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
Aug 25, 2026 01:39	Victor Mercklé	CPPg++14.2.0	Success	7,666
Aug 25, 2026 01:38	Victor Mercklé	CPPg++14.2.0	Success	7,236
Aug 25, 2026 01:35	Victor Mercklé	CPPg++14.2.0	Success	7,080
Aug 25, 2026 01:32	Victor Mercklé	CPPg++14.2.0	Success	7,436
Aug 25, 2026 01:30	Victor Mercklé	CPPg++14.2.0	Success	4,150
Aug 25, 2026 01:29	Victor Mercklé	CPPg++14.2.0	Success	7,049
Aug 25, 2026 01:26	Victor Mercklé	CPPg++14.2.0	Success	7,818
Aug 25, 2026 01:22	Victor Mercklé	CPPg++14.2.0	Success	4,213
Aug 25, 2026 01:13	Victor Mercklé	CPPg++14.2.0	Success	3,907
Aug 25, 2026 01:10	Victor Mercklé	CPPg++14.2.0	Success	4,040
Aug 25, 2026 01:08	Victor Mercklé	CPPg++14.2.0	Success	6,781
Aug 25, 2026 01:06	Victor Mercklé	CPPg++14.2.0	Success	7,022
Aug 25, 2026 01:03	Victor Mercklé	CPPg++14.2.0	Success	7,551
Aug 25, 2026 01:02	Victor Mercklé	CPPg++14.2.0	Success	4,017
Aug 25, 2026 00:59	Victor Mercklé	CPPg++14.2.0	Success	7,205
Aug 25, 2026 00:58	Victor Mercklé	CPPg++14.2.0	Success	5,077
Aug 25, 2026 00:56	Victor Mercklé	CPPg++14.2.0	Success	7,074
Aug 25, 2026 00:53	Victor Mercklé	CPPg++14.2.0	Success	4,210
Aug 25, 2026 00:46	Victor Mercklé	CPPg++14.2.0	Success	7,097
Aug 25, 2026 00:40	Victor Mercklé	CPPg++14.2.0	Success	7,058
Aug 25, 2026 00:37	Victor Mercklé	CPPg++14.2.0	Success	7,318
Aug 25, 2026 00:36	Victor Mercklé	CPPg++14.2.0	Success	3,830
Aug 25, 2026 00:34	Victor Mercklé	CPPg++14.2.0	Success	7,553
Aug 25, 2026 00:33	Victor Mercklé	CPPg++14.2.0	Success	3,850
Aug 25, 2026 00:31	Victor Mercklé	CPPg++14.2.0	Success	3,795
Aug 25, 2026 00:24	Victor Mercklé	CPPg++14.2.0	Success	6,116
Aug 25, 2026 00:24	Victor Mercklé	CPPg++14.2.0	Success	4,472
Aug 25, 2026 00:17	Victor Mercklé	CPPg++14.2.0	Success	3,906
Aug 25, 2026 00:12	Victor Mercklé	CPPg++14.2.0	Success	7,402
Aug 25, 2026 00:11	Victor Mercklé	CPPg++14.2.0	Success	3,948
Aug 25, 2026 00:03	Victor Mercklé	CPPg++14.2.0	Success	3,822
Aug 25, 2026 00:00	Victor Mercklé	CPPg++14.2.0	Success	3,836+5.00 RP
Aug 24, 2026 23:49	Victor Mercklé	CPPg++14.2.0	Success	3,885
Aug 24, 2026 23:44	Victor Mercklé	CPPg++14.2.0	Success	3,859
Aug 24, 2026 23:38	Victor Mercklé	CPPg++14.2.0	Success	3,946
Aug 24, 2026 23:35	Victor Mercklé	CPPg++14.2.0	Success	3,965
Aug 24, 2026 23:14	Victor Mercklé	CPPg++14.2.0	Success	4,024
Aug 24, 2026 23:10	Victor Mercklé	CPPg++14.2.0	Success	3,903
Aug 24, 2026 22:52	Victor Mercklé	CPPg++14.2.0	Success	4,165
Aug 24, 2026 22:45	Victor Mercklé	CPPg++14.2.0	Success	4,069
Aug 24, 2026 22:43	Victor Mercklé	CPPg++14.2.0	Success	3,905
Aug 24, 2026 22:39	Victor Mercklé	CPPg++14.2.0	Success	3,768
Aug 24, 2026 22:27	Victor Mercklé	CPPg++14.2.0	Success	5,182
Aug 24, 2026 22:22	Victor Mercklé	CPPg++14.2.0	Success	11,557
Aug 24, 2026 22:06	Victor Mercklé	CPPg++14.2.0	Success	3,869
Aug 24, 2026 22:02	Victor Mercklé	CPPg++14.2.0	Success	3,956
Aug 24, 2026 21:25	Victor Mercklé	CPPg++14.2.0	Success	3,872
Aug 24, 2026 21:17	Victor Mercklé	CPPg++14.2.0	Success	3,798
Aug 24, 2026 21:09	Victor Mercklé	CPPg++14.2.0	Success	4,381
Aug 24, 2026 20:49	Victor Mercklé	CPPg++14.2.0	Success	3,782
Aug 24, 2026 20:44	Victor Mercklé	CPPg++14.2.0	Success	3,798
Aug 24, 2026 20:40	Victor Mercklé	CPPg++14.2.0	Success	3,766
Aug 24, 2026 20:36	Victor Mercklé	CPPg++14.2.0	Success	3,883
Aug 24, 2026 20:30	Victor Mercklé	CPPg++14.2.0	Success	3,945
Aug 24, 2026 20:26	Victor Mercklé	CPPg++14.2.0	Success	3,785
Aug 24, 2026 20:22	Victor Mercklé	CPPg++14.2.0	Success	3,762
Aug 24, 2026 20:19	Victor Mercklé	CPPg++14.2.0	Success	5,905
Aug 24, 2026 20:15	Victor Mercklé	CPPg++14.2.0	Success	4,348
Aug 24, 2026 20:11	Victor Mercklé	CPPg++14.2.0	Success	3,881
Aug 24, 2026 20:00	Victor Mercklé	CPPg++14.2.0	Success	4,069
Aug 24, 2026 19:43	Victor Mercklé	CPPg++14.2.0	Success	3,875
Aug 24, 2026 19:34	Victor Mercklé	CPPg++14.2.0	Success	4,703
Aug 24, 2026 19:30	Victor Mercklé	CPPg++14.2.0	Success	3,855
Aug 24, 2026 19:27	Victor Mercklé	CPPg++14.2.0	Success	3,788
Aug 24, 2026 19:13	Victor Mercklé	CPPg++14.2.0	Success	3,863
Aug 24, 2026 19:06	Victor Mercklé	CPPg++14.2.0	Success	3,865
Aug 24, 2026 18:45	Victor Mercklé	CPPg++14.2.0	Success	3,790
Aug 24, 2026 18:37	Victor Mercklé	CPPg++14.2.0	Success	3,775
Aug 24, 2026 18:32	Victor Mercklé	CPPg++14.2.0	Success	5,077
Aug 24, 2026 18:26	Victor Mercklé	CPPg++14.2.0	Success	3,936
Aug 24, 2026 18:24	Victor Mercklé	CPPg++14.2.0	Success	8,772
Aug 24, 2026 18:21	Victor Mercklé	CPPg++14.2.0	Success	64,081
Aug 24, 2026 18:17	Victor Mercklé	CPPg++14.2.0	Success	64,387
Aug 24, 2026 18:00	Victor Mercklé	CPPg++14.2.0	Success	4,036
Aug 24, 2026 17:56	Victor Mercklé	CPPg++14.2.0	Success	4,419
Aug 24, 2026 17:54	Victor Mercklé	CPPg++14.2.0	Success	4,489
Aug 24, 2026 17:47	Victor Mercklé	CPPg++14.2.0	Success	7,025
Aug 24, 2026 17:39	Victor Mercklé	CPPg++14.2.0	Success	4,896
Aug 24, 2026 17:34	Victor Mercklé	CPPg++14.2.0	Success	3,776
Aug 24, 2026 17:31	Victor Mercklé	CPPg++14.2.0	Success	4,110
Aug 24, 2026 17:27	Victor Mercklé	CPPg++14.2.0	Success	3,770
Aug 24, 2026 17:23	Victor Mercklé	CPPg++14.2.0	Success	3,775
Aug 24, 2026 17:18	Victor Mercklé	CPPg++14.2.0	Success	3,797
Aug 24, 2026 17:11	Victor Mercklé	CPPg++14.2.0	Success	3,902
Aug 24, 2026 16:20	Victor Mercklé	CPPg++14.2.0	Success	6,500
Aug 24, 2026 11:08	Eilert Werner Hansen	CPPg++10.5.0	Success	89,000+112.36 RP
Aug 23, 2026 20:18	Victor Mercklé	CPPg++14.2.0	Success	3,774
Aug 23, 2026 20:16	Victor Mercklé	CPPg++14.2.0	Success	3,759
Aug 23, 2026 20:13	Victor Mercklé	CPPg++14.2.0	Success	3,865
Aug 23, 2026 20:09	Victor Mercklé	CPPg++14.2.0	Success	3,795
Aug 23, 2026 20:05	Victor Mercklé	CPPg++14.2.0	Success	3,776
Aug 23, 2026 20:02	Victor Mercklé	CPPg++14.2.0	Success	3,762
Aug 23, 2026 19:56	Victor Mercklé	CPPg++14.2.0	Success	3,790
Aug 23, 2026 19:51	Victor Mercklé	CPPg++14.2.0	Success	3,780
Aug 23, 2026 19:48	Victor Mercklé	CPPg++14.2.0	Success	3,763
Aug 23, 2026 19:44	Victor Mercklé	CPPg++14.2.0	Success	3,802
Aug 23, 2026 19:40	Victor Mercklé	CPPg++14.2.0	Success	3,887
Aug 23, 2026 19:37	Victor Mercklé	CPPg++14.2.0	Success	3,778
Aug 23, 2026 19:34	Victor Mercklé	CPPg++14.2.0	Success	3,838
Aug 23, 2026 19:29	Victor Mercklé	CPPg++14.2.0	Success	3,764

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