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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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Jun 4, 2024 15:42	4,954	64,475,079	39,111,000	2,005,000	2,273,280
2	Jun 4, 2024 15:42	4,954	67,345,247	39,116,000	2,005,000	2,400,256
3	Jun 4, 2024 15:42	4,957	66,723,093	39,139,000	2,007,000	2,273,280
4	Jun 4, 2024 15:42	4,957	63,775,868	40,137,000	1,003,000	2,392,064
5	Jun 4, 2024 15:42	4,957	63,072,308	39,134,000	2,006,000	2,392,064
6	Jun 4, 2024 15:42	4,960	68,384,769	40,162,000	1,004,000	2,273,280
7	Jun 4, 2024 15:42	4,963	67,642,966	39,184,000	2,009,000	2,273,280
8	Jun 4, 2024 15:42	4,963	63,471,545	40,187,000	1,004,000	2,400,256
9	Jun 4, 2024 15:42	4,966	63,410,706	39,205,000	2,010,000	2,400,256
10	Jun 4, 2024 15:42	4,969	65,462,260	40,239,000	1,005,000	2,273,280
11	Jun 4, 2024 15:42	4,969	67,275,587	39,232,000	2,011,000	2,400,256
12	Jun 4, 2024 15:42	4,970	71,308,114	39,239,000	2,012,000	2,273,280
13	Jun 4, 2024 15:42	4,970	68,604,891	39,242,000	2,012,000	2,273,280
14	Jun 4, 2024 15:42	4,971	62,603,720	39,251,000	2,012,000	2,273,280
15	Jun 4, 2024 15:42	4,971	67,091,576	39,251,000	2,012,000	2,396,160
16	Jun 4, 2024 15:42	4,975	66,905,728	39,276,000	2,014,000	2,396,160
17	Jun 4, 2024 15:42	4,977	68,822,033	39,294,000	2,015,000	2,404,352
18	Jun 4, 2024 15:42	4,977	62,222,105	40,305,000	1,007,000	2,273,280
19	Jun 4, 2024 15:42	4,977	64,823,467	40,303,000	1,007,000	2,273,280
20	Jun 4, 2024 15:42	4,978	67,556,326	39,302,000	2,015,000	2,273,280
21	Jun 4, 2024 15:42	4,979	64,490,050	40,319,000	1,007,000	2,400,256
22	Jun 4, 2024 15:42	4,980	62,474,946	40,326,000	1,008,000	2,490,368
23	Jun 4, 2024 15:42	4,980	63,846,531	40,329,000	1,008,000	2,273,280
24	Jun 4, 2024 15:42	4,982	71,598,683	41,353,000	0	2,404,352
25	Jun 4, 2024 15:42	4,985	64,192,057	40,364,000	1,009,000	2,273,280
26	Jun 4, 2024 15:42	4,994	62,565,984	40,439,000	1,010,000	2,273,280
27	Jun 4, 2024 15:42	4,997	66,708,564	41,478,000	0	2,273,280
28	Jun 4, 2024 15:42	5,100	104,351,714	42,331,750	0	2,285,568
29	Jun 4, 2024 15:42	5,101	109,705,927	42,339,068	0	2,285,568
30	Jun 4, 2024 15:42	5,103	105,977,610	42,358,937	0	2,289,664
31	Jun 4, 2024 15:42	5,103	96,949,413	42,357,450	0	2,289,664
32	Jun 4, 2024 15:42	5,104	137,566,430	42,363,934	0	2,289,664
33	Jun 4, 2024 15:42	5,105	107,157,669	42,368,761	0	2,293,760
34	Jun 4, 2024 15:42	5,105	113,209,631	42,368,614	0	2,285,568
35	Jun 4, 2024 15:42	5,105	121,231,158	42,374,257	0	2,277,376
36	Jun 4, 2024 15:42	5,107	101,297,894	42,386,568	0	2,281,472
37	Jun 4, 2024 15:42	5,108	113,928,866	42,394,305	0	2,285,568
38	Jun 4, 2024 15:42	5,108	107,515,846	42,395,851	0	2,277,376
39	Jun 4, 2024 15:42	5,187	110,280,655	43,052,218	0	2,256,896
40	Jun 4, 2024 15:42	5,911	75,581,005	47,057,000	2,002,000	2,273,280
41	Jun 4, 2024 15:42	5,914	73,230,984	47,087,000	2,003,000	2,396,160
42	Jun 4, 2024 15:42	5,915	76,939,689	47,089,000	2,003,000	2,273,280
43	Jun 4, 2024 15:42	5,929	74,856,556	47,205,000	2,008,000	2,396,160
44	Jun 4, 2024 15:42	5,935	74,298,686	48,256,000	1,005,000	2,400,256
45	Jun 4, 2024 15:42	5,945	73,931,033	48,337,000	1,007,000	2,273,280
46	Jun 4, 2024 15:42	5,971	71,072,445	48,545,000	1,011,000	2,392,064
47	Jun 4, 2024 15:42	5,978	80,189,093	48,604,000	1,012,000	2,408,448
48	Jun 4, 2024 15:42	6,004	79,022,378	48,839,000	996,000	2,400,256

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