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
Mar 24, 2026 05:54	servant714	CPPg++13.3.0	Success	66,377
Mar 24, 2026 05:52	servant714	CPPg++13.3.0	Success	67,299
Mar 24, 2026 05:51	servant714	CPPg++13.3.0	Success	67,435
Mar 24, 2026 05:51	servant714	CPPg++13.3.0	Success	85,633
Mar 24, 2026 05:49	servant714	CPPg++13.3.0	Success	85,229
Mar 24, 2026 05:47	servant714	CPPg++13.3.0	Success	70,394
Mar 24, 2026 05:46	servant714	CPPg++13.3.0	Success	77,115
Mar 24, 2026 05:45	servant714	CPPg++13.3.0	Success	67,660
Mar 24, 2026 05:44	servant714	CPPg++13.3.0	Error
Mar 24, 2026 05:42	servant714	CPPg++13.3.0	Success	484,091
Mar 24, 2026 05:40	servant714	CPPg++13.3.0	Success	65,978
Mar 24, 2026 05:38	servant714	CPPg++13.3.0	Error
Mar 24, 2026 05:37	servant714	CPPg++13.3.0	Success	66,009
Mar 24, 2026 05:36	servant714	CPPg++13.3.0	Success	70,582
Mar 24, 2026 05:32	servant714	CPPg++13.3.0	Success	64,727
Mar 24, 2026 04:57	servant714	CPPg++13.3.0	Success	64,883
Mar 24, 2026 04:57	servant714	CPPg++13.3.0	Success	64,847
Mar 24, 2026 04:53	servant714	CPPg++13.3.0	Success	65,504
Mar 24, 2026 04:49	servant714	CPPg++13.3.0	Success	64,802
Mar 24, 2026 04:48	servant714	CPPg++13.3.0	Success	63,228+3.95 RP
Mar 24, 2026 04:45	servant714	CPPg++13.3.0	Success	64,848+7.21 RP
Mar 24, 2026 04:43	servant714	CPPg++13.3.0	Success	68,028+46.06 RP
Mar 24, 2026 04:43	servant714	CPPg++13.3.0	Success	99,074+0.91 RP
Mar 24, 2026 04:41	servant714	CPPg++13.3.0	Success	99,972+100.03 RP
Mar 24, 2026 04:38	servant714	CPPg++13.3.0	Error
Mar 24, 2026 04:35	servant714	CPPg++13.3.0	Error
Mar 24, 2026 04:30	servant714	CPPg++13.3.0	Error
Mar 24, 2026 04:22	servant714	CPPg++13.3.0	Error
Mar 24, 2026 04:21	servant714	CPPg++13.3.0	Error
Mar 24, 2026 04:18	servant714	CPPg++13.3.0	Error
Mar 24, 2026 04:14	servant714	CPPg++13.3.0	Error
Mar 24, 2026 04:13	servant714	CPPg++13.3.0	Error
Mar 24, 2026 04:12	servant714	CPPg++13.3.0	Error
Mar 24, 2026 04:11	servant714	CPPg++13.3.0	Error
Mar 24, 2026 04:07	servant714	CPPg++13.3.0	Error
Mar 24, 2026 04:06	servant714	CPPg++13.3.0	Error
Mar 24, 2026 04:06	servant714	CPPg++13.3.0	Error
Mar 24, 2026 04:04	servant714	CPPg++13.3.0	Error
Mar 24, 2026 04:03	servant714	CPPg++13.3.0	Error
Mar 24, 2026 04:00	servant714	CPPg++13.3.0	Error
Mar 24, 2026 03:57	servant714	CPPg++13.3.0	Error
Mar 24, 2026 03:55	servant714	CPPg++13.3.0	Error
Mar 24, 2026 03:53	servant714	CPPg++13.3.0	Error
Mar 24, 2026 03:50	servant714	CPPg++13.3.0	Error
Mar 24, 2026 03:43	servant714	CPPg++13.3.0	Error
Mar 24, 2026 03:41	servant714	CPPg++13.3.0	Error
Mar 24, 2026 03:41	servant714	CPPg++13.3.0	Error
Mar 24, 2026 03:28	servant714	CPPg++13.3.0	Error
Mar 24, 2026 03:27	servant714	CPPg++13.3.0	Error
Mar 24, 2026 03:11	servant714	CPPg++13.3.0	Error
Mar 24, 2026 03:10	servant714	CPPg++13.3.0	Error
Mar 24, 2026 03:08	servant714	CPPg++13.3.0	Error
Mar 24, 2026 03:08	servant714	CPPg++13.3.0	Error
Mar 24, 2026 03:06	servant714	CPPg++13.3.0	Error
Mar 24, 2026 03:02	servant714	CPPg++13.3.0	Error
Mar 24, 2026 03:02	servant714	CPPg++13.3.0	Error
Mar 24, 2026 03:00	servant714	CPPg++13.3.0	Error
Mar 24, 2026 02:51	Alyssa Verkade	RUSTrust-1.94.0	Success	37,761+127.82 RP
Mar 24, 2026 02:49	Alyssa Verkade	RUSTrust-1.94.0	Error
Mar 24, 2026 02:47	Alyssa Verkade	RUSTrust-1.94.0	Error
Mar 24, 2026 02:37	Alyssa Verkade	CPPg++13.3.0	Success	2,067,695
Mar 24, 2026 02:37	zielaj	CPPclang++18.1.3	Error
Mar 24, 2026 02:27	zielaj	CPPclang++18.1.3	Error
Mar 24, 2026 02:26	zielaj	CPPclang++18.1.3	Error
Mar 24, 2026 02:25	zielaj	CPPclang++18.1.3	Error
Mar 24, 2026 02:24	zielaj	CPPclang++18.1.3	Error
Mar 24, 2026 02:23	zielaj	CPPclang++18.1.3	Error
Mar 24, 2026 02:22	zielaj	CPPclang++18.1.3	Error
Mar 24, 2026 02:21	zielaj	CPPclang++18.1.3	Error
Mar 24, 2026 02:19	zielaj	CPPclang++18.1.3	Error
Mar 24, 2026 02:09	zielaj	CPPclang++18.1.3	Error
Mar 24, 2026 02:02	zielaj	CPPclang++18.1.3	Error
Mar 24, 2026 02:01	zielaj	CPPclang++18.1.3	Error
Mar 24, 2026 01:24	Dominique Garmier	CPPclang++18.1.3	Success	35,243
Mar 24, 2026 01:13	Ondřej Polanecký	CPPg++13.3.0	Success	8,448
Mar 24, 2026 01:13	Ondřej Polanecký	CPPclang++18.1.3	Success	9,621
Mar 24, 2026 00:59	Dominique Garmier	GOgo1.26.1	Success	56,387
Mar 24, 2026 00:58	Dominique Garmier	GOgo1.26.1	Success	55,858
Mar 24, 2026 00:54	Dominique Garmier	RUSTrust-1.94.0	Success	40,521
Mar 24, 2026 00:30	Alyssa Verkade	RUSTrust-1.94.0	Error
Mar 24, 2026 00:28	Alyssa Verkade	RUSTrust-1.94.0	Error
Mar 23, 2026 23:54	Ondřej Polanecký	CPPclang++18.1.3	Success	9,035
Mar 23, 2026 23:19	zielaj	CPPclang++18.1.3	Error
Mar 23, 2026 23:14	zielaj	CPPclang++18.1.3	Error
Mar 23, 2026 23:04	zielaj	CPPclang++18.1.3	Error
Mar 23, 2026 23:03	zielaj	CPPclang++18.1.3	Error
Mar 23, 2026 23:02	zielaj	CPPclang++18.1.3	Success	3,738
Mar 23, 2026 22:59	zielaj	CPPclang++18.1.3	Error
Mar 23, 2026 22:48	Alyssa Verkade	RUSTrust-1.94.0	Error
Mar 23, 2026 22:31	Alyssa Verkade	RUSTrust-1.94.0	Error
Mar 23, 2026 22:20	Dominique Garmier	CPPg++13.3.0	Success	39,331
Mar 23, 2026 22:16	Alyssa Verkade	RUSTrust-1.94.0	Success	76,436
Mar 23, 2026 21:58	Alyssa Verkade	RUSTrust-1.94.0	Success	118,600
Mar 23, 2026 21:58	Dominique Garmier	CPPclang++18.1.3	Success	38,055
Mar 23, 2026 21:55	Dominique Garmier	CPPclang++18.1.3	Error
Mar 23, 2026 21:24	Elijah Kin	CPPg++13.3.0	Success	65,268
Mar 23, 2026 21:23	Alyssa Verkade	RUSTrust-1.94.0	Success	101,394
Mar 23, 2026 21:20	Elijah Kin	CPPg++13.3.0	Success	68,657
Mar 23, 2026 21:05	Elijah Kin	CPPg++13.3.0	Error
Mar 23, 2026 21:03	Elijah Kin	CPPg++13.3.0	Error

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