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
Apr 1, 2026 22:19	zielaj	CPPclang++18.1.3	Error
Apr 1, 2026 22:16	zielaj	CPPclang++18.1.3	Success	3,478
Apr 1, 2026 20:59	leowe	CPPclang++18.1.3	Success	67,985
Apr 1, 2026 20:52	leowe	CPPclang++18.1.3	Success	68,469
Apr 1, 2026 20:51	leowe	CPPclang++18.1.3	Error
Apr 1, 2026 20:49	leowe	CPPclang++18.1.3	Error
Apr 1, 2026 20:46	leowe	CPPclang++18.1.3	Success	65,397
Apr 1, 2026 20:46	leowe	CPPclang++18.1.3	Success	64,836
Apr 1, 2026 20:43	leowe	CPPclang++18.1.3	Success	69,313
Apr 1, 2026 20:41	leowe	CPPclang++18.1.3	Success	61,219+24.60 RP
Apr 1, 2026 20:40	leowe	CPPclang++18.1.3	Success	78,702
Apr 1, 2026 20:39	leowe	CPPclang++18.1.3	Error
Apr 1, 2026 20:38	leowe	CPPclang++18.1.3	Error
Apr 1, 2026 20:37	leowe	CPPclang++18.1.3	Success	72,074+69.84 RP
Apr 1, 2026 20:35	leowe	CPPclang++18.1.3	Success	145,124+41.66 RP
Apr 1, 2026 20:33	leowe	CPPclang++18.1.3	Success	366,957+5.46 RP
Apr 1, 2026 20:29	leowe	CPPg++13.3.0	Success	460,380
Apr 1, 2026 20:28	leowe	CPPclang++18.1.3	Success	458,805+16.96 RP
Apr 1, 2026 20:27	leowe	CPPg++13.3.0	Success	2,069,262+4.83 RP
Apr 1, 2026 12:34	zielaj	CPPclang++18.1.3	Success	3,547
Apr 1, 2026 12:33	zielaj	CPPclang++18.1.3	Error
Apr 1, 2026 12:02	zielaj	CPPclang++18.1.3	Success	3,425
Apr 1, 2026 11:58	zielaj	CPPclang++18.1.3	Error
Apr 1, 2026 11:53	zielaj	CPPclang++18.1.3	Error
Apr 1, 2026 11:52	zielaj	CPPclang++18.1.3	Error
Apr 1, 2026 11:51	zielaj	CPPclang++18.1.3	Error
Apr 1, 2026 11:48	zielaj	CPPclang++18.1.3	Success	3,423
Apr 1, 2026 10:10	olliecrow	GOgo1.26.1	Success	6,591
Apr 1, 2026 01:50	zielaj	CPPclang++18.1.3	Success	3,445
Apr 1, 2026 01:49	zielaj	CPPclang++18.1.3	Success	3,521
Apr 1, 2026 01:17	zielaj	CPPclang++18.1.3	Success	3,410
Apr 1, 2026 01:13	zielaj	CPPclang++18.1.3	Success	3,410
Apr 1, 2026 01:12	zielaj	CPPclang++18.1.3	Success	3,411
Apr 1, 2026 01:09	zielaj	CPPclang++18.1.3	Success	3,424
Apr 1, 2026 01:09	zielaj	CPPclang++18.1.3	Success	3,423
Apr 1, 2026 01:05	zielaj	CPPclang++18.1.3	Success	3,412
Apr 1, 2026 01:03	zielaj	CPPclang++18.1.3	Success	3,779
Apr 1, 2026 01:02	zielaj	CPPclang++18.1.3	Success	3,561
Apr 1, 2026 01:01	zielaj	CPPclang++18.1.3	Success	3,450
Apr 1, 2026 00:59	zielaj	CPPclang++18.1.3	Success	3,413
Apr 1, 2026 00:58	zielaj	CPPclang++18.1.3	Error
Apr 1, 2026 00:56	zielaj	CPPclang++18.1.3	Success	3,618
Apr 1, 2026 00:54	zielaj	CPPclang++18.1.3	Error
Apr 1, 2026 00:54	zielaj	CPPclang++18.1.3	Success	3,410
Apr 1, 2026 00:53	zielaj	CPPclang++18.1.3	Error	+2.58 RP
Apr 1, 2026 00:52	zielaj	CPPclang++18.1.3	Success	3,410+10.28 RP
Apr 1, 2026 00:50	zielaj	CPPclang++18.1.3	Error
Apr 1, 2026 00:46	zielaj	CPPclang++18.1.3	Error
Apr 1, 2026 00:45	zielaj	CPPclang++18.1.3	Success	3,604
Apr 1, 2026 00:43	zielaj	CPPclang++18.1.3	Success	3,430
Apr 1, 2026 00:41	zielaj	CPPclang++18.1.3	Success	3,442
Apr 1, 2026 00:36	zielaj	CPPclang++18.1.3	Error
Apr 1, 2026 00:34	zielaj	CPPclang++18.1.3	Error
Apr 1, 2026 00:33	zielaj	CPPclang++18.1.3	Error
Apr 1, 2026 00:30	zielaj	CPPclang++18.1.3	Error
Apr 1, 2026 00:29	zielaj	CPPclang++18.1.3	Error
Apr 1, 2026 00:25	zielaj	CPPclang++18.1.3	Error
Apr 1, 2026 00:24	zielaj	CPPclang++18.1.3	Error
Apr 1, 2026 00:23	zielaj	CPPclang++18.1.3	Success	3,512
Apr 1, 2026 00:23	zielaj	CPPclang++18.1.3	Error
Apr 1, 2026 00:22	zielaj	CPPclang++18.1.3	Error
Apr 1, 2026 00:21	zielaj	CPPclang++18.1.3	Error
Apr 1, 2026 00:03	zielaj	CPPclang++18.1.3	Success	3,576
Mar 31, 2026 23:09	zielaj	CPPclang++18.1.3	Error
Mar 31, 2026 22:54	zielaj	CPPclang++18.1.3	Success	3,430
Mar 31, 2026 22:50	zielaj	CPPclang++18.1.3	Success	3,461
Mar 31, 2026 22:48	zielaj	CPPclang++18.1.3	Success	3,475
Mar 31, 2026 22:47	zielaj	CPPclang++18.1.3	Success	3,476
Mar 31, 2026 22:35	zielaj	CPPclang++18.1.3	Success	3,446
Mar 31, 2026 22:16	zielaj	CPPclang++18.1.3	Success	3,454
Mar 31, 2026 22:11	zielaj	CPPclang++18.1.3	Success	3,447
Mar 31, 2026 22:03	zielaj	CPPclang++18.1.3	Error
Mar 31, 2026 21:58	zielaj	CPPclang++18.1.3	Error
Mar 31, 2026 21:49	zielaj	CPPclang++18.1.3	Error
Mar 31, 2026 14:48	Yuriy Lyfenko	CPPg++13.3.0	Success	4,705
Mar 31, 2026 14:48	Yuriy Lyfenko	CPPg++13.3.0	Success	4,965
Mar 31, 2026 14:47	Yuriy Lyfenko	CPPg++13.3.0	Success	4,888
Mar 31, 2026 14:46	Yuriy Lyfenko	CPPg++13.3.0	Success	4,882
Mar 31, 2026 14:45	Yuriy Lyfenko	CPPg++13.3.0	Success	5,488
Mar 31, 2026 14:41	skylookup	CPPg++13.3.0	Success	56,093+8.36 RP
Mar 31, 2026 14:40	skylookup	CPPg++13.3.0	Success	67,408
Mar 31, 2026 14:35	skylookup	CPPg++13.3.0	Error
Mar 31, 2026 14:20	skylookup	CPPg++13.3.0	Error
Mar 31, 2026 14:16	skylookup	CPPg++13.3.0	Error
Mar 31, 2026 14:13	skylookup	CPPg++13.3.0	Error
Mar 31, 2026 14:02	skylookup	CPPg++13.3.0	Success	58,854+105.93 RP
Mar 31, 2026 13:59	skylookup	CPPg++13.3.0	Success	156,523
Mar 31, 2026 13:10	skylookup	CPPg++13.3.0	Success	367,718
Mar 31, 2026 13:04	Yuriy Lyfenko	CPPg++13.3.0	Success	4,882
Mar 31, 2026 13:03	Yuriy Lyfenko	CPPg++13.3.0	Success	4,926
Mar 31, 2026 13:01	Yuriy Lyfenko	CPPg++13.3.0	Success	5,002
Mar 31, 2026 13:01	skylookup	CPPg++13.3.0	Success	156,292+63.98 RP
Mar 31, 2026 13:01	Yuriy Lyfenko	CPPg++13.3.0	Success	5,037
Mar 31, 2026 12:31	Yuriy Lyfenko	CPPg++13.3.0	Success	4,661
Mar 31, 2026 12:30	Yuriy Lyfenko	CPPg++13.3.0	Success	4,673
Mar 31, 2026 12:30	Yuriy Lyfenko	CPPg++13.3.0	Success	4,939
Mar 31, 2026 12:29	Yuriy Lyfenko	CPPg++13.3.0	Error
Mar 31, 2026 11:09	Kefelle	CPPg++13.3.0	Success	2,067,920+4.84 RP
Mar 31, 2026 09:14	ArkadyRudenko	CPPclang++18.1.3	Success	2,068,768+4.83 RP
Mar 31, 2026 02:23	zielaj	CPPclang++18.1.3	Error

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