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
May 15, 2026 14:58	Victor Mercklé	CPPg++14.2.0	Success	6,973
May 15, 2026 14:53	Victor Mercklé	CPPg++14.2.0	Success	7,020
May 15, 2026 14:44	Victor Mercklé	CPPg++14.2.0	Success	6,986
May 15, 2026 14:16	Victor Mercklé	CPPg++14.2.0	Success	6,970
May 15, 2026 14:11	M-Rochat	CPPclang++17.0.6	Success	26,493
May 15, 2026 14:11	Victor Mercklé	CPPg++14.2.0	Success	6,968
May 15, 2026 14:06	Victor Mercklé	CPPg++14.2.0	Success	6,966
May 15, 2026 13:53	Victor Mercklé	CPPg++14.2.0	Success	6,969
May 15, 2026 13:48	Victor Mercklé	CPPg++14.2.0	Success	7,019
May 15, 2026 13:43	Victor Mercklé	CPPg++14.2.0	Success	6,967
May 15, 2026 13:30	Victor Mercklé	CPPg++14.2.0	Success	6,967
May 15, 2026 13:25	Victor Mercklé	CPPg++14.2.0	Success	6,974
May 15, 2026 13:20	Victor Mercklé	CPPg++14.2.0	Success	6,971
May 15, 2026 13:13	Victor Mercklé	CPPg++14.2.0	Success	6,969
May 15, 2026 13:08	wn	CPPg++13.3.0	Success	3,305
May 15, 2026 13:07	Victor Mercklé	CPPg++14.2.0	Success	6,971
May 15, 2026 13:02	Victor Mercklé	CPPg++14.2.0	Success	6,970
May 15, 2026 12:57	Victor Mercklé	CPPg++14.2.0	Success	6,964
May 15, 2026 12:52	Victor Mercklé	CPPg++14.2.0	Success	6,971
May 15, 2026 12:35	Victor Mercklé	CPPg++14.2.0	Success	6,969
May 15, 2026 12:30	Victor Mercklé	CPPg++14.2.0	Success	6,968
May 15, 2026 12:25	Victor Mercklé	CPPg++14.2.0	Success	6,967
May 15, 2026 12:13	wn	CPPg++13.3.0	Success	3,323
May 15, 2026 12:12	wn	CPPg++13.3.0	Success	3,322
May 15, 2026 11:37	Victor Mercklé	CPPg++14.2.0	Success	6,969
May 15, 2026 11:32	Victor Mercklé	CPPg++14.2.0	Success	6,968
May 15, 2026 11:27	Victor Mercklé	CPPg++14.2.0	Success	6,973
May 15, 2026 11:14	Victor Mercklé	CPPg++14.2.0	Success	6,967
May 15, 2026 10:50	Victor Mercklé	CPPg++14.2.0	Success	6,967
May 15, 2026 10:38	Victor Mercklé	CPPg++14.2.0	Success	6,972
May 15, 2026 10:32	Victor Mercklé	CPPg++14.2.0	Success	6,969
May 15, 2026 10:29	Milo Presedo	CPPg++10.5.0	Success	7,902+51.62 RP
May 15, 2026 10:19	Victor Mercklé	CPPg++14.2.0	Success	6,979
May 15, 2026 08:08	Victor Mercklé	CPPg++14.2.0	Success	6,975
May 15, 2026 07:55	Victor Mercklé	CPPg++14.2.0	Success	6,988
May 15, 2026 07:50	Victor Mercklé	CPPg++14.2.0	Success	6,986
May 15, 2026 06:37	Victor Mercklé	CPPg++14.2.0	Error
May 15, 2026 06:18	Victor Mercklé	CPPg++14.2.0	Success	72,718
May 15, 2026 06:07	Victor Mercklé	CPPg++14.2.0	Error
May 15, 2026 05:56	Victor Mercklé	CPPg++14.2.0	Success	6,997
May 15, 2026 05:46	Victor Mercklé	CPPg++14.2.0	Success	64,385
May 15, 2026 05:37	Victor Mercklé	CPPg++14.2.0	Success	57,273
May 15, 2026 05:28	Victor Mercklé	CPPg++14.2.0	Success	3,493,633
May 15, 2026 05:23	Victor Mercklé	CPPg++14.2.0	Success	7,012
May 15, 2026 05:04	Victor Mercklé	CPPg++14.2.0	Success	6,969
May 15, 2026 04:57	Victor Mercklé	CPPg++14.2.0	Success	6,964+0.41 RP
May 15, 2026 04:46	Victor Mercklé	CPPg++14.2.0	Success	6,971
May 15, 2026 04:26	Victor Mercklé	CPPg++14.2.0	Success	6,986
May 15, 2026 04:20	Victor Mercklé	CPPg++14.2.0	Success	7,022
May 15, 2026 04:04	Victor Mercklé	CPPg++14.2.0	Error
May 15, 2026 03:59	Victor Mercklé	CPPg++14.2.0	Success	6,972
May 15, 2026 03:53	Victor Mercklé	CPPg++14.2.0	Success	6,973
May 15, 2026 03:45	Victor Mercklé	CPPg++14.2.0	Success	6,966
May 15, 2026 03:16	Victor Mercklé	CPPg++14.2.0	Success	6,992
May 15, 2026 01:45	Victor Mercklé	CPPg++14.2.0	Success	7,241
May 15, 2026 01:40	Victor Mercklé	CPPg++14.2.0	Error
May 15, 2026 00:34	wn	CPPg++13.3.0	Success	3,338
May 14, 2026 21:56	Victor Mercklé	CPPg++14.2.0	Success	3,493,597
May 14, 2026 21:44	Victor Mercklé	CPPg++14.2.0	Success	126,797
May 14, 2026 21:29	Victor Mercklé	CPPg++14.2.0	Success	58,667
May 14, 2026 21:24	Victor Mercklé	CPPg++14.2.0	Success	60,817
May 14, 2026 21:19	Victor Mercklé	CPPg++14.2.0	Success	56,566
May 14, 2026 21:14	Victor Mercklé	CPPg++14.2.0	Success	56,874
May 14, 2026 14:36	Josu San Martin	CPPclang++17.0.6	Error
May 14, 2026 14:36	Josu San Martin	CPPclang++18.1.3	Error
May 14, 2026 14:35	Josu San Martin	CPPclang++19.1.1	Error
May 14, 2026 09:38	Victor Mercklé	CPPg++14.2.0	Success	660,501
May 14, 2026 09:31	Victor Mercklé	CPPg++14.2.0	Success	67,806
May 14, 2026 09:26	Victor Mercklé	CPPg++14.2.0	Success	61,447
May 14, 2026 09:21	Victor Mercklé	CPPg++14.2.0	Success	103,011
May 14, 2026 09:16	Victor Mercklé	CPPg++14.2.0	Success	59,283
May 14, 2026 09:10	Victor Mercklé	CPPg++14.2.0	Success	63,671
May 14, 2026 09:05	Victor Mercklé	CPPg++14.2.0	Success	58,743
May 14, 2026 08:54	Victor Mercklé	CPPg++14.2.0	Success	60,490
May 14, 2026 08:47	Victor Mercklé	CPPg++14.2.0	Success	74,830
May 14, 2026 08:41	Victor Mercklé	CPPg++14.2.0	Success	67,562
May 14, 2026 08:36	Victor Mercklé	CPPg++14.2.0	Success	66,308
May 14, 2026 08:31	Victor Mercklé	CPPg++14.2.0	Success	62,311
May 14, 2026 08:26	Victor Mercklé	CPPg++14.2.0	Success	63,702
May 14, 2026 08:21	Victor Mercklé	CPPg++14.2.0	Success	58,971
May 14, 2026 08:16	Victor Mercklé	CPPg++14.2.0	Success	58,539
May 14, 2026 08:11	Victor Mercklé	CPPg++14.2.0	Success	58,734
May 14, 2026 08:06	Victor Mercklé	CPPg++14.2.0	Success	59,250
May 14, 2026 08:01	Victor Mercklé	CPPg++14.2.0	Success	60,729
May 14, 2026 07:56	Victor Mercklé	CPPg++14.2.0	Success	58,536
May 14, 2026 07:51	Victor Mercklé	CPPg++14.2.0	Success	59,983
May 14, 2026 07:46	Victor Mercklé	CPPg++14.2.0	Success	58,687
May 14, 2026 07:41	Victor Mercklé	CPPg++14.2.0	Success	60,116
May 14, 2026 07:36	Victor Mercklé	CPPg++14.2.0	Success	6,983
May 14, 2026 07:31	Victor Mercklé	CPPg++14.2.0	Success	6,966
May 14, 2026 07:26	Victor Mercklé	CPPg++14.2.0	Success	6,991
May 14, 2026 07:21	Victor Mercklé	CPPg++14.2.0	Error
May 14, 2026 07:16	Victor Mercklé	CPPg++14.2.0	Error
May 14, 2026 07:09	Victor Mercklé	CPPg++14.2.0	Success	6,973
May 14, 2026 07:04	Victor Mercklé	CPPg++14.2.0	Success	6,985
May 14, 2026 06:59	Victor Mercklé	CPPg++14.2.0	Success	6,968
May 14, 2026 06:54	Victor Mercklé	CPPg++14.2.0	Error
May 14, 2026 06:49	Victor Mercklé	CPPg++14.2.0	Success	6,966+0.62 RP
May 14, 2026 06:44	Victor Mercklé	CPPg++14.2.0	Error
May 14, 2026 06:39	Victor Mercklé	CPPg++14.2.0	Success	6,969+2.67 RP

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