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
Aug 3, 2025 15:03	Trinh The Son	CPPg++13.3.0	Success	75,862+126.98 RP
Aug 3, 2025 15:02	Trinh The Son	CPPg++13.3.0	Error
Aug 3, 2025 14:52	Trinh The Son	CPPg++13.3.0	Success	2,067,370+4.84 RP
Aug 3, 2025 13:17	Jack Frigaard	CPPclang++18.1.3	Success	5,120
Aug 3, 2025 13:16	Jack Frigaard	CPPclang++18.1.3	Success	5,121
Aug 3, 2025 13:11	Jack Frigaard	CPPclang++18.1.3	Error
Aug 3, 2025 10:10	Jack Frigaard	CPPclang++18.1.3	Error
Aug 3, 2025 10:09	Jack Frigaard	CPPclang++18.1.3	Error
Aug 2, 2025 21:06	Jack Frigaard	CPPclang++18.1.3	Success	5,117
Aug 2, 2025 21:06	Jack Frigaard	CPPclang++18.1.3	Error
Aug 2, 2025 21:05	Jack Frigaard	CPPclang++18.1.3	Error
Aug 2, 2025 21:04	Jack Frigaard	CPPclang++18.1.3	Success	4,838
Aug 2, 2025 21:03	Jack Frigaard	CPPclang++18.1.3	Error
Aug 2, 2025 21:03	Jack Frigaard	CPPclang++18.1.3	Error
Aug 2, 2025 21:02	Jack Frigaard	CPPclang++18.1.3	Error
Aug 2, 2025 20:50	Jack Frigaard	CPPclang++18.1.3	Success	4,715
Aug 2, 2025 20:49	Jack Frigaard	CPPclang++18.1.3	Error
Aug 2, 2025 20:48	Jack Frigaard	CPPclang++18.1.3	Error
Aug 2, 2025 20:47	Jack Frigaard	CPPclang++18.1.3	Error
Aug 2, 2025 20:47	Jack Frigaard	CPPclang++18.1.3	Error
Aug 2, 2025 20:46	Jack Frigaard	CPPclang++18.1.3	Error
Aug 2, 2025 20:46	Jack Frigaard	CPPclang++18.1.3	Success	4,723
Aug 2, 2025 20:43	Jack Frigaard	CPPclang++18.1.3	Success	5,001
Aug 2, 2025 20:40	Jack Frigaard	CPPclang++18.1.3	Success	4,990
Aug 2, 2025 20:39	Jack Frigaard	CPPclang++18.1.3	Success	4,990
Aug 2, 2025 20:37	Jack Frigaard	CPPclang++18.1.3	Success	4,763
Aug 2, 2025 20:36	Jack Frigaard	CPPclang++18.1.3	Success	4,761
Aug 2, 2025 20:36	Jack Frigaard	CPPclang++18.1.3	Error
Aug 2, 2025 20:35	Jack Frigaard	CPPclang++18.1.3	Success	4,761
Aug 2, 2025 20:34	Jack Frigaard	CPPclang++18.1.3	Success	4,754
Aug 2, 2025 20:33	Jack Frigaard	CPPclang++18.1.3	Success	4,931
Aug 2, 2025 20:32	Jack Frigaard	CPPclang++18.1.3	Success	4,921
Aug 2, 2025 20:32	Jack Frigaard	CPPclang++18.1.3	Success	4,985
Aug 2, 2025 20:31	Jack Frigaard	CPPclang++18.1.3	Success	5,038
Aug 2, 2025 20:31	Jack Frigaard	CPPclang++18.1.3	Success	4,943
Aug 2, 2025 20:31	Jack Frigaard	CPPclang++18.1.3	Success	4,943
Aug 2, 2025 20:30	Jack Frigaard	CPPclang++18.1.3	Success	4,771
Aug 2, 2025 20:30	Jack Frigaard	CPPclang++18.1.3	Success	4,741
Aug 2, 2025 20:30	Jack Frigaard	CPPclang++18.1.3	Success	4,774
Aug 2, 2025 20:30	Jack Frigaard	CPPclang++18.1.3	Success	4,754
Aug 2, 2025 20:29	Jack Frigaard	CPPclang++18.1.3	Success	4,765
Aug 2, 2025 20:26	Jack Frigaard	CPPclang++18.1.3	Success	4,735
Aug 2, 2025 20:26	Jack Frigaard	CPPclang++18.1.3	Success	4,939
Aug 2, 2025 20:25	Jack Frigaard	CPPclang++18.1.3	Success	4,934
Aug 2, 2025 20:24	Jack Frigaard	CPPclang++18.1.3	Success	4,943
Aug 2, 2025 20:21	Jack Frigaard	CPPclang++18.1.3	Success	4,753
Aug 2, 2025 20:16	Jack Frigaard	CPPclang++18.1.3	Success	4,714
Aug 2, 2025 20:15	Jack Frigaard	CPPclang++18.1.3	Success	4,732
Aug 2, 2025 20:14	Jack Frigaard	CPPclang++18.1.3	Success	4,768
Aug 2, 2025 20:14	Jack Frigaard	CPPclang++18.1.3	Success	4,823
Aug 2, 2025 20:13	Jack Frigaard	CPPclang++18.1.3	Success	4,997
Aug 2, 2025 20:12	Jack Frigaard	CPPclang++18.1.3	Success	5,583
Aug 2, 2025 20:11	Jack Frigaard	CPPclang++18.1.3	Success	4,718
Aug 2, 2025 20:11	Jack Frigaard	CPPclang++18.1.3	Success	4,714
Aug 2, 2025 20:10	Jack Frigaard	CPPclang++18.1.3	Success	4,661
Aug 2, 2025 20:08	Jack Frigaard	CPPclang++18.1.3	Success	4,698
Aug 2, 2025 20:04	Jack Frigaard	CPPclang++18.1.3	Success	4,914
Aug 2, 2025 20:03	Jack Frigaard	CPPclang++18.1.3	Success	4,934
Aug 2, 2025 20:02	Jack Frigaard	CPPclang++18.1.3	Success	4,903
Aug 2, 2025 20:01	Jack Frigaard	CPPclang++18.1.3	Error
Aug 2, 2025 19:48	Marco Barbone	CPPg++13.3.0	Success	38,186
Aug 2, 2025 17:20	Marco Barbone	CPPg++13.3.0	Success	37,673+77.18 RP
Aug 2, 2025 16:36	Jack Frigaard	CPPclang++18.1.3	Success	4,660+8.71 RP
Aug 2, 2025 16:35	Jack Frigaard	CPPclang++18.1.3	Success	4,679+0.46 RP
Aug 2, 2025 16:27	Jack Frigaard	CPPclang++18.1.3	Success	4,993
Aug 2, 2025 16:22	Jack Frigaard	CPPclang++18.1.3	Success	4,717
Aug 2, 2025 14:04	Jack Frigaard	CPPclang++18.1.3	Success	4,680+49.94 RP
Aug 2, 2025 13:18	Jack Frigaard	CPPclang++18.1.3	Error
Aug 2, 2025 12:51	Jack Frigaard	CPPclang++18.1.3	Success	4,862
Aug 2, 2025 12:23	Marco Barbone	CPPg++13.3.0	Success	53,118+26.20 RP
Aug 2, 2025 12:09	Marco Barbone	CPPg++13.3.0	Success	165,911
Aug 1, 2025 20:47	Marco Barbone	CPPg++13.3.0	Success	220,056
Jul 30, 2025 03:55	Marco Barbone	CPPg++13.3.0	Success	74,792
Jul 30, 2025 03:52	Marco Barbone	CPPg++13.3.0	Success	76,401
Jul 30, 2025 03:51	Marco Barbone	CPPg++13.3.0	Success	76,162
Jul 30, 2025 03:40	Marco Barbone	CPPg++13.3.0	Success	120,981
Jul 30, 2025 03:34	Marco Barbone	CPPg++13.3.0	Success	83,749
Jul 30, 2025 03:24	Marco Barbone	CPPg++13.3.0	Success	74,669
Jul 30, 2025 02:47	Marco Barbone	CPPg++13.3.0	Success	123,027
Jul 30, 2025 02:46	Marco Barbone	CPPg++13.3.0	Success	122,798
Jul 30, 2025 02:42	Marco Barbone	CPPg++13.3.0	Success	121,489
Jul 30, 2025 02:34	Marco Barbone	CPPg++13.3.0	Success	108,553
Jul 29, 2025 03:28	Marco Barbone	CPPg++13.3.0	Success	229,844
Jul 29, 2025 02:34	Marco Barbone	CPPclang++18.1.3	Success	103,574
Jul 29, 2025 02:08	Marco Barbone	CPPg++13.3.0	Error
Jul 29, 2025 01:46	Marco Barbone	CPPg++13.3.0	Success	167,268
Jul 29, 2025 01:45	Marco Barbone	CPPg++13.3.0	Error
Jul 29, 2025 01:44	Marco Barbone	CPPg++13.3.0	Error
Jul 29, 2025 01:15	Marco Barbone	CPPg++13.3.0	Success	237,339
Jul 28, 2025 14:15	Marco Barbone	CPPg++13.3.0	Success	127,379
Jul 28, 2025 02:02	Marco Barbone	CPPg++13.3.0	Success	61,706+4.15 RP
Jul 28, 2025 02:01	Marco Barbone	CPPclang++18.1.3	Success	63,328+21.43 RP
Jul 28, 2025 01:57	Marco Barbone	CPPclang++18.1.3	Success	75,563
Jul 28, 2025 01:57	Marco Barbone	CPPg++13.3.0	Success	73,272+1.28 RP
Jul 28, 2025 01:52	Marco Barbone	CPPg++13.3.0	Success	125,684
Jul 28, 2025 01:43	Marco Barbone	CPPg++13.3.0	Success	273,148
Jul 28, 2025 01:43	Marco Barbone	CPPclang++18.1.3	Success	134,887
Jul 28, 2025 01:39	Marco Barbone	CPPclang++18.1.3	Success	136,690
Jul 28, 2025 01:00	Ruoyu Qiu	CPPg++13.3.0	Success	75,837
Jul 28, 2025 00:55	Ruoyu Qiu	CPPg++13.3.0	Success	75,589+7.83 RP

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