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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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory	Error
1	Sep 19, 2023 08:50	0	0	0	0	0	Error: expected "429496519793 ", got "429496519658 "
2	Sep 19, 2023 08:51	82,546	59,128,485	30,542,000	0	2,273,280
3	Sep 21, 2023 15:32	82,635	56,561,098	29,556,000	1,019,000	2,289,664
4	Sep 18, 2023 12:58	82,668	58,758,934	30,587,000	0	2,289,664
5	Sep 21, 2023 15:32	82,792	56,688,629	29,612,000	1,021,000	2,273,280
6	Sep 20, 2023 16:28	82,803	61,896,440	29,616,000	1,021,000	2,289,664
7	Sep 19, 2023 08:09	82,849	56,477,563	29,633,000	1,021,000	2,277,376
8	Sep 18, 2023 12:58	82,892	57,158,190	29,648,000	1,022,000	2,269,184
9	Sep 21, 2023 18:26	82,965	60,156,046	29,674,000	1,023,000	2,277,376
10	Sep 18, 2023 12:58	83,241	55,352,471	29,806,000	993,000	2,277,376
11	Sep 21, 2023 18:26	83,308	57,087,217	29,830,000	994,000	2,273,280
12	Sep 21, 2023 15:32	83,335	57,848,938	29,840,000	994,000	2,289,664
13	Sep 19, 2023 08:09	83,338	59,623,371	28,846,000	1,989,000	2,289,664
14	Sep 18, 2023 12:58	83,376	57,192,906	28,859,000	1,990,000	2,527,232
15	Sep 19, 2023 08:09	83,378	58,560,859	28,860,000	1,990,000	2,277,376
16	Sep 21, 2023 15:32	83,389	57,040,784	28,864,000	1,990,000	2,269,184
17	Sep 19, 2023 08:51	83,389	60,946,618	29,859,000	995,000	2,289,664
18	Sep 19, 2023 08:51	83,397	56,358,227	29,862,000	995,000	2,289,664
19	Sep 20, 2023 16:28	83,427	56,137,493	30,868,000	0	2,273,280
20	Sep 18, 2023 12:58	83,432	59,532,325	28,879,000	1,991,000	2,527,232
21	Sep 21, 2023 18:26	83,438	58,921,263	28,881,000	1,991,000	2,273,280
22	Sep 19, 2023 08:51	83,438	56,585,595	28,881,000	1,991,000	2,273,280
23	Sep 21, 2023 18:26	83,473	54,035,537	28,893,000	1,992,000	2,273,280
24	Sep 21, 2023 15:32	83,495	52,144,160	28,900,000	1,993,000	2,404,352
25	Sep 21, 2023 18:26	83,511	50,365,017	28,906,000	1,993,000	2,289,664
26	Sep 20, 2023 16:28	83,516	53,965,886	28,908,000	1,993,000	2,273,280
27	Sep 19, 2023 08:51	83,519	57,428,812	28,909,000	1,993,000	2,289,664
28	Sep 20, 2023 16:28	83,562	63,027,487	29,921,000	997,000	2,289,664
29	Sep 19, 2023 08:09	83,622	54,917,571	29,942,000	998,000	2,273,280
30	Sep 20, 2023 16:28	83,622	52,415,520	28,944,000	1,996,000	2,281,472
31	Sep 19, 2023 08:09	83,651	55,895,733	28,955,000	1,996,000	2,273,280
32	Sep 19, 2023 08:09	83,681	55,069,944	29,964,000	998,000	2,277,376
33	Sep 19, 2023 08:09	83,784	53,758,130	29,000,000	2,000,000	2,273,280
34	Sep 18, 2023 12:58	83,792	56,275,947	29,003,000	2,000,000	2,289,664
35	Sep 18, 2023 12:58	83,816	53,859,424	29,012,000	2,000,000	2,392,064
36	Sep 19, 2023 08:09	83,822	55,364,552	30,014,000	1,000,000	2,269,184
37	Sep 19, 2023 08:51	83,822	57,482,623	30,014,000	1,000,000	2,289,664
38	Sep 21, 2023 18:26	83,827	58,283,372	30,016,000	1,000,000	2,289,664
39	Sep 21, 2023 15:32	83,868	57,585,453	30,030,000	1,001,000	2,289,664
40	Sep 20, 2023 16:28	83,873	57,279,459	29,031,000	2,002,000	2,531,328
41	Sep 21, 2023 18:26	83,914	54,335,223	30,047,000	1,001,000	2,289,664
42	Sep 20, 2023 16:28	83,995	63,156,646	29,073,000	2,005,000	2,289,664
43	Sep 21, 2023 18:26	84,000	54,964,243	29,075,000	2,005,000	2,289,664
44	Sep 18, 2023 12:58	84,035	52,619,473	29,087,000	2,006,000	2,289,664
45	Sep 21, 2023 15:32	84,041	52,718,116	29,089,000	2,006,000	2,269,184
46	Sep 19, 2023 08:51	84,081	58,038,248	29,103,000	2,007,000	2,281,472
47	Sep 21, 2023 15:32	84,176	52,879,768	29,136,000	2,009,000	2,289,664
48	Sep 19, 2023 08:51	84,257	55,014,882	29,164,000	2,011,000	2,531,328
49	Sep 20, 2023 16:28	84,292	52,358,196	29,176,000	2,012,000	2,289,664
50	Sep 21, 2023 18:26	84,346	55,460,393	29,195,000	2,013,000	2,273,280
51	Sep 21, 2023 15:32	84,489	52,350,752	29,245,000	2,016,000	2,289,664
52	Sep 19, 2023 08:09	84,668	52,867,161	30,317,000	1,010,000	2,289,664
53	Sep 20, 2023 16:28	84,868	54,296,074	27,350,000	4,051,000	2,281,472
54	Sep 18, 2023 12:58	84,935	50,981,720	30,413,000	1,013,000	2,265,088
55	Sep 19, 2023 08:51	85,027	54,677,282	30,446,000	1,014,000	2,289,664
56	Sep 19, 2023 08:51	85,252	107,393,998	31,543,388	0	2,260,992
57	Sep 19, 2023 08:09	85,306	93,819,821	31,563,127	0	2,265,088
58	Sep 19, 2023 08:51	85,571	87,750,774	31,661,085	0	2,273,280
59	Sep 18, 2023 12:58	85,588	104,026,220	31,667,406	0	2,260,992
60	Sep 19, 2023 08:09	85,635	92,687,565	31,684,891	0	2,260,992
61	Sep 20, 2023 16:28	85,662	98,224,347	31,694,852	0	2,256,896
62	Sep 18, 2023 12:58	85,687	123,447,772	31,704,293	0	2,273,280
63	Sep 21, 2023 15:32	85,689	96,750,969	31,704,761	0	2,260,992
64	Sep 21, 2023 18:26	85,703	93,144,537	31,709,988	0	2,252,800
65	Sep 19, 2023 08:51	85,774	106,490,971	31,736,301	0	2,265,088
66	Sep 19, 2023 08:51	85,888	105,241,463	31,778,529	0	2,269,184
67	Sep 21, 2023 18:26	85,951	95,735,415	31,802,007	0	2,260,992
68	Sep 20, 2023 16:28	86,201	93,703,977	31,894,352	0	2,273,280
69	Sep 18, 2023 12:58	86,226	107,169,682	31,903,650	0	2,273,280
70	Sep 19, 2023 08:09	86,286	109,522,923	31,925,809	0	2,260,992
71	Sep 21, 2023 15:32	86,378	124,727,295	31,959,764	0	2,269,184
72	Sep 21, 2023 15:32	86,554	100,016,201	32,024,979	0	2,260,992
73	Sep 19, 2023 08:51	86,556	101,960,425	32,025,775	0	2,269,184
74	Sep 20, 2023 16:28	86,586	100,308,214	32,036,712	0	2,256,896
75	Sep 19, 2023 08:51	86,957	103,309,354	32,174,181	0	2,273,280
76	Sep 21, 2023 18:26	87,163	97,700,951	32,250,485	0	2,269,184

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