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 25, 2025 09:22	Ham-Ham	CPPg++13.3.0	Success	51,731+1.61 RP
Nov 25, 2025 09:18	Ham-Ham	CPPg++13.3.0	Success	52,186
Nov 25, 2025 09:17	Ham-Ham	CPPg++13.3.0	Success	81,169
Nov 25, 2025 09:17	Ham-Ham	CPPg++13.3.0	Success	52,185
Nov 25, 2025 09:11	Ham-Ham	CPPg++13.3.0	Success	52,165+30.98 RP
Nov 25, 2025 09:10	Ham-Ham	CPPg++13.3.0	Error
Nov 25, 2025 09:09	Ham-Ham	CPPg++13.3.0	Success	81,137
Nov 25, 2025 08:39	Ham-Ham	CPPg++13.3.0	Error
Nov 25, 2025 08:38	Ham-Ham	CPPg++13.3.0	Error
Nov 25, 2025 08:34	Ham-Ham	CPPg++13.3.0	Success	62,242
Nov 25, 2025 08:33	Ham-Ham	CPPg++13.3.0	Success	62,232
Nov 25, 2025 08:32	Ham-Ham	CPPg++13.3.0	Error
Nov 25, 2025 08:31	Ham-Ham	CPPg++13.3.0	Success	62,220+0.04 RP
Nov 25, 2025 08:31	Ham-Ham	CPPg++13.3.0	Error
Nov 25, 2025 08:30	Ham-Ham	CPPg++13.3.0	Error
Nov 25, 2025 08:29	Ham-Ham	CPPg++13.3.0	Error
Nov 25, 2025 08:28	Ham-Ham	CPPg++13.3.0	Success	72,210
Nov 25, 2025 08:27	Ham-Ham	CPPg++13.3.0	Success	72,143
Nov 25, 2025 08:26	Ham-Ham	CPPg++13.3.0	Success	64,726
Nov 25, 2025 08:25	Ham-Ham	CPPg++13.3.0	Success	64,766
Nov 25, 2025 08:24	Ham-Ham	CPPg++13.3.0	Success	64,736
Nov 25, 2025 08:22	Ham-Ham	CPPg++13.3.0	Error
Nov 25, 2025 08:21	Ham-Ham	CPPg++13.3.0	Error
Nov 25, 2025 08:20	Ham-Ham	CPPg++13.3.0	Success	78,774
Nov 25, 2025 08:18	Ham-Ham	CPPg++13.3.0	Error
Nov 25, 2025 08:17	Ham-Ham	CPPg++13.3.0	Success	62,236
Nov 25, 2025 08:16	Ham-Ham	CPPg++13.3.0	Success	62,237
Nov 25, 2025 08:14	Ham-Ham	CPPg++13.3.0	Success	62,237+6.16 RP
Nov 25, 2025 08:12	Ham-Ham	CPPg++13.3.0	Success	72,888
Nov 25, 2025 08:10	Ham-Ham	CPPg++13.3.0	Success	64,718+1.35 RP
Nov 25, 2025 08:07	Ham-Ham	CPPg++13.3.0	Error
Nov 25, 2025 08:06	Ham-Ham	CPPg++13.3.0	Error
Nov 25, 2025 08:05	Ham-Ham	CPPg++13.3.0	Error
Nov 25, 2025 07:59	Ham-Ham	CPPg++13.3.0	Success	87,960
Nov 25, 2025 07:54	Ham-Ham	CPPg++13.3.0	Error
Nov 25, 2025 07:49	Ham-Ham	CPPg++13.3.0	Success	97,774
Nov 24, 2025 21:34	Ham-Ham	CPPg++13.3.0	Success	82,346
Nov 24, 2025 21:31	Ham-Ham	CPPg++13.3.0	Success	82,425
Nov 24, 2025 21:30	Ham-Ham	CPPg++13.3.0	Error
Nov 24, 2025 21:28	Ham-Ham	CPPg++13.3.0	Success	66,573
Nov 24, 2025 21:27	Ham-Ham	CPPg++13.3.0	Success	82,413
Nov 24, 2025 21:25	Ham-Ham	CPPg++13.3.0	Success	82,310
Nov 24, 2025 20:55	Ham-Ham	CPPg++13.3.0	Error
Nov 24, 2025 20:53	Ham-Ham	CPPg++13.3.0	Error
Nov 24, 2025 20:51	Ham-Ham	CPPg++13.3.0	Success	65,290+19.71 RP
Nov 24, 2025 20:49	Ham-Ham	CPPg++13.3.0	Success	74,935+79.86 RP
Nov 24, 2025 20:47	Ham-Ham	CPPg++13.3.0	Success	186,613+53.59 RP
Nov 24, 2025 13:03	Jeffrey Jian	CPPg++13.3.0	Success	103,456
Nov 24, 2025 13:01	Jeffrey Jian	CPPg++13.3.0	Success	106,758
Nov 24, 2025 13:00	Jeffrey Jian	CPPg++13.3.0	Success	102,327
Nov 24, 2025 13:00	Jeffrey Jian	CPPg++13.3.0	Success	102,626
Nov 24, 2025 12:56	Jeffrey Jian	CPPg++13.3.0	Success	102,293+27.53 RP
Nov 24, 2025 12:53	Jeffrey Jian	CPPg++13.3.0	Error
Nov 24, 2025 11:02	Jeffrey Jian	CPPg++13.3.0	Success	142,387+44.92 RP
Nov 24, 2025 10:51	Jeffrey Jian	CPPg++13.3.0	Success	395,150+20.47 RP
Nov 24, 2025 10:49	Jeffrey Jian	CPPg++13.3.0	Error
Nov 24, 2025 10:44	Jeffrey Jian	CPPg++13.3.0	Success	2,069,446
Nov 24, 2025 10:35	Jeffrey Jian	CPPg++13.3.0	Success	2,068,986+4.83 RP
Nov 24, 2025 10:11	Jeffrey Jian	CPPg++13.3.0	Error
Nov 24, 2025 10:09	Jeffrey Jian	CPPg++13.3.0	Error
Nov 23, 2025 18:11	j3o1	CPPg++13.3.0	Success	42,539+57.42 RP
Nov 23, 2025 18:06	j3o1	CPPg++13.3.0	Success	75,280
Nov 23, 2025 17:06	j3o1	CPPg++13.3.0	Success	72,304
Nov 23, 2025 17:02	j3o1	CPPg++13.3.0	Error
Nov 23, 2025 16:56	j3o1	CPPg++13.3.0	Success	75,450
Nov 23, 2025 06:37	Rac	CPPg++13.3.0	Success	35,616+35.79 RP
Nov 23, 2025 06:32	Rac	CPPclang++18.1.3	Success	40,820+68.83 RP
Nov 23, 2025 06:31	Rac	CPPclang++18.1.3	Success	56,772+176.14 RP
Nov 21, 2025 09:03	Rajarshi Basu	CPPg++13.3.0	Error
Nov 21, 2025 09:01	Rajarshi Basu	CPPg++13.3.0	Error
Nov 21, 2025 08:59	Rajarshi Basu	CPPg++13.3.0	Error
Nov 21, 2025 08:51	Rajarshi Basu	CPPg++13.3.0	Success	53,454+0.05 RP
Nov 21, 2025 08:50	Rajarshi Basu	CPPg++13.3.0	Error
Nov 21, 2025 08:41	Rajarshi Basu	CPPg++13.3.0	Success	53,478
Nov 21, 2025 08:40	Rajarshi Basu	CPPg++13.3.0	Success	53,469+2.90 RP
Nov 20, 2025 17:39	Nico	CPPg++13.3.0	Success	55,834+174.21 RP
Nov 20, 2025 15:41	Nico	CPPg++13.3.0	Success	2,045,637+4.89 RP
Nov 20, 2025 12:23	izotoff	CPPg++13.3.0	Success	2,065,976
Nov 20, 2025 12:22	izotoff	CPPg++13.3.0	Success	2,064,435
Nov 19, 2025 13:52	PinKod	CPPg++13.3.0	Error
Nov 19, 2025 13:49	PinKod	CPPg++13.3.0	Error
Nov 19, 2025 13:44	PinKod	CPPg++13.3.0	Success	271,911+11.46 RP
Nov 19, 2025 13:42	PinKod	CPPg++13.3.0	Success	395,071+20.47 RP
Nov 19, 2025 13:33	PinKod	CPPg++13.3.0	Success	2,066,218+4.84 RP
Nov 19, 2025 10:46	Sina	CPPg++13.3.0	Success	145,131
Nov 19, 2025 10:43	Sina	CPPg++13.3.0	Success	142,544
Nov 19, 2025 10:43	Sina	CPPg++13.3.0	Success	151,211
Nov 19, 2025 10:37	Sina	CPPg++13.3.0	Success	142,826
Nov 19, 2025 10:36	Sina	CPPg++13.3.0	Success	154,319
Nov 19, 2025 10:35	Sina	CPPg++13.3.0	Success	151,176
Nov 19, 2025 10:31	Sina	CPPg++13.3.0	Error
Nov 19, 2025 10:30	Sina	CPPg++13.3.0	Error
Nov 17, 2025 11:15	Andrey	GOgo1.25.4	Success	87,564
Nov 17, 2025 10:15	Andrey	GOgo1.25.4	Success	104,722
Nov 17, 2025 10:11	Andrey	GOgo1.25.4	Success	85,785+18.47 RP
Nov 17, 2025 09:56	Andrey	GOgo1.25.4	Success	101,932+57.26 RP
Nov 17, 2025 09:52	Andrey	GOgo1.25.4	Error
Nov 17, 2025 09:34	Andrey	GOgo1.25.4	Error
Nov 12, 2025 19:00	izotoff	GOgo1.11	Success	61,795
Nov 12, 2025 16:06	izotoff	GOgo1.11	Success	58,507

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