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
Oct 13, 2025 02:53	CheranMahalingam	CPPg++13.3.0	Success	57,659
Oct 13, 2025 02:52	CheranMahalingam	CPPg++13.3.0	Success	57,650
Oct 13, 2025 02:52	CheranMahalingam	CPPg++13.3.0	Success	57,661
Oct 13, 2025 02:46	CheranMahalingam	CPPg++13.3.0	Success	93,593
Oct 13, 2025 02:30	CheranMahalingam	CPPg++13.3.0	Error
Oct 12, 2025 21:17	Marco Barbone	CPPclang++18.1.3	Success	32,240
Oct 12, 2025 21:16	Marco Barbone	CPPclang++18.1.3	Success	31,915
Oct 12, 2025 21:15	Marco Barbone	CPPg++13.3.0	Success	32,164
Oct 12, 2025 21:13	Marco Barbone	CPPg++13.3.0	Success	32,190
Oct 12, 2025 21:13	Marco Barbone	CPPg++13.3.0	Success	32,152
Oct 12, 2025 21:12	Marco Barbone	CPPg++13.3.0	Success	32,198
Oct 12, 2025 21:11	Marco Barbone	CPPg++13.3.0	Success	32,222
Oct 12, 2025 21:10	Marco Barbone	CPPg++13.3.0	Success	32,209
Oct 12, 2025 21:09	Marco Barbone	CPPg++13.3.0	Success	32,734
Oct 12, 2025 21:08	Marco Barbone	CPPg++13.3.0	Success	32,709
Oct 12, 2025 21:06	Marco Barbone	CPPg++13.3.0	Success	32,749
Oct 12, 2025 21:04	Marco Barbone	CPPg++13.3.0	Success	32,734
Oct 12, 2025 20:57	Marco Barbone	CPPg++13.3.0	Success	32,700
Oct 12, 2025 20:56	Marco Barbone	CPPg++13.3.0	Success	36,218
Oct 12, 2025 20:56	Marco Barbone	CPPg++13.3.0	Success	31,695
Oct 12, 2025 20:48	Marco Barbone	CPPg++13.3.0	Success	31,722
Oct 12, 2025 20:47	Marco Barbone	CPPg++13.3.0	Success	29,793
Oct 12, 2025 20:44	Marco Barbone	CPPg++13.3.0	Success	29,781
Oct 12, 2025 20:02	caando	CPPg++13.3.0	Success	6,556
Oct 12, 2025 19:35	caando	CPPg++13.3.0	Success	5,967+4.76 RP
Oct 12, 2025 17:26	CheranMahalingam	CPPg++13.3.0	Error
Oct 12, 2025 17:23	CheranMahalingam	CPPg++13.3.0	Error
Oct 12, 2025 17:20	CheranMahalingam	CPPg++13.3.0	Error
Oct 12, 2025 17:18	CheranMahalingam	CPPg++13.3.0	Error
Oct 12, 2025 17:15	CheranMahalingam	CPPg++13.3.0	Error
Oct 12, 2025 00:21	Marco Barbone	CPPg++13.3.0	Success	31,806
Oct 11, 2025 23:44	CheranMahalingam	CPPg++13.3.0	Error
Oct 11, 2025 23:40	Marco Barbone	CPPg++13.3.0	Success	31,721
Oct 11, 2025 23:33	Marco Barbone	CPPg++13.3.0	Success	31,936
Oct 11, 2025 23:33	Marco Barbone	CPPclang++18.1.3	Success	31,531
Oct 11, 2025 22:59	Marco Barbone	CPPclang++18.1.3	Success	34,913
Oct 11, 2025 22:47	Marco Barbone	CPPclang++18.1.3	Success	34,710
Oct 11, 2025 22:30	Marco Barbone	CPPclang++18.1.3	Success	29,866
Oct 11, 2025 22:30	Marco Barbone	CPPclang++18.1.3	Success	28,839
Oct 11, 2025 22:05	Marco Barbone	CPPclang++18.1.3	Success	30,338
Oct 11, 2025 21:55	Marco Barbone	CPPclang++18.1.3	Success	30,393
Oct 11, 2025 21:53	Marco Barbone	CPPclang++18.1.3	Success	29,121
Oct 11, 2025 21:52	Marco Barbone	CPPclang++18.1.3	Success	29,968
Oct 11, 2025 21:52	Marco Barbone	CPPclang++18.1.3	Success	29,080
Oct 11, 2025 21:49	Marco Barbone	CPPclang++18.1.3	Success	29,005
Oct 11, 2025 21:49	Marco Barbone	CPPg++13.3.0	Success	30,353
Oct 11, 2025 21:48	Marco Barbone	CPPg++13.3.0	Success	30,373
Oct 11, 2025 21:48	Marco Barbone	CPPg++13.3.0	Success	30,424
Oct 11, 2025 21:08	Marco Barbone	CPPg++13.3.0	Success	31,525
Oct 11, 2025 19:43	Serge Smirnov	CPPg++13.3.0	Success	28,874
Oct 11, 2025 19:42	Serge Smirnov	CPPg++13.3.0	Success	63,088
Oct 11, 2025 19:41	Serge Smirnov	CPPg++13.3.0	Success	63,099
Oct 11, 2025 19:39	Serge Smirnov	CPPg++13.3.0	Success	61,425
Oct 11, 2025 19:37	Serge Smirnov	CPPg++13.3.0	Success	55,252
Oct 11, 2025 19:35	Serge Smirnov	CPPg++13.3.0	Error
Oct 11, 2025 19:34	Serge Smirnov	CPPg++13.3.0	Success	28,880
Oct 11, 2025 19:27	Serge Smirnov	CPPg++13.3.0	Error
Oct 11, 2025 19:25	Serge Smirnov	CPPg++13.3.0	Error
Oct 11, 2025 19:22	Serge Smirnov	CPPg++13.3.0	Error
Oct 11, 2025 19:14	Serge Smirnov	CPPg++13.3.0	Success	28,876
Oct 11, 2025 19:13	Serge Smirnov	CPPg++13.3.0	Success	71,217
Oct 11, 2025 19:13	Serge Smirnov	CPPg++13.3.0	Success	70,972
Oct 11, 2025 19:09	Serge Smirnov	CPPg++13.3.0	Success	60,508
Oct 11, 2025 19:06	Serge Smirnov	CPPg++13.3.0	Success	57,058
Oct 11, 2025 19:04	Serge Smirnov	CPPg++13.3.0	Success	63,614
Oct 11, 2025 19:02	Serge Smirnov	CPPg++13.3.0	Error
Oct 11, 2025 19:00	Serge Smirnov	CPPg++13.3.0	Success	56,460
Oct 11, 2025 18:59	Serge Smirnov	CPPg++13.3.0	Error
Oct 11, 2025 18:57	Serge Smirnov	CPPg++13.3.0	Error
Oct 11, 2025 18:54	Serge Smirnov	CPPg++13.3.0	Error
Oct 11, 2025 18:52	Serge Smirnov	CPPg++13.3.0	Success	49,281
Oct 11, 2025 18:48	Serge Smirnov	CPPg++13.3.0	Success	59,550
Oct 11, 2025 18:46	Serge Smirnov	CPPg++13.3.0	Success	62,384
Oct 11, 2025 18:42	Serge Smirnov	CPPg++13.3.0	Success	66,739
Oct 11, 2025 18:40	Serge Smirnov	CPPg++13.3.0	Success	70,887
Oct 11, 2025 18:34	Serge Smirnov	CPPg++13.3.0	Success	115,380
Oct 11, 2025 13:24	e1011	CPPg++13.3.0	Success	63,319+10.01 RP
Oct 11, 2025 13:23	e1011	CPPg++13.3.0	Success	67,602+12.73 RP
Oct 11, 2025 13:21	e1011	CPPg++13.3.0	Success	73,965+135.20 RP
Oct 11, 2025 13:20	e1011	CPPg++13.3.0	Error
Oct 11, 2025 05:12	Marco Barbone	CPPg++13.3.0	Success	31,529
Oct 11, 2025 05:06	Marco Barbone	CPPg++13.3.0	Success	56,657
Oct 11, 2025 05:04	Marco Barbone	CPPclang++18.1.3	Success	43,298
Oct 11, 2025 05:00	Marco Barbone	CPPclang++18.1.3	Success	29,185
Oct 11, 2025 04:54	Marco Barbone	CPPclang++18.1.3	Success	29,173
Oct 11, 2025 04:48	Marco Barbone	CPPclang++18.1.3	Success	29,531
Oct 11, 2025 04:46	Marco Barbone	CPPclang++18.1.3	Success	29,188
Oct 11, 2025 04:46	Marco Barbone	CPPclang++18.1.3	Success	29,986
Oct 11, 2025 04:46	Marco Barbone	CPPclang++18.1.3	Success	30,526
Oct 11, 2025 04:44	Marco Barbone	CPPclang++18.1.3	Success	29,192
Oct 11, 2025 04:39	Marco Barbone	CPPclang++18.1.3	Success	28,818
Oct 11, 2025 04:38	Marco Barbone	CPPclang++18.1.3	Success	28,822
Oct 11, 2025 04:35	Marco Barbone	CPPclang++18.1.3	Success	28,812
Oct 11, 2025 04:31	Marco Barbone	CPPclang++18.1.3	Success	29,035
Oct 11, 2025 04:31	Marco Barbone	CPPclang++18.1.3	Success	28,663
Oct 11, 2025 04:30	Marco Barbone	CPPg++13.3.0	Success	33,502
Oct 11, 2025 04:30	Marco Barbone	CPPclang++18.1.3	Success	29,886
Oct 11, 2025 04:21	Marco Barbone	CPPclang++18.1.3	Success	30,045
Oct 11, 2025 04:20	Marco Barbone	CPPg++13.3.0	Success	31,533
Oct 11, 2025 04:20	Marco Barbone	CPPclang++18.1.3	Success	30,050

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