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
Jul 22, 2026 18:11	Kasper Kivimäki	CPPg++14.2.0	Success	58,050
Jul 22, 2026 18:07	Kasper Kivimäki	CPPg++14.2.0	Success	58,121
Jul 22, 2026 18:06	Kasper Kivimäki	CPPg++10.5.0	Success	62,232
Jul 22, 2026 17:56	Kasper Kivimäki	CPPg++10.5.0	Success	58,074
Jul 22, 2026 17:54	Kasper Kivimäki	CPPg++10.5.0	Success	89,003
Jul 22, 2026 17:17	Kevin Heavey	CPPg++14.2.0	Success	3,743
Jul 22, 2026 16:29	Kevin Heavey	CPPg++10.5.0	Success	3,560
Jul 22, 2026 16:15	Kevin Heavey	CPPg++10.5.0	Success	3,552+7.12 RP
Jul 22, 2026 15:58	Kevin Heavey	CPPg++10.5.0	Success	3,561+3.15 RP
Jul 22, 2026 15:43	Kevin Heavey	CPPg++14.2.0	Success	3,565+9.41 RP
Jul 22, 2026 15:35	Kevin Heavey	CPPg++14.2.0	Success	3,623
Jul 22, 2026 15:03	Kevin Heavey	CPPg++14.2.0	Success	4,287
Jul 22, 2026 14:35	Kevin Heavey	CPPg++14.2.0	Success	3,680
Jul 22, 2026 13:33	Kevin Heavey	CPPg++14.2.0	Success	4,058
Jul 22, 2026 12:17	Kevin Heavey	CPPg++14.2.0	Success	4,657
Jul 22, 2026 10:53	Kevin Heavey	CPPg++14.2.0	Success	4,137
Jul 22, 2026 10:04	Kevin Heavey	CPPg++14.2.0	Success	68,581
Jul 22, 2026 09:57	Kevin Heavey	CPPg++14.2.0	Success	68,004
Jul 22, 2026 09:47	Kevin Heavey	CPPg++14.2.0	Success	62,098
Jul 22, 2026 06:56	Kevin Heavey	CPPg++14.2.0	Success	4,262
Jul 22, 2026 06:11	Kevin Heavey	CPPg++14.2.0	Success	4,369
Jul 22, 2026 05:54	Kevin Heavey	CPPg++14.2.0	Success	77,348
Jul 22, 2026 04:43	Kevin Heavey	CPPg++14.2.0	Success	4,344
Jul 22, 2026 04:30	Kevin Heavey	CPPg++14.2.0	Success	4,372
Jul 22, 2026 03:47	Kevin Heavey	CPPg++14.2.0	Success	3,828
Jul 22, 2026 01:28	Kevin Heavey	CPPg++14.2	Success	3,750
Jul 21, 2026 22:52	Kevin Heavey	CPPg++14.2	Success	3,588
Jul 21, 2026 22:32	Kevin Heavey	CPPg++14.2	Success	4,000
Jul 21, 2026 22:24	Kevin Heavey	CPPg++14.2	Success	3,803
Jul 21, 2026 22:19	Kevin Heavey	CPPg++10.5.0	Success	3,964
Jul 21, 2026 22:08	Kevin Heavey	CPPg++14.2	Success	3,878
Jul 21, 2026 21:43	Kevin Heavey	CPPg++14.2	Success	3,737
Jul 21, 2026 21:15	Kevin Heavey	CPPg++14.2.0	Success	4,431
Jul 21, 2026 21:12	Kevin Heavey	CPPg++14.2.0	Success	70,209
Jul 21, 2026 21:03	Kevin Heavey	CPPg++14.2.0	Success	70,144
Jul 21, 2026 20:05	Kevin Heavey	CPPg++14.2.0	Success	3,859
Jul 21, 2026 19:51	Kevin Heavey	CPPg++14.2.0	Success	4,354
Jul 21, 2026 19:49	Kevin Heavey	CPPg++14.2.0	Success	4,984
Jul 21, 2026 19:36	Kevin Heavey	CPPg++14.2.0	Success	10,340
Jul 21, 2026 19:00	Kevin Heavey	CPPg++14.2.0	Success	3,993
Jul 21, 2026 18:44	Kevin Heavey	CPPg++14.2.0	Success	3,686
Jul 21, 2026 18:35	Kevin Heavey	CPPg++14.2.0	Success	3,648
Jul 21, 2026 16:26	Kevin Heavey	CPPg++14.2.0	Success	3,754
Jul 21, 2026 15:19	Kevin Heavey	CPPg++14.2.0	Success	3,805
Jul 21, 2026 14:53	Kevin Heavey	CPPg++14.2.0	Success	3,780
Jul 21, 2026 11:51	Kevin Heavey	CPPg++14.2.0	Success	3,797
Jul 21, 2026 10:54	Kevin Heavey	CPPg++14.2.0	Success	3,614
Jul 21, 2026 10:14	Kevin Heavey	CPPg++14.2.0	Success	3,577+8.57 RP
Jul 21, 2026 10:08	Kevin Heavey	CPPg++14.2.0	Error
Jul 21, 2026 09:58	Kevin Heavey	CPPg++14.2.0	Success	3,822
Jul 21, 2026 09:52	Kevin Heavey	CPPg++14.2.0	Success	3,860
Jul 21, 2026 09:20	Kevin Heavey	CPPg++14.2.0	Success	61,278
Jul 21, 2026 09:08	Kevin Heavey	CPPg++14.2.0	Success	3,797
Jul 21, 2026 08:46	Kevin Heavey	CPPg++14.2.0	Success	3,628
Jul 21, 2026 07:28	Kevin Heavey	CPPg++14.2.0	Success	3,588+6.20 RP
Jul 21, 2026 06:57	Kevin Heavey	CPPg++14.2.0	Success	3,619
Jul 21, 2026 06:52	Kevin Heavey	CPPg++14.2.0	Success	3,647
Jul 21, 2026 06:49	Kevin Heavey	CPPg++10.5.0	Success	3,661
Jul 21, 2026 05:19	Kevin Heavey	CPPg++14.2.0	Success	4,302
Jul 21, 2026 05:07	Kevin Heavey	CPPg++14.2.0	Success	4,170
Jul 21, 2026 05:02	Kevin Heavey	CPPg++14.2.0	Success	71,806
Jul 20, 2026 21:49	Kevin Heavey	RUSTrust-1.97.0	Success	8,586
Jul 20, 2026 21:37	Kevin Heavey	RUSTrust-1.97.0	Success	9,302
Jul 20, 2026 21:31	Kevin Heavey	RUSTrust-1.97.0	Success	22,486
Jul 20, 2026 21:17	allllekssssa	CPPg++14.2.0	Success	220,284
Jul 20, 2026 21:16	Kevin Heavey	RUSTrust-1.97.0	Success	9,996
Jul 20, 2026 21:16	allllekssssa	CPPg++10.5.0	Success	215,664
Jul 20, 2026 21:11	Kevin Heavey	RUSTrust-1.97.0	Success	53,459
Jul 20, 2026 20:56	allllekssssa	CPPg++10.5.0	Success	2,042,525
Jul 20, 2026 20:49	Kevin Heavey	CPPg++14.2.0	Success	3,634
Jul 20, 2026 20:43	Kevin Heavey	CPPg++14.2.0	Success	3,618
Jul 20, 2026 20:33	Paul	GOgo1.26.5	Success	127,966+1.21 RP
Jul 20, 2026 20:27	Paul	GOgo1.26.2	Error
Jul 20, 2026 20:23	Paul	GOgo1.26.2	Success	129,982+41.36 RP
Jul 20, 2026 20:21	allllekssssa	CPPg++10.5.0	Success	88,973+112.39 RP
Jul 20, 2026 20:20	Paul	GOgo1.26.2	Error
Jul 20, 2026 20:13	Paul	GOgo1.26.2	Error
Jul 20, 2026 20:10	Paul	GOgo1.26.2	Success	281,101+35.57 RP
Jul 20, 2026 19:26	Kevin Heavey	CPPg++14.2.0	Success	3,725
Jul 20, 2026 19:16	Ondřej Polanecký	CPPclang++19.1.1	Success	8,578
Jul 20, 2026 19:03	Ondřej Polanecký	CPPg++14.2.0	Success	9,466
Jul 20, 2026 18:32	Kevin Heavey	CPPg++14.2.0	Success	4,545
Jul 19, 2026 19:09	Ondřej Polanecký	CPPg++14.2.0	Success	7,294
Jul 19, 2026 18:21	Adam Folwarczny	CPPg++14.2.0	Success	11,649
Jul 19, 2026 18:19	Adam Folwarczny	CPPclang++18.1.3	Success	8,685
Jul 19, 2026 18:18	Adam Folwarczny	CPPg++14.2.0	Success	11,363
Jul 19, 2026 17:53	Ondřej Polanecký	CPPg++14.2.0	Success	105,488
Jul 19, 2026 17:41	Ondřej Polanecký	CPPg++14.2.0	Success	7,260
Jul 19, 2026 17:33	Adam Folwarczny	CPPg++14.2.0	Success	13,026
Jul 19, 2026 17:20	Adam Folwarczny	CPPg++14.2.0	Success	17,615
Jul 19, 2026 17:15	Adam Folwarczny	CPPg++14.2.0	Success	18,976
Jul 19, 2026 17:13	Adam Folwarczny	CPPg++14.2.0	Success	20,962
Jul 19, 2026 17:12	Adam Folwarczny	CPPclang++20.1.2	Success	19,355
Jul 19, 2026 17:10	Adam Folwarczny	CPPg++10.5.0	Success	21,925
Jul 19, 2026 16:52	Adam Folwarczny	CPPg++10.5.0	Success	40,250
Jul 19, 2026 16:44	Adam Folwarczny	CPPg++14.2.0	Success	47,763
Jul 19, 2026 15:40	Kevin Heavey	CPPg++14.2.0	Success	7,545
Jul 19, 2026 15:32	Kevin Heavey	CPPclang++18.1.3	Success	10,511
Jul 19, 2026 15:29	Kevin Heavey	CPPg++14.2.0	Success	10,459
Jul 19, 2026 13:47	Kevin Heavey	CPPg++14.2.0	Success	3,794

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