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 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
Apr 10, 2026 13:58	Oleg Skinderev	CPPg++13.3.0	Success	72,331+7.86 RP
Apr 10, 2026 13:58	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 10, 2026 13:57	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 10, 2026 13:57	Oleg Skinderev	CPPg++13.3.0	Error
Apr 10, 2026 13:56	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 10, 2026 13:37	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 10, 2026 13:19	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 10, 2026 13:17	Danylo Mocherniuk	CPPg++13.3.0	Success	4,846+1.28 RP
Apr 10, 2026 13:15	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 10, 2026 13:14	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 10, 2026 13:13	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 10, 2026 13:12	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 10, 2026 13:10	Danylo Mocherniuk	CPPg++13.3.0	Success	8,782
Apr 10, 2026 13:00	Danylo Mocherniuk	CPPg++13.3.0	Success	4,885
Apr 10, 2026 12:58	Danylo Mocherniuk	CPPg++13.3.0	Success	4,872
Apr 10, 2026 12:57	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 10, 2026 11:47	Danylo Mocherniuk	CPPg++13.3.0	Success	5,883
Apr 10, 2026 11:44	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 10, 2026 11:18	Danylo Mocherniuk	CPPg++13.3.0	Success	5,143
Apr 10, 2026 11:16	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 10, 2026 11:06	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 10, 2026 10:58	Danylo Mocherniuk	CPPg++13.3.0	Success	4,878
Apr 10, 2026 10:55	Danylo Mocherniuk	CPPg++13.3.0	Success	4,849+30.17 RP
Apr 10, 2026 10:52	Danylo Mocherniuk	CPPg++13.3.0	Success	4,921+1.24 RP
Apr 10, 2026 10:50	Danylo Mocherniuk	CPPg++13.3.0	Success	4,925
Apr 10, 2026 10:48	Danylo Mocherniuk	CPPg++13.3.0	Success	4,924+2.47 RP
Apr 10, 2026 10:46	Danylo Mocherniuk	CPPg++13.3.0	Success	4,951
Apr 10, 2026 10:44	Danylo Mocherniuk	CPPg++13.3.0	Success	6,005
Apr 10, 2026 10:39	Danylo Mocherniuk	CPPg++13.3.0	Success	4,930+82.11 RP
Apr 10, 2026 10:17	Danylo Mocherniuk	CPPg++13.3.0	Success	5,138+167.87 RP
Apr 10, 2026 10:00	Danylo Mocherniuk	CPPg++13.3.0	Success	19,466
Apr 10, 2026 08:56	poyo180605	CPPg++13.3.0	Success	45,982+5.96 RP
Apr 10, 2026 08:55	poyo180605	CPPclang++18.1.3	Success	47,277+6.92 RP
Apr 10, 2026 08:46	poyo180605	CPPclang++18.1.3	Error
Apr 10, 2026 08:37	poyo180605	CPPclang++18.1.3	Success	59,074
Apr 10, 2026 08:33	poyo180605	CPPclang++18.1.3	Success	92,399
Apr 10, 2026 08:16	poyo180605	CPPclang++18.1.3	Success	48,875+33.56 RP
Apr 10, 2026 08:01	poyo180605	CPPclang++18.1.3	Success	58,463+5.29 RP
Apr 10, 2026 07:05	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 10, 2026 04:01	poyo180605	CPPclang++18.1.3	Success	71,053
Apr 9, 2026 16:26	Oleg Skinderev	CPPg++13.3.0	Success	76,693+8.61 RP
Apr 9, 2026 16:25	Oleg Skinderev	CPPg++13.3.0	Success	82,559
Apr 9, 2026 16:24	Oleg Skinderev	CPPg++13.3.0	Success	82,112+96.43 RP
Apr 9, 2026 16:22	Oleg Skinderev	CPPg++13.3.0	Success	394,329+20.52 RP
Apr 9, 2026 14:41	olliecrow	CPPg++13.3.0	Error
Apr 9, 2026 09:33	Oleg Skinderev	CPPg++13.3.0	Success	2,067,860+4.84 RP
Apr 9, 2026 08:59	poyo180605	CPPclang++18.1.3	Success	64,671
Apr 9, 2026 08:59	poyo180605	CPPclang++18.1.3	Error
Apr 9, 2026 08:58	poyo180605	CPPclang++18.1.3	Error
Apr 9, 2026 08:57	poyo180605	CPPclang++18.1.3	Error
Apr 9, 2026 07:06	limanjun99	CPPg++13.3.0	Success	9,637
Apr 8, 2026 17:02	limanjun99	CPPg++13.3.0	Success	9,931
Apr 8, 2026 16:56	limanjun99	CPPg++13.3.0	Error
Apr 8, 2026 16:54	limanjun99	CPPg++13.3.0	Success	10,739
Apr 8, 2026 16:52	limanjun99	CPPg++13.3.0	Success	21,215
Apr 8, 2026 16:45	limanjun99	CPPg++13.3.0	Success	10,689
Apr 8, 2026 16:42	limanjun99	CPPg++13.3.0	Error
Apr 8, 2026 16:40	limanjun99	CPPg++13.3.0	Success	15,639

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