376
40	Jan 28, 2026 01:07	68,397	55,408,478	23,283,000	2,024,000	2,387,968
41	Jan 17, 2026 04:53	68,424	51,632,998	24,305,000	1,012,000	2,277,376
42	Jan 28, 2026 01:06	68,430	49,115,749	24,307,000	1,012,000	2,375,680
43	Jan 17, 2026 04:53	68,432	54,202,605	24,308,000	1,012,000	2,277,376
44	Jan 17, 2026 04:53	68,435	44,547,266	24,309,000	1,012,000	2,379,776
45	Jan 17, 2026 05:02	68,486	51,329,628	24,327,000	1,013,000	2,387,968
46	Jan 17, 2026 05:02	68,492	50,046,896	24,329,000	1,013,000	2,277,376
47	Jan 17, 2026 05:02	68,497	48,911,281	25,344,000	0	2,277,376
48	Jan 17, 2026 04:51	68,508	48,753,336	24,335,000	1,013,000	2,277,376
49	Jan 17, 2026 05:00	68,514	46,545,464	25,350,000	0	2,379,776
50	Jan 17, 2026 05:02	68,516	50,736,332	24,337,000	1,014,000	2,277,376
51	Jan 17, 2026 04:53	68,519	48,799,423	25,352,000	0	2,387,968
52	Jan 17, 2026 05:01	68,522	51,692,262	24,339,000	1,014,000	2,277,376
53	Jan 17, 2026 05:02	68,532	53,098,648	25,357,000	0	2,400,256
54	Jan 17, 2026 05:02	68,543	47,700,050	25,361,000	0	2,367,488
55	Jan 17, 2026 04:53	68,546	47,505,513	25,362,000	0	2,379,776
56	Jan 17, 2026 04:53	68,549	48,482,884	25,363,000	0	2,392,064
57	Jan 17, 2026 05:00	68,551	47,755,825	25,364,000	0	2,277,376
58	Jan 17, 2026 04:51	68,562	46,951,946	25,368,000	0	2,375,680
59	Jan 17, 2026 05:01	68,573	46,224,570	25,372,000	0	2,277,376
60	Jan 17, 2026 05:02	68,605	55,615,088	25,384,000	0	2,387,968
61	Jan 17, 2026 05:00	68,619	48,275,830	24,374,000	1,015,000	2,277,376
62	Jan 17, 2026 05:01	68,622	54,687,501	25,390,000	0	2,277,376
63	Jan 17, 2026 05:02	68,651	48,049,731	24,385,000	1,016,000	2,383,872
64	Jan 17, 2026 05:01	68,659	48,195,399	25,404,000	0	2,379,776
65	Jan 17, 2026 05:01	68,659	48,469,287	24,388,000	1,016,000	2,277,376
66	Jan 28, 2026 01:06	68,681	46,343,822	24,396,000	1,016,000	2,277,376
67	Jan 17, 2026 05:01	68,765	49,213,359	24,426,000	1,017,000	2,277,376
68	Jan 17, 2026 05:01	68,784	48,566,321	25,450,000	0	2,383,872
69	Jan 17, 2026 05:00	68,797	47,234,904	25,455,000	0	2,502,656
70	Jan 17, 2026 05:00	68,803	49,610,504	25,457,000	0	2,379,776
71	Jan 17, 2026 05:01	68,808	47,412,714	24,441,000	1,018,000	2,383,872
72	Jan 17, 2026 05:00	68,832	52,910,833	24,450,000	1,018,000	2,277,376
73	Jan 17, 2026 05:01	68,857	52,426,880	25,477,000	0	2,277,376
74	Jan 17, 2026 05:01	68,895	50,681,028	24,472,000	1,019,000	2,277,376
75	Jan 17, 2026 05:00	68,957	45,968,046	24,494,000	1,020,000	2,379,776
76	Jan 17, 2026 05:00	69,111	47,457,289	25,571,000	0	2,277,376
77	Jan 17, 2026 05:00	69,208	51,696,482	24,583,000	1,024,000	2,277,376
78	Jan 17, 2026 05:01	70,300	51,072,466	24,011,000	2,000,000	2,277,376

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