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 22, 2026 10:14	wn	CPPg++14.2.0	Success	3,613
Apr 22, 2026 10:01	wn	CPPg++13.3.0	Success	3,493
Apr 22, 2026 10:00	wn	CPPg++13.3.0	Success	3,492
Apr 22, 2026 09:47	wn	CPPg++13.3.0	Success	4,372
Apr 22, 2026 09:42	wn	CPPg++13.3.0	Success	4,719
Apr 22, 2026 09:38	wn	CPPg++13.3.0	Success	4,867
Apr 22, 2026 09:33	wn	CPPg++13.3.0	Success	4,652
Apr 22, 2026 09:31	wn	CPPg++13.3.0	Error
Apr 22, 2026 09:20	wn	CPPg++13.3.0	Success	4,761
Apr 22, 2026 09:07	wn	CPPg++13.3.0	Success	4,767
Apr 22, 2026 08:39	wn	CPPg++13.3.0	Success	4,464
Apr 22, 2026 08:13	Tanishq Parihar	CPPg++10.5.0	Success	2,075,670+4.82 RP
Apr 22, 2026 06:32	wn	CPPg++13.3.0	Error
Apr 22, 2026 06:28	wn	CPPclang++18.1.3	Error
Apr 22, 2026 06:28	wn	CPPg++14.2.0	Error
Apr 22, 2026 06:08	wn	CPPg++13.3.0	Error
Apr 22, 2026 06:06	wn	CPPg++14.2.0	Success	3,459+24.86 RP
Apr 22, 2026 06:05	wn	CPPg++13.3.0	Success	6,226
Apr 22, 2026 05:55	wn	CPPg++13.3.0	Success	4,256
Apr 22, 2026 05:50	wn	CPPg++13.3.0	Success	4,538
Apr 22, 2026 05:46	wn	CPPg++13.3.0	Success	3,541
Apr 22, 2026 05:39	wn	CPPg++13.3.0	Error
Apr 22, 2026 05:36	wn	CPPg++13.3.0	Success	3,668
Apr 22, 2026 05:34	wn	CPPg++13.3.0	Success	3,788
Apr 22, 2026 05:30	wn	CPPg++13.3.0	Success	3,489+50.04 RP
Apr 22, 2026 05:26	wn	CPPg++13.3.0	Success	3,770
Apr 22, 2026 05:24	wn	CPPg++13.3.0	Error
Apr 22, 2026 05:22	wn	CPPg++13.3.0	Success	3,766
Apr 22, 2026 05:19	wn	CPPclang++18.1.3	Success	4,140
Apr 22, 2026 05:16	wn	CPPg++14.2.0	Success	3,568
Apr 22, 2026 05:09	wn	CPPg++13.3.0	Success	3,551+0.79 RP
Apr 22, 2026 05:08	wn	CPPg++13.3.0	Error
Apr 22, 2026 05:05	wn	CPPg++13.3.0	Success	3,657
Apr 22, 2026 04:45	wn	CPPg++14.2.0	Success	3,646
Apr 22, 2026 04:43	wn	CPPg++14.2.0	Success	3,746
Apr 22, 2026 04:40	wn	CPPg++14.2.0	Error
Apr 22, 2026 04:34	wn	CPPg++14.2.0	Success	3,731
Apr 22, 2026 02:19	Taylor Dettling	RUSTrust-1.95.0	Success	7,354+233.42 RP
Apr 22, 2026 01:37	Taylor Dettling	RUSTrust-1.95.0	Success	8,878+151.06 RP
Apr 22, 2026 01:35	Taylor Dettling	RUSTrust-1.95.0	Success	10,253+511.98 RP
Apr 22, 2026 00:58	Taylor Dettling	RUSTrust-1.95.0	Success	21,582+46.91 RP
Apr 22, 2026 00:55	Taylor Dettling	RUSTrust-1.94.1	Success	24,013+118.89 RP
Apr 22, 2026 00:40	Taylor Dettling	RUSTrust-1.94.1	Success	33,608+102.97 RP
Apr 22, 2026 00:11	Taylor Dettling	RUSTrust-1.94.1	Success	51,499
Apr 21, 2026 22:52	Ben	CPPg++14.2.0	Success	25,100
Apr 21, 2026 20:45	Charles Cabergs	CPPg++13.3.0	Success	20,993
Apr 21, 2026 20:14	Ben	CPPclang++20.1.2	Success	20,720+24.20 RP
Apr 21, 2026 19:43	Charles Cabergs	CPPg++13.3.0	Success	20,015
Apr 21, 2026 18:52	Yuriy Lyfenko	CPPg++14.2.0	Success	4,332
Apr 21, 2026 18:49	Yuriy Lyfenko	CPPg++14.2.0	Success	4,644
Apr 21, 2026 18:48	Yuriy Lyfenko	CPPclang++20.1.2	Success	5,096
Apr 21, 2026 18:21	Mohamed Elmahdi Bendimerad	CPPg++10.5.0	Success	78,989+121.77 RP
Apr 21, 2026 18:13	Mohamed Elmahdi Bendimerad	CPPg++10.5.0	Success	2,068,392+4.83 RP
Apr 21, 2026 17:24	Ben	CPPclang++20.1.2	Success	21,814+30.34 RP
Apr 21, 2026 17:18	Stefan Antoniu Oprea	CPPg++10.5.0	Success	61,642+8.79 RP
Apr 21, 2026 17:12	Stefan Antoniu Oprea	CPPg++10.5.0	Success	65,173+148.61 RP
Apr 21, 2026 17:06	Stefan Antoniu Oprea	CPPg++10.5.0	Success	2,070,995+4.83 RP
Apr 21, 2026 15:39	Charles Cabergs	CPPg++13.3.0	Success	20,346
Apr 21, 2026 10:10	Ben	CPPclang++20.1.2	Success	23,656
Apr 21, 2026 10:09	Ben	CPPclang++20.1.2	Success	23,360+2.70 RP
Apr 21, 2026 10:02	Ben	CPPclang++20.1.2	Success	23,651
Apr 21, 2026 10:01	Ben	CPPclang++20.1.2	Success	23,697
Apr 21, 2026 07:11	Charles Cabergs	CPPg++13.3.0	Success	28,298
Apr 21, 2026 04:19	olliecrow	CPPclang++20.1.2	Success	16,025
Apr 21, 2026 03:30	zielaj	CPPclang++20.1.2	Error
Apr 21, 2026 03:20	zielaj	CPPclang++20.1.2	Error
Apr 21, 2026 03:02	Adewuyi Israel	CPPg++10.5.0	Success	392,893+20.62 RP
Apr 21, 2026 02:58	zielaj	CPPclang++20.1.2	Error
Apr 21, 2026 02:57	Adewuyi Israel	CPPg++10.5.0	Success	2,068,943
Apr 21, 2026 02:56	Adewuyi Israel	CPPg++13.3.0	Error
Apr 21, 2026 02:55	zielaj	CPPclang++20.1.2	Error
Apr 21, 2026 02:54	Adewuyi Israel	CPPg++10.5.0	Error
Apr 21, 2026 02:53	zielaj	CPPclang++18.1.3	Error
Apr 21, 2026 02:53	Adewuyi Israel	CPPg++10.5.0	Error
Apr 21, 2026 02:51	zielaj	CPPclang++19.1.1	Error
Apr 21, 2026 02:51	zielaj	CPPclang++20.1.2	Error
Apr 21, 2026 02:49	zielaj	CPPclang++18.1.3	Success	3,474
Apr 21, 2026 02:46	zielaj	CPPclang++20.1.2	Error
Apr 21, 2026 02:01	cashkaru	CPPg++10.5.0	Success	61,627
Apr 21, 2026 01:59	cashkaru	CPPclang++20.1.2	Success	61,310+20.22 RP
Apr 21, 2026 01:28	cashkaru	CPPclang++20.1.2	Success	70,881
Apr 21, 2026 01:13	cashkaru	CPPclang++20.1.2	Success	69,985+138.05 RP
Apr 21, 2026 00:47	cashkaru	CPPg++10.5.0	Success	2,068,718
Apr 21, 2026 00:46	cashkaru	CPPg++10.5.0	Success	2,066,550+4.84 RP
Apr 20, 2026 23:36	Taylor Dettling	RUSTrust-1.95.0	Success	51,394+13.60 RP
Apr 20, 2026 23:34	Taylor Dettling	RUSTrust-1.95.0	Error
Apr 20, 2026 23:31	Taylor Dettling	RUSTrust-1.95.0	Success	55,257+23.80 RP
Apr 20, 2026 23:30	Taylor Dettling	RUSTrust-1.95.0	Success	63,624+157.17 RP
Apr 20, 2026 22:22	Josu San Martin	CPPclang++17.0.6	Success	5,045
Apr 20, 2026 22:19	Josu San Martin	CPPclang++14.0.6	Success	5,301
Apr 20, 2026 22:18	Josu San Martin	CPPg++14.2.0	Success	5,791
Apr 20, 2026 22:15	Josu San Martin	CPPclang++19.1.1	Success	4,948+8.54 RP
Apr 20, 2026 22:14	Josu San Martin	CPPclang++20.1.2	Success	5,104
Apr 20, 2026 21:54	olliecrow	CPPclang++18.1.3	Success	5,915
Apr 20, 2026 21:53	olliecrow	CPPg++10.5.0	Success	8,180
Apr 20, 2026 21:22	Charles Cabergs	CPPg++13.3.0	Success	20,078
Apr 20, 2026 20:19	Charles Cabergs	CPPg++13.3.0	Success	63,333
Apr 20, 2026 18:26	Charles Cabergs	CPPg++13.3.0	Success	20,120
Apr 20, 2026 16:57	olliecrow	CPPclang++18.1.3	Error
Apr 20, 2026 16:55	olliecrow	CPPclang++18.1.3	Error

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