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
Apr 11, 2026 13:25	wn	CPPclang++18.1.3	Success	4,263
Apr 11, 2026 13:23	wn	CPPclang++18.1.3	Success	4,750
Apr 11, 2026 12:09	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 11, 2026 11:29	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 11, 2026 11:28	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 11, 2026 11:27	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 11, 2026 11:26	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 11, 2026 11:25	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 11, 2026 11:24	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 11, 2026 11:23	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 11, 2026 11:20	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 11, 2026 10:35	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 11, 2026 10:32	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 11, 2026 10:16	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 11, 2026 10:04	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 11, 2026 10:04	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 11, 2026 10:00	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 11, 2026 09:51	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 11, 2026 09:43	Danylo Mocherniuk	CPPg++13.3.0	Success	4,659
Apr 11, 2026 09:31	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 11, 2026 09:27	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 11, 2026 09:22	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 11, 2026 09:08	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 11, 2026 09:04	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 11, 2026 08:59	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 11, 2026 08:45	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 11, 2026 08:29	Danylo Mocherniuk	CPPg++13.3.0	Success	4,582
Apr 11, 2026 08:20	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 11, 2026 08:19	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 11, 2026 08:00	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 11, 2026 07:58	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 11, 2026 07:54	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 11, 2026 07:53	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 11, 2026 07:52	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 11, 2026 07:51	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 11, 2026 07:49	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 11, 2026 07:48	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 11, 2026 07:44	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 11, 2026 07:43	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 11, 2026 07:34	Danylo Mocherniuk	CPPg++13.3.0	Success	4,603
Apr 11, 2026 01:19	richu shaji abraham	GOgo1.26.2	Success	45,863+103.80 RP
Apr 11, 2026 00:21	richu shaji abraham	CPPg++13.3.0	Success	2,066,579
Apr 11, 2026 00:20	richu shaji abraham	CPPg++13.3.0	Success	2,067,632
Apr 10, 2026 20:03	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 10, 2026 19:59	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 10, 2026 19:56	Danylo Mocherniuk	CPPg++13.3.0	Success	4,678
Apr 10, 2026 19:54	Danylo Mocherniuk	CPPg++13.3.0	Success	4,655
Apr 10, 2026 19:28	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 10, 2026 19:27	Danylo Mocherniuk	CPPg++13.3.0	Success	4,617
Apr 10, 2026 19:14	Danylo Mocherniuk	CPPg++13.3.0	Success	5,119
Apr 10, 2026 19:14	Danylo Mocherniuk	CPPg++13.3.0	Success	4,703
Apr 10, 2026 19:13	Danylo Mocherniuk	CPPg++13.3.0	Success	4,850
Apr 10, 2026 18:55	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 10, 2026 18:53	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 10, 2026 18:50	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 10, 2026 18:48	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 10, 2026 18:27	Gustas Rove	CPPg++13.3.0	Success	2,069,065+4.83 RP
Apr 10, 2026 17:20	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 10, 2026 17:17	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 10, 2026 17:15	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 10, 2026 17:11	Danylo Mocherniuk	CPPg++13.3.0	Success	5,619
Apr 10, 2026 16:49	arwdj	CPPg++13.3.0	Success	41,017
Apr 10, 2026 16:41	Oleg Skinderev	CPPg++13.3.0	Success	72,723
Apr 10, 2026 16:30	Danylo Mocherniuk	CPPg++13.3.0	Success	4,645
Apr 10, 2026 16:29	arwdj	CPPg++13.3.0	Success	37,568+266.18 RP
Apr 10, 2026 16:20	arwdj	CPPg++13.3.0	Error
Apr 10, 2026 16:10	Danylo Mocherniuk	CPPg++13.3.0	Success	5,556
Apr 10, 2026 15:51	Danylo Mocherniuk	CPPg++13.3.0	Success	4,733
Apr 10, 2026 15:47	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 10, 2026 15:45	Danylo Mocherniuk	CPPg++13.3.0	Success	7,607
Apr 10, 2026 15:44	Oleg Skinderev	CPPg++13.3.0	Error
Apr 10, 2026 15:35	Danylo Mocherniuk	CPPg++13.3.0	Success	4,531+50.92 RP
Apr 10, 2026 15:34	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 10, 2026 15:29	Danylo Mocherniuk	CPPg++13.3.0	Success	4,713
Apr 10, 2026 15:29	Oleg Skinderev	CPPg++13.3.0	Success	72,752
Apr 10, 2026 15:29	Oleg Skinderev	CPPg++13.3.0	Error
Apr 10, 2026 15:28	Oleg Skinderev	CPPg++13.3.0	Error
Apr 10, 2026 15:22	Danylo Mocherniuk	CPPg++13.3.0	Success	4,705
Apr 10, 2026 15:19	Oleg Skinderev	CPPclang++18.1.3	Success	82,187
Apr 10, 2026 15:18	Oleg Skinderev	CPPg++13.3.0	Success	74,260
Apr 10, 2026 15:18	Oleg Skinderev	CPPg++13.3.0	Success	74,193
Apr 10, 2026 15:17	Oleg Skinderev	CPPg++13.3.0	Success	75,654
Apr 10, 2026 15:16	Oleg Skinderev	CPPg++13.3.0	Success	72,459
Apr 10, 2026 15:16	Oleg Skinderev	CPPg++13.3.0	Error
Apr 10, 2026 15:15	Oleg Skinderev	CPPg++13.3.0	Error
Apr 10, 2026 15:07	Danylo Mocherniuk	CPPg++13.3.0	Success	4,724
Apr 10, 2026 15:04	Danylo Mocherniuk	CPPg++13.3.0	Success	4,699
Apr 10, 2026 14:48	Danylo Mocherniuk	CPPg++13.3.0	Success	4,638+43.72 RP
Apr 10, 2026 14:36	Danylo Mocherniuk	CPPg++13.3.0	Success	5,355
Apr 10, 2026 14:33	Danylo Mocherniuk	CPPg++13.3.0	Success	4,919
Apr 10, 2026 14:29	Danylo Mocherniuk	CPPg++13.3.0	Success	4,734+48.82 RP
Apr 10, 2026 14:22	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 10, 2026 14:21	Danylo Mocherniuk	CPPg++13.3.0	Success	4,872
Apr 10, 2026 14:06	Danylo Mocherniuk	CPPg++13.3.0	Success	5,002
Apr 10, 2026 14:01	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 10, 2026 14:01	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 10, 2026 14:00	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 10, 2026 13:59	Oleg Skinderev	CPPg++13.3.0	Success	74,187
Apr 10, 2026 13:59	Oleg Skinderev	CPPclang++18.1.3	Success	82,247
Apr 10, 2026 13:58	Oleg Skinderev	CPPclang++18.1.3	Success	155,072

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