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
Mar 21, 2026 07:54	olliecrow	RUSTrust-1.94.0	Success	7,401
Mar 21, 2026 07:54	olliecrow	RUSTrust-1.94.0	Success	7,843
Mar 21, 2026 07:50	olliecrow	RUSTrust-1.94.0	Success	7,210
Mar 21, 2026 07:49	olliecrow	RUSTrust-1.94.0	Success	7,475
Mar 21, 2026 07:44	olliecrow	RUSTrust-1.94.0	Success	6,488
Mar 21, 2026 07:44	olliecrow	ZIG0.14.0	Success	6,044
Mar 21, 2026 07:42	olliecrow	RUSTrust-1.94.0	Success	7,566
Mar 21, 2026 07:42	olliecrow	ZIG0.14.0	Success	6,070
Mar 21, 2026 07:37	olliecrow	RUSTrust-1.94.0	Success	7,476
Mar 21, 2026 07:37	olliecrow	RUSTrust-1.94.0	Success	8,444
Mar 21, 2026 07:35	olliecrow	ZIG0.14.0	Success	7,545
Mar 21, 2026 07:35	olliecrow	RUSTrust-1.94.0	Success	7,459
Mar 21, 2026 07:33	olliecrow	RUSTrust-1.94.0	Success	7,382
Mar 21, 2026 07:33	olliecrow	RUSTrust-1.94.0	Success	7,523
Mar 21, 2026 07:32	olliecrow	RUSTrust-1.94.0	Success	7,195
Mar 21, 2026 07:31	olliecrow	ZIG0.14.0	Success	6,017
Mar 21, 2026 07:30	olliecrow	CPPg++13.3.0	Success	5,760
Mar 21, 2026 07:30	olliecrow	RUSTrust-1.94.0	Success	7,445
Mar 21, 2026 07:29	olliecrow	ZIG0.14.0	Success	6,139
Mar 21, 2026 07:28	olliecrow	CSHARP9.0.14	Success	83,438
Mar 21, 2026 07:27	olliecrow	ZIG0.14.0	Success	6,027
Mar 21, 2026 07:27	olliecrow	RUSTrust-1.94.0	Success	6,538
Mar 21, 2026 07:27	olliecrow	RUSTrust-1.94.0	Success	7,420
Mar 21, 2026 07:27	olliecrow	RUSTrust-1.94.0	Success	7,396
Mar 21, 2026 07:22	olliecrow	RUSTrust-1.94.0	Success	5,760
Mar 21, 2026 07:22	olliecrow	RUSTrust-1.94.0	Success	5,681
Mar 21, 2026 07:22	olliecrow	RUSTrust-1.94.0	Success	5,648
Mar 21, 2026 07:22	olliecrow	RUSTrust-1.94.0	Success	5,732
Mar 21, 2026 07:21	olliecrow	RUSTrust-1.94.0	Success	5,646
Mar 21, 2026 07:21	olliecrow	RUSTrust-1.94.0	Success	5,776
Mar 21, 2026 07:21	olliecrow	RUSTrust-1.94.0	Success	5,830
Mar 21, 2026 07:20	olliecrow	RUSTrust-1.94.0	Success	5,811
Mar 21, 2026 07:20	olliecrow	ZIG0.14.0	Success	5,979+131.69 RP
Mar 21, 2026 07:19	olliecrow	RUSTrust-1.94.0	Success	5,696
Mar 21, 2026 07:19	olliecrow	RUSTrust-1.94.0	Success	5,790
Mar 21, 2026 07:17	olliecrow	RUSTrust-1.94.0	Success	5,810
Mar 21, 2026 07:17	olliecrow	RUSTrust-1.94.0	Success	5,826
Mar 21, 2026 07:16	olliecrow	RUSTrust-1.94.0	Success	5,761
Mar 21, 2026 07:15	olliecrow	RUSTrust-1.94.0	Success	5,758
Mar 21, 2026 07:09	olliecrow	RUSTrust-1.94.0	Success	5,839
Mar 21, 2026 07:08	olliecrow	RUSTrust-1.94.0	Success	6,324
Mar 21, 2026 07:08	olliecrow	RUSTrust-1.94.0	Success	5,888
Mar 21, 2026 07:08	olliecrow	RUSTrust-1.94.0	Success	5,893
Mar 21, 2026 07:06	olliecrow	RUSTrust-1.94.0	Success	5,962
Mar 21, 2026 07:05	olliecrow	RUSTrust-1.94.0	Success	5,910
Mar 21, 2026 07:05	olliecrow	RUSTrust-1.94.0	Success	5,801
Mar 21, 2026 07:05	olliecrow	RUSTrust-1.94.0	Error
Mar 21, 2026 07:05	olliecrow	RUSTrust-1.94.0	Success	5,841
Mar 21, 2026 07:03	olliecrow	RUSTrust-1.94.0	Success	6,903
Mar 21, 2026 07:03	olliecrow	RUSTrust-1.94.0	Success	6,665
Mar 21, 2026 07:03	olliecrow	RUSTrust-1.94.0	Success	5,813
Mar 21, 2026 07:03	olliecrow	RUSTrust-1.94.0	Success	5,810
Mar 21, 2026 07:02	olliecrow	RUSTrust-1.94.0	Success	5,935
Mar 21, 2026 07:02	olliecrow	RUSTrust-1.94.0	Success	5,807
Mar 21, 2026 07:01	olliecrow	RUSTrust-1.94.0	Success	5,921
Mar 21, 2026 07:01	olliecrow	RUSTrust-1.94.0	Success	5,889
Mar 21, 2026 07:00	olliecrow	RUSTrust-1.94.0	Success	5,898
Mar 21, 2026 06:59	olliecrow	CPPg++13.3.0	Error
Mar 21, 2026 06:59	olliecrow	RUSTrust-1.94.0	Success	5,882
Mar 21, 2026 06:58	olliecrow	RUSTrust-1.94.0	Success	5,815
Mar 21, 2026 05:07	Josu San Martin	CPPclang++18.1.3	Error
Mar 21, 2026 04:38	Josu San Martin	CPPg++13.3.0	Success	6,077
Mar 21, 2026 04:36	Josu San Martin	CPPclang++18.1.3	Success	5,466
Mar 21, 2026 04:34	Josu San Martin	CPPclang++18.1.3	Success	5,340
Mar 21, 2026 04:32	Josu San Martin	CPPclang++18.1.3	Success	7,280
Mar 21, 2026 04:21	Josu San Martin	CPPg++13.3.0	Success	5,947
Mar 21, 2026 04:21	Josu San Martin	CPPg++13.3.0	Success	5,544
Mar 21, 2026 04:21	Josu San Martin	CPPclang++18.1.3	Success	5,409
Mar 21, 2026 04:12	Dominique Garmier	CPPclang++18.1.3	Success	8,169
Mar 21, 2026 03:12	Dominique Garmier	CPPclang++18.1.3	Success	9,095
Mar 21, 2026 02:01	Dominique Garmier	CPPg++13.3.0	Error
Mar 21, 2026 01:31	zielaj	CPPclang++18.1.3	Success	3,470
Mar 21, 2026 01:30	zielaj	CPPclang++18.1.3	Success	3,715
Mar 21, 2026 01:29	zielaj	CPPclang++18.1.3	Success	3,836
Mar 21, 2026 01:27	zielaj	CPPclang++18.1.3	Success	3,849
Mar 21, 2026 01:20	zielaj	CPPclang++18.1.3	Success	3,751
Mar 21, 2026 01:11	zielaj	CPPclang++18.1.3	Success	4,010
Mar 21, 2026 01:09	zielaj	CPPclang++18.1.3	Success	3,595
Mar 21, 2026 00:11	Abhijit Raman	CPPg++13.3.0	Success	76,427
Mar 21, 2026 00:09	Abhijit Raman	CPPg++13.3.0	Success	63,158+8.70 RP
Mar 20, 2026 22:55	Josu San Martin	CPPg++13.3.0	Success	9,415
Mar 20, 2026 22:55	Josu San Martin	CPPg++13.3.0	Success	9,567
Mar 20, 2026 22:51	Ondřej Polanecký	CPPclang++18.1.3	Success	16,396
Mar 20, 2026 22:49	Ondřej Polanecký	CPPg++13.3.0	Success	14,847
Mar 20, 2026 22:47	Ondřej Polanecký	CPPg++13.3.0	Error
Mar 20, 2026 22:40	Ondřej Polanecký	CPPclang++18.1.3	Error
Mar 20, 2026 22:34	Ondřej Polanecký	CPPclang++18.1.3	Error
Mar 20, 2026 22:30	Ondřej Polanecký	CPPclang++18.1.3	Error
Mar 20, 2026 20:32	Ondřej Polanecký	CPPclang++18.1.3	Success	10,895
Mar 20, 2026 17:51	Dominique Garmier	GOgo1.26.1	Success	78,459
Mar 20, 2026 14:58	lmqzzz	CPPg++13.3.0	Success	2,068,294+4.83 RP
Mar 20, 2026 14:39	Dominique Garmier	RUSTrust-1.94.0	Success	370,918
Mar 20, 2026 14:25	Dominique Garmier	RUSTrust-1.94.0	Success	512,683
Mar 20, 2026 14:18	Dominique Garmier	CPPclang++18.1.3	Success	8,578
Mar 20, 2026 13:53	Dominique Garmier	CPPclang++18.1.3	Success	8,620
Mar 20, 2026 13:51	Dominique Garmier	CPPg++13.3.0	Success	88,062
Mar 20, 2026 13:51	Dominique Garmier	CPPg++13.3.0	Success	88,057
Mar 20, 2026 13:51	Dominique Garmier	CPPg++13.3.0	Success	64,676
Mar 20, 2026 13:51	Dominique Garmier	CPPclang++18.1.3	Success	58,278
Mar 20, 2026 13:50	Dominique Garmier	CPPclang++18.1.3	Success	50,626

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