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
Jul 19, 2026 17:33	Adam Folwarczny	CPPg++14.2.0	Success	13,026
Jul 19, 2026 17:20	Adam Folwarczny	CPPg++14.2.0	Success	17,615
Jul 19, 2026 17:15	Adam Folwarczny	CPPg++14.2.0	Success	18,976
Jul 19, 2026 17:13	Adam Folwarczny	CPPg++14.2.0	Success	20,962
Jul 19, 2026 17:12	Adam Folwarczny	CPPclang++20.1.2	Success	19,355
Jul 19, 2026 17:10	Adam Folwarczny	CPPg++10.5.0	Success	21,925
Jul 19, 2026 16:52	Adam Folwarczny	CPPg++10.5.0	Success	40,250
Jul 19, 2026 16:44	Adam Folwarczny	CPPg++14.2.0	Success	47,763
Jul 19, 2026 15:40	Kevin Heavey	CPPg++14.2.0	Success	7,545
Jul 19, 2026 15:32	Kevin Heavey	CPPclang++18.1.3	Success	10,511
Jul 19, 2026 15:29	Kevin Heavey	CPPg++14.2.0	Success	10,459
Jul 19, 2026 13:47	Kevin Heavey	CPPg++14.2.0	Success	3,794
Jul 19, 2026 13:45	Kevin Heavey	CPPg++14.2.0	Success	3,700
Jul 19, 2026 13:41	Kevin Heavey	CPPg++14.2.0	Success	3,814
Jul 19, 2026 13:19	Kevin Heavey	RUSTrust-1.95.0	Success	3,825
Jul 19, 2026 11:58	Ondřej Polanecký	CPPg++10.5.0	Success	384,445
Jul 19, 2026 11:39	Ondřej Polanecký	CPPg++14.2.0	Success	174,564
Jul 19, 2026 11:24	Ondřej Polanecký	CPPg++14.2.0	Success	183,989
Jul 19, 2026 01:46	e1011	CPPg++10.5.0	Success	413,075
Jul 19, 2026 01:39	e1011	CPPg++10.5.0	Success	2,039,530
Jul 19, 2026 01:29	Ondřej Polanecký	CPPg++14.2.0	Success	179,160
Jul 19, 2026 01:25	Ondřej Polanecký	CPPclang++20.1.2	Success	7,130
Jul 19, 2026 01:21	Ondřej Polanecký	CPPg++14.2.0	Success	6,437+357.78 RP
Jul 19, 2026 01:08	Ondřej Polanecký	CPPg++10.5.0	Success	212,691
Jul 19, 2026 01:03	Ondřej Polanecký	CPPg++10.5.0	Success	184,428
Jul 19, 2026 00:41	Kevin Heavey	CPPclang++20.1.2	Success	3,610
Jul 19, 2026 00:07	Ondřej Polanecký	CPPg++10.5.0	Error
Jul 18, 2026 23:51	Kevin Heavey	CPPclang++20.1.2	Success	3,871
Jul 18, 2026 19:14	Adam Folwarczny	CPPclang++20.1.2	Success	60,654
Jul 18, 2026 19:05	Adam Folwarczny	CPPclang++20.1.2	Success	58,828
Jul 18, 2026 18:58	Adam Folwarczny	CPPg++14.2.0	Success	61,527
Jul 18, 2026 18:57	Adam Folwarczny	CPPclang++20.1.2	Error
Jul 18, 2026 18:54	Adam Folwarczny	CPPg++14.2.0	Error
Jul 18, 2026 18:53	Adam Folwarczny	CPPg++10.5.0	Success	66,865
Jul 18, 2026 18:51	Adam Folwarczny	CPPg++10.5.0	Success	62,036
Jul 18, 2026 18:33	Adam Folwarczny	CPPg++10.5.0	Success	72,464
Jul 18, 2026 18:26	Adam Folwarczny	CPPg++10.5.0	Error
Jul 18, 2026 18:24	Kevin Heavey	CPPclang++20.1.2	Success	3,926
Jul 18, 2026 18:22	Kevin Heavey	CPPclang++20.1.2	Success	3,719
Jul 18, 2026 18:21	Adam Folwarczny	CPPg++14.2.0	Error
Jul 18, 2026 17:52	Kevin Heavey	CPPclang++18.1.3	Success	3,831
Jul 18, 2026 17:51	Kevin Heavey	CPPclang++20.1.2	Success	3,892
Jul 18, 2026 17:48	Kevin Heavey	CPPclang++20.1.2	Success	3,953
Jul 18, 2026 17:20	Kevin Heavey	CPPclang++20.1.2	Success	3,948
Jul 18, 2026 17:17	Kevin Heavey	CPPclang++20.1.2	Success	3,718
Jul 18, 2026 17:14	boop34	CPPg++14.2.0	Success	8,918+4.76 RP
Jul 18, 2026 16:41	Kevin Heavey	CPPclang++20.1.2	Success	3,891
Jul 18, 2026 16:38	Kevin Heavey	CPPclang++20.1.2	Success	3,917
Jul 18, 2026 16:35	Kevin Heavey	CPPg++14.2.0	Success	3,854
Jul 18, 2026 16:34	Kevin Heavey	CPPg++14.2.0	Success	3,890
Jul 18, 2026 16:33	Kevin Heavey	CPPclang++20.1.2	Success	3,960
Jul 18, 2026 15:21	Adam Folwarczny	CPPg++10.5.0	Error
Jul 18, 2026 15:16	Kevin Heavey	CPPg++14.2.0	Success	3,855
Jul 18, 2026 15:16	Kevin Heavey	CPPg++14.2.0	Success	3,793
Jul 18, 2026 15:16	Kevin Heavey	CPPg++14.2.0	Success	3,713
Jul 18, 2026 15:15	Kevin Heavey	CPPg++14.2.0	Success	3,719
Jul 18, 2026 15:15	Kevin Heavey	CPPg++14.2.0	Success	3,777
Jul 18, 2026 15:15	Kevin Heavey	CPPg++14.2.0	Success	3,623
Jul 18, 2026 14:39	Kevin Heavey	CPPg++14.2.0	Success	3,596+35.88 RP
Jul 18, 2026 14:38	Kevin Heavey	CPPclang++18.1.3	Success	3,702
Jul 18, 2026 13:08	boop34	CPPg++14.2.0	Success	9,141
Jul 18, 2026 13:05	boop34	CPPg++14.2.0	Success	9,094
Jul 18, 2026 13:02	boop34	CPPclang++19.1.1	Success	9,230
Jul 18, 2026 12:59	boop34	CPPg++14.2.0	Success	8,956
Jul 18, 2026 12:38	Kevin Heavey	RUSTrust-1.95.0	Success	3,808
Jul 18, 2026 12:38	Kevin Heavey	RUSTrust-1.95.0	Success	3,643+27.00 RP
Jul 18, 2026 12:37	Kevin Heavey	RUSTrust-1.95.0	Success	3,839
Jul 18, 2026 12:37	Kevin Heavey	RUSTrust-1.95.0	Success	3,661+14.14 RP
Jul 18, 2026 12:37	Kevin Heavey	CPPclang++20.1.2	Success	3,972
Jul 18, 2026 12:35	Kevin Heavey	CPPclang++20.1.2	Success	3,704
Jul 18, 2026 12:35	boop34	CPPclang++19.1.1	Success	9,237
Jul 18, 2026 12:34	Kevin Heavey	CPPclang++20.1.2	Success	3,842
Jul 18, 2026 12:33	Kevin Heavey	CPPclang++20.1.2	Success	3,961
Jul 18, 2026 12:29	boop34	CPPg++14.2.0	Error
Jul 18, 2026 12:16	boop34	CPPg++14.2.0	Success	8,989
Jul 18, 2026 12:15	boop34	CPPg++14.2.0	Success	8,974
Jul 18, 2026 12:14	boop34	CPPg++14.2.0	Success	8,974
Jul 18, 2026 12:13	boop34	CPPg++14.2.0	Success	9,178
Jul 18, 2026 10:58	boop34	CPPg++14.2.0	Success	9,098
Jul 18, 2026 10:55	boop34	CPPg++14.2.0	Success	9,070
Jul 18, 2026 10:52	boop34	CPPg++14.2.0	Success	9,186
Jul 18, 2026 10:36	boop34	CPPg++14.2.0	Success	9,340
Jul 18, 2026 10:34	boop34	CPPg++14.2.0	Success	9,364
Jul 18, 2026 05:53	Kevin Heavey	RUSTrust-1.95.0	Success	3,765
Jul 18, 2026 05:53	Kevin Heavey	CPPclang++20.1.2	Success	3,720
Jul 17, 2026 21:47	Kevin Heavey	CPPclang++20.1.2	Success	3,950
Jul 17, 2026 21:35	Adam Folwarczny	CPPg++10.5.0	Error
Jul 17, 2026 21:28	Adam Folwarczny	CPPg++10.5.0	Success	74,559
Jul 17, 2026 21:22	Adam Folwarczny	CPPg++10.5.0	Success	75,892
Jul 17, 2026 21:20	Adam Folwarczny	CPPg++10.5.0	Error
Jul 17, 2026 21:14	Adam Folwarczny	CPPg++10.5.0	Error
Jul 17, 2026 20:20	Kevin Heavey	CPPclang++20.1.2	Success	3,882
Jul 17, 2026 20:17	Kevin Heavey	CPPclang++20.1.2	Success	3,910
Jul 17, 2026 20:16	Kevin Heavey	CPPclang++20.1.2	Success	3,747
Jul 17, 2026 20:14	Kevin Heavey	CPPclang++20.1.2	Success	3,932
Jul 17, 2026 20:12	Kevin Heavey	CPPclang++20.1.2	Success	3,947
Jul 17, 2026 20:07	Kevin Heavey	CPPclang++20.1.2	Success	3,716
Jul 17, 2026 19:25	Kevin Heavey	RUSTrust-1.95.0	Success	3,810
Jul 17, 2026 19:23	Kevin Heavey	CPPclang++20.1.2	Success	3,849
Jul 17, 2026 19:22	Kevin Heavey	CPPclang++20.1.2	Success	3,947

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