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 08:18	5,285	66,954,906	41,874,000	1,994,000	2,273,280
2	May 31, 2024 08:18	5,290	75,172,944	41,913,000	1,995,000	2,273,280
3	May 31, 2024 08:18	5,291	66,426,906	41,922,000	1,996,000	2,273,280
4	May 31, 2024 08:18	5,291	69,214,631	41,919,000	1,996,000	2,273,280
5	May 31, 2024 08:18	5,294	67,360,786	41,943,000	1,997,000	2,273,280
6	May 31, 2024 08:18	5,294	68,278,346	41,945,000	1,997,000	2,273,280
7	May 31, 2024 08:18	5,295	66,920,874	42,954,000	998,000	2,387,968
8	May 31, 2024 08:18	5,295	71,263,688	42,952,000	998,000	2,273,280
9	May 31, 2024 08:18	5,297	65,671,442	41,969,000	1,998,000	2,396,160
10	May 31, 2024 08:18	5,297	66,538,417	42,970,000	999,000	2,510,848
11	May 31, 2024 08:18	5,299	66,565,678	41,983,000	1,999,000	2,273,280
12	May 31, 2024 08:18	5,299	65,826,594	41,980,000	1,999,000	2,273,280
13	May 31, 2024 08:18	5,302	64,427,368	42,006,000	2,000,000	2,273,280
14	May 31, 2024 08:18	5,303	67,666,215	43,017,000	1,000,000	2,273,280
15	May 31, 2024 08:18	5,307	64,718,308	42,046,000	2,002,000	2,404,352
16	May 31, 2024 08:18	5,310	64,844,493	43,075,000	1,001,000	2,256,896
17	May 31, 2024 08:18	5,310	64,243,972	44,072,000	0	2,273,280
18	May 31, 2024 08:18	5,347	69,172,796	44,382,000	0	2,273,280
19	May 31, 2024 08:18	5,353	66,777,644	43,423,000	1,009,000	2,404,352
20	May 31, 2024 08:18	5,360	77,597,061	42,510,000	1,977,000	2,404,352
21	May 31, 2024 08:18	5,372	74,250,072	43,577,000	1,013,000	2,273,280
22	May 31, 2024 08:18	5,404	70,803,245	43,854,000	996,000	2,400,256
23	May 31, 2024 08:18	5,463	73,633,901	45,341,000	0	2,400,256
24	May 31, 2024 08:18	5,504	109,199,185	45,679,265	0	2,285,568
25	May 31, 2024 08:18	5,511	109,240,170	45,737,744	0	2,289,664
26	May 31, 2024 08:18	5,512	109,149,286	45,745,953	0	2,297,856
27	May 31, 2024 08:18	5,513	114,230,791	45,758,323	0	2,297,856
28	May 31, 2024 08:18	5,520	106,096,474	45,819,209	0	2,281,472
29	May 31, 2024 08:18	5,524	114,292,064	45,849,597	0	2,289,664
30	May 31, 2024 08:18	5,524	115,433,782	45,850,055	0	2,285,568
31	May 31, 2024 08:18	5,524	107,731,061	45,848,026	0	2,285,568
32	May 31, 2024 08:18	5,540	104,135,392	45,979,742	0	2,285,568
33	May 31, 2024 08:18	5,546	71,391,026	44,027,000	2,001,000	2,273,280
34	May 31, 2024 08:18	5,559	104,058,163	46,141,443	0	2,285,568
35	May 31, 2024 08:18	5,609	117,248,306	46,551,720	0	2,285,568
36	May 31, 2024 08:18	5,680	126,314,955	47,146,777	0	2,281,472

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