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
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
Mar 31, 2026 02:21	zielaj	CPPclang++18.1.3	Error
Mar 31, 2026 02:16	zielaj	CPPclang++18.1.3	Error
Mar 31, 2026 02:13	zielaj	CPPclang++18.1.3	Success	3,437
Mar 30, 2026 21:11	Dominique Garmier	CPPclang++18.1.3	Success	40,445
Mar 30, 2026 20:35	Dominique Garmier	RUSTrust-1.94.1	Success	47,597
Mar 30, 2026 20:29	Dominique Garmier	RUSTrust-1.94.1	Error
Mar 30, 2026 19:31	Chandaluru Hema Venkata Raadhes	CPPclang++18.1.3	Success	2,068,269+4.83 RP
Mar 30, 2026 19:24	Dominique Garmier	CPPclang++18.1.3	Success	42,323
Mar 30, 2026 19:22	Dominique Garmier	CPPclang++18.1.3	Success	48,519
Mar 30, 2026 19:19	Dominique Garmier	CPPclang++18.1.3	Success	36,571
Mar 30, 2026 18:06	Dominique Garmier	CPPclang++18.1.3	Success	37,281
Mar 30, 2026 17:04	Dominique Garmier	RUSTrust-1.94.1	Success	7,668
Mar 30, 2026 17:03	Dominique Garmier	RUSTrust-1.94.1	Success	38,908
Mar 30, 2026 17:02	Dominique Garmier	RUSTrust-1.94.1	Success	36,357
Mar 30, 2026 16:24	Dominique Garmier	GOgo1.26.1	Success	101,339
Mar 30, 2026 14:50	Dominique Garmier	RUSTrust-1.94.1	Success	37,826
Mar 30, 2026 14:46	Dominique Garmier	RUSTrust-1.94.1	Success	41,369
Mar 30, 2026 14:32	Dominique Garmier	RUSTrust-1.94.1	Success	49,721
Mar 30, 2026 14:08	Dominique Garmier	RUSTrust-1.94.1	Success	44,202
Mar 30, 2026 11:18	Dominique Garmier	RUSTrust-1.94.1	Success	37,802
Mar 30, 2026 11:17	Dominique Garmier	RUSTrust-1.94.1	Success	383,368
Mar 30, 2026 10:38	Dominique Garmier	RUSTrust-1.94.1	Success	262,263
Mar 30, 2026 10:37	Dominique Garmier	RUSTrust-1.94.1	Success	269,512
Mar 30, 2026 10:30	Dominique Garmier	RUSTrust-1.94.1	Error
Mar 30, 2026 10:29	Dominique Garmier	RUSTrust-1.94.1	Success	273,716
Mar 30, 2026 01:34	zielaj	CPPclang++18.1.3	Success	3,474
Mar 30, 2026 01:32	zielaj	CPPclang++18.1.3	Success	3,568
Mar 30, 2026 01:29	zielaj	CPPclang++18.1.3	Success	3,472
Mar 30, 2026 01:28	zielaj	CPPclang++18.1.3	Success	3,453
Mar 30, 2026 01:27	zielaj	CPPclang++18.1.3	Success	3,475
Mar 30, 2026 01:22	zielaj	CPPclang++18.1.3	Success	3,477
Mar 30, 2026 01:19	zielaj	CPPclang++18.1.3	Error
Mar 30, 2026 01:16	zielaj	CPPclang++18.1.3	Success	3,637
Mar 30, 2026 01:15	zielaj	CPPclang++18.1.3	Success	3,732
Mar 30, 2026 01:14	zielaj	CPPclang++18.1.3	Success	3,645
Mar 30, 2026 01:01	zielaj	CPPclang++18.1.3	Error
Mar 30, 2026 01:00	zielaj	CPPclang++18.1.3	Error
Mar 30, 2026 01:00	zielaj	CPPclang++18.1.3	Success	4,252
Mar 30, 2026 00:43	zielaj	CPPclang++18.1.3	Success	4,066
Mar 30, 2026 00:42	zielaj	CPPclang++18.1.3	Success	4,140
Mar 30, 2026 00:39	zielaj	CPPclang++18.1.3	Error
Mar 30, 2026 00:37	zielaj	CPPclang++18.1.3	Error
Mar 30, 2026 00:34	zielaj	CPPclang++18.1.3	Error
Mar 30, 2026 00:32	zielaj	CPPclang++18.1.3	Error
Mar 30, 2026 00:31	zielaj	CPPclang++18.1.3	Error
Mar 30, 2026 00:28	zielaj	CPPclang++18.1.3	Error
Mar 30, 2026 00:22	zielaj	CPPclang++18.1.3	Error
Mar 30, 2026 00:20	zielaj	CPPclang++18.1.3	Error
Mar 29, 2026 23:56	Dominique Garmier	RUSTrust-1.94.1	Success	40,550
Mar 29, 2026 22:54	zielaj	CPPclang++18.1.3	Error
Mar 29, 2026 22:53	zielaj	CPPclang++18.1.3	Error
Mar 29, 2026 22:51	zielaj	CPPclang++18.1.3	Error
Mar 29, 2026 22:50	zielaj	CPPclang++18.1.3	Error
Mar 29, 2026 22:47	zielaj	CPPclang++18.1.3	Success	54,540
Mar 29, 2026 22:46	zielaj	CPPclang++18.1.3	Error
Mar 29, 2026 22:45	zielaj	CPPclang++18.1.3	Error
Mar 29, 2026 22:44	Dominique Garmier	RUSTrust-1.94.1	Success	443,909
Mar 29, 2026 22:43	Dominique Garmier	RUSTrust-1.94.1	Success	370,071
Mar 29, 2026 22:42	zielaj	CPPclang++18.1.3	Error
Mar 29, 2026 22:41	zielaj	CPPclang++18.1.3	Error
Mar 29, 2026 22:39	zielaj	CPPclang++18.1.3	Error
Mar 29, 2026 22:36	zielaj	CPPclang++18.1.3	Error
Mar 29, 2026 22:34	zielaj	CPPclang++18.1.3	Error
Mar 29, 2026 22:33	zielaj	CPPclang++18.1.3	Error
Mar 29, 2026 22:32	zielaj	CPPclang++18.1.3	Error
Mar 29, 2026 22:30	zielaj	CPPclang++18.1.3	Error
Mar 29, 2026 22:29	zielaj	CPPclang++18.1.3	Error
Mar 29, 2026 22:27	zielaj	CPPclang++18.1.3	Error
Mar 29, 2026 22:25	zielaj	CPPclang++18.1.3	Error
Mar 29, 2026 22:23	zielaj	CPPclang++18.1.3	Error
Mar 29, 2026 22:23	Danylo Mocherniuk	CPPg++13.3.0	Success	6,648
Mar 29, 2026 22:22	Danylo Mocherniuk	CPPg++13.3.0	Error
Mar 29, 2026 22:14	Danylo Mocherniuk	CPPg++13.3.0	Success	6,806
Mar 29, 2026 22:11	Danylo Mocherniuk	CPPg++13.3.0	Success	6,795
Mar 29, 2026 22:04	Danylo Mocherniuk	CPPg++13.3.0	Success	8,702
Mar 29, 2026 22:01	Danylo Mocherniuk	CPPg++13.3.0	Success	8,345
Mar 29, 2026 22:00	Dominique Garmier	RUSTrust-1.94.1	Success	39,833

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