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
Feb 14, 2026 00:07	Mikołaj Uzarski	CPPclang++18.1.3	Success	6,322+122.99 RP
Feb 14, 2026 00:07	Mikołaj Uzarski	CPPclang++18.1.3	Success	7,211
Feb 13, 2026 23:49	Mikołaj Uzarski	CPPclang++18.1.3	Success	6,855+22.63 RP
Feb 13, 2026 23:45	Mikołaj Uzarski	CPPclang++18.1.3	Success	7,004
Feb 13, 2026 23:45	Mikołaj Uzarski	CPPclang++18.1.3	Success	6,963+6.98 RP
Feb 13, 2026 23:40	Mikołaj Uzarski	CPPclang++18.1.3	Success	7,000
Feb 13, 2026 23:34	Mikołaj Uzarski	CPPclang++18.1.3	Success	6,997+3.87 RP
Feb 13, 2026 23:33	Mikołaj Uzarski	CPPclang++18.1.3	Success	7,117
Feb 13, 2026 23:32	Mikołaj Uzarski	CPPclang++18.1.3	Success	7,481
Feb 13, 2026 23:31	Mikołaj Uzarski	CPPclang++18.1.3	Success	7,791
Feb 13, 2026 23:25	Mikołaj Uzarski	CPPclang++18.1.3	Success	7,130
Feb 13, 2026 23:23	Mikołaj Uzarski	CPPclang++18.1.3	Success	7,016+16.07 RP
Feb 13, 2026 23:20	Mikołaj Uzarski	CPPclang++18.1.3	Success	29,330
Feb 13, 2026 23:15	Mikołaj Uzarski	CPPclang++18.1.3	Error
Feb 13, 2026 21:19	Daniel Mastalerz	CPPclang++18.1.3	Success	6,749
Feb 13, 2026 21:18	Daniel Mastalerz	CPPg++13.3.0	Success	8,505
Feb 13, 2026 21:16	Daniel Mastalerz	CPPclang++18.1.3	Success	6,656+7.19 RP
Feb 13, 2026 21:15	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 13, 2026 21:13	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 13, 2026 21:12	Daniel Mastalerz	CPPclang++18.1.3	Success	6,688+29.37 RP
Feb 13, 2026 21:11	Daniel Mastalerz	CPPclang++18.1.3	Success	6,822+41.34 RP
Feb 13, 2026 21:10	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 13, 2026 21:09	Daniel Mastalerz	CPPclang++18.1.3	Success	7,020+76.43 RP
Feb 13, 2026 21:07	Daniel Mastalerz	CPPclang++18.1.3	Success	7,418+4.71 RP
Feb 13, 2026 21:06	Daniel Mastalerz	CPPclang++18.1.3	Success	7,444+89.45 RP
Feb 13, 2026 21:05	Daniel Mastalerz	CPPclang++18.1.3	Success	9,602
Feb 13, 2026 20:35	Daniel Mastalerz	CPPclang++18.1.3	Success	8,568
Feb 13, 2026 20:34	wn	CPPg++13.3.0	Error
Feb 13, 2026 20:34	wn	CPPg++13.3.0	Error
Feb 13, 2026 20:31	wn	CPPg++13.3.0	Error
Feb 13, 2026 20:31	wn	CPPg++13.3.0	Error
Feb 13, 2026 20:29	wn	CPPg++13.3.0	Error
Feb 13, 2026 20:20	Daniel Mastalerz	CPPclang++18.1.3	Success	7,975+1.10 RP
Feb 13, 2026 20:19	Krishn Parasar	CPPg++13.3.0	Success	84,196+113.93 RP
Feb 13, 2026 20:00	Krishn Parasar	CPPg++13.3.0	Success	2,067,097+4.84 RP
Feb 13, 2026 19:58	Krishn Parasar	CPPg++13.3.0	Error
Feb 13, 2026 19:57	Daniel Mastalerz	CPPclang++18.1.3	Success	7,982+37.90 RP
Feb 13, 2026 19:31	wn	CPPg++13.3.0	Error
Feb 13, 2026 19:30	wn	CPPg++13.3.0	Error
Feb 13, 2026 18:53	wn	CPPg++13.3.0	Error
Feb 13, 2026 18:42	wn	CPPg++13.3.0	Error
Feb 13, 2026 18:23	wn	CPPg++13.3.0	Error
Feb 13, 2026 14:21	wn	CPPg++13.3.0	Error
Feb 13, 2026 14:18	wn	CPPg++13.3.0	Error
Feb 13, 2026 14:15	wn	CPPg++13.3.0	Error
Feb 13, 2026 14:15	wn	CPPg++13.3.0	Error
Feb 13, 2026 14:13	wn	CPPg++13.3.0	Error
Feb 13, 2026 14:10	wn	CPPg++13.3.0	Error
Feb 13, 2026 14:08	wn	CPPg++13.3.0	Error
Feb 12, 2026 18:33	CheckHarry	CPPg++13.3.0	Success	56,605+0.03 RP
Feb 12, 2026 18:32	CheckHarry	CPPg++13.3.0	Success	77,064
Feb 12, 2026 18:30	CheckHarry	CPPg++13.3.0	Success	77,391
Feb 12, 2026 18:30	CheckHarry	CPPg++13.3.0	Success	78,608
Feb 12, 2026 18:29	CheckHarry	CPPg++13.3.0	Success	78,590
Feb 12, 2026 18:27	CheckHarry	CPPg++13.3.0	Error
Feb 12, 2026 18:25	CheckHarry	CPPg++13.3.0	Error
Feb 12, 2026 18:14	CheckHarry	CPPg++13.3.0	Error
Feb 12, 2026 18:12	CheckHarry	CPPg++13.3.0	Success	83,620
Feb 12, 2026 17:50	CheckHarry	CPPg++13.3.0	Success	56,615+171.79 RP
Feb 12, 2026 17:47	CheckHarry	CPPg++13.3.0	Error
Feb 12, 2026 17:42	CheckHarry	CPPg++13.3.0	Error
Feb 12, 2026 17:41	CheckHarry	CPPg++13.3.0	Error
Feb 12, 2026 16:58	CheckHarry	CPPg++13.3.0	Success	2,066,673+4.84 RP
Feb 12, 2026 08:01	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 12, 2026 05:23	olliecrow	CPPg++13.3.0	Success	5,958
Feb 12, 2026 04:41	olliecrow	CPPg++13.3.0	Success	6,328
Feb 12, 2026 04:29	olliecrow	CPPg++13.3.0	Success	6,023
Feb 12, 2026 03:36	olliecrow	CPPg++13.3.0	Error
Feb 12, 2026 03:31	olliecrow	CPPg++13.3.0	Success	60,655
Feb 12, 2026 03:23	olliecrow	CPPg++13.3.0	Success	9,784
Feb 12, 2026 03:18	olliecrow	CPPg++13.3.0	Success	9,621
Feb 12, 2026 01:09	olliecrow	CPPg++13.3.0	Error
Feb 12, 2026 01:02	olliecrow	CPPg++13.3.0	Error
Feb 12, 2026 00:54	olliecrow	CPPg++13.3.0	Error
Feb 12, 2026 00:47	olliecrow	CPPg++13.3.0	Error
Feb 12, 2026 00:44	olliecrow	CPPg++13.3.0	Error
Feb 12, 2026 00:39	olliecrow	CPPg++13.3.0	Error
Feb 12, 2026 00:26	olliecrow	CPPg++13.3.0	Error
Feb 12, 2026 00:19	olliecrow	CPPg++13.3.0	Error
Feb 12, 2026 00:09	olliecrow	CPPg++13.3.0	Success	6,393
Feb 12, 2026 00:05	olliecrow	CPPg++13.3.0	Error
Feb 12, 2026 00:03	olliecrow	CPPg++13.3.0	Success	7,207
Feb 11, 2026 23:52	olliecrow	CPPg++13.3.0	Success	61,033
Feb 11, 2026 22:19	olliecrow	CPPg++13.3.0	Success	6,207
Feb 11, 2026 22:15	olliecrow	CPPg++13.3.0	Success	6,481
Feb 11, 2026 22:05	olliecrow	CPPg++13.3.0	Success	6,002
Feb 11, 2026 21:59	olliecrow	CPPg++13.3.0	Success	6,133
Feb 11, 2026 21:38	olliecrow	CPPg++13.3.0	Success	6,011
Feb 11, 2026 21:24	olliecrow	CPPg++13.3.0	Success	6,052
Feb 11, 2026 21:17	olliecrow	CPPg++13.3.0	Success	6,209
Feb 11, 2026 20:46	olliecrow	CPPclang++18.1.3	Success	6,024
Feb 11, 2026 20:41	olliecrow	CPPg++13.3.0	Success	7,084
Feb 11, 2026 20:37	olliecrow	CPPg++13.3.0	Success	6,093
Feb 11, 2026 20:29	olliecrow	CPPg++13.3.0	Success	6,024
Feb 11, 2026 20:22	olliecrow	CPPg++13.3.0	Success	6,062
Feb 11, 2026 20:05	olliecrow	CPPg++13.3.0	Success	5,736+100.80 RP
Feb 11, 2026 19:27	olliecrow	CPPg++13.3.0	Success	6,494
Feb 11, 2026 19:27	olliecrow	CPPg++13.3.0	Success	6,490
Feb 11, 2026 19:27	olliecrow	CPPg++13.3.0	Success	6,482
Feb 11, 2026 19:27	olliecrow	CPPg++13.3.0	Success	6,482

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