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 31, 2025 21:10	Adam Folwarczny	CPPclang++18.1.3	Success	8,265
Aug 31, 2025 20:51	Adam Folwarczny	CPPclang++18.1.3	Success	8,359
Aug 31, 2025 20:49	Adam Folwarczny	CPPclang++18.1.3	Error
Aug 31, 2025 20:44	Adam Folwarczny	CPPclang++18.1.3	Success	80,039
Aug 31, 2025 20:42	Adam Folwarczny	CPPclang++18.1.3	Success	80,149
Aug 30, 2025 21:50	Adam Folwarczny	CPPclang++18.1.3	Success	8,258+49.24 RP
Aug 30, 2025 21:49	Adam Folwarczny	CPPclang++18.1.3	Error
Aug 30, 2025 21:48	Adam Folwarczny	CPPclang++18.1.3	Success	8,608+95.16 RP
Aug 30, 2025 21:46	Adam Folwarczny	CPPclang++18.1.3	Success	9,376+55.84 RP
Aug 30, 2025 21:45	Adam Folwarczny	CPPclang++18.1.3	Success	10,094
Aug 30, 2025 21:37	Adam Folwarczny	CPPclang++18.1.3	Success	9,894+3.06 RP
Aug 30, 2025 21:35	Adam Folwarczny	CPPclang++18.1.3	Success	10,291
Aug 30, 2025 21:32	Adam Folwarczny	CPPclang++18.1.3	Success	9,924+8.76 RP
Aug 30, 2025 21:30	Adam Folwarczny	CPPclang++18.1.3	Success	10,011+26.33 RP
Aug 30, 2025 21:24	Adam Folwarczny	CPPclang++18.1.3	Success	10,294
Aug 30, 2025 21:22	Adam Folwarczny	CPPclang++18.1.3	Success	10,282+4.99 RP
Aug 30, 2025 21:18	Adam Folwarczny	CPPclang++18.1.3	Success	10,970
Aug 30, 2025 21:17	Adam Folwarczny	CPPclang++18.1.3	Success	10,335+1.31 RP
Aug 30, 2025 21:14	Adam Folwarczny	CPPclang++18.1.3	Error
Aug 30, 2025 21:05	Adam Folwarczny	CPPclang++18.1.3	Success	10,441
Aug 30, 2025 21:03	Adam Folwarczny	CPPclang++18.1.3	Success	10,393
Aug 30, 2025 20:55	Adam Folwarczny	CPPclang++18.1.3	Success	10,445
Aug 30, 2025 20:47	Adam Folwarczny	CPPclang++18.1.3	Success	10,349+1.77 RP
Aug 30, 2025 20:42	Adam Folwarczny	CPPclang++18.1.3	Error
Aug 30, 2025 20:40	Adam Folwarczny	CPPg++13.3.0	Success	13,190
Aug 30, 2025 20:38	Adam Folwarczny	CPPclang++18.1.3	Success	10,368+30.28 RP
Aug 30, 2025 20:36	Adam Folwarczny	CPPclang++18.1.3	Success	10,997
Aug 29, 2025 09:21	Adam Folwarczny	CPPclang++18.1.3	Success	10,740
Aug 29, 2025 09:18	Adam Folwarczny	CPPclang++18.1.3	Success	10,704+5.12 RP
Aug 29, 2025 08:02	Adam Folwarczny	CPPclang++18.1.3	Success	10,763+0.43 RP
Aug 29, 2025 08:00	Adam Folwarczny	CPPclang++18.1.3	Success	10,783
Aug 29, 2025 07:59	Adam Folwarczny	CPPg++13.3.0	Error
Aug 29, 2025 07:56	Adam Folwarczny	CPPg++13.3.0	Success	13,711
Aug 29, 2025 07:54	Adam Folwarczny	CPPclang++18.1.3	Success	10,768+130.85 RP
Aug 28, 2025 22:12	Adam Folwarczny	CPPclang++18.1.3	Success	62,743
Aug 28, 2025 22:09	Adam Folwarczny	CPPclang++18.1.3	Success	61,934
Aug 28, 2025 22:06	Adam Folwarczny	CPPclang++18.1.3	Success	62,933
Aug 28, 2025 22:06	Adam Folwarczny	CPPclang++18.1.3	Success	62,085
Aug 28, 2025 22:05	Adam Folwarczny	CPPclang++18.1.3	Success	95,631
Aug 28, 2025 21:31	Adam Folwarczny	CPPclang++18.1.3	Error
Aug 28, 2025 21:20	Adam Folwarczny	CPPclang++18.1.3	Error
Aug 26, 2025 22:15	Adam Folwarczny	CPPclang++18.1.3	Success	166,746
Aug 26, 2025 22:11	Adam Folwarczny	CPPclang++18.1.3	Error
Aug 26, 2025 22:08	Adam Folwarczny	CPPclang++18.1.3	Error
Aug 26, 2025 22:07	Adam Folwarczny	CPPclang++18.1.3	Error
Aug 26, 2025 22:06	Adam Folwarczny	CPPclang++18.1.3	Error
Aug 26, 2025 22:05	Adam Folwarczny	CPPclang++18.1.3	Error
Aug 26, 2025 22:04	Adam Folwarczny	CPPclang++18.1.3	Error
Aug 26, 2025 22:03	Adam Folwarczny	CPPclang++18.1.3	Error
Aug 26, 2025 22:02	Adam Folwarczny	CPPclang++18.1.3	Error
Aug 26, 2025 22:01	Adam Folwarczny	CPPclang++18.1.3	Error
Aug 26, 2025 22:00	Adam Folwarczny	CPPclang++18.1.3	Error
Aug 26, 2025 21:59	Adam Folwarczny	CPPclang++18.1.3	Error
Aug 26, 2025 21:58	Adam Folwarczny	CPPclang++18.1.3	Error
Aug 26, 2025 21:57	Adam Folwarczny	CPPclang++18.1.3	Error
Aug 26, 2025 21:55	Adam Folwarczny	CPPclang++18.1.3	Error
Aug 26, 2025 21:54	Adam Folwarczny	CPPclang++18.1.3	Error
Aug 26, 2025 21:53	Adam Folwarczny	CPPclang++18.1.3	Error
Aug 26, 2025 21:51	Adam Folwarczny	CPPclang++18.1.3	Error
Aug 26, 2025 21:50	Adam Folwarczny	CPPclang++18.1.3	Error
Aug 26, 2025 21:48	Adam Folwarczny	CPPclang++18.1.3	Error
Aug 26, 2025 21:47	Adam Folwarczny	CPPclang++18.1.3	Error
Aug 26, 2025 21:44	Adam Folwarczny	CPPclang++18.1.3	Error
Aug 26, 2025 21:43	Adam Folwarczny	CPPclang++18.1.3	Error
Aug 26, 2025 21:41	Adam Folwarczny	CPPclang++18.1.3	Error
Aug 26, 2025 21:40	Adam Folwarczny	CPPclang++18.1.3	Error
Aug 26, 2025 21:38	Adam Folwarczny	CPPclang++18.1.3	Error
Aug 26, 2025 21:34	Adam Folwarczny	CPPclang++18.1.3	Error
Aug 26, 2025 21:32	Adam Folwarczny	CPPclang++18.1.3	Error
Aug 26, 2025 21:22	Adam Folwarczny	CPPclang++18.1.3	Error
Aug 26, 2025 21:09	Adam Folwarczny	CPPclang++18.1.3	Error
Aug 26, 2025 21:08	Adam Folwarczny	CPPclang++18.1.3	Error
Aug 26, 2025 14:03	Ashish Ahuja	CPPg++13.3.0	Success	11,225
Aug 26, 2025 13:48	Ashish Ahuja	CPPg++13.3.0	Success	11,208
Aug 26, 2025 13:29	Ashish Ahuja	CPPg++13.3.0	Success	12,864
Aug 26, 2025 13:25	Ashish Ahuja	CPPg++13.3.0	Success	12,685
Aug 26, 2025 13:24	Ashish Ahuja	CPPg++13.3.0	Success	13,157
Aug 26, 2025 13:23	Ashish Ahuja	CPPg++13.3.0	Error
Aug 26, 2025 13:20	Ashish Ahuja	CPPg++13.3.0	Success	12,686
Aug 26, 2025 09:46	Ashish Ahuja	CPPg++13.3.0	Success	12,662
Aug 26, 2025 09:39	Ashish Ahuja	CPPg++13.3.0	Success	11,395
Aug 26, 2025 09:34	Ashish Ahuja	CPPg++13.3.0	Success	11,171
Aug 26, 2025 09:15	Ashish Ahuja	CPPg++13.3.0	Success	11,081
Aug 26, 2025 09:14	Ashish Ahuja	CPPg++13.3.0	Success	11,607
Aug 26, 2025 09:09	Ashish Ahuja	CPPg++13.3.0	Success	11,160
Aug 26, 2025 09:01	Ashish Ahuja	CPPg++13.3.0	Success	11,653
Aug 26, 2025 08:59	Ashish Ahuja	CPPg++13.3.0	Success	11,122
Aug 26, 2025 08:35	Ashish Ahuja	CPPg++13.3.0	Success	11,338
Aug 26, 2025 08:33	Ashish Ahuja	CPPg++13.3.0	Success	18,719
Aug 26, 2025 08:31	Ashish Ahuja	CPPg++13.3.0	Success	20,647
Aug 26, 2025 08:31	Ashish Ahuja	CPPg++13.3.0	Success	16,345
Aug 26, 2025 08:25	Ashish Ahuja	CPPg++13.3.0	Error
Aug 26, 2025 08:20	Ashish Ahuja	CPPg++13.3.0	Error
Aug 26, 2025 08:19	Ashish Ahuja	CPPg++13.3.0	Error
Aug 26, 2025 08:14	Ashish Ahuja	CPPg++13.3.0	Error
Aug 26, 2025 08:13	Ashish Ahuja	CPPg++13.3.0	Error
Aug 26, 2025 08:10	Ashish Ahuja	CPPg++13.3.0	Success	16,582
Aug 26, 2025 07:56	Ashish Ahuja	CPPg++13.3.0	Success	16,939
Aug 26, 2025 07:48	Ashish Ahuja	CPPg++13.3.0	Success	11,855
Aug 26, 2025 07:47	Ashish Ahuja	CPPg++13.3.0	Success	15,542

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