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 29, 2026 11:16	Danylo Mocherniuk	CPPg++13.3.0	Success	63,945
Mar 29, 2026 10:37	Danylo Mocherniuk	CPPg++13.3.0	Success	35,674+51.61 RP
Mar 29, 2026 10:19	Danylo Mocherniuk	CPPg++13.3.0	Success	43,724+1.80 RP
Mar 29, 2026 10:11	Danylo Mocherniuk	CPPg++13.3.0	Error
Mar 29, 2026 10:02	Danylo Mocherniuk	CPPg++13.3.0	Success	44,071+30.31 RP
Mar 29, 2026 09:59	Danylo Mocherniuk	CPPg++13.3.0	Success	50,866+18.12 RP
Mar 29, 2026 09:57	Danylo Mocherniuk	CPPg++13.3.0	Error
Mar 29, 2026 09:55	Danylo Mocherniuk	CPPg++13.3.0	Error
Mar 29, 2026 09:24	Danylo Mocherniuk	CPPg++13.3.0	Error
Mar 29, 2026 09:21	Danylo Mocherniuk	CPPg++13.3.0	Success	56,050
Mar 29, 2026 09:20	Danylo Mocherniuk	CPPg++13.3.0	Error
Mar 29, 2026 09:19	Danylo Mocherniuk	CPPg++13.3.0	Success	56,947
Mar 29, 2026 09:09	Danylo Mocherniuk	CPPg++13.3.0	Success	59,010
Mar 29, 2026 09:08	Danylo Mocherniuk	CPPg++13.3.0	Success	56,948
Mar 29, 2026 09:04	Danylo Mocherniuk	CPPg++13.3.0	Success	56,030+0.01 RP
Mar 29, 2026 09:03	Danylo Mocherniuk	CPPclang++18.1.3	Success	57,680
Mar 29, 2026 09:00	Danylo Mocherniuk	CPPg++13.3.0	Error
Mar 29, 2026 08:59	Danylo Mocherniuk	CPPg++13.3.0	Success	56,046
Mar 29, 2026 08:56	Danylo Mocherniuk	CPPg++13.3.0	Success	56,033
Mar 29, 2026 08:51	Danylo Mocherniuk	CPPg++13.3.0	Success	58,007
Mar 29, 2026 08:46	Danylo Mocherniuk	CPPg++13.3.0	Success	56,032+1.87 RP
Mar 29, 2026 08:37	Danylo Mocherniuk	CPPg++13.3.0	Success	60,338
Mar 29, 2026 08:25	Danylo Mocherniuk	CPPg++13.3.0	Error
Mar 29, 2026 08:24	Danylo Mocherniuk	CPPg++13.3.0	Error
Mar 29, 2026 08:21	Danylo Mocherniuk	CPPg++13.3.0	Success	56,624+0.01 RP
Mar 29, 2026 08:17	Danylo Mocherniuk	CPPg++13.3.0	Success	56,628+0.05 RP
Mar 29, 2026 08:13	Danylo Mocherniuk	CPPg++13.3.0	Success	56,644+30.65 RP
Mar 29, 2026 07:46	Danylo Mocherniuk	CPPg++13.3.0	Success	68,542+145.90 RP
Mar 29, 2026 05:55	Dominique Garmier	CPPclang++18.1.3	Success	43,543
Mar 29, 2026 01:58	zielaj	CPPclang++18.1.3	Success	3,560
Mar 29, 2026 01:56	zielaj	CPPclang++18.1.3	Success	3,475
Mar 29, 2026 01:55	zielaj	CPPclang++18.1.3	Error
Mar 29, 2026 01:47	zielaj	CPPclang++18.1.3	Error
Mar 29, 2026 01:45	zielaj	CPPclang++18.1.3	Success	3,597
Mar 29, 2026 01:44	zielaj	CPPclang++18.1.3	Success	3,597
Mar 29, 2026 01:40	zielaj	CPPclang++18.1.3	Success	3,477
Mar 29, 2026 01:28	Dominique Garmier	CPPclang++18.1.3	Success	43,519
Mar 29, 2026 01:26	zielaj	CPPclang++18.1.3	Success	3,479
Mar 29, 2026 01:24	zielaj	CPPclang++18.1.3	Success	3,451
Mar 29, 2026 01:22	Dominique Garmier	CPPclang++18.1.3	Error
Mar 29, 2026 01:22	zielaj	CPPclang++18.1.3	Error
Mar 29, 2026 01:21	zielaj	CPPclang++18.1.3	Success	3,474
Mar 29, 2026 01:20	zielaj	CPPclang++18.1.3	Success	3,594
Mar 29, 2026 01:16	Dominique Garmier	CPPclang++18.1.3	Success	26,111
Mar 29, 2026 01:12	zielaj	CPPclang++18.1.3	Error
Mar 29, 2026 01:12	zielaj	CPPclang++18.1.3	Error
Mar 29, 2026 01:11	zielaj	CPPclang++18.1.3	Error
Mar 29, 2026 01:00	Dominique Garmier	CPPg++13.3.0	Success	36,302
Mar 29, 2026 00:53	CU9HUE	CPPg++13.3.0	Error
Mar 29, 2026 00:42	zielaj	CPPclang++18.1.3	Error
Mar 29, 2026 00:40	zielaj	CPPclang++18.1.3	Error
Mar 29, 2026 00:37	zielaj	CPPclang++18.1.3	Error
Mar 29, 2026 00:36	zielaj	CPPclang++18.1.3	Error
Mar 29, 2026 00:33	zielaj	CPPclang++18.1.3	Error
Mar 29, 2026 00:28	zielaj	CPPclang++18.1.3	Error
Mar 29, 2026 00:24	zielaj	CPPclang++18.1.3	Error
Mar 29, 2026 00:22	zielaj	CPPclang++18.1.3	Error
Mar 28, 2026 23:34	Dominique Garmier	CPPg++13.3.0	Success	37,892
Mar 28, 2026 22:16	Dominique Garmier	GOgo1.26.1	Success	48,709
Mar 28, 2026 21:44	Ondřej Polanecký	CPPg++13.3.0	Error
Mar 28, 2026 21:34	Ondřej Polanecký	CPPg++13.3.0	Error
Mar 28, 2026 21:10	Brillentyp	RUSTrust-1.94.1	Success	62,838
Mar 28, 2026 21:02	Brillentyp	RUSTrust-1.94.1	Success	62,827
Mar 28, 2026 21:02	Ondřej Polanecký	CPPg++13.3.0	Success	40,940
Mar 28, 2026 20:52	Brillentyp	RUSTrust-1.94.1	Success	56,961+61.67 RP
Mar 28, 2026 20:51	Brillentyp	RUSTrust-1.94.1	Success	107,242
Mar 28, 2026 20:50	Ondřej Polanecký	CPPg++13.3.0	Error
Mar 28, 2026 20:33	Ondřej Polanecký	CPPg++13.3.0	Success	8,363+8.09 RP
Mar 28, 2026 20:25	Ondřej Polanecký	CPPg++13.3.0	Success	17,320
Mar 28, 2026 20:24	zielaj	CPPclang++18.1.3	Success	3,473
Mar 28, 2026 20:21	zielaj	CPPclang++18.1.3	Error
Mar 28, 2026 20:19	zielaj	CPPclang++18.1.3	Error
Mar 28, 2026 20:17	zielaj	CPPclang++18.1.3	Error
Mar 28, 2026 20:16	Ondřej Polanecký	CPPg++13.3.0	Success	9,589
Mar 28, 2026 20:15	Ondřej Polanecký	CPPg++13.3.0	Success	9,588
Mar 28, 2026 20:14	zielaj	CPPclang++18.1.3	Error
Mar 28, 2026 20:14	zielaj	CPPclang++18.1.3	Error
Mar 28, 2026 20:02	zielaj	CPPclang++18.1.3	Error
Mar 28, 2026 19:59	zielaj	CPPclang++18.1.3	Error
Mar 28, 2026 19:58	zielaj	CPPclang++18.1.3	Error
Mar 28, 2026 19:56	zielaj	CPPclang++18.1.3	Error
Mar 28, 2026 19:56	Ondřej Polanecký	CPPclang++18.1.3	Success	37,484
Mar 28, 2026 19:55	zielaj	CPPclang++18.1.3	Error
Mar 28, 2026 19:55	Ondřej Polanecký	CPPg++13.3.0	Success	45,041
Mar 28, 2026 19:54	zielaj	CPPclang++18.1.3	Error
Mar 28, 2026 19:53	zielaj	CPPclang++18.1.3	Error
Mar 28, 2026 19:39	Ondřej Polanecký	CPPg++13.3.0	Success	13,782
Mar 28, 2026 19:36	Ondřej Polanecký	CPPg++13.3.0	Success	24,036
Mar 28, 2026 19:23	Ondřej Polanecký	CPPclang++18.1.3	Error
Mar 28, 2026 19:19	Ondřej Polanecký	CPPclang++18.1.3	Error
Mar 28, 2026 18:55	Brillentyp	RUSTrust-1.94.1	Success	440,009
Mar 28, 2026 02:42	zielaj	CPPclang++18.1.3	Success	3,576
Mar 28, 2026 02:41	Dominique Garmier	ZIG0.13.0	Success	63,423
Mar 28, 2026 02:31	zielaj	CPPclang++18.1.3	Success	3,497
Mar 28, 2026 02:30	zielaj	CPPclang++18.1.3	Success	3,650
Mar 28, 2026 02:18	zielaj	CPPclang++18.1.3	Success	3,502
Mar 28, 2026 02:18	zielaj	CPPclang++18.1.3	Success	3,473
Mar 28, 2026 02:17	zielaj	CPPclang++18.1.3	Success	4,124
Mar 28, 2026 02:15	olliecrow	RUSTrust-1.94.0	Success	6,011
Mar 28, 2026 02:12	olliecrow	RUSTrust-1.94.0	Success	5,677

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