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	May 31, 2024 13:48	5,183	65,700,789	41,016,000	2,000,000	2,408,448
2	May 31, 2024 13:48	5,184	64,668,012	41,026,000	2,001,000	2,400,256
3	May 31, 2024 13:48	5,190	65,591,298	42,080,000	1,001,000	2,273,280
4	May 31, 2024 13:48	5,190	70,495,166	42,075,000	1,001,000	2,273,280
5	May 31, 2024 13:48	5,192	73,423,103	41,093,000	2,004,000	2,396,160
6	May 31, 2024 13:48	5,192	69,948,337	42,093,000	1,002,000	2,396,160
7	May 31, 2024 13:48	5,194	67,923,361	41,109,000	2,005,000	2,396,160
8	May 31, 2024 13:48	5,197	67,058,258	41,126,000	2,006,000	2,396,160
9	May 31, 2024 13:48	5,198	66,378,492	41,139,000	2,006,000	2,498,560
10	May 31, 2024 13:48	5,200	66,196,332	41,151,000	2,007,000	2,396,160
11	May 31, 2024 13:48	5,202	68,642,498	41,172,000	2,008,000	2,273,280
12	May 31, 2024 13:48	5,203	69,557,886	41,181,000	2,008,000	2,273,280
13	May 31, 2024 13:48	5,205	61,983,441	41,190,000	2,009,000	2,273,280
14	May 31, 2024 13:48	5,206	68,615,526	41,201,000	2,009,000	2,273,280
15	May 31, 2024 13:48	5,211	67,082,794	41,240,000	2,011,000	2,273,280
16	May 31, 2024 13:48	5,212	71,564,253	41,249,000	2,012,000	2,400,256
17	May 31, 2024 13:48	5,212	68,511,171	41,246,000	2,012,000	2,396,160
18	May 31, 2024 13:48	5,212	76,033,093	41,246,000	2,012,000	2,273,280
19	May 31, 2024 13:48	5,217	68,103,087	42,294,000	1,007,000	2,273,280
20	May 31, 2024 13:48	5,219	64,208,085	42,311,000	1,007,000	2,273,280
21	May 31, 2024 13:48	5,219	65,420,258	43,321,000	0	2,273,280
22	May 31, 2024 13:48	5,227	63,540,644	42,372,000	1,008,000	2,273,280
23	May 31, 2024 13:48	5,227	68,375,768	43,382,000	0	2,273,280
24	May 31, 2024 13:48	5,234	68,581,383	42,433,000	1,010,000	2,396,160
25	May 31, 2024 13:48	5,237	65,349,207	43,468,000	0	2,404,352
26	May 31, 2024 13:48	5,241	66,645,312	42,487,000	1,011,000	2,400,256
27	May 31, 2024 13:48	5,243	66,749,950	42,525,000	988,000	2,400,256
28	May 31, 2024 13:48	5,244	66,033,359	42,510,000	1,012,000	2,273,280
29	May 31, 2024 13:48	5,245	67,265,716	42,520,000	1,012,000	2,273,280
30	May 31, 2024 13:48	5,247	72,449,538	41,575,000	1,979,000	2,404,352
31	May 31, 2024 13:48	5,250	71,387,897	42,558,000	1,013,000	2,400,256
32	May 31, 2024 13:48	5,255	72,781,999	42,604,000	1,014,000	2,273,280
33	May 31, 2024 13:48	5,280	68,714,048	42,827,000	995,000	2,273,280
34	May 31, 2024 13:48	5,308	79,143,838	43,055,000	1,001,000	2,400,256
35	May 31, 2024 13:48	5,349	70,913,852	44,393,000	0	2,396,160
36	May 31, 2024 13:48	5,361	71,481,010	43,488,000	1,011,000	2,273,280
37	May 31, 2024 13:48	5,410	107,958,519	44,905,366	0	2,285,568
38	May 31, 2024 13:48	5,412	109,571,100	44,923,720	0	2,293,760
39	May 31, 2024 13:48	5,427	108,068,748	45,046,975	0	2,289,664
40	May 31, 2024 13:48	5,427	116,963,445	45,041,677	0	2,281,472
41	May 31, 2024 13:48	5,430	103,315,473	45,071,010	0	2,277,376
42	May 31, 2024 13:48	5,439	107,552,513	45,142,516	0	2,285,568
43	May 31, 2024 13:48	5,440	106,603,076	45,155,724	0	2,285,568
44	May 31, 2024 13:48	5,442	103,148,878	45,172,662	0	2,285,568
45	May 31, 2024 13:48	5,456	116,217,868	45,286,546	0	2,277,376
46	May 31, 2024 13:48	5,457	98,562,981	45,296,836	0	2,277,376
47	May 31, 2024 13:48	5,483	108,007,274	45,505,730	0	2,277,376
48	May 31, 2024 13:48	5,518	123,621,528	45,800,464	0	2,285,568

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