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
Mar 26, 2026 17:03	Dominique Garmier	ZIG0.13.0	Success	82,148
Mar 26, 2026 16:53	olliecrow	CPPg++13.3.0	Error
Mar 26, 2026 16:04	Dominique Garmier	CPPg++13.3.0	Success	53,230
Mar 26, 2026 16:02	Dominique Garmier	CPPclang++18.1.3	Success	38,002
Mar 26, 2026 15:56	Dominique Garmier	CPPclang++18.1.3	Success	28,183
Mar 26, 2026 15:33	wn	CPPclang++18.1.3	Success	34,374
Mar 26, 2026 15:32	wn	CPPclang++18.1.3	Error
Mar 26, 2026 15:16	wn	CPPclang++18.1.3	Success	4,254
Mar 26, 2026 13:00	Dominique Garmier	CPPclang++18.1.3	Success	7,579
Mar 26, 2026 10:57	Dominique Garmier	RUSTrust-1.94.0	Success	62,558
Mar 26, 2026 10:22	Adam Folwarczny	CPPg++13.3.0	Success	10,877
Mar 26, 2026 08:07	poyo180605	CPPclang++18.1.3	Success	60,328+0.14 RP
Mar 26, 2026 07:31	Adam Folwarczny	CPPg++13.3.0	Success	64,289
Mar 26, 2026 06:31	poyo180605	CPPclang++18.1.3	Success	62,594
Mar 26, 2026 06:31	poyo180605	CPPclang++18.1.3	Success	62,551
Mar 26, 2026 06:30	poyo180605	CPPclang++18.1.3	Success	112,858
Mar 26, 2026 06:28	poyo180605	CPPclang++18.1.3	Success	61,163
Mar 26, 2026 06:16	poyo180605	CPPclang++18.1.3	Success	61,520
Mar 26, 2026 06:15	poyo180605	CPPclang++18.1.3	Success	63,326
Mar 26, 2026 06:09	poyo180605	CPPclang++18.1.3	Success	62,551
Mar 26, 2026 06:06	poyo180605	CPPclang++18.1.3	Success	60,380+0.08 RP
Mar 26, 2026 06:05	poyo180605	CPPclang++18.1.3	Success	60,648
Mar 26, 2026 06:05	poyo180605	CPPclang++18.1.3	Success	60,411+0.07 RP
Mar 26, 2026 06:03	poyo180605	CPPclang++18.1.3	Success	60,436+1.87 RP
Mar 26, 2026 06:03	poyo180605	CPPclang++18.1.3	Success	61,126+3.33 RP
Mar 26, 2026 06:02	poyo180605	CPPclang++18.1.3	Success	62,397+4.99 RP
Mar 26, 2026 06:01	poyo180605	CPPclang++18.1.3	Success	64,403+3.16 RP
Mar 26, 2026 06:00	poyo180605	CPPclang++18.1.3	Success	1,079,091
Mar 26, 2026 05:55	poyo180605	CPPclang++18.1.3	Success	65,741+5.17 RP
Mar 26, 2026 05:51	poyo180605	CPPclang++18.1.3	Success	68,053+0.07 RP
Mar 26, 2026 05:50	poyo180605	CPPg++13.3.0	Success	74,420
Mar 26, 2026 05:48	poyo180605	CPPclang++18.1.3	Success	70,348
Mar 26, 2026 05:46	poyo180605	CPPclang++18.1.3	Success	68,085+2.96 RP
Mar 26, 2026 05:45	poyo180605	CPPclang++18.1.3	Success	69,486+22.93 RP
Mar 26, 2026 05:44	poyo180605	CPPclang++18.1.3	Success	82,654+0.82 RP
Mar 26, 2026 05:42	poyo180605	CPPclang++18.1.3	Success	83,216+115.33 RP
Mar 26, 2026 05:41	poyo180605	CPPclang++18.1.3	Error
Mar 26, 2026 05:39	poyo180605	CPPclang++18.1.3	Success	2,069,843
Mar 26, 2026 05:39	poyo180605	CPPclang++18.1.3	Success	2,069,082
Mar 26, 2026 05:38	poyo180605	CPPclang++18.1.3	Error
Mar 26, 2026 05:36	poyo180605	CPPclang++18.1.3	Error
Mar 26, 2026 05:32	poyo180605	CPPclang++18.1.3	Error
Mar 26, 2026 05:27	poyo180605	CPPclang++18.1.3	Error
Mar 26, 2026 05:26	poyo180605	CPPg++13.3.0	Error
Mar 26, 2026 05:25	poyo180605	CPPg++13.3.0	Success	2,067,864+4.84 RP
Mar 26, 2026 02:24	zielaj	CPPclang++18.1.3	Success	3,426
Mar 26, 2026 02:23	zielaj	CPPclang++18.1.3	Success	3,700
Mar 26, 2026 02:21	zielaj	CPPclang++18.1.3	Error
Mar 26, 2026 02:20	zielaj	CPPclang++18.1.3	Success	3,655
Mar 26, 2026 02:14	zielaj	CPPclang++18.1.3	Error
Mar 26, 2026 02:09	zielaj	CPPclang++18.1.3	Success	3,452
Mar 26, 2026 02:03	olliecrow	CPPg++13.3.0	Success	6,145
Mar 26, 2026 02:02	zielaj	CPPclang++18.1.3	Error
Mar 26, 2026 02:01	zielaj	CPPclang++18.1.3	Error
Mar 26, 2026 01:59	zielaj	CPPclang++18.1.3	Success	3,424
Mar 26, 2026 01:57	zielaj	CPPclang++18.1.3	Success	3,425
Mar 26, 2026 01:55	zielaj	CPPclang++18.1.3	Success	3,425
Mar 26, 2026 01:53	zielaj	CPPclang++18.1.3	Success	3,422+4.26 RP
Mar 26, 2026 01:50	olliecrow	RUSTrust-1.94.0	Error
Mar 26, 2026 01:48	olliecrow	RUSTrust-1.94.0	Error
Mar 26, 2026 01:48	zielaj	CPPclang++18.1.3	Error
Mar 26, 2026 01:43	zielaj	CPPclang++18.1.3	Error
Mar 26, 2026 01:41	olliecrow	RUSTrust-1.94.0	Error
Mar 26, 2026 01:38	olliecrow	RUSTrust-1.94.0	Error
Mar 26, 2026 01:37	zielaj	CPPclang++18.1.3	Error
Mar 26, 2026 01:36	olliecrow	RUSTrust-1.94.0	Error
Mar 26, 2026 01:31	zielaj	CPPclang++18.1.3	Error
Mar 26, 2026 01:27	zielaj	CPPclang++18.1.3	Error
Mar 26, 2026 01:26	zielaj	CPPclang++18.1.3	Error
Mar 26, 2026 01:20	zielaj	CPPclang++18.1.3	Error
Mar 26, 2026 01:14	zielaj	CPPclang++18.1.3	Error
Mar 26, 2026 01:13	olliecrow	RUSTrust-1.94.0	Error
Mar 26, 2026 01:13	zielaj	CPPclang++18.1.3	Error
Mar 26, 2026 01:12	zielaj	CPPclang++18.1.3	Error
Mar 26, 2026 01:10	zielaj	CPPclang++18.1.3	Error
Mar 26, 2026 01:09	zielaj	CPPclang++18.1.3	Error
Mar 26, 2026 01:08	zielaj	CPPclang++18.1.3	Error
Mar 26, 2026 01:07	zielaj	CPPclang++18.1.3	Error
Mar 26, 2026 01:06	zielaj	CPPclang++18.1.3	Error
Mar 26, 2026 00:59	zielaj	CPPclang++18.1.3	Error
Mar 26, 2026 00:55	zielaj	CPPclang++18.1.3	Error
Mar 26, 2026 00:49	zielaj	CPPclang++18.1.3	Success	3,427+19.45 RP
Mar 25, 2026 22:10	Dominique Garmier	ZIG0.13.0	Success	97,990
Mar 25, 2026 21:55	Dominique Garmier	ZIG0.13.0	Success	54,876
Mar 25, 2026 21:54	Dominique Garmier	ZIG0.13.0	Success	44,902
Mar 25, 2026 21:40	Dominique Garmier	ZIG0.13.0	Success	41,464
Mar 25, 2026 21:39	Dominique Garmier	ZIG0.13.0	Success	43,230
Mar 25, 2026 20:48	Vladimir Kravchenko	CPPclang++18.1.3	Success	393,407+25.42 RP
Mar 25, 2026 20:34	Dominique Garmier	ZIG0.13.0	Success	38,173
Mar 25, 2026 19:55	Dominique Garmier	ZIG0.13.0	Success	39,872
Mar 25, 2026 19:53	Dominique Garmier	ZIG0.13.0	Success	39,843
Mar 25, 2026 19:21	Dominique Garmier	ZIG0.13.0	Success	63,436
Mar 25, 2026 19:19	Dominique Garmier	ZIG0.13.0	Success	70,494
Mar 25, 2026 19:07	Mandar Bapat	CPPg++13.3.0	Success	2,069,912+4.83 RP
Mar 25, 2026 19:02	Dominique Garmier	RUSTrust-1.94.0	Success	518,392
Mar 25, 2026 18:52	Dominique Garmier	RUSTrust-1.94.0	Success	369,905
Mar 25, 2026 18:42	ritesh-25	CPPg++13.3.0	Error
Mar 25, 2026 18:42	Dominique Garmier	RUSTrust-1.94.0	Success	311,821
Mar 25, 2026 18:37	ritesh-25	CPPg++13.3.0	Error
Mar 25, 2026 18:36	ritesh-25	CPPg++13.3.0	Success	2,075,719+4.82 RP

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