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 12, 2026 13:00	Victor Mercklé	CPPg++14.2.0	Success	3,789
Aug 12, 2026 12:55	Victor Mercklé	CPPg++14.2.0	Success	3,953
Aug 12, 2026 12:48	Victor Mercklé	CPPg++14.2.0	Success	4,309
Aug 12, 2026 12:32	Victor Mercklé	CPPg++14.2.0	Success	3,807
Aug 12, 2026 12:27	Victor Mercklé	CPPg++14.2.0	Success	3,793
Aug 12, 2026 12:22	Victor Mercklé	CPPg++14.2.0	Success	3,807
Aug 12, 2026 12:17	Victor Mercklé	CPPg++14.2.0	Success	3,806
Aug 12, 2026 12:05	Victor Mercklé	CPPg++14.2.0	Success	3,814
Aug 12, 2026 11:59	Victor Mercklé	CPPg++14.2.0	Success	3,794
Aug 12, 2026 11:54	Victor Mercklé	CPPg++14.2.0	Success	3,801
Aug 12, 2026 11:49	Victor Mercklé	CPPg++14.2.0	Success	3,879
Aug 12, 2026 10:19	Victor Mercklé	CPPg++14.2.0	Success	3,777
Aug 12, 2026 09:41	Victor Mercklé	CPPg++14.2.0	Success	5,183
Aug 12, 2026 09:28	Victor Mercklé	CPPg++14.2.0	Success	3,885
Aug 12, 2026 09:12	Victor Mercklé	CPPg++14.2.0	Success	16,387
Aug 12, 2026 08:46	Victor Mercklé	CPPg++14.2.0	Success	81,618
Aug 12, 2026 08:34	Victor Mercklé	CPPg++14.2.0	Success	3,981
Aug 12, 2026 08:27	Victor Mercklé	CPPg++14.2.0	Success	3,879
Aug 12, 2026 08:09	Victor Mercklé	CPPg++14.2.0	Success	3,826
Aug 12, 2026 08:04	Victor Mercklé	CPPg++14.2.0	Success	3,805
Aug 12, 2026 07:59	Victor Mercklé	CPPg++14.2.0	Success	9,231
Aug 12, 2026 07:54	Victor Mercklé	CPPg++14.2.0	Success	3,824
Aug 12, 2026 07:49	Victor Mercklé	CPPg++14.2.0	Success	75,412
Aug 12, 2026 07:44	Victor Mercklé	CPPg++14.2.0	Success	77,450
Aug 12, 2026 07:10	Victor Mercklé	CPPg++14.2.0	Success	3,888
Aug 12, 2026 07:05	Victor Mercklé	CPPg++14.2.0	Success	4,707
Aug 12, 2026 07:00	Victor Mercklé	CPPg++14.2.0	Success	4,615
Aug 12, 2026 06:55	Victor Mercklé	CPPg++14.2.0	Success	3,780
Aug 12, 2026 06:47	Victor Mercklé	CPPg++14.2.0	Success	3,788
Aug 12, 2026 06:42	Victor Mercklé	CPPg++14.2.0	Success	3,786
Aug 12, 2026 06:37	Victor Mercklé	CPPg++14.2.0	Success	3,789
Aug 12, 2026 06:33	flavio87	CPPg++14.2.0	Success	4,906+353.12 RP
Aug 12, 2026 06:32	Victor Mercklé	CPPg++14.2.0	Success	3,780
Aug 12, 2026 06:27	Victor Mercklé	CPPg++14.2.0	Success	4,264
Aug 12, 2026 06:20	Victor Mercklé	CPPg++14.2.0	Success	4,772
Aug 12, 2026 06:14	Victor Mercklé	CPPg++14.2.0	Success	11,461
Aug 12, 2026 06:09	Victor Mercklé	CPPg++14.2.0	Success	4,272
Aug 12, 2026 06:04	Victor Mercklé	CPPg++14.2.0	Success	4,238
Aug 12, 2026 05:41	Victor Mercklé	CPPg++14.2.0	Success	3,892
Aug 12, 2026 05:36	Victor Mercklé	CPPg++14.2.0	Success	3,823
Aug 12, 2026 05:31	Victor Mercklé	CPPg++14.2.0	Success	3,834
Aug 12, 2026 05:26	Victor Mercklé	CPPg++14.2.0	Success	3,824
Aug 12, 2026 05:20	Victor Mercklé	CPPg++14.2.0	Success	4,202
Aug 12, 2026 05:15	Victor Mercklé	CPPg++14.2.0	Success	4,238
Aug 12, 2026 05:10	Victor Mercklé	CPPg++14.2.0	Success	4,250
Aug 12, 2026 05:05	Victor Mercklé	CPPg++14.2.0	Success	77,890
Aug 12, 2026 05:00	Victor Mercklé	CPPg++14.2.0	Success	77,932
Aug 12, 2026 04:40	Victor Mercklé	CPPg++14.2.0	Success	4,395
Aug 12, 2026 04:08	Victor Mercklé	CPPg++14.2.0	Success	4,847
Aug 12, 2026 03:52	Victor Mercklé	CPPg++14.2.0	Success	4,091
Aug 12, 2026 03:18	Victor Mercklé	CPPg++14.2.0	Success	3,792
Aug 12, 2026 03:13	Victor Mercklé	CPPg++14.2.0	Success	3,790
Aug 12, 2026 03:08	Victor Mercklé	CPPg++14.2.0	Success	3,798
Aug 12, 2026 03:03	Victor Mercklé	CPPg++14.2.0	Success	3,792
Aug 12, 2026 02:58	Victor Mercklé	CPPg++14.2.0	Success	3,802
Aug 12, 2026 02:54	Victor Mercklé	CPPg++14.2.0	Success	6,224
Aug 12, 2026 02:48	Victor Mercklé	CPPg++14.2.0	Success	6,678
Aug 12, 2026 02:32	Victor Mercklé	CPPg++14.2.0	Success	3,843
Aug 12, 2026 02:27	Victor Mercklé	CPPg++14.2.0	Success	3,863
Aug 12, 2026 02:22	Victor Mercklé	CPPg++14.2.0	Success	3,813
Aug 12, 2026 02:12	Victor Mercklé	CPPg++14.2.0	Success	3,787
Aug 12, 2026 02:07	Victor Mercklé	CPPg++14.2.0	Success	4,396
Aug 12, 2026 02:02	Victor Mercklé	CPPg++14.2.0	Success	3,780
Aug 12, 2026 01:57	Victor Mercklé	CPPg++14.2.0	Success	3,868
Aug 12, 2026 01:46	Victor Mercklé	CPPg++14.2.0	Success	3,800
Aug 12, 2026 01:34	Victor Mercklé	CPPg++14.2.0	Success	3,789
Aug 12, 2026 01:28	Victor Mercklé	CPPg++14.2.0	Success	3,805
Aug 12, 2026 01:23	Victor Mercklé	CPPg++14.2.0	Success	3,816
Aug 12, 2026 01:18	Victor Mercklé	CPPg++14.2.0	Success	3,769
Aug 12, 2026 01:11	Victor Mercklé	CPPg++14.2.0	Success	3,766+25.14 RP
Aug 12, 2026 01:06	Victor Mercklé	CPPg++14.2.0	Success	80,768
Aug 12, 2026 01:01	Victor Mercklé	CPPg++14.2.0	Success	3,802+7.59 RP
Aug 12, 2026 00:56	Victor Mercklé	CPPg++14.2.0	Success	3,813+26.55 RP
Aug 12, 2026 00:51	Victor Mercklé	CPPg++14.2.0	Success	3,873
Aug 12, 2026 00:43	Victor Mercklé	CPPg++14.2.0	Success	6,081
Aug 12, 2026 00:31	Victor Mercklé	CPPg++14.2.0	Success	6,323
Aug 12, 2026 00:01	Victor Mercklé	CPPg++14.2.0	Success	5,610
Aug 11, 2026 23:53	Victor Mercklé	CPPg++14.2.0	Success	3,908
Aug 11, 2026 23:48	Victor Mercklé	CPPg++14.2.0	Success	3,858
Aug 11, 2026 23:22	Victor Mercklé	CPPg++14.2.0	Success	4,316
Aug 11, 2026 23:10	Victor Mercklé	CPPg++14.2.0	Success	3,860
Aug 11, 2026 23:04	Victor Mercklé	CPPg++14.2.0	Success	4,024
Aug 11, 2026 22:59	Victor Mercklé	CPPg++14.2.0	Success	4,400
Aug 11, 2026 22:54	Victor Mercklé	CPPg++14.2.0	Success	4,000
Aug 11, 2026 22:46	Victor Mercklé	CPPg++14.2.0	Success	3,872
Aug 11, 2026 22:41	Victor Mercklé	CPPg++14.2.0	Success	4,136
Aug 11, 2026 22:29	Victor Mercklé	CPPg++14.2.0	Success	3,853
Aug 11, 2026 22:24	Victor Mercklé	CPPg++14.2.0	Success	4,040
Aug 11, 2026 22:18	Victor Mercklé	CPPg++14.2.0	Success	3,966
Aug 11, 2026 22:11	Victor Mercklé	CPPg++14.2.0	Success	3,959
Aug 11, 2026 22:06	Victor Mercklé	CPPg++14.2.0	Success	4,436
Aug 11, 2026 21:47	Victor Mercklé	CPPg++14.2.0	Success	3,902
Aug 11, 2026 21:42	Victor Mercklé	CPPg++14.2.0	Success	4,959
Aug 11, 2026 21:35	Victor Mercklé	CPPg++14.2.0	Success	3,852
Aug 11, 2026 21:30	Victor Mercklé	CPPg++14.2.0	Success	4,027
Aug 11, 2026 21:25	Victor Mercklé	CPPg++14.2.0	Success	3,887
Aug 11, 2026 21:20	Victor Mercklé	CPPg++14.2.0	Success	4,292
Aug 11, 2026 21:15	Victor Mercklé	CPPg++14.2.0	Success	10,960
Aug 11, 2026 20:59	Victor Mercklé	CPPg++14.2.0	Success	3,864
Aug 11, 2026 20:54	Victor Mercklé	CPPg++14.2.0	Success	11,000

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