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
May 17, 2026 21:26	zielaj	CPPclang++20.1.2	Success	3,332
May 17, 2026 21:25	zielaj	CPPclang++20.1.2	Error
May 17, 2026 21:23	zielaj	CPPclang++20.1.2	Success	3,322
May 17, 2026 21:22	zielaj	CPPclang++20.1.2	Success	3,484
May 17, 2026 21:20	zielaj	CPPclang++20.1.2	Success	3,475
May 17, 2026 21:17	zielaj	CPPclang++20.1.2	Error
May 17, 2026 21:15	zielaj	CPPclang++20.1.2	Success	3,498
May 17, 2026 21:05	zielaj	CPPclang++20.1.2	Error
May 17, 2026 21:03	zielaj	CPPclang++18.1.3	Error
May 17, 2026 21:03	zielaj	CPPclang++20.1.2	Error
May 17, 2026 21:01	zielaj	CPPclang++20.1.2	Success	3,314+84.09 RP
May 17, 2026 20:59	zielaj	CPPclang++20.1.2	Error
May 17, 2026 20:58	zielaj	CPPclang++20.1.2	Success	60,712
May 17, 2026 20:56	zielaj	CPPclang++20.1.2	Error
May 17, 2026 20:54	zielaj	CPPclang++20.1.2	Error
May 17, 2026 20:53	zielaj	CPPclang++20.1.2	Error
May 17, 2026 20:52	zielaj	CPPclang++20.1.2	Error
May 17, 2026 20:51	zielaj	CPPclang++20.1.2	Error
May 17, 2026 20:49	zielaj	CPPclang++20.1.2	Error
May 17, 2026 20:48	zielaj	CPPclang++20.1.2	Error
May 17, 2026 20:46	zielaj	CPPclang++20.1.2	Error
May 17, 2026 19:46	Victor Mercklé	CPPg++14.2.0	Success	47,042
May 17, 2026 19:41	Victor Mercklé	CPPg++14.2.0	Success	6,965
May 17, 2026 19:36	Victor Mercklé	CPPg++14.2.0	Success	6,989
May 17, 2026 19:31	Victor Mercklé	CPPg++14.2.0	Success	7,227
May 17, 2026 19:22	user76135	CPPg++14.2.0	Success	111,548
May 17, 2026 19:18	user76135	CPPg++10.5.0	Success	111,414
May 17, 2026 17:09	user76135	CPPg++10.5.0	Success	245,130
May 17, 2026 17:04	user76135	CPPg++10.5.0	Error
May 17, 2026 14:50	Victor Mercklé	ZIG0.16.0	Success	7,346
May 17, 2026 14:31	Victor Mercklé	CPPg++14.2.0	Success	7,482
May 17, 2026 14:16	Victor Mercklé	CPPg++14.2.0	Success	8,238
May 17, 2026 14:16	Victor Mercklé	ZIG0.16.0	Success	7,420
May 17, 2026 14:05	Victor Mercklé	CPPg++14.2.0	Error
May 17, 2026 13:53	Victor Mercklé	ZIG0.16.0	Success	7,420
May 17, 2026 13:47	Victor Mercklé	ZIG0.16.0	Success	7,422
May 17, 2026 13:42	Victor Mercklé	ZIG0.16.0	Success	7,405
May 17, 2026 13:37	Victor Mercklé	ZIG0.16.0	Error
May 17, 2026 13:37	Victor Mercklé	CPPg++14.2.0	Success	6,953
May 17, 2026 13:28	Victor Mercklé	CPPg++14.2.0	Success	6,967
May 17, 2026 13:18	Victor Mercklé	CPPg++14.2.0	Error
May 17, 2026 13:13	Victor Mercklé	CPPg++14.2.0	Error
May 17, 2026 13:08	Victor Mercklé	CPPg++14.2.0	Error
May 17, 2026 12:29	Hamza	CPPg++10.5.0	Success	31,693+203.17 RP
May 17, 2026 12:18	M-Rochat	CPPclang++17.0.6	Success	14,034
May 17, 2026 10:43	Hamza	CPPg++10.5.0	Success	88,998+112.36 RP
May 17, 2026 09:30	M-Rochat	CPPclang++17.0.6	Success	12,660
May 17, 2026 09:30	M-Rochat	CPPclang++17.0.6	Success	12,689
May 17, 2026 09:30	M-Rochat	CPPclang++17.0.6	Success	12,746
May 17, 2026 07:21	flavio87	CPPg++14.2.0	Success	5,560+113.36 RP
May 17, 2026 07:03	Victor Mercklé	CPPg++14.2.0	Error
May 17, 2026 06:58	Victor Mercklé	CPPg++14.2.0	Error
May 17, 2026 06:37	olliecrow	RUSTrust-1.95.0	Success	6,148
May 17, 2026 03:33	M-Rochat	CPPclang++17.0.6	Success	12,748
May 17, 2026 03:32	M-Rochat	CPPclang++17.0.6	Success	12,742
May 17, 2026 03:32	M-Rochat	CPPclang++20.1.2	Success	13,773
May 17, 2026 02:52	olliecrow	GOgo1.22.5	Error
May 17, 2026 01:59	M-Rochat	CPPclang++17.0.6	Success	12,658
May 17, 2026 01:59	M-Rochat	CPPclang++17.0.6	Success	12,680
May 17, 2026 01:58	M-Rochat	CPPclang++17.0.6	Success	12,734
May 17, 2026 01:58	M-Rochat	CPPclang++17.0.6	Success	12,654
May 17, 2026 01:57	M-Rochat	CPPclang++17.0.6	Success	12,669
May 17, 2026 01:57	M-Rochat	CPPclang++17.0.6	Success	12,652+0.87 RP
May 17, 2026 01:57	M-Rochat	CPPclang++17.0.6	Success	12,745
May 17, 2026 01:57	M-Rochat	CPPclang++17.0.6	Success	12,666+4.15 RP
May 17, 2026 01:56	M-Rochat	CPPclang++17.0.6	Success	12,753
May 17, 2026 01:55	M-Rochat	CPPclang++17.0.6	Success	12,733+0.49 RP
May 17, 2026 01:55	M-Rochat	CPPclang++17.0.6	Success	12,733
May 17, 2026 01:55	M-Rochat	CPPclang++17.0.6	Success	12,735
May 17, 2026 01:54	M-Rochat	CPPclang++17.0.6	Success	12,753
May 17, 2026 01:54	M-Rochat	CPPclang++17.0.6	Success	12,866
May 17, 2026 01:53	M-Rochat	CPPclang++17.0.6	Success	18,869
May 17, 2026 01:53	M-Rochat	CPPclang++20.1.2	Success	19,993
May 17, 2026 01:52	M-Rochat	CPPclang++19.1.1	Success	14,101
May 17, 2026 01:52	M-Rochat	CPPclang++17.0.6	Success	12,741+31.69 RP
May 17, 2026 01:51	M-Rochat	CPPclang++18.1.3	Success	13,277+30.95 RP
May 17, 2026 01:50	M-Rochat	CPPclang++20.1.2	Success	13,846+108.02 RP
May 17, 2026 01:50	M-Rochat	CPPg++13.3.0	Success	16,811
May 17, 2026 01:50	M-Rochat	CPPg++13.3.0	Success	16,281+104.53 RP
May 16, 2026 19:38	Aleksei Shahoika	CPPclang++18.1.3	Error
May 16, 2026 19:31	Aleksei Shahoika	CPPclang++18.1.3	Error
May 16, 2026 19:28	Aleksei Shahoika	CPPclang++18.1.3	Error
May 16, 2026 16:01	flavio87	CPPg++14.2.0	Success	5,934+52.28 RP
May 16, 2026 14:12	Aleksei Shahoika	CPPclang++18.1.3	Error
May 16, 2026 13:44	Aleksei Shahoika	CPPclang++18.1.3	Error
May 16, 2026 13:25	Aleksei Shahoika	CPPclang++18.1.3	Error
May 16, 2026 13:24	Aleksei Shahoika	CPPclang++18.1.3	Error
May 16, 2026 11:52	Aleksei Shahoika	CPPclang++18.1.3	Error
May 16, 2026 11:51	Aleksei Shahoika	CPPclang++18.1.3	Error
May 16, 2026 11:45	Aleksei Shahoika	CPPclang++18.1.3	Error
May 16, 2026 11:43	Aleksei Shahoika	CPPclang++18.1.3	Error
May 16, 2026 06:53	Victor Mercklé	CPPg++14.2.0	Success	7,860
May 16, 2026 06:48	Victor Mercklé	CPPg++14.2.0	Error
May 16, 2026 06:42	Victor Mercklé	CPPg++14.2.0	Success	6,977
May 16, 2026 06:05	Victor Mercklé	CPPg++14.2.0	Error
May 16, 2026 05:56	Victor Mercklé	CPPg++14.2.0	Error
May 16, 2026 05:51	Victor Mercklé	CPPg++14.2.0	Success	6,954
May 16, 2026 05:45	Victor Mercklé	CPPg++14.2.0	Success	6,961
May 16, 2026 05:40	Victor Mercklé	CPPg++14.2.0	Success	6,956
May 16, 2026 05:35	Victor Mercklé	CPPg++14.2.0	Success	6,960

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