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
Nov 1, 2025 13:58	Tan Lip Wei	CPPclang++18.1.3	Error
Nov 1, 2025 13:52	Tan Lip Wei	CPPclang++18.1.3	Error
Nov 1, 2025 13:49	Tan Lip Wei	CPPclang++18.1.3	Error
Nov 1, 2025 13:46	Tan Lip Wei	CPPclang++18.1.3	Error
Nov 1, 2025 13:46	Tan Lip Wei	CPPg++13.3.0	Error
Nov 1, 2025 13:43	Tan Lip Wei	CPPg++13.3.0	Error
Nov 1, 2025 13:25	Tan Lip Wei	CPPg++13.3.0	Success	37,663
Nov 1, 2025 13:22	Tan Lip Wei	CPPclang++18.1.3	Success	26,693+50.01 RP
Nov 1, 2025 13:15	Tan Lip Wei	CPPg++13.3.0	Error
Nov 1, 2025 04:39	Tan Lip Wei	CPPg++13.3.0	Error
Nov 1, 2025 04:38	Tan Lip Wei	CPPg++13.3.0	Error
Nov 1, 2025 03:04	Tan Lip Wei	CPPg++13.3.0	Error
Nov 1, 2025 03:02	Tan Lip Wei	CPPclang++18.1.3	Error
Oct 31, 2025 20:10	Dmitry	CPPg++13.3.0	Success	2,021,076+4.95 RP
Oct 31, 2025 15:41	Tan Lip Wei	CPPclang++18.1.3	Error
Oct 31, 2025 15:36	Tan Lip Wei	CPPg++13.3.0	Error
Oct 31, 2025 14:02	Tejas G.	CPPclang++18.1.3	Error
Oct 31, 2025 10:37	Tan Lip Wei	CPPg++13.3.0	Error
Oct 31, 2025 10:10	Tan Lip Wei	CPPg++13.3.0	Error
Oct 31, 2025 03:40	Tan Lip Wei	CPPg++13.3.0	Error
Oct 31, 2025 03:39	Tan Lip Wei	CPPg++13.3.0	Error
Oct 30, 2025 19:55	eandr-67	GOgo1.25.3	Error
Oct 30, 2025 19:44	eandr-67	GOgo1.25.3	Error
Oct 30, 2025 13:13	Artyom Mochalov	GOgo1.25.3	Success	273,282+36.59 RP
Oct 30, 2025 12:59	AnSa	CPPclang++18.1.3	Success	30,308
Oct 30, 2025 12:00	AnSa	CPPg++13.3.0	Success	33,003
Oct 30, 2025 07:05	AnSa	CPPg++13.3.0	Success	32,832
Oct 30, 2025 06:57	AnSa	CPPg++13.3.0	Success	32,385
Oct 30, 2025 06:52	Anton Skvortsov	RUSTrust-1.90.0	Success	96,680
Oct 30, 2025 06:51	AnSa	CPPg++13.3.0	Success	40,483
Oct 30, 2025 06:51	Anton Skvortsov	RUSTrust-1.90.0	Success	132,988
Oct 30, 2025 06:50	Anton Skvortsov	RUSTrust-1.90.0	Success	96,608
Oct 30, 2025 06:44	Anton Skvortsov	RUSTrust-1.90.0	Success	518,110
Oct 30, 2025 06:38	Anton Skvortsov	RUSTrust-1.90.0	Success	93,696
Oct 30, 2025 06:32	Anton Skvortsov	RUSTrust-1.90.0	Success	90,431+56.42 RP
Oct 30, 2025 06:30	Anton Skvortsov	RUSTrust-1.90.0	Success	184,616+29.04 RP
Oct 30, 2025 06:28	Anton Skvortsov	RUSTrust-1.90.0	Success	398,002+25.13 RP
Oct 30, 2025 05:36	Wizarek	CSHARP9.0.10	Error
Oct 30, 2025 05:31	Wizarek	CSHARP9.0.10	Error
Oct 30, 2025 05:29	Mike Tru	CSHARP9.0.10	Success	357,617+27.96 RP
Oct 30, 2025 05:29	Wizarek	CSHARP9.0.10	Error
Oct 30, 2025 05:28	Wizarek	CSHARP9.0.10	Error
Oct 30, 2025 05:26	Mike Tru	CSHARP9.0.10	Error
Oct 30, 2025 05:24	Wizarek	CSHARP9.0.10	Error
Oct 30, 2025 05:23	Wizarek	CSHARP9.0.10	Error
Oct 30, 2025 05:21	Wizarek	CSHARP9.0.10	Error
Oct 30, 2025 05:19	Wizarek	CSHARP9.0.10	Error
Oct 30, 2025 05:17	Wizarek	CSHARP9.0.10	Error
Oct 30, 2025 05:12	Wizarek	CSHARP9.0.10	Error
Oct 30, 2025 04:58	Wizarek	CSHARP9.0.10	Error
Oct 30, 2025 04:57	Wizarek	CSHARP9.0.10	Error
Oct 30, 2025 04:52	Wizarek	CSHARP9.0.10	Error
Oct 30, 2025 04:51	Dmitrii Kopeikin	RUSTrust-1.90.0	Success	369,870+27.04 RP
Oct 30, 2025 02:49	Tejas G.	CPPclang++18.1.3	Error
Oct 30, 2025 02:48	Tejas G.	CPPclang++18.1.3	Error
Oct 30, 2025 02:47	Tejas G.	CPPclang++18.1.3	Error
Oct 30, 2025 02:07	Tejas G.	CPPclang++18.1.3	Error
Oct 30, 2025 02:06	Tejas G.	CPPclang++18.1.3	Error
Oct 30, 2025 00:49	Alexander Kovalyov	CPPg++13.3.0	Success	98,328
Oct 30, 2025 00:16	Alexander Kovalyov	CPPg++13.3.0	Success	54,682
Oct 30, 2025 00:05	Alexander Kovalyov	CPPg++13.3.0	Success	54,143
Oct 29, 2025 23:54	Alexander Kovalyov	CPPg++13.3.0	Success	43,209+1.32 RP
Oct 29, 2025 23:46	Alexander Kovalyov	CPPg++13.3.0	Success	97,787
Oct 29, 2025 23:17	Alexander Kovalyov	CPPg++13.3.0	Success	43,456+39.87 RP
Oct 29, 2025 23:11	Alexander Kovalyov	CPPg++13.3.0	Success	57,866
Oct 29, 2025 23:04	Alexander Kovalyov	CPPg++13.3.0	Success	57,815
Oct 29, 2025 23:00	Alexander Kovalyov	CPPg++13.3.0	Success	56,902
Oct 29, 2025 22:57	Alexander Kovalyov	CPPg++13.3.0	Error
Oct 29, 2025 22:46	Alexander Kovalyov	CPPg++13.3.0	Success	52,573
Oct 29, 2025 22:40	Alexander Kovalyov	CPPg++13.3.0	Success	52,563+3.44 RP
Oct 29, 2025 22:22	Alexander Kovalyov	CPPg++13.3.0	Success	53,532+17.50 RP
Oct 29, 2025 22:21	Anton Razmakhnin	CSHARP9.0.10	Success	233,442
Oct 29, 2025 22:08	Alexander Kovalyov	CPPg++13.3.0	Success	59,067+150.43 RP
Oct 29, 2025 21:51	Alexander Kovalyov	CPPg++13.3.0	Success	529,877+14.03 RP
Oct 29, 2025 21:49	Anton Razmakhnin	CSHARP9.0.10	Success	225,170+17.07 RP
Oct 29, 2025 21:44	Alexander Kovalyov	CPPg++13.3.0	Error
Oct 29, 2025 21:43	Alexander Kovalyov	CPPg++13.3.0	Error
Oct 29, 2025 21:37	Alexander Kovalyov	CPPg++13.3.0	Error
Oct 29, 2025 21:28	Alexander Kovalyov	CPPg++13.3.0	Success	2,066,016+4.84 RP
Oct 29, 2025 20:46	syncname	GOgo1.25.3	Success	74,023+76.72 RP
Oct 29, 2025 20:28	syncname	GOgo1.25.3	Success	171,311+58.37 RP
Oct 29, 2025 18:37	Savemaker	GOgo1.25.3	Success	273,474+36.57 RP
Oct 29, 2025 16:31	Max Lyuchin	GOgo1.25.3	Success	273,350+36.58 RP
Oct 29, 2025 15:33	Anton Razmakhnin	CSHARP9.0.10	Success	1,335,921
Oct 29, 2025 14:01	Anton Razmakhnin	CSHARP9.0.10	Error
Oct 29, 2025 13:49	Tejas G.	CPPclang++18.1.3	Error
Oct 29, 2025 13:41	Anton Razmakhnin	CSHARP9.0.10	Success	365,755+27.34 RP
Oct 29, 2025 13:40	Tejas G.	CPPclang++18.1.3	Error
Oct 29, 2025 13:39	Tejas G.	CPPclang++18.1.3	Error
Oct 29, 2025 13:35	Tejas G.	CPPclang++18.1.3	Error
Oct 29, 2025 13:18	Tejas G.	CPPclang++18.1.3	Error
Oct 29, 2025 13:08	Tejas G.	CPPclang++18.1.3	Error
Oct 29, 2025 13:05	Tejas G.	CPPclang++18.1.3	Error
Oct 29, 2025 12:31	eandr-67	GOgo1.25.3	Error
Oct 29, 2025 11:48	eandr-67	GOgo1.25.3	Error
Oct 29, 2025 11:19	eandr-67	GOgo1.25.3	Success	272,793
Oct 29, 2025 11:19	eandr-67	GOgo1.25.3	Success	272,395+0.13 RP
Oct 29, 2025 11:17	eandr-67	GOgo1.25.3	Success	273,348+36.58 RP
Oct 29, 2025 10:39	Tejas G.	CPPclang++18.1.3	Error
Oct 29, 2025 10:15	Tejas G.	CPPclang++18.1.3	Error

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