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	1:20.1.2-0ubuntu1~24.04.3	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	3.0.13-0ubuntu3.11	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
Aug 30, 2026 19:42	Josu San Martin	CPPclang++18.1.3	Success	4,640
Aug 30, 2026 19:41	Josu San Martin	CPPclang++18.1.3	Success	4,307+15.00 RP
Aug 30, 2026 19:38	Josu San Martin	CPPclang++20.1.2	Success	4,547
Aug 30, 2026 19:36	Josu San Martin	CPPclang++18.1.3	Success	4,839
Aug 30, 2026 19:34	Josu San Martin	CPPg++10.5.0	Success	4,629
Aug 30, 2026 19:30	Josu San Martin	CPPclang++18.1.3	Success	4,335
Aug 30, 2026 19:23	Josu San Martin	CPPclang++18.1.3	Success	4,706
Aug 30, 2026 19:19	Josu San Martin	CPPclang++18.1.3	Success	4,838
Aug 30, 2026 19:13	Josu San Martin	CPPclang++18.1.3	Success	4,340
Aug 30, 2026 19:10	Josu San Martin	CPPclang++18.1.3	Success	4,335+5.84 RP
Aug 30, 2026 19:08	Josu San Martin	CPPclang++18.1.3	Success	4,349
Aug 30, 2026 19:03	Josu San Martin	CPPclang++18.1.3	Success	5,021
Aug 30, 2026 18:58	Josu San Martin	CPPclang++18.1.3	Success	4,355
Aug 30, 2026 18:55	Josu San Martin	CPPclang++18.1.3	Success	4,497
Aug 30, 2026 18:53	Josu San Martin	CPPclang++18.1.3	Success	4,616
Aug 30, 2026 18:51	Josu San Martin	CPPclang++18.1.3	Success	5,088
Aug 30, 2026 18:47	Anurag Choubey	CPPg++10.5.0	Success	89,188
Aug 30, 2026 18:43	Josu San Martin	CPPclang++18.1.3	Success	4,716
Aug 30, 2026 18:42	Josu San Martin	CPPclang++18.1.3	Success	5,179
Aug 30, 2026 18:41	Josu San Martin	CPPclang++18.1.3	Success	4,631
Aug 30, 2026 18:40	Josu San Martin	CPPclang++18.1.3	Success	9,405
Aug 30, 2026 18:39	Josu San Martin	CPPclang++18.1.3	Success	4,354
Aug 30, 2026 18:36	Josu San Martin	CPPclang++18.1.3	Success	4,505
Aug 30, 2026 18:24	Josu San Martin	CPPclang++18.1.3	Success	4,348
Aug 30, 2026 18:22	Josu San Martin	CPPclang++18.1.3	Success	4,346+38.01 RP
Aug 30, 2026 18:20	Josu San Martin	CPPclang++18.1.3	Success	4,739
Aug 30, 2026 18:17	Josu San Martin	CPPclang++18.1.3	Success	4,419+43.69 RP
Aug 30, 2026 18:15	Josu San Martin	CPPclang++18.1.3	Success	4,509
Aug 30, 2026 18:14	Josu San Martin	CPPclang++18.1.3	Success	4,533
Aug 30, 2026 18:10	Josu San Martin	CPPclang++18.1.3	Success	4,831
Aug 30, 2026 18:03	Josu San Martin	CPPclang++18.1.3	Success	5,873
Aug 30, 2026 18:01	Josu San Martin	CPPclang++18.1.3	Success	4,520
Aug 30, 2026 17:58	Josu San Martin	CPPclang++18.1.3	Success	4,579
Aug 30, 2026 17:15	Anurag Choubey	CPPg++10.5.0	Success	89,015+112.34 RP
Aug 29, 2026 17:48	Josu San Martin	CPPclang++18.1.3	Success	4,508
Aug 29, 2026 17:40	Victor Mercklé	CPPg++14.2.0	Success	3,864
Aug 29, 2026 17:38	Victor Mercklé	CPPg++14.2.0	Success	3,755
Aug 29, 2026 17:36	Victor Mercklé	CPPg++14.2.0	Success	3,680
Aug 29, 2026 17:33	Victor Mercklé	CPPg++14.2.0	Success	4,435
Aug 29, 2026 17:25	Victor Mercklé	CPPg++14.2.0	Error
Aug 29, 2026 17:08	Josu San Martin	CPPclang++20.1.2	Success	4,527
Aug 29, 2026 17:05	Victor Mercklé	CPPg++14.2.0	Error
Aug 29, 2026 17:03	Josu San Martin	CPPclang++18.1.3	Success	4,695
Aug 29, 2026 17:01	Victor Mercklé	CPPg++14.2.0	Error
Aug 29, 2026 16:57	Josu San Martin	CPPclang++18.1.3	Success	4,719
Aug 29, 2026 16:56	Victor Mercklé	CPPg++14.2.0	Success	3,683
Aug 29, 2026 16:50	Josu San Martin	CPPclang++18.1.3	Success	4,735
Aug 29, 2026 16:46	Josu San Martin	CPPclang++18.1.3	Success	4,557
Aug 29, 2026 16:45	Victor Mercklé	CPPg++14.2.0	Error
Aug 29, 2026 16:43	Josu San Martin	CPPg++14.2.0	Success	4,857
Aug 29, 2026 16:36	Victor Mercklé	CPPg++14.2.0	Error
Aug 29, 2026 16:36	Josu San Martin	CPPclang++18.1.3	Success	4,506+19.04 RP
Aug 29, 2026 16:31	Josu San Martin	CPPclang++18.1.3	Success	5,333
Aug 29, 2026 16:28	Victor Mercklé	CPPg++14.2.0	Error
Aug 29, 2026 16:22	Josu San Martin	CPPclang++18.1.3	Success	5,021
Aug 29, 2026 16:19	Victor Mercklé	CPPg++14.2.0	Error
Aug 29, 2026 16:17	Victor Mercklé	CPPg++14.2.0	Error
Aug 29, 2026 16:13	Victor Mercklé	CPPg++14.2.0	Error
Aug 29, 2026 16:04	Victor Mercklé	CPPg++14.2.0	Success	3,858
Aug 29, 2026 16:00	Victor Mercklé	CPPg++14.2.0	Success	3,681
Aug 29, 2026 15:56	Victor Mercklé	CPPg++14.2.0	Error
Aug 29, 2026 15:53	Victor Mercklé	CPPg++14.2.0	Error
Aug 29, 2026 15:48	Victor Mercklé	CPPg++14.2.0	Error
Aug 29, 2026 15:45	Victor Mercklé	CPPg++14.2.0	Success	3,716
Aug 29, 2026 15:42	Victor Mercklé	CPPg++14.2.0	Error
Aug 29, 2026 15:40	Victor Mercklé	CPPg++14.2.0	Success	3,710
Aug 29, 2026 15:37	Victor Mercklé	CPPg++14.2.0	Error
Aug 29, 2026 15:33	Victor Mercklé	CPPg++14.2.0	Success	3,896
Aug 29, 2026 15:25	Victor Mercklé	CPPg++14.2.0	Success	4,485
Aug 29, 2026 15:21	Victor Mercklé	CPPg++14.2.0	Error
Aug 29, 2026 15:16	Victor Mercklé	CPPg++14.2.0	Error
Aug 29, 2026 15:13	Victor Mercklé	CPPg++14.2.0	Error
Aug 29, 2026 14:57	Victor Mercklé	CPPg++14.2.0	Success	4,216
Aug 29, 2026 14:31	Victor Mercklé	CPPg++14.2.0	Success	3,670+8.88 RP
Aug 29, 2026 14:24	Victor Mercklé	CPPg++14.2.0	Success	3,705
Aug 29, 2026 14:15	Victor Mercklé	CPPg++14.2.0	Success	4,446
Aug 29, 2026 14:05	Victor Mercklé	CPPg++14.2.0	Success	4,346
Aug 29, 2026 13:52	Victor Mercklé	CPPg++14.2.0	Success	3,925
Aug 29, 2026 13:43	Victor Mercklé	CPPg++14.2.0	Error
Aug 29, 2026 13:39	Victor Mercklé	CPPg++14.2.0	Error
Aug 29, 2026 13:35	Victor Mercklé	CPPg++14.2.0	Error
Aug 29, 2026 13:30	Victor Mercklé	CPPg++14.2.0	Success	4,226
Aug 29, 2026 13:25	Victor Mercklé	CPPg++14.2.0	Error
Aug 29, 2026 13:19	Victor Mercklé	CPPg++14.2.0	Error
Aug 29, 2026 13:15	Victor Mercklé	CPPg++14.2.0	Error
Aug 29, 2026 12:46	Victor Mercklé	CPPg++14.2.0	Error
Aug 29, 2026 12:44	Victor Mercklé	CPPg++14.2.0	Error
Aug 29, 2026 12:39	Victor Mercklé	CPPg++14.2.0	Error
Aug 29, 2026 12:34	Victor Mercklé	CPPg++14.2.0	Error
Aug 29, 2026 12:16	Victor Mercklé	CPPg++14.2.0	Success	3,969
Aug 29, 2026 12:04	Victor Mercklé	CPPg++14.2.0	Success	3,716
Aug 29, 2026 11:50	Victor Mercklé	CPPg++14.2.0	Success	3,694
Aug 29, 2026 11:41	Victor Mercklé	CPPg++14.2.0	Success	4,433
Aug 29, 2026 11:31	Victor Mercklé	CPPg++14.2.0	Success	4,942
Aug 29, 2026 11:07	Victor Mercklé	CPPg++14.2.0	Error
Aug 29, 2026 10:57	Victor Mercklé	CPPg++14.2.0	Success	4,796
Aug 29, 2026 10:24	Victor Mercklé	CPPg++14.2.0	Error
Aug 29, 2026 10:10	Victor Mercklé	CPPg++14.2.0	Success	5,559
Aug 29, 2026 09:58	Victor Mercklé	CPPg++14.2.0	Success	5,711
Aug 29, 2026 09:21	Victor Mercklé	CPPg++14.2.0	Error

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