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 27, 2025 04:13	Tan Lip Wei	CPPg++13.3.0	Success	33,796+61.37 RP
Oct 27, 2025 04:13	Tan Lip Wei	CPPclang++18.1.3	Success	42,640+2.09 RP
Oct 27, 2025 04:12	Tan Lip Wei	CPPclang++18.1.3	Success	43,058
Oct 27, 2025 04:12	Tan Lip Wei	CPPclang++18.1.3	Success	43,773
Oct 27, 2025 04:12	Tan Lip Wei	CPPclang++18.1.3	Success	47,183
Oct 27, 2025 04:11	Tan Lip Wei	CPPclang++18.1.3	Success	46,097
Oct 27, 2025 04:06	Tan Lip Wei	CPPclang++18.1.3	Error
Oct 27, 2025 03:53	Tan Lip Wei	CPPclang++18.1.3	Success	54,547
Oct 27, 2025 03:53	Tan Lip Wei	CPPg++13.3.0	Success	51,351
Oct 27, 2025 02:06	Weitao Wan	CPPg++13.3.0	Success	72,156+72.16 RP
Oct 27, 2025 01:53	Weitao Wan	CPPg++13.3.0	Success	150,534+66.43 RP
Oct 27, 2025 01:51	Weitao Wan	CPPg++13.3.0	Error
Oct 27, 2025 01:47	Weitao Wan	CPPg++13.3.0	Error
Oct 27, 2025 01:35	Weitao Wan	CPPg++13.3.0	Error
Oct 27, 2025 01:32	Weitao Wan	CPPg++13.3.0	Error
Oct 26, 2025 13:12	dhaya	GOgo1.25.3	Success	273,398+36.58 RP
Oct 26, 2025 10:33	Tejas G.	CPPclang++18.1.3	Success	74,363
Oct 26, 2025 10:32	Tejas G.	CPPclang++18.1.3	Success	74,403
Oct 26, 2025 10:32	Tejas G.	CPPg++13.3.0	Success	73,263+0.58 RP
Oct 26, 2025 10:09	Tejas G.	CPPg++13.3.0	Error
Oct 26, 2025 09:25	Tejas G.	CPPg++13.3.0	Error
Oct 26, 2025 09:15	Tejas G.	CPPg++13.3.0	Error
Oct 26, 2025 04:34	Tan Lip Wei	CPPg++13.3.0	Error
Oct 26, 2025 04:30	Tan Lip Wei	CPPclang++18.1.3	Error
Oct 26, 2025 04:23	Tan Lip Wei	CPPclang++18.1.3	Error
Oct 26, 2025 04:20	Tan Lip Wei	CPPclang++18.1.3	Error
Oct 26, 2025 04:11	Tan Lip Wei	CPPclang++18.1.3	Success	45,359
Oct 26, 2025 04:07	Tan Lip Wei	CPPclang++18.1.3	Success	43,066
Oct 26, 2025 03:54	Tan Lip Wei	CPPclang++18.1.3	Success	43,024+13.81 RP
Oct 26, 2025 03:54	Tan Lip Wei	CPPg++13.3.0	Success	49,044
Oct 26, 2025 03:49	Tan Lip Wei	CPPg++13.3.0	Success	49,072
Oct 26, 2025 03:46	Tan Lip Wei	CPPg++13.3.0	Success	48,581
Oct 26, 2025 03:45	Tan Lip Wei	CPPclang++18.1.3	Success	46,833
Oct 26, 2025 03:44	Tan Lip Wei	CPPclang++18.1.3	Error
Oct 26, 2025 03:42	Tan Lip Wei	CPPclang++18.1.3	Success	74,059
Oct 26, 2025 03:41	Tan Lip Wei	CPPg++13.3.0	Success	67,896
Oct 26, 2025 03:21	Tan Lip Wei	CPPg++13.3.0	Success	48,631
Oct 26, 2025 01:59	Tan Lip Wei	CPPg++13.3.0	Success	64,473
Oct 26, 2025 01:50	Tan Lip Wei	CPPg++13.3.0	Success	67,781
Oct 26, 2025 01:49	Tan Lip Wei	CPPg++13.3.0	Success	67,830
Oct 26, 2025 01:49	Tan Lip Wei	CPPclang++18.1.3	Success	64,663
Oct 25, 2025 22:07	CheranMahalingam	CPPclang++18.1.3	Success	72,686
Oct 25, 2025 22:07	CheranMahalingam	CPPg++13.3.0	Success	55,754
Oct 25, 2025 22:06	CheranMahalingam	CPPg++13.3.0	Success	58,988
Oct 25, 2025 22:05	CheranMahalingam	CPPclang++18.1.3	Success	74,056
Oct 25, 2025 22:04	CheranMahalingam	CPPg++13.3.0	Success	58,955
Oct 25, 2025 22:03	CheranMahalingam	CPPclang++18.1.3	Success	74,363
Oct 24, 2025 10:59	Priyanshu Gupta	CPPg++13.3.0	Success	84,191
Oct 24, 2025 10:58	Tan Lip Wei	CPPg++13.3.0	Error
Oct 24, 2025 10:52	Priyanshu Gupta	CPPg++13.3.0	Success	73,344+0.01 RP
Oct 24, 2025 10:51	Priyanshu Gupta	CPPg++13.3.0	Success	73,926
Oct 24, 2025 10:49	Priyanshu Gupta	CPPg++13.3.0	Success	73,349+0.23 RP
Oct 24, 2025 10:47	Priyanshu Gupta	CPPg++13.3.0	Success	73,472+136.11 RP
Oct 24, 2025 07:41	Rashin Sergey	CPPclang++18.1.3	Success	54,719+0.17 RP
Oct 24, 2025 07:39	Rashin Sergey	CPPclang++18.1.3	Success	54,770+19.40 RP
Oct 24, 2025 07:38	Rashin Sergey	CPPclang++18.1.3	Success	83,438
Oct 24, 2025 07:37	Rashin Sergey	CPPclang++18.1.3	Error
Oct 24, 2025 07:34	Rashin Sergey	CPPclang++18.1.3	Success	81,808
Oct 24, 2025 07:33	Rashin Sergey	CPPclang++18.1.3	Success	86,772
Oct 24, 2025 07:31	Rashin Sergey	CPPclang++18.1.3	Success	393,398
Oct 24, 2025 07:28	Rashin Sergey	CPPclang++18.1.3	Error
Oct 24, 2025 07:27	Rashin Sergey	CPPclang++18.1.3	Error
Oct 24, 2025 07:26	Rashin Sergey	CPPclang++18.1.3	Error
Oct 24, 2025 06:48	Rashin Sergey	CPPclang++18.1.3	Error
Oct 24, 2025 06:47	Rashin Sergey	CPPg++13.3.0	Error
Oct 24, 2025 06:47	Rashin Sergey	CPPg++13.3.0	Error
Oct 24, 2025 06:45	Rashin Sergey	CPPg++13.3.0	Error
Oct 24, 2025 06:45	Rashin Sergey	CPPclang++18.1.3	Error
Oct 24, 2025 06:44	Rashin Sergey	CPPclang++18.1.3	Error
Oct 24, 2025 06:44	Rashin Sergey	CPPclang++18.1.3	Error
Oct 24, 2025 06:42	Rashin Sergey	CPPclang++18.1.3	Error
Oct 24, 2025 06:41	Rashin Sergey	CPPg++13.3.0	Success	65,179
Oct 24, 2025 06:40	Rashin Sergey	CPPclang++18.1.3	Success	61,280+14.32 RP
Oct 24, 2025 06:39	Rashin Sergey	CPPclang++18.1.3	Success	67,173+11.17 RP
Oct 24, 2025 06:38	Rashin Sergey	CPPg++13.3.0	Success	73,548
Oct 24, 2025 06:32	Rashin Sergey	CPPg++13.3.0	Success	72,623+132.86 RP
Oct 24, 2025 06:30	Rashin Sergey	CPPg++13.3.0	Error
Oct 24, 2025 06:24	Rashin Sergey	CPPg++13.3.0	Error
Oct 23, 2025 21:06	caando	CPPg++13.3.0	Success	6,043
Oct 23, 2025 20:40	caando	CPPg++13.3.0	Success	6,276
Oct 23, 2025 20:37	caando	CPPg++13.3.0	Success	6,144
Oct 23, 2025 20:21	caando	CPPg++13.3.0	Success	6,266
Oct 23, 2025 20:17	caando	CPPg++13.3.0	Success	6,090
Oct 23, 2025 20:08	caando	CPPg++13.3.0	Success	6,169
Oct 23, 2025 20:07	caando	CPPg++13.3.0	Success	6,227
Oct 23, 2025 20:06	caando	CPPg++13.3.0	Success	6,029
Oct 23, 2025 20:01	caando	CPPg++13.3.0	Success	7,057
Oct 23, 2025 19:59	caando	CPPg++13.3.0	Success	6,006
Oct 23, 2025 19:56	caando	CPPg++13.3.0	Success	6,010
Oct 23, 2025 19:52	caando	CPPg++13.3.0	Error
Oct 23, 2025 19:51	caando	CPPg++13.3.0	Error
Oct 23, 2025 19:49	caando	CPPg++13.3.0	Success	7,278
Oct 23, 2025 19:25	caando	CPPg++13.3.0	Success	6,000
Oct 23, 2025 19:24	caando	CPPg++13.3.0	Success	5,912
Oct 23, 2025 19:23	caando	CPPg++13.3.0	Success	6,152
Oct 23, 2025 19:22	caando	CPPg++13.3.0	Success	5,903
Oct 23, 2025 19:21	caando	CPPg++13.3.0	Success	6,016
Oct 23, 2025 19:21	caando	CPPg++13.3.0	Success	5,891+6.60 RP
Oct 23, 2025 19:19	caando	CPPg++13.3.0	Success	6,015
Oct 23, 2025 19:18	caando	CPPg++13.3.0	Success	6,095

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