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
Apr 4, 2025 05:43	NoSIMD_C#	CPPclang++18.1.3	Success	50,100
Apr 3, 2025 07:44	Kavya Chopra	CPPclang++18.1.3	Success	1,827,350+5.47 RP
Apr 2, 2025 17:53	ndren	CPPg++13.2.0	Error
Apr 2, 2025 17:52	ndren	CPPg++13.2.0	Success	75,910
Apr 2, 2025 17:48	ndren	CPPg++13.2.0	Success	59,233+21.88 RP
Apr 2, 2025 17:47	ndren	CPPg++13.2.0	Success	68,051+18.56 RP
Apr 2, 2025 17:46	ndren	CPPg++13.2.0	Error
Apr 2, 2025 17:44	ndren	CPPg++13.2.0	Success	78,518
Apr 2, 2025 17:43	ndren	CPPg++13.2.0	Success	77,891+1.84 RP
Apr 2, 2025 17:41	ndren	CPPclang++18.1.3	Success	86,683
Apr 2, 2025 17:40	ndren	CPPg++9.4.0	Success	79,022+51.90 RP
Apr 2, 2025 17:32	ndren	CPPg++9.4.0	Error
Apr 1, 2025 11:50	Dmitrii Kravchenko	CPPclang++18.1.3	Success	50,121
Apr 1, 2025 09:54	Dmitrii Kravchenko	CPPclang++18.1.3	Success	51,784
Apr 1, 2025 09:52	Dmitrii Kravchenko	CPPclang++18.1.3	Error
Apr 1, 2025 09:50	Dmitrii Kravchenko	CPPclang++18.1.3	Success	61,215
Apr 1, 2025 09:49	Dmitrii Kravchenko	CPPclang++18.1.3	Error
Apr 1, 2025 09:21	Dmitrii Kravchenko	CPPclang++18.1.3	Success	75,464
Apr 1, 2025 09:15	Dmitrii Kravchenko	CPPclang++18.1.3	Success	75,461
Mar 31, 2025 19:26	Dmitrii Kravchenko	CPPclang++18.1.3	Success	69,177
Mar 31, 2025 19:25	Dmitrii Kravchenko	CPPclang++18.1.3	Success	71,171
Mar 31, 2025 14:49	Dmitrii Kravchenko	CPPclang++18.1.3	Success	68,367
Mar 31, 2025 14:43	Dmitrii Kravchenko	CPPclang++18.1.3	Success	70,559
Mar 31, 2025 12:45	Dmitrii Kravchenko	CPPclang++18.1.3	Error
Mar 30, 2025 21:53	Dmitrii Kravchenko	CPPclang++18.1.3	Error
Mar 30, 2025 21:49	Dmitrii Kravchenko	CPPclang++18.1.3	Success	56,577
Mar 30, 2025 21:17	Dmitrii Kravchenko	CPPclang++18.1.3	Success	49,078
Mar 30, 2025 21:13	Dmitrii Kravchenko	CPPclang++18.1.3	Success	62,899
Mar 30, 2025 21:11	Dmitrii Kravchenko	CPPclang++18.1.3	Error
Mar 30, 2025 21:08	Dmitrii Kravchenko	CPPclang++18.1.3	Error
Mar 30, 2025 21:04	Dmitrii Kravchenko	CPPclang++18.1.3	Error
Mar 30, 2025 19:39	Dmitrii Kravchenko	CPPclang++18.1.3	Success	67,239
Mar 30, 2025 19:35	Dmitrii Kravchenko	CPPclang++18.1.3	Success	69,817
Mar 30, 2025 07:23	Emanuele Bolognesi	RUSTrust-1.85.1	Success	381,005+1.17 RP
Mar 29, 2025 21:13	Dmitrii Kravchenko	CPPclang++18.1.3	Success	45,337
Mar 29, 2025 21:01	Dmitrii Kravchenko	CPPclang++18.1.3	Success	45,593
Mar 29, 2025 01:49	Emanuele Bolognesi	RUSTrust-1.85.1	Success	398,833+25.07 RP
Mar 28, 2025 10:13	NoSIMD_C#	CSHARP9.0.3	Success	64,880
Mar 28, 2025 10:12	NoSIMD_C#	CSHARP9.0.3	Success	64,980
Mar 27, 2025 02:04	Steve Bronder	CPPclang++18.1.3	Success	116,397+80.44 RP
Mar 27, 2025 01:36	Steve Bronder	CPPclang++18.1.3	Error
Mar 25, 2025 22:12	Drew Garcia	CPPclang++18.1.3	Success	65,271
Mar 25, 2025 22:08	Drew Garcia	CPPclang++18.1.3	Success	59,030
Mar 24, 2025 15:10	Foo Chuan Le, Nicholas	CPPclang++18.1.3	Success	1,833,555
Mar 24, 2025 15:10	Foo Chuan Le, Nicholas	CPPg++13.2.0	Success	1,830,209
Mar 24, 2025 14:57	Foo Chuan Le, Nicholas	CPPclang++18.1.3	Error
Mar 24, 2025 14:56	Foo Chuan Le, Nicholas	CPPclang++18.1.3	Success	1,828,208+5.47 RP
Mar 23, 2025 17:25	Alexander Kosachev	ZIG0.14.0	Success	53,904+0.26 RP
Mar 23, 2025 17:21	Alexander Kosachev	ZIG0.14.0	Success	387,390
Mar 22, 2025 21:05	Matthew Downey	RUSTrust-1.85.0	Success	83,365
Mar 22, 2025 20:39	Matthew Downey	RUSTrust-1.85.0	Success	121,573
Mar 22, 2025 20:37	Matthew Downey	RUSTrust-1.85.0	Success	121,517
Mar 22, 2025 20:27	Matthew Downey	RUSTrust-1.85.0	Success	173,116
Mar 22, 2025 20:20	Matthew Downey	RUSTrust-1.85.0	Success	157,553
Mar 22, 2025 13:25	Matthew Downey	RUSTrust-1.85.0	Success	166,622
Mar 20, 2025 15:31	neon	CPPclang++18.1.3	Error
Mar 20, 2025 11:35	Adam Pelc	CPPclang++18.1.3	Success	1,826,358+5.48 RP
Mar 19, 2025 15:42	Brandon Tang	CPPclang++18.1.3	Success	60,742
Mar 19, 2025 15:36	Brandon Tang	CPPg++13.2.0	Success	55,032
Mar 19, 2025 15:34	Brandon Tang	CPPg++13.2.0	Success	55,051
Mar 19, 2025 11:10	Brandon Tang	CPPg++13.2.0	Success	59,319
Mar 19, 2025 11:08	Brandon Tang	CPPg++13.2.0	Error
Mar 19, 2025 10:55	Brandon Tang	CPPg++13.2.0	Error
Mar 19, 2025 10:50	Brandon Tang	CPPg++13.2.0	Success	63,290
Mar 19, 2025 10:45	Brandon Tang	CPPg++13.2.0	Success	53,277+4.24 RP
Mar 19, 2025 10:42	Brandon Tang	CPPg++13.2.0	Success	56,395
Mar 19, 2025 10:39	Brandon Tang	CPPg++13.2.0	Success	54,508+80.71 RP
Mar 19, 2025 10:37	Brandon Tang	CPPg++13.2.0	Success	97,328+77.09 RP
Mar 19, 2025 10:08	Brandon Tang	CPPg++13.2.0	Success	389,781+20.19 RP
Mar 19, 2025 10:05	Brandon Tang	CPPg++13.2.0	Success	1,828,686+5.47 RP
Mar 18, 2025 02:23	tch1001	CPPclang++18.1.3	Success	1,826,316+5.48 RP
Mar 18, 2025 02:08	tch1001	CPPclang++18.1.3	Error
Mar 16, 2025 16:16	Aniruddha Deb	CPPg++13.2.0	Error
Mar 16, 2025 16:12	Aniruddha Deb	CPPg++13.2.0	Success	5,935
Mar 16, 2025 14:47	Aniruddha Deb	CPPg++13.2.0	Success	5,977
Mar 15, 2025 09:18	Aryan Jain	CPPclang++18.1.3	Success	206,587
Mar 15, 2025 09:17	Aryan Jain	CPPclang++18.1.3	Success	217,858
Mar 9, 2025 19:57	Aniruddha Deb	CPPclang++18.1.3	Success	6,056
Mar 9, 2025 19:55	Aniruddha Deb	CPPclang++18.1.3	Error
Mar 9, 2025 19:52	Aniruddha Deb	CPPg++13.2.0	Success	6,001
Mar 9, 2025 19:46	Aniruddha Deb	CPPg++13.2.0	Success	5,932+602.11 RP
Mar 8, 2025 14:25	alfaix	CPPg++13.2.0	Error
Mar 8, 2025 14:23	alfaix	CPPclang++18.1.3	Success	36,841
Mar 8, 2025 14:13	alfaix	CPPclang++18.1.3	Success	36,838+77.85 RP
Mar 7, 2025 19:38	Steve Bronder	CPPclang++18.1.3	Success	1,827,873
Mar 7, 2025 19:37	Steve Bronder	CPPclang++18.1.3	Error
Mar 7, 2025 04:25	Steve Bronder	CPPclang++18.1.3	Success	1,826,535+5.47 RP
Mar 6, 2025 22:15	Aniruddha Deb	CPPg++13.2.0	Error
Mar 6, 2025 22:14	Aniruddha Deb	CPPclang++18.1.3	Error
Mar 6, 2025 22:13	Aniruddha Deb	CPPg++13.2.0	Error
Mar 6, 2025 19:10	Ian Mckibben	CPPclang++18.1.3	Error
Mar 6, 2025 19:08	Ian Mckibben	CPPclang++18.1.3	Success	29,986
Mar 6, 2025 19:08	Ian Mckibben	CPPg++13.2.0	Success	31,213
Mar 6, 2025 19:07	Ian Mckibben	CPPclang++18.1.3	Success	29,986
Mar 6, 2025 19:07	Ian Mckibben	CPPclang++18.1.3	Success	29,973
Mar 6, 2025 19:05	Ian Mckibben	CPPclang++18.1.3	Success	30,130
Mar 6, 2025 18:53	Ian Mckibben	CPPclang++18.1.3	Success	47,006
Mar 6, 2025 17:57	Keefe	CPPclang++18.1.3	Error
Mar 6, 2025 17:48	Keefe	CPPclang++18.1.3	Error
Mar 6, 2025 17:45	Keefe	CPPclang++18.1.3	Error

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