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
May 2, 2026 12:48	limanjun99	CPPg++14.2.0	Success	46,070
May 1, 2026 19:43	Victor Mercklé	CPPg++14.2.0	Success	10,817+36.92 RP
May 1, 2026 16:37	Hung T.Nguyen	CPPg++10.5.0	Success	69,941
May 1, 2026 16:37	Hung T.Nguyen	CPPg++10.5.0	Success	70,606
May 1, 2026 16:35	Hung T.Nguyen	CPPg++10.5.0	Success	58,999
May 1, 2026 16:28	Hung T.Nguyen	CPPg++10.5.0	Success	57,076
May 1, 2026 14:20	limanjun99	CPPg++14.2.0	Error
May 1, 2026 14:04	limanjun99	CPPg++14.2.0	Error
May 1, 2026 10:50	limanjun99	CPPg++14.2.0	Success	6,729
May 1, 2026 10:41	limanjun99	CPPg++13.3.0	Success	6,860
May 1, 2026 10:12	Victor Mercklé	CPPg++14.2.0	Success	11,267+95.66 RP
May 1, 2026 10:00	limanjun99	CPPg++13.3.0	Success	7,433
May 1, 2026 09:52	limanjun99	CPPg++14.2.0	Success	7,279
May 1, 2026 09:49	limanjun99	CPPg++14.2.0	Success	7,330
May 1, 2026 09:48	limanjun99	CPPg++14.2.0	Success	7,617
May 1, 2026 09:12	limanjun99	CPPg++14.2.0	Success	6,884
May 1, 2026 09:08	limanjun99	CPPg++14.2.0	Success	15,306
May 1, 2026 09:04	limanjun99	CPPg++14.2.0	Success	16,145
May 1, 2026 09:01	limanjun99	CPPg++14.2.0	Error
May 1, 2026 09:00	limanjun99	CPPg++14.2.0	Error
May 1, 2026 08:57	limanjun99	CPPg++14.2.0	Success	17,329
May 1, 2026 08:51	limanjun99	CPPg++14.2.0	Success	16,274
May 1, 2026 05:14	limanjun99	CPPg++14.2.0	Success	40,758
May 1, 2026 01:09	olliecrow	RUSTrust-1.94.0	Success	6,316
May 1, 2026 01:03	olliecrow	RUSTrust-1.94.0	Success	6,190
Apr 30, 2026 20:37	Dibash Thapa	RUSTrust-1.95.0	Success	62,080+14.09 RP
Apr 30, 2026 00:34	olliecrow	CSHARP9.0.15	Success	8,604
Apr 30, 2026 00:30	olliecrow	CSHARP9.0.15	Success	8,622
Apr 30, 2026 00:27	olliecrow	CSHARP9.0.15	Success	75,147
Apr 30, 2026 00:02	olliecrow	RUSTrust-1.95.0	Success	6,301
Apr 30, 2026 00:00	olliecrow	RUSTrust-1.95.0	Success	6,318
Apr 29, 2026 23:41	olliecrow	CPPclang++18.1.3	Success	15,281
Apr 29, 2026 23:39	olliecrow	CPPg++13.3.0	Success	7,209
Apr 29, 2026 23:34	olliecrow	CPPg++13.3.0	Success	7,208
Apr 29, 2026 18:04	Charles Cabergs	CPPg++14.2.0	Success	12,886
Apr 29, 2026 14:02	olliecrow	CSHARP9.0.14	Success	9,477
Apr 29, 2026 13:55	olliecrow	CSHARP9.0.14	Error
Apr 29, 2026 13:17	TudyM	CPPg++10.5.0	Success	34,683
Apr 29, 2026 13:13	TudyM	CPPg++10.5.0	Success	35,203
Apr 29, 2026 13:11	TudyM	CPPg++10.5.0	Success	34,614
Apr 29, 2026 13:08	TudyM	CPPclang++20.1.2	Success	52,367
Apr 29, 2026 13:06	olliecrow	CPPclang++18.1.3	Success	15,337
Apr 29, 2026 13:03	olliecrow	CPPclang++18.1.3	Success	8,108
Apr 29, 2026 13:02	TudyM	CPPg++14.2.0	Success	37,656
Apr 29, 2026 13:00	TudyM	CPPg++10.5.0	Success	34,629
Apr 29, 2026 12:57	TudyM	CPPg++10.5.0	Success	35,259
Apr 29, 2026 12:53	TudyM	CPPg++10.5.0	Success	34,736
Apr 29, 2026 12:41	TudyM	CPPg++10.5.0	Success	39,492
Apr 29, 2026 12:37	TudyM	CPPg++10.5.0	Success	39,132
Apr 29, 2026 11:22	Dominique Garmier	CPPclang++18.1.3	Success	6,872
Apr 29, 2026 08:03	olliecrow	CPPg++10.5.0	Success	7,532
Apr 29, 2026 02:00	Charles Cabergs	CPPg++10.5.0	Success	13,369
Apr 28, 2026 15:56	Charles Cabergs	CPPg++13.3.0	Success	12,599+51.65 RP
Apr 28, 2026 13:54	Dominique Garmier	CPPclang++18.1.3	Success	52,186
Apr 28, 2026 13:14	Dominique Garmier	CPPclang++18.1.3	Success	13,192
Apr 28, 2026 12:55	Dominique Garmier	CPPclang++18.1.3	Success	7,362
Apr 28, 2026 12:53	Dominique Garmier	CPPclang++18.1.3	Success	8,245
Apr 28, 2026 12:19	Charles Cabergs	CPPg++13.3.0	Success	13,699
Apr 28, 2026 09:13	TudyM	CPPg++10.5.0	Success	34,615
Apr 28, 2026 09:11	TudyM	CPPg++10.5.0	Success	36,898
Apr 28, 2026 09:07	TudyM	CPPg++10.5.0	Success	34,631
Apr 28, 2026 09:04	TudyM	CPPg++10.5.0	Success	35,539
Apr 28, 2026 08:59	TudyM	CPPg++13.3.0	Success	38,856
Apr 28, 2026 08:57	TudyM	CPPg++10.5.0	Success	36,571
Apr 28, 2026 08:55	TudyM	CPPg++10.5.0	Success	35,880
Apr 28, 2026 08:52	TudyM	CPPclang++18.1.3	Success	37,676
Apr 28, 2026 06:19	Victor Mercklé	CPPg++14.2.0	Success	12,628+275.82 RP
Apr 28, 2026 04:42	Charles Cabergs	CPPg++13.3.0	Success	13,579
Apr 27, 2026 21:31	Victor Mercklé	CPPclang++20.1.2	Success	19,377+217.62 RP
Apr 27, 2026 18:50	Charles Cabergs	CPPg++13.3.0	Success	13,580
Apr 27, 2026 15:38	Victor Mercklé	CPPg++14.2.0	Success	33,506+260.25 RP
Apr 27, 2026 15:30	Victor Mercklé	CPPg++14.2.0	Success	261,733+0.37 RP
Apr 27, 2026 15:27	Victor Mercklé	CPPg++14.2.0	Success	264,327+37.83 RP
Apr 27, 2026 15:22	Victor Mercklé	CPPg++14.2.0	Error
Apr 27, 2026 10:25	wn	CPPg++13.3.0	Success	3,617
Apr 27, 2026 10:24	wn	CPPg++13.3.0	Success	3,512
Apr 27, 2026 10:23	wn	CPPg++13.3.0	Success	3,613
Apr 27, 2026 10:22	wn	CPPg++13.3.0	Success	3,481
Apr 27, 2026 10:21	wn	CPPg++13.3.0	Success	3,518
Apr 27, 2026 10:20	wn	CPPg++13.3.0	Success	3,487
Apr 27, 2026 10:19	wn	CPPg++13.3.0	Success	3,467
Apr 27, 2026 10:18	wn	CPPg++13.3.0	Success	3,448
Apr 27, 2026 10:16	wn	CPPg++13.3.0	Success	3,532
Apr 27, 2026 10:15	wn	CPPg++13.3.0	Success	3,515
Apr 27, 2026 10:12	wn	CPPg++13.3.0	Success	3,491
Apr 27, 2026 10:11	wn	CPPg++13.3.0	Success	3,466
Apr 27, 2026 10:10	wn	CPPg++13.3.0	Success	3,509
Apr 27, 2026 10:09	wn	CPPg++13.3.0	Success	3,460
Apr 27, 2026 10:08	wn	CPPg++13.3.0	Success	3,464
Apr 27, 2026 10:07	wn	CPPg++13.3.0	Success	3,453
Apr 27, 2026 10:05	wn	CPPg++13.3.0	Success	3,472
Apr 27, 2026 10:04	wn	CPPg++13.3.0	Success	3,566
Apr 27, 2026 10:03	wn	CPPg++13.3.0	Success	3,468
Apr 27, 2026 10:01	wn	CPPg++13.3.0	Success	4,659
Apr 27, 2026 10:00	wn	CPPg++14.2.0	Success	3,483
Apr 27, 2026 09:59	wn	CPPg++13.3.0	Success	3,510
Apr 27, 2026 09:58	wn	CPPg++13.3.0	Error
Apr 27, 2026 07:53	wn	CPPg++13.3.0	Success	3,537
Apr 27, 2026 07:52	wn	CPPg++13.3.0	Success	3,467
Apr 27, 2026 07:51	wn	CPPg++13.3.0	Success	3,477

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