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
Apr 26, 2026 03:52	zielaj	CPPclang++20.1.2	Success	3,468
Apr 26, 2026 03:49	zielaj	CPPclang++18.1.3	Success	3,451
Apr 26, 2026 03:47	zielaj	CPPclang++18.1.3	Error
Apr 26, 2026 03:46	zielaj	CPPclang++20.1.2	Error
Apr 26, 2026 03:34	zielaj	CPPclang++20.1.2	Error
Apr 26, 2026 03:33	zielaj	CPPclang++19.1.1	Error
Apr 26, 2026 03:32	zielaj	CPPclang++20.1.2	Error
Apr 26, 2026 03:31	zielaj	CPPclang++20.1.2	Success	3,633
Apr 26, 2026 03:18	zielaj	CPPclang++20.1.2	Error
Apr 26, 2026 03:17	zielaj	CPPclang++20.1.2	Error
Apr 26, 2026 03:16	zielaj	CPPclang++20.1.2	Success	3,517
Apr 26, 2026 03:15	zielaj	CPPclang++20.1.2	Error
Apr 26, 2026 03:14	zielaj	CPPclang++20.1.2	Error
Apr 26, 2026 03:13	zielaj	CPPclang++20.1.2	Error
Apr 26, 2026 03:12	zielaj	CPPclang++20.1.2	Error
Apr 26, 2026 03:10	zielaj	CPPclang++20.1.2	Success	3,543
Apr 26, 2026 03:09	zielaj	CPPclang++20.1.2	Error
Apr 26, 2026 03:08	zielaj	CPPclang++20.1.2	Error
Apr 26, 2026 03:07	zielaj	CPPclang++20.1.2	Error
Apr 26, 2026 03:07	zielaj	CPPclang++20.1.2	Error
Apr 26, 2026 03:05	zielaj	CPPclang++20.1.2	Error
Apr 26, 2026 03:03	Charles Cabergs	CPPg++13.3.0	Success	17,307
Apr 26, 2026 03:03	zielaj	CPPclang++20.1.2	Success	3,454
Apr 26, 2026 03:02	zielaj	CPPclang++20.1.2	Success	3,474
Apr 26, 2026 03:00	zielaj	CPPclang++20.1.2	Success	3,478
Apr 26, 2026 02:54	zielaj	CPPclang++20.1.2	Error
Apr 26, 2026 02:50	zielaj	CPPclang++20.1.2	Error
Apr 26, 2026 02:49	zielaj	CPPclang++20.1.2	Error
Apr 26, 2026 02:48	zielaj	CPPclang++20.1.2	Success	3,488
Apr 26, 2026 02:46	zielaj	CPPclang++20.1.2	Error
Apr 26, 2026 02:44	zielaj	CPPclang++20.1.2	Success	3,495
Apr 26, 2026 02:42	zielaj	CPPclang++20.1.2	Error
Apr 26, 2026 02:40	zielaj	CPPclang++20.1.2	Error
Apr 26, 2026 02:39	zielaj	CPPclang++20.1.2	Success	3,470
Apr 26, 2026 00:42	zielaj	CPPclang++20.1.2	Error
Apr 26, 2026 00:38	zielaj	CPPclang++18.1.3	Error
Apr 26, 2026 00:33	olliecrow	CSHARP9.0.15	Error
Apr 26, 2026 00:26	olliecrow	CSHARP9.0.15	Error
Apr 26, 2026 00:20	olliecrow	CSHARP9.0.15	Success	82,784
Apr 26, 2026 00:13	zielaj	CPPclang++18.1.3	Success	3,447
Apr 26, 2026 00:12	zielaj	CPPclang++20.1.2	Error
Apr 26, 2026 00:09	olliecrow	RUSTrust-1.95.0	Success	6,159
Apr 26, 2026 00:07	zielaj	CPPclang++20.1.2	Error
Apr 26, 2026 00:05	olliecrow	RUSTrust-1.95.0	Error
Apr 25, 2026 23:29	zielaj	CPPclang++20.1.2	Error
Apr 25, 2026 23:27	zielaj	CPPclang++20.1.2	Error
Apr 25, 2026 23:26	zielaj	CPPclang++20.1.2	Error
Apr 25, 2026 23:24	zielaj	CPPclang++20.1.2	Error
Apr 25, 2026 23:21	zielaj	CPPclang++20.1.2	Error
Apr 25, 2026 23:16	zielaj	CPPclang++20.1.2	Error
Apr 25, 2026 23:14	zielaj	CPPclang++20.1.2	Error
Apr 25, 2026 23:11	zielaj	CPPclang++20.1.2	Error
Apr 25, 2026 23:08	zielaj	CPPclang++20.1.2	Error
Apr 25, 2026 23:01	zielaj	CPPclang++20.1.2	Error
Apr 25, 2026 18:34	olliecrow	CSHARP9.0.15	Error
Apr 25, 2026 18:22	olliecrow	RUSTrust-1.95.0	Success	6,359
Apr 25, 2026 16:23	olliecrow	CSHARP9.0.15	Error
Apr 25, 2026 11:12	olliecrow	RUSTrust-1.95.0	Error
Apr 25, 2026 09:50	Charles Cabergs	CPPg++13.3.0	Success	18,116
Apr 25, 2026 04:38	Charles Cabergs	CPPg++13.3.0	Success	16,985+23.14 RP
Apr 25, 2026 04:00	Charles Cabergs	CPPg++13.3.0	Success	17,680+0.89 RP
Apr 25, 2026 03:32	Charles Cabergs	CPPg++13.3.0	Success	17,746
Apr 25, 2026 01:52	Charles Cabergs	CPPg++13.3.0	Success	17,708+48.27 RP
Apr 25, 2026 01:35	Charles Cabergs	CPPg++13.3.0	Success	19,363+14.79 RP
Apr 24, 2026 20:09	olliecrow	CSHARP9.0.15	Success	19,504
Apr 24, 2026 16:44	Charles Cabergs	CPPg++13.3.0	Success	20,196
Apr 24, 2026 15:54	Charles Cabergs	CPPg++13.3.0	Success	20,220
Apr 24, 2026 15:15	Charles Cabergs	CPPg++13.3.0	Success	19,946
Apr 24, 2026 15:05	Charles Cabergs	CPPg++13.3.0	Success	19,934+0.18 RP
Apr 24, 2026 14:40	TudyM	CPPg++10.5.0	Success	49,783
Apr 24, 2026 14:38	TudyM	CPPg++10.5.0	Success	50,160
Apr 24, 2026 14:29	olliecrow	CSHARP9.0.14	Error
Apr 24, 2026 14:27	TudyM	CPPg++10.5.0	Success	49,726+29.06 RP
Apr 24, 2026 14:12	TudyM	CPPg++10.5.0	Success	58,127+60.18 RP
Apr 24, 2026 14:08	olliecrow	RUSTrust-1.95.0	Error
Apr 24, 2026 14:06	olliecrow	RUSTrust-1.95.0	Success	6,450
Apr 24, 2026 14:03	Charles Cabergs	CPPg++13.3.0	Success	21,098
Apr 24, 2026 13:51	TudyM	CPPg++10.5.0	Success	94,629
Apr 24, 2026 13:50	TudyM	CPPg++10.5.0	Error
Apr 24, 2026 13:44	TudyM	CPPg++10.5.0	Success	89,398+111.86 RP
Apr 24, 2026 10:46	Dominique Garmier	CPPclang++18.1.3	Success	6,875
Apr 24, 2026 09:32	Charles Cabergs	CPPg++13.3.0	Success	20,101
Apr 24, 2026 08:30	olliecrow	RUSTrust-1.94.0	Success	6,364
Apr 24, 2026 08:29	Dominique Garmier	CPPclang++18.1.3	Success	8,317
Apr 24, 2026 08:23	Dominique Garmier	CPPclang++18.1.3	Success	7,639
Apr 24, 2026 08:22	Dominique Garmier	CPPclang++18.1.3	Success	7,270
Apr 24, 2026 08:16	Dominique Garmier	CPPclang++18.1.3	Success	6,849
Apr 24, 2026 08:15	Dominique Garmier	CPPclang++18.1.3	Success	6,836+0.86 RP
Apr 24, 2026 08:14	Dominique Garmier	CPPclang++18.1.3	Success	6,869
Apr 24, 2026 08:13	Dominique Garmier	CPPclang++18.1.3	Success	6,840+13.34 RP
Apr 24, 2026 08:13	Dominique Garmier	CPPclang++18.1.3	Success	7,747
Apr 24, 2026 08:10	Dominique Garmier	CPPclang++18.1.3	Success	7,105
Apr 24, 2026 08:08	Dominique Garmier	CPPclang++18.1.3	Success	6,903+67.62 RP
Apr 24, 2026 08:07	Dominique Garmier	CPPclang++18.1.3	Success	7,358
Apr 24, 2026 08:06	Dominique Garmier	CPPclang++18.1.3	Success	7,310
Apr 24, 2026 08:03	Dominique Garmier	CPPclang++18.1.3	Success	9,898
Apr 24, 2026 08:02	Dominique Garmier	CPPclang++18.1.3	Success	7,376
Apr 24, 2026 08:02	Dominique Garmier	CPPclang++18.1.3	Success	7,241+9.09 RP
Apr 24, 2026 08:01	Dominique Garmier	CPPclang++18.1.3	Success	7,365
Apr 24, 2026 08:01	Dominique Garmier	CPPclang++18.1.3	Success	7,289+49.00 RP

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