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 29, 2026 09:17	Victor Mercklé	CPPg++14.2.0	Success	5,024
Aug 29, 2026 09:13	Victor Mercklé	CPPg++14.2.0	Success	4,914
Aug 29, 2026 08:43	Victor Mercklé	CPPg++14.2.0	Error
Aug 29, 2026 08:37	Victor Mercklé	CPPg++14.2.0	Error
Aug 29, 2026 02:47	Victor Mercklé	CPPg++14.2.0	Success	3,727
Aug 29, 2026 02:42	Victor Mercklé	CPPg++14.2.0	Error
Aug 29, 2026 02:32	Victor Mercklé	CPPg++14.2.0	Error
Aug 29, 2026 02:23	Victor Mercklé	CPPg++14.2.0	Error
Aug 29, 2026 02:16	Victor Mercklé	CPPg++14.2.0	Error
Aug 29, 2026 02:01	Victor Mercklé	CPPg++14.2.0	Success	4,832
Aug 29, 2026 01:19	Victor Mercklé	CPPg++14.2.0	Success	5,142
Aug 29, 2026 01:08	Victor Mercklé	CPPg++14.2.0	Success	4,076
Aug 29, 2026 01:02	Victor Mercklé	CPPg++14.2.0	Success	4,526
Aug 28, 2026 22:12	Victor Mercklé	CPPg++14.2.0	Success	3,804
Aug 28, 2026 22:07	Victor Mercklé	CPPg++14.2.0	Success	4,130
Aug 28, 2026 21:48	Victor Mercklé	CPPg++14.2.0	Success	3,792
Aug 28, 2026 21:30	Victor Mercklé	CPPg++14.2.0	Success	5,420
Aug 28, 2026 21:20	Victor Mercklé	CPPg++14.2.0	Success	5,152
Aug 28, 2026 21:17	Victor Mercklé	CPPg++14.2.0	Success	5,189
Aug 28, 2026 21:11	Victor Mercklé	CPPg++14.2.0	Success	5,348
Aug 28, 2026 21:10	Victor Mercklé	CPPg++14.2.0	Success	5,126
Aug 28, 2026 21:07	Victor Mercklé	CPPg++14.2.0	Success	5,457
Aug 28, 2026 20:58	Victor Mercklé	CPPg++14.2.0	Success	5,425
Aug 28, 2026 20:37	Victor Mercklé	CPPg++14.2.0	Success	4,747
Aug 28, 2026 20:35	Victor Mercklé	CPPg++14.2.0	Success	4,771
Aug 28, 2026 20:34	Victor Mercklé	CPPg++14.2.0	Success	4,801
Aug 28, 2026 20:32	Victor Mercklé	CPPg++14.2.0	Success	4,779
Aug 28, 2026 20:30	Victor Mercklé	CPPg++14.2.0	Success	4,770
Aug 28, 2026 20:29	Victor Mercklé	CPPg++14.2.0	Success	4,793
Aug 28, 2026 20:25	Victor Mercklé	CPPg++14.2.0	Success	5,150
Aug 28, 2026 20:12	Victor Mercklé	CPPg++14.2.0	Success	4,916
Aug 28, 2026 20:02	Victor Mercklé	CPPg++14.2.0	Success	4,829
Aug 28, 2026 20:01	Victor Mercklé	CPPg++14.2.0	Success	4,814
Aug 28, 2026 19:56	Victor Mercklé	CPPg++14.2.0	Success	5,299
Aug 28, 2026 19:47	Victor Mercklé	CPPg++14.2.0	Success	4,830
Aug 28, 2026 19:41	Victor Mercklé	CPPg++14.2.0	Success	5,170
Aug 28, 2026 19:38	Victor Mercklé	CPPg++14.2.0	Success	5,196
Aug 28, 2026 19:32	Victor Mercklé	CPPg++14.2.0	Success	4,892
Aug 28, 2026 19:30	Victor Mercklé	CPPg++14.2.0	Success	5,051
Aug 28, 2026 19:27	Victor Mercklé	CPPg++14.2.0	Success	4,936
Aug 28, 2026 19:25	Victor Mercklé	CPPg++14.2.0	Success	5,186
Aug 28, 2026 19:22	Victor Mercklé	CPPg++14.2.0	Success	3,763
Aug 28, 2026 19:18	Victor Mercklé	CPPg++14.2.0	Success	5,189
Aug 28, 2026 19:17	Victor Mercklé	CPPg++14.2.0	Success	3,726
Aug 28, 2026 19:16	Victor Mercklé	CPPg++14.2.0	Success	3,795
Aug 28, 2026 19:15	Victor Mercklé	CPPg++14.2.0	Success	3,682+12.48 RP
Aug 28, 2026 19:09	Victor Mercklé	CPPg++14.2.0	Success	6,149
Aug 28, 2026 19:06	Victor Mercklé	CPPg++14.2.0	Success	5,253
Aug 28, 2026 19:03	Victor Mercklé	CPPg++14.2.0	Success	3,724
Aug 28, 2026 19:01	Victor Mercklé	CPPg++14.2.0	Success	6,053
Aug 28, 2026 18:59	Victor Mercklé	CPPg++14.2.0	Success	5,783
Aug 28, 2026 18:58	Victor Mercklé	CPPg++14.2.0	Success	5,803
Aug 28, 2026 18:56	Victor Mercklé	CPPg++14.2.0	Success	5,987
Aug 28, 2026 18:53	Victor Mercklé	CPPg++14.2.0	Success	5,853
Aug 28, 2026 18:47	Victor Mercklé	CPPg++14.2.0	Success	6,098
Aug 28, 2026 18:42	Victor Mercklé	CPPg++14.2.0	Success	6,368
Aug 28, 2026 18:34	Victor Mercklé	CPPg++14.2.0	Success	7,067
Aug 28, 2026 18:28	Victor Mercklé	CPPg++14.2.0	Success	7,069
Aug 28, 2026 18:23	Victor Mercklé	CPPg++14.2.0	Success	7,155
Aug 28, 2026 18:15	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 18:06	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 18:00	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 17:54	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 17:52	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 17:06	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 17:01	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 16:55	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 16:08	Victor Mercklé	CPPg++14.2.0	Success	6,609
Aug 28, 2026 16:01	Victor Mercklé	CPPg++14.2.0	Success	4,004
Aug 28, 2026 15:59	Victor Mercklé	CPPg++14.2.0	Success	3,887
Aug 28, 2026 15:57	Victor Mercklé	CPPg++14.2.0	Success	6,610
Aug 28, 2026 15:56	Victor Mercklé	CPPg++14.2.0	Success	6,810
Aug 28, 2026 15:55	Victor Mercklé	CPPg++14.2.0	Success	6,874
Aug 28, 2026 15:53	Victor Mercklé	CPPg++14.2.0	Success	4,286
Aug 28, 2026 15:52	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 15:51	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 15:49	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 15:48	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 15:46	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 15:44	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 15:43	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 15:42	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 15:29	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 15:29	Victor Mercklé	CPPg++14.2.0	Success	6,402
Aug 28, 2026 15:14	Victor Mercklé	CPPg++14.2.0	Success	9,569
Aug 28, 2026 15:12	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 15:12	Victor Mercklé	CPPg++14.2.0	Success	8,066
Aug 28, 2026 15:03	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 14:57	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 14:32	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 14:23	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 14:22	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 14:21	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 14:19	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 14:15	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 14:14	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 14:13	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 14:11	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 12:49	Victor Mercklé	CPPg++14.2.0	Error
Aug 28, 2026 12:48	Victor Mercklé	CPPg++14.2.0	Error

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