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	1:20.1.2-0ubuntu1~24.04.3	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	3.0.13-0ubuntu3.11	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 28, 2026 12:48	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 12:46	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 12:45	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 12:35	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 12:34	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 12:32	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 12:27	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 12:27	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 12:21	Victor Mercklé	CPPg++14.2.0	Success	4,497
Aug 28, 2026 11:42	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 11:38	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 11:34	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 11:30	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 11:27	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 11:24	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 11:23	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 11:20	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 11:19	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 11:18	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 11:17	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 11:16	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 11:14	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 11:12	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 11:12	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 11:07	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 11:03	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 10:58	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 10:53	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 10:37	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 10:30	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 10:22	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 10:03	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 09:59	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 09:48	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 09:46	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 09:43	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 09:41	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 09:39	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 09:36	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 09:32	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 09:30	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 08:47	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 08:45	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 08:32	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 08:28	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 08:25	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 08:16	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 08:09	Victor Mercklé	CPPg++14.2.0	Success	141,625
Aug 28, 2026 06:46	Haha Expert	CSHARP9.0.19	Success	62,596
Aug 28, 2026 06:41	Haha Expert	CSHARP9.0.15	Success	62,410
Aug 28, 2026 06:39	Haha Expert	CSHARP9.0.19	Error
Aug 28, 2026 06:37	Haha Expert	CSHARP9.0.19	Error
Aug 28, 2026 06:27	Haha Expert	CSHARP9.0.19	Error
Aug 28, 2026 06:24	Victor Mercklé	CPPg++14.2.0	Success	3,768
Aug 28, 2026 06:19	Haha Expert	CSHARP9.0.19	Error
Aug 28, 2026 06:13	Haha Expert	CSHARP9.0.19	Error
Aug 28, 2026 06:06	Victor Mercklé	CPPg++14.2.0	Success	6,129
Aug 28, 2026 05:58	Victor Mercklé	CPPg++14.2.0	Success	4,189
Aug 28, 2026 05:45	Victor Mercklé	CPPg++14.2.0	Success	11,080
Aug 28, 2026 05:43	Victor Mercklé	CPPg++14.2.0	Success	5,483
Aug 28, 2026 05:37	Victor Mercklé	CPPg++14.2.0	Success	11,811
Aug 28, 2026 05:36	Victor Mercklé	CPPg++14.2.0	Success	8,798
Aug 28, 2026 05:34	Victor Mercklé	CPPg++14.2.0	Success	5,608
Aug 28, 2026 05:24	Victor Mercklé	CPPg++14.2.0	Success	52,048
Aug 28, 2026 05:20	Victor Mercklé	CPPg++14.2.0	Success	3,737
Aug 28, 2026 05:18	Victor Mercklé	CPPg++14.2.0	Success	6,985
Aug 28, 2026 05:14	Victor Mercklé	CPPg++14.2.0	Success	5,834
Aug 28, 2026 05:05	Victor Mercklé	CPPg++14.2.0	Success	3,706
Aug 28, 2026 05:05	Victor Mercklé	CPPg++14.2.0	Success	3,712
Aug 28, 2026 05:03	Victor Mercklé	CPPg++14.2.0	Success	7,760
Aug 28, 2026 05:02	Victor Mercklé	CPPg++14.2.0	Success	6,966
Aug 27, 2026 19:03	Victor Mercklé	CPPg++14.2.0	Success	3,728
Aug 27, 2026 18:57	Victor Mercklé	CPPg++14.2.0	Success	4,489
Aug 27, 2026 18:49	Victor Mercklé	CPPg++14.2.0	Success	3,816
Aug 27, 2026 18:44	Victor Mercklé	CPPg++14.2.0	Success	3,780
Aug 27, 2026 18:39	Victor Mercklé	CPPg++14.2.0	Success	3,846
Aug 27, 2026 18:30	Victor Mercklé	CPPg++14.2.0	Success	3,766
Aug 27, 2026 18:17	Victor Mercklé	CPPg++14.2.0	Success	3,868
Aug 27, 2026 18:13	Victor Mercklé	CPPg++14.2.0	Success	9,019
Aug 27, 2026 18:03	Victor Mercklé	CPPg++14.2.0	Success	48,256
Aug 27, 2026 17:58	Victor Mercklé	CPPg++14.2.0	Success	4,714
Aug 27, 2026 17:52	Victor Mercklé	CPPg++14.2.0	Success	7,742
Aug 27, 2026 17:38	Victor Mercklé	CPPg++14.2.0	Success	3,882
Aug 27, 2026 17:35	Victor Mercklé	CPPg++14.2.0	Success	3,738
Aug 27, 2026 17:33	Victor Mercklé	CPPg++14.2.0	Success	7,583
Aug 27, 2026 17:23	Victor Mercklé	CPPg++14.2.0	Success	5,790
Aug 27, 2026 17:18	Victor Mercklé	CPPg++14.2.0	Success	4,745
Aug 27, 2026 17:10	Victor Mercklé	CPPg++14.2.0	Success	8,851
Aug 27, 2026 17:06	Victor Mercklé	CPPg++14.2.0	Success	3,773
Aug 27, 2026 17:05	Victor Mercklé	CPPg++14.2.0	Success	3,700
Aug 27, 2026 17:04	Victor Mercklé	CPPg++14.2.0	Success	4,583
Aug 27, 2026 16:58	Victor Mercklé	CPPg++14.2.0	Success	3,792
Aug 27, 2026 16:58	Victor Mercklé	CPPg++14.2.0	Success	3,763
Aug 27, 2026 16:54	Victor Mercklé	CPPg++14.2.0	Success	3,801
Aug 27, 2026 16:54	Victor Mercklé	CPPg++14.2.0	Success	3,808
Aug 27, 2026 16:54	Victor Mercklé	CPPg++14.2.0	Success	3,847
Aug 27, 2026 16:54	Victor Mercklé	CPPg++14.2.0	Success	3,801
Aug 27, 2026 16:53	Victor Mercklé	CPPg++14.2.0	Success	4,099
Aug 27, 2026 16:53	Victor Mercklé	CPPg++14.2.0	Success	3,737
Aug 27, 2026 16:51	Victor Mercklé	CPPg++14.2.0	Success	4,354

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