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 13, 2026 01:39	Victor Mercklé	CPPg++14.2.0	Success	46,029
Aug 13, 2026 00:55	Victor Mercklé	CPPg++14.2.0	Success	11,012
Aug 13, 2026 00:32	Victor Mercklé	CPPg++14.2.0	Success	3,773
Aug 13, 2026 00:27	Victor Mercklé	CPPg++14.2.0	Success	4,819
Aug 13, 2026 00:20	Victor Mercklé	CPPg++14.2.0	Success	3,788
Aug 13, 2026 00:15	Victor Mercklé	CPPg++14.2.0	Success	4,530
Aug 12, 2026 23:59	Victor Mercklé	CPPg++14.2.0	Success	4,458
Aug 12, 2026 23:53	Victor Mercklé	CPPg++14.2.0	Success	78,810
Aug 12, 2026 23:48	Victor Mercklé	CPPg++14.2.0	Success	3,814
Aug 12, 2026 23:43	Victor Mercklé	CPPg++14.2.0	Success	3,843
Aug 12, 2026 23:38	Victor Mercklé	CPPg++14.2.0	Success	4,679
Aug 12, 2026 23:33	Victor Mercklé	CPPg++14.2.0	Success	3,788
Aug 12, 2026 23:28	Victor Mercklé	CPPg++14.2.0	Success	3,801
Aug 12, 2026 23:23	Victor Mercklé	CPPg++14.2.0	Success	3,775
Aug 12, 2026 23:18	Victor Mercklé	CPPg++14.2.0	Success	3,786
Aug 12, 2026 23:13	Victor Mercklé	CPPg++14.2.0	Success	3,853
Aug 12, 2026 23:08	Victor Mercklé	CPPg++14.2.0	Success	3,759+4.94 RP
Aug 12, 2026 23:03	Victor Mercklé	CPPg++14.2.0	Success	3,773
Aug 12, 2026 22:58	Victor Mercklé	CPPg++14.2.0	Success	3,813
Aug 12, 2026 22:53	Victor Mercklé	CPPg++14.2.0	Success	3,769
Aug 12, 2026 22:45	Victor Mercklé	CPPg++14.2.0	Success	3,917
Aug 12, 2026 22:40	Victor Mercklé	CPPg++14.2.0	Success	3,859
Aug 12, 2026 22:32	Victor Mercklé	CPPg++14.2.0	Success	3,834
Aug 12, 2026 22:27	Victor Mercklé	CPPg++14.2.0	Success	3,833
Aug 12, 2026 16:20	Victor Mercklé	CPPclang++20.1.2	Success	4,311
Aug 12, 2026 16:10	Victor Mercklé	CPPg++14.2.0	Success	3,847
Aug 12, 2026 16:05	Victor Mercklé	CPPg++14.2.0	Success	3,867
Aug 12, 2026 16:00	Victor Mercklé	CPPg++14.2.0	Success	3,785
Aug 12, 2026 15:55	Victor Mercklé	CPPg++14.2.0	Success	3,794
Aug 12, 2026 15:50	Victor Mercklé	CPPg++14.2.0	Success	3,792
Aug 12, 2026 15:45	Victor Mercklé	CPPg++14.2.0	Success	3,774
Aug 12, 2026 15:40	Victor Mercklé	CPPg++14.2.0	Success	3,778
Aug 12, 2026 15:35	Victor Mercklé	CPPg++14.2.0	Success	3,828
Aug 12, 2026 15:30	Victor Mercklé	CPPg++14.2.0	Success	3,796
Aug 12, 2026 15:25	Victor Mercklé	CPPg++14.2.0	Success	3,771
Aug 12, 2026 15:20	Victor Mercklé	CPPg++14.2.0	Success	3,776
Aug 12, 2026 15:15	Victor Mercklé	CPPg++14.2.0	Success	3,795
Aug 12, 2026 15:10	Victor Mercklé	CPPg++14.2.0	Success	3,774
Aug 12, 2026 15:05	Victor Mercklé	CPPg++14.2.0	Success	3,781
Aug 12, 2026 15:00	Victor Mercklé	CPPg++14.2.0	Success	3,768
Aug 12, 2026 14:55	Victor Mercklé	CPPg++14.2.0	Success	4,578
Aug 12, 2026 14:50	Victor Mercklé	CPPg++14.2.0	Success	3,872
Aug 12, 2026 14:20	Victor Mercklé	CPPg++14.2.0	Success	3,777
Aug 12, 2026 14:14	Victor Mercklé	CPPg++14.2.0	Success	3,801
Aug 12, 2026 14:09	Victor Mercklé	CPPg++14.2.0	Success	3,771
Aug 12, 2026 14:03	Victor Mercklé	CPPg++14.2.0	Success	3,777
Aug 12, 2026 13:58	Victor Mercklé	CPPg++14.2.0	Success	3,799
Aug 12, 2026 13:53	Victor Mercklé	CPPg++14.2.0	Success	3,787
Aug 12, 2026 13:48	Victor Mercklé	CPPg++14.2.0	Success	80,207
Aug 12, 2026 13:43	Victor Mercklé	CPPg++14.2.0	Success	3,791
Aug 12, 2026 13:33	Victor Mercklé	CPPg++14.2.0	Success	5,183
Aug 12, 2026 13:25	Victor Mercklé	CPPg++14.2.0	Success	3,789
Aug 12, 2026 13:20	Victor Mercklé	CPPg++14.2.0	Success	3,812
Aug 12, 2026 13:15	Victor Mercklé	CPPg++14.2.0	Success	4,079
Aug 12, 2026 13:10	Victor Mercklé	CPPg++14.2.0	Success	3,915
Aug 12, 2026 13:05	Victor Mercklé	CPPg++14.2.0	Success	3,801
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

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