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 17, 2026 10:33	Joad Nacer	CPPclang++18.1.3	Success	11,749
Apr 17, 2026 08:08	Charles Cabergs	CPPg++13.3.0	Success	64,190
Apr 17, 2026 08:08	Charles Cabergs	CPPclang++18.1.3	Success	64,211
Apr 17, 2026 07:58	Charles Cabergs	CPPclang++18.1.3	Success	21,752
Apr 17, 2026 07:58	Charles Cabergs	CPPg++13.3.0	Success	20,906+31.80 RP
Apr 17, 2026 07:28	Charles Cabergs	CPPg++13.3.0	Success	22,395+346.95 RP
Apr 17, 2026 07:20	Charles Cabergs	CPPg++13.3.0	Error
Apr 17, 2026 06:57	Charles Cabergs	CPPg++13.3.0	Success	100,426+99.58 RP
Apr 17, 2026 01:13	olliecrow	CPPclang++18.1.3	Error
Apr 17, 2026 00:29	Josu San Martin	CPPclang++18.1.3	Success	5,010
Apr 16, 2026 23:25	olliecrow	RUSTrust-1.94.0	Error
Apr 16, 2026 23:14	olliecrow	RUSTrust-1.94.0	Error
Apr 16, 2026 23:01	Josu San Martin	CPPclang++18.1.3	Success	7,302
Apr 16, 2026 22:58	Josu San Martin	CPPclang++18.1.3	Success	5,074
Apr 16, 2026 22:54	Josu San Martin	CPPclang++18.1.3	Success	4,997
Apr 16, 2026 22:45	Josu San Martin	CPPclang++18.1.3	Success	5,183
Apr 16, 2026 22:42	Josu San Martin	CPPclang++18.1.3	Success	4,969
Apr 16, 2026 22:40	Josu San Martin	CPPclang++18.1.3	Success	5,399
Apr 16, 2026 22:37	Josu San Martin	CPPclang++18.1.3	Error	+26.89 RP
Apr 16, 2026 22:27	Josu San Martin	CPPclang++18.1.3	Success	5,050
Apr 16, 2026 22:25	Josu San Martin	CPPclang++18.1.3	Success	5,045
Apr 16, 2026 22:22	Josu San Martin	CPPclang++18.1.3	Success	5,124
Apr 16, 2026 22:19	Josu San Martin	CPPclang++18.1.3	Success	5,163
Apr 16, 2026 22:17	Josu San Martin	CPPclang++18.1.3	Success	5,160
Apr 16, 2026 22:12	Josu San Martin	CPPclang++18.1.3	Success	5,043
Apr 16, 2026 22:10	Josu San Martin	CPPclang++18.1.3	Success	5,100
Apr 16, 2026 22:06	Josu San Martin	CPPclang++18.1.3	Success	5,186
Apr 16, 2026 22:01	Josu San Martin	CPPclang++18.1.3	Success	6,252
Apr 16, 2026 21:49	Josu San Martin	CPPclang++18.1.3	Success	5,669
Apr 16, 2026 21:46	Josu San Martin	CPPclang++18.1.3	Success	5,740
Apr 16, 2026 21:42	Josu San Martin	CPPclang++18.1.3	Success	5,467
Apr 16, 2026 21:39	Josu San Martin	CPPclang++18.1.3	Success	5,399
Apr 16, 2026 21:35	Josu San Martin	CPPclang++18.1.3	Success	5,438
Apr 16, 2026 21:32	Josu San Martin	CPPclang++18.1.3	Success	5,219
Apr 16, 2026 21:28	Josu San Martin	CPPclang++18.1.3	Success	5,157
Apr 16, 2026 19:48	Josu San Martin	CPPclang++18.1.3	Success	6,177
Apr 16, 2026 18:49	olliecrow	CPPclang++18.1.3	Error
Apr 16, 2026 18:47	olliecrow	RUSTrust-1.94.0	Error
Apr 16, 2026 18:45	olliecrow	GOgo1.26.1	Error
Apr 16, 2026 18:38	Josu San Martin	CPPclang++18.1.3	Success	5,311
Apr 16, 2026 15:46	olliecrow	RUSTrust-1.94.0	Success	5,831
Apr 16, 2026 11:13	wn	CPPclang++18.1.3	Error
Apr 16, 2026 03:54	olliecrow	CPPclang++18.1.3	Error
Apr 16, 2026 02:07	olliecrow	CPPg++13.3.0	Success	5,639
Apr 15, 2026 16:53	izotoff	GOgo1.25.4	Success	273,597
Apr 15, 2026 03:28	olliecrow	CSHARP9.0.14	Error
Apr 14, 2026 23:02	olliecrow	CSHARP9.0.14	Error
Apr 14, 2026 16:48	Oleg Skinderev	CPPg++13.3.0	Success	65,024+0.42 RP
Apr 14, 2026 10:43	wn	CPPclang++18.1.3	Success	4,138
Apr 14, 2026 10:39	wn	CPPclang++18.1.3	Success	4,104
Apr 14, 2026 10:39	wn	CPPclang++18.1.3	Success	4,089
Apr 14, 2026 10:37	wn	CPPclang++18.1.3	Success	4,096
Apr 14, 2026 10:37	wn	CPPclang++18.1.3	Success	4,213
Apr 14, 2026 10:19	wn	CPPclang++18.1.3	Success	4,225
Apr 14, 2026 09:06	wn	CPPclang++18.1.3	Success	4,162
Apr 14, 2026 09:05	wn	CPPclang++18.1.3	Error
Apr 14, 2026 08:52	wn	CPPclang++18.1.3	Success	4,155
Apr 14, 2026 08:46	wn	CPPclang++18.1.3	Success	4,104
Apr 14, 2026 08:45	wn	CPPclang++18.1.3	Success	4,075
Apr 14, 2026 08:40	wn	CPPclang++18.1.3	Success	4,051
Apr 14, 2026 08:40	wn	CPPclang++18.1.3	Success	4,048+4.87 RP
Apr 14, 2026 08:39	wn	CPPclang++18.1.3	Success	4,077
Apr 14, 2026 07:26	wn	CPPclang++18.1.3	Success	4,209
Apr 14, 2026 07:22	wn	CPPclang++18.1.3	Success	4,180
Apr 14, 2026 07:21	wn	CPPg++13.3.0	Success	4,474
Apr 14, 2026 06:53	wn	CPPclang++18.1.3	Success	4,175
Apr 14, 2026 06:52	wn	CPPg++13.3.0	Success	4,589
Apr 14, 2026 06:48	wn	CPPg++13.3.0	Success	4,478
Apr 14, 2026 06:45	wn	CPPg++13.3.0	Success	4,439
Apr 14, 2026 06:40	wn	CPPclang++18.1.3	Success	4,199
Apr 14, 2026 06:18	wn	CPPg++13.3.0	Success	4,645
Apr 14, 2026 05:53	wn	CPPclang++18.1.3	Success	4,213
Apr 14, 2026 05:34	wn	CPPclang++18.1.3	Success	4,272
Apr 14, 2026 05:30	wn	CPPclang++18.1.3	Success	4,257
Apr 14, 2026 05:29	wn	CPPclang++18.1.3	Success	4,293
Apr 14, 2026 05:26	wn	CPPclang++18.1.3	Success	4,155
Apr 14, 2026 05:23	wn	CPPclang++18.1.3	Success	4,216
Apr 14, 2026 05:20	wn	CPPclang++18.1.3	Success	4,203
Apr 14, 2026 05:17	wn	CPPclang++18.1.3	Success	4,246
Apr 14, 2026 05:15	wn	CPPclang++18.1.3	Success	4,106
Apr 14, 2026 05:14	wn	CPPclang++18.1.3	Success	4,178
Apr 14, 2026 05:11	wn	CPPclang++18.1.3	Success	4,218
Apr 14, 2026 05:07	wn	CPPclang++18.1.3	Success	4,165
Apr 14, 2026 02:55	wn	CPPclang++18.1.3	Success	4,139
Apr 14, 2026 02:53	wn	CPPclang++18.1.3	Success	4,318
Apr 14, 2026 02:35	wn	CPPclang++18.1.3	Success	4,153
Apr 14, 2026 02:29	wn	CPPclang++18.1.3	Success	4,145
Apr 14, 2026 02:26	wn	CPPclang++18.1.3	Success	4,056+1.22 RP
Apr 14, 2026 02:24	wn	CPPclang++18.1.3	Success	4,093
Apr 13, 2026 20:37	Yuriy Lyfenko	CPPg++13.3.0	Success	4,316
Apr 13, 2026 19:51	Yuriy Lyfenko	CPPg++13.3.0	Success	4,289+4.34 RP
Apr 13, 2026 19:51	Yuriy Lyfenko	CPPg++13.3.0	Success	4,390
Apr 13, 2026 19:40	Yuriy Lyfenko	CPPg++13.3.0	Success	4,379
Apr 13, 2026 19:39	Josu San Martin	CPPclang++18.1.3	Success	5,021
Apr 13, 2026 19:33	Daniel Mastalerz	CPPclang++18.1.3	Success	8,682
Apr 13, 2026 19:26	Yuriy Lyfenko	CPPg++13.3.0	Success	4,298
Apr 13, 2026 19:25	Yuriy Lyfenko	CPPg++13.3.0	Success	4,297+1.08 RP
Apr 13, 2026 19:20	Yuriy Lyfenko	CPPg++13.3.0	Success	4,607
Apr 13, 2026 19:20	Yuriy Lyfenko	CPPclang++18.1.3	Success	5,213
Apr 13, 2026 19:10	Yuriy Lyfenko	CPPg++13.3.0	Success	4,448

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