Parse integers

Compute the sum of integers read from STDIN as fast as possible.

Input: 50 000 000 lines, each containing one integer in the range [0; 2147483647].

Output: The uint64 sum of all numbers, printed as a decimal string.

Note: Integer overflow is expected – use a 64-bit accumulator.

Restrictions:30s512Mb 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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Score: 8,046

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Oct 22, 2023 22:55	8,008	90,498,943	65,457,000	1,007,000	2,273,280
2	Oct 22, 2023 22:58	8,011	91,817,911	65,488,000	1,007,000	2,269,184
3	Oct 22, 2023 22:58	8,011	94,532,793	65,484,000	1,007,000	2,273,280
4	Oct 22, 2023 22:55	8,017	92,205,342	65,532,000	1,008,000	2,396,160
5	Oct 22, 2023 22:55	8,020	92,235,083	65,554,000	1,008,000	2,273,280
6	Oct 22, 2023 22:55	8,022	95,879,165	66,585,000	0	2,273,280
7	Oct 22, 2023 22:58	8,024	95,477,653	66,601,000	0	2,404,352
8	Oct 22, 2023 22:55	8,024	94,670,779	65,587,000	1,009,000	2,273,280
9	Oct 22, 2023 22:55	8,025	91,905,785	66,604,000	0	2,514,944
10	Oct 22, 2023 22:58	8,027	96,291,128	65,617,000	1,009,000	2,273,280
11	Oct 22, 2023 22:55	8,030	94,258,295	65,640,000	1,009,000	2,400,256
12	Oct 22, 2023 22:55	8,031	98,680,296	66,658,000	0	2,396,160
13	Oct 22, 2023 22:58	8,034	90,309,301	64,695,000	1,990,000	2,387,968
14	Oct 22, 2023 22:58	8,036	89,953,144	64,705,000	1,990,000	2,273,280
15	Oct 22, 2023 22:58	8,045	94,463,301	64,777,000	1,993,000	2,490,368
16	Oct 22, 2023 22:55	8,046	92,637,618	64,786,000	1,993,000	2,273,280
17	Oct 22, 2023 22:58	8,047	89,436,174	65,793,000	996,000	2,273,280
18	Oct 22, 2023 22:58	8,049	90,446,355	64,809,000	1,994,000	2,400,256
19	Oct 22, 2023 22:55	8,051	96,811,089	65,830,000	997,000	2,519,040
20	Oct 22, 2023 22:55	8,052	93,912,953	65,834,000	997,000	2,273,280
21	Oct 22, 2023 22:58	8,055	95,352,050	65,858,000	997,000	2,273,280
22	Oct 22, 2023 22:58	8,060	91,622,259	65,898,000	998,000	2,400,256
23	Oct 22, 2023 22:55	8,111	92,083,083	67,321,000	0	2,387,968
24	Oct 22, 2023 22:58	8,142	130,742,817	67,575,910	0	2,273,280
25	Oct 22, 2023 22:58	8,151	133,542,152	67,655,134	0	2,285,568
26	Oct 22, 2023 22:58	8,171	125,998,007	67,816,663	0	2,277,376
27	Oct 22, 2023 22:55	8,177	140,024,650	67,866,419	0	2,277,376
28	Oct 22, 2023 22:55	8,184	135,455,262	67,929,682	0	2,273,280
29	Oct 22, 2023 22:58	8,208	94,423,487	66,121,000	2,003,000	2,273,280
30	Oct 22, 2023 22:55	8,289	134,952,539	68,797,332	0	2,277,376

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