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.

Date	Author	Language	Status	Score
May 10, 2026 03:53	Josu San Martin	CPPclang++18.1.3	Success	4,498
May 10, 2026 03:52	Josu San Martin	CPPclang++18.1.3	Success	4,405
May 10, 2026 03:51	Josu San Martin	CPPclang++18.1.3	Success	4,377+8.32 RP
May 10, 2026 03:50	Josu San Martin	CPPclang++18.1.3	Error
May 10, 2026 03:49	Josu San Martin	CPPclang++18.1.3	Success	4,393+4.65 RP
May 10, 2026 03:46	Josu San Martin	CPPclang++18.1.3	Success	4,472
May 10, 2026 03:44	Josu San Martin	CPPclang++18.1.3	Success	4,402+2.06 RP
May 10, 2026 03:43	Josu San Martin	CPPclang++18.1.3	Success	4,431
May 10, 2026 03:41	Josu San Martin	CPPclang++18.1.3	Error
May 10, 2026 03:36	Josu San Martin	CPPclang++18.1.3	Error
May 10, 2026 03:34	Josu San Martin	CPPclang++18.1.3	Success	4,422
May 10, 2026 03:33	Josu San Martin	CPPclang++18.1.3	Success	4,449
May 10, 2026 03:32	Josu San Martin	CPPclang++18.1.3	Success	4,406+5.14 RP
May 10, 2026 03:31	Josu San Martin	CPPclang++18.1.3	Success	4,416+26.35 RP
May 10, 2026 03:30	Josu San Martin	CPPclang++18.1.3	Success	4,468+37.92 RP
May 10, 2026 03:26	Josu San Martin	CPPclang++18.1.3	Success	4,553
May 10, 2026 03:25	Josu San Martin	CPPclang++18.1.3	Success	4,545+37.59 RP
May 10, 2026 03:23	Josu San Martin	CPPclang++18.1.3	Error
May 10, 2026 03:22	Josu San Martin	CPPclang++18.1.3	Error
May 10, 2026 03:21	Josu San Martin	CPPclang++18.1.3	Error
May 10, 2026 03:20	Josu San Martin	CPPclang++18.1.3	Success	4,624+2.80 RP
May 10, 2026 03:19	Josu San Martin	CPPclang++18.1.3	Success	4,630+17.12 RP
May 10, 2026 03:17	Josu San Martin	CPPclang++18.1.3	Success	4,786
May 10, 2026 03:14	Josu San Martin	CPPclang++18.1.3	Success	4,683
May 10, 2026 03:10	Josu San Martin	CPPclang++18.1.3	Success	4,822
May 10, 2026 03:09	Josu San Martin	CPPclang++18.1.3	Success	4,717
May 10, 2026 03:07	Josu San Martin	CPPclang++18.1.3	Success	4,695
May 10, 2026 02:57	Josu San Martin	CPPclang++18.1.3	Success	4,753
May 10, 2026 02:54	Josu San Martin	CPPclang++18.1.3	Success	4,758
May 10, 2026 02:46	Josu San Martin	CPPclang++18.1.3	Success	5,124
May 10, 2026 02:45	Josu San Martin	CPPclang++18.1.3	Success	4,747
May 10, 2026 02:43	Josu San Martin	CPPclang++18.1.3	Success	4,703
May 10, 2026 02:29	Josu San Martin	CPPclang++18.1.3	Success	4,833
May 10, 2026 02:25	Josu San Martin	CPPclang++18.1.3	Success	4,736
May 10, 2026 02:18	Josu San Martin	CPPclang++18.1.3	Success	4,832
May 10, 2026 02:16	Josu San Martin	CPPclang++18.1.3	Success	4,667+25.85 RP
May 10, 2026 02:05	Josu San Martin	CPPclang++18.1.3	Success	4,724+6.70 RP
May 10, 2026 01:57	Josu San Martin	CPPclang++18.1.3	Error
May 10, 2026 01:45	Josu San Martin	CPPclang++18.1.3	Success	4,739+20.72 RP
May 10, 2026 01:31	Josu San Martin	CPPclang++18.1.3	Success	4,870
May 10, 2026 01:25	Josu San Martin	CPPg++13.3.0	Success	5,709
May 10, 2026 01:19	Josu San Martin	CPPclang++18.1.3	Success	4,954
May 10, 2026 00:57	Josu San Martin	CPPclang++18.1.3	Success	5,248
May 10, 2026 00:48	Josu San Martin	CPPclang++18.1.3	Success	4,786+3.92 RP
May 10, 2026 00:44	Josu San Martin	CPPclang++18.1.3	Success	5,266
May 10, 2026 00:31	Josu San Martin	CPPclang++18.1.3	Success	4,795+0.43 RP
May 10, 2026 00:03	Andrii Stolitnii	CPPg++10.5.0	Error
May 9, 2026 23:57	Andrii Stolitnii	CPPg++10.5.0	Success	86,099
May 9, 2026 23:56	Andrii Stolitnii	CPPg++10.5.0	Success	85,827
May 9, 2026 23:55	Andrii Stolitnii	CPPg++10.5.0	Success	85,714
May 9, 2026 23:54	Andrii Stolitnii	CPPg++14.2.0	Success	80,744
May 9, 2026 23:52	Andrii Stolitnii	CPPg++10.5.0	Success	86,129
May 9, 2026 23:50	Andrii Stolitnii	CPPg++10.5.0	Success	85,615
May 9, 2026 23:49	Andrii Stolitnii	CPPg++10.5.0	Success	87,695
May 9, 2026 23:46	Josu San Martin	CPPclang++18.1.3	Success	5,059
May 9, 2026 23:45	Andrii Stolitnii	CPPg++14.2.0	Success	79,002+12.34 RP
May 9, 2026 23:37	Andrii Stolitnii	CPPg++10.5.0	Success	87,534+2.07 RP
May 9, 2026 23:31	Andrii Stolitnii	CPPg++10.5.0	Success	89,150+112.17 RP
May 9, 2026 23:23	Josu San Martin	CPPclang++18.1.3	Success	4,890
May 9, 2026 23:19	Josu San Martin	CPPclang++18.1.3	Success	4,874
May 9, 2026 23:02	Josu San Martin	CPPclang++18.1.3	Success	4,844
May 9, 2026 23:00	Josu San Martin	CPPclang++18.1.3	Success	4,815
May 9, 2026 22:56	Josu San Martin	CPPclang++19.1.1	Success	4,939
May 9, 2026 22:55	Josu San Martin	CPPclang++18.1.3	Success	4,821
May 9, 2026 22:54	Josu San Martin	CPPclang++18.1.3	Success	4,797
May 9, 2026 22:52	Josu San Martin	CPPclang++18.1.3	Success	4,877
May 9, 2026 22:45	Josu San Martin	CPPclang++18.1.3	Success	4,964
May 9, 2026 22:43	Josu San Martin	CPPclang++18.1.3	Success	4,842
May 9, 2026 22:41	Josu San Martin	CPPclang++18.1.3	Success	4,796+23.22 RP
May 9, 2026 22:40	Josu San Martin	CPPclang++18.1.3	Success	5,044
May 9, 2026 22:38	Josu San Martin	CPPclang++18.1.3	Success	5,083
May 9, 2026 22:35	Josu San Martin	CPPclang++18.1.3	Success	4,893
May 9, 2026 22:24	Josu San Martin	CPPclang++18.1.3	Success	5,469
May 9, 2026 22:18	Josu San Martin	CPPclang++18.1.3	Success	5,533
May 9, 2026 22:03	Josu San Martin	CPPclang++18.1.3	Success	5,394
May 9, 2026 21:59	Josu San Martin	CPPclang++20.1.2	Success	5,196
May 9, 2026 21:54	Josu San Martin	CPPclang++18.1.3	Success	4,988
May 9, 2026 21:48	Josu San Martin	CPPclang++18.1.3	Success	5,252
May 9, 2026 21:25	Josu San Martin	CPPclang++18.1.3	Success	4,954
May 9, 2026 21:22	Josu San Martin	CPPg++13.3.0	Success	5,626
May 9, 2026 21:06	Josu San Martin	CPPclang++18.1.3	Success	4,897
May 9, 2026 21:00	Josu San Martin	CPPclang++18.1.3	Success	4,900
May 9, 2026 20:57	Josu San Martin	CPPclang++18.1.3	Success	4,974
May 9, 2026 20:49	Josu San Martin	CPPclang++18.1.3	Success	4,870
May 9, 2026 20:43	Josu San Martin	CPPclang++18.1.3	Success	4,850+10.99 RP
May 9, 2026 20:35	Milo Presedo	CPPg++10.5.0	Error
May 9, 2026 20:33	Josu San Martin	CPPclang++18.1.3	Success	5,138
May 9, 2026 20:21	Josu San Martin	CPPclang++18.1.3	Success	4,933
May 9, 2026 20:08	Josu San Martin	CPPclang++18.1.3	Success	4,969
May 9, 2026 20:06	flavio87	CPPg++14.2.0	Success	7,598+134.66 RP
May 9, 2026 19:59	Josu San Martin	CPPclang++18.1.3	Success	4,876
May 9, 2026 19:44	Josu San Martin	CPPclang++18.1.3	Success	5,053
May 9, 2026 19:35	Josu San Martin	CPPclang++18.1.3	Success	5,074
May 9, 2026 19:18	Josu San Martin	CPPclang++18.1.3	Success	4,920
May 9, 2026 19:16	Josu San Martin	CPPclang++18.1.3	Success	4,876+29.84 RP
May 9, 2026 19:04	Josu San Martin	CPPclang++19.1.1	Success	4,953
May 9, 2026 18:48	Josu San Martin	CPPclang++20.1.2	Success	5,130
May 9, 2026 18:45	Josu San Martin	CPPg++13.3.0	Success	5,774
May 9, 2026 18:36	Josu San Martin	CPPg++13.3.0	Success	5,852
May 9, 2026 14:42	wn	CPPg++13.3.0	Success	3,517

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