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: 8,048

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Nov 5, 2023 23:50	8,002	90,137,749	65,409,000	1,006,000	2,273,280
2	Oct 22, 2023 23:40	8,008	88,467,792	66,467,000	0	2,404,352
3	Oct 22, 2023 23:40	8,017	94,233,469	65,535,000	1,008,000	2,396,160
4	Nov 5, 2023 23:50	8,017	94,639,809	66,545,000	0	2,273,280
5	Oct 22, 2023 23:40	8,019	89,551,124	65,562,000	993,000	2,273,280
6	Nov 5, 2023 23:50	8,020	93,789,511	65,554,000	1,008,000	2,273,280
7	Oct 22, 2023 23:40	8,022	97,056,049	65,575,000	1,008,000	2,273,280
8	Nov 5, 2023 23:50	8,026	92,812,072	65,604,000	1,009,000	2,273,280
9	Oct 22, 2023 23:40	8,029	98,873,738	66,644,000	0	2,273,280
10	Oct 22, 2023 23:40	8,031	98,102,556	65,645,000	1,009,000	2,396,160
11	Nov 5, 2023 23:50	8,034	92,813,437	65,669,000	1,010,000	2,273,280
12	Nov 5, 2023 23:50	8,039	87,459,217	64,735,000	1,991,000	2,273,280
13	Oct 22, 2023 23:40	8,045	94,816,778	65,775,000	996,000	2,408,448
14	Oct 22, 2023 23:40	8,048	92,201,564	65,802,000	997,000	2,273,280
15	Oct 22, 2023 23:40	8,048	94,166,615	64,804,000	1,993,000	2,273,280
16	Oct 22, 2023 23:40	8,048	92,436,437	65,804,000	997,000	2,273,280
17	Nov 5, 2023 23:50	8,049	95,828,291	65,810,000	997,000	2,273,280
18	Nov 5, 2023 23:50	8,049	97,312,086	64,816,000	1,994,000	2,408,448
19	Oct 22, 2023 23:40	8,049	92,272,575	64,815,000	1,994,000	2,273,280
20	Oct 22, 2023 23:40	8,050	94,668,342	65,821,000	997,000	2,404,352
21	Nov 5, 2023 23:50	8,055	93,703,012	65,856,000	997,000	2,404,352
22	Nov 5, 2023 23:50	8,055	92,487,651	64,863,000	1,995,000	2,273,280
23	Nov 5, 2023 23:50	8,055	97,579,327	65,857,000	997,000	2,273,280
24	Nov 5, 2023 23:50	8,057	93,502,685	65,879,000	998,000	2,404,352
25	Nov 5, 2023 23:50	8,148	126,431,987	67,629,075	0	2,281,472
26	Oct 22, 2023 23:40	8,157	136,239,179	67,705,386	0	2,281,472
27	Oct 22, 2023 23:40	8,159	127,835,349	67,716,086	0	2,285,568
28	Nov 5, 2023 23:50	8,173	136,498,418	67,839,114	0	2,281,472
29	Nov 5, 2023 23:50	8,300	144,529,303	68,889,415	0	2,273,280
30	Oct 22, 2023 23:40	8,463	153,534,484	70,241,054	0	2,277,376

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