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
Sep 3, 2026 22:42	Victor Mercklé	CPPg++14.2.0	Success	5,362
Sep 3, 2026 22:39	Victor Mercklé	CPPg++14.2.0	Success	5,477
Sep 3, 2026 22:22	Victor Mercklé	CPPg++14.2.0	Success	6,448
Sep 3, 2026 22:14	Josu San Martin	CPPg++14.2.0	Success	63,732
Sep 3, 2026 22:03	Victor Mercklé	CPPg++14.2.0	Success	10,242
Sep 3, 2026 21:29	boop34	CPPg++14.2.0	Success	12,436
Sep 3, 2026 21:22	boop34	CPPg++14.2.0	Success	11,652
Sep 3, 2026 21:22	Victor Mercklé	CPPg++14.2.0	Success	4,761
Sep 3, 2026 21:16	Victor Mercklé	CPPg++14.2.0	Error
Sep 3, 2026 21:07	boop34	CPPg++14.2.0	Success	12,861
Sep 3, 2026 20:59	Victor Mercklé	CPPg++14.2.0	Success	4,211
Sep 3, 2026 20:48	Victor Mercklé	CPPg++14.2.0	Success	4,524
Sep 3, 2026 20:29	Victor Mercklé	CPPg++14.2.0	Success	3,699
Sep 3, 2026 18:20	Andrew Ashworth	CPPg++14.2.0	Success	39,766+107.29 RP
Sep 3, 2026 17:20	Victor Mercklé	CPPg++14.2.0	Success	5,013
Sep 3, 2026 17:15	Victor Mercklé	CPPg++14.2.0	Error
Sep 3, 2026 17:13	Victor Mercklé	CPPg++14.2.0	Error
Sep 3, 2026 17:11	Victor Mercklé	CPPg++14.2.0	Success	4,833
Sep 3, 2026 17:08	Victor Mercklé	CPPg++14.2.0	Error
Sep 3, 2026 17:04	Victor Mercklé	CPPg++14.2.0	Success	4,821
Sep 3, 2026 16:35	CheckHarry	CPPg++14.2.0	Success	4,594
Sep 3, 2026 16:07	CheckHarry	CPPg++14.2.0	Success	4,583
Sep 3, 2026 15:54	boop34	CPPg++14.2.0	Success	10,463
Sep 3, 2026 15:39	boop34	CPPg++14.2.0	Success	10,525
Sep 3, 2026 15:31	CheckHarry	CPPg++14.2.0	Success	4,269
Sep 3, 2026 14:31	CheckHarry	CPPg++14.2.0	Success	4,340
Sep 3, 2026 14:30	CheckHarry	CPPg++14.2.0	Success	4,456
Sep 3, 2026 14:28	CheckHarry	CPPg++14.2.0	Success	4,372
Sep 3, 2026 14:23	CheckHarry	CPPg++14.2.0	Success	4,271
Sep 3, 2026 14:22	CheckHarry	CPPg++14.2.0	Success	4,299
Sep 3, 2026 12:54	CheckHarry	CPPg++14.2.0	Success	7,174
Sep 3, 2026 12:53	CheckHarry	CPPg++14.2.0	Success	4,286
Sep 3, 2026 12:46	CheckHarry	CPPg++14.2.0	Success	4,248+85.96 RP
Sep 3, 2026 12:33	CheckHarry	CPPg++14.2.0	Success	4,409+158.83 RP
Sep 3, 2026 11:47	boop34	CPPg++14.2.0	Success	37,186
Sep 3, 2026 10:37	boop34	CPPclang++20.1.2	Success	9,180
Sep 3, 2026 09:58	CheckHarry	CPPg++14.2.0	Success	4,741+18.08 RP
Sep 3, 2026 07:19	CheckHarry	CPPg++14.2.0	Success	4,833
Sep 3, 2026 07:19	CheckHarry	CPPg++14.2.0	Success	4,928
Sep 3, 2026 07:18	CheckHarry	CPPg++14.2.0	Success	4,940
Sep 3, 2026 06:28	CheckHarry	CPPg++14.2.0	Success	8,247
Sep 3, 2026 06:25	CheckHarry	CPPg++14.2.0	Success	8,026
Sep 3, 2026 06:25	CheckHarry	CPPg++14.2.0	Success	4,782+32.29 RP
Sep 3, 2026 06:25	CheckHarry	CPPg++14.2.0	Success	4,857+82.99 RP
Sep 3, 2026 06:07	CheckHarry	CPPg++14.2.0	Success	5,132
Sep 3, 2026 05:58	CheckHarry	CPPg++14.2.0	Success	5,061+118.19 RP
Sep 3, 2026 05:30	CheckHarry	CPPg++14.2.0	Success	5,430
Sep 3, 2026 05:30	CheckHarry	CPPg++14.2.0	Success	5,997
Sep 3, 2026 05:28	CheckHarry	CPPg++14.2.0	Success	5,555
Sep 3, 2026 05:28	CheckHarry	CPPg++14.2.0	Success	5,383+139.19 RP
Sep 3, 2026 04:36	CheckHarry	CPPg++14.2.0	Success	8,399
Sep 3, 2026 04:35	CheckHarry	CPPg++14.2.0	Success	8,284
Sep 3, 2026 04:35	CheckHarry	CPPg++14.2.0	Success	8,628
Sep 3, 2026 04:28	CheckHarry	CPPg++14.2.0	Success	9,274
Sep 3, 2026 04:25	CheckHarry	CPPg++14.2.0	Success	9,785
Sep 3, 2026 04:20	CheckHarry	CPPg++14.2.0	Success	12,200
Sep 3, 2026 03:56	CheckHarry	CPPg++10.5.0	Success	6,670
Sep 3, 2026 03:54	CheckHarry	CPPg++10.5.0	Success	5,865
Sep 3, 2026 03:51	CheckHarry	CPPg++10.5.0	Success	6,672
Sep 3, 2026 03:44	CheckHarry	CPPg++14.2.0	Success	5,825
Sep 3, 2026 03:41	CheckHarry	CPPg++14.2.0	Success	5,976
Sep 3, 2026 03:40	CheckHarry	CPPg++14.2.0	Success	6,033
Sep 3, 2026 03:39	CheckHarry	CPPg++14.2.0	Success	8,995
Sep 3, 2026 03:37	CheckHarry	CPPg++14.2.0	Success	9,084
Sep 3, 2026 03:36	CheckHarry	CPPg++14.2.0	Success	9,069
Sep 3, 2026 02:46	CheckHarry	CPPg++14.2.0	Success	6,493
Sep 3, 2026 02:44	CheckHarry	CPPg++14.2.0	Success	6,342
Sep 3, 2026 02:39	CheckHarry	CPPg++10.5.0	Success	6,176
Sep 3, 2026 01:19	CheckHarry	CPPg++14.2.0	Success	6,224
Sep 3, 2026 01:19	CheckHarry	CPPg++14.2.0	Success	6,211
Sep 3, 2026 01:19	CheckHarry	CPPg++14.2.0	Success	7,355
Sep 3, 2026 01:14	CheckHarry	CPPg++14.2.0	Success	5,978
Sep 3, 2026 01:14	CheckHarry	CPPg++14.2.0	Success	5,979
Sep 3, 2026 01:14	CheckHarry	CPPg++14.2.0	Success	5,980
Sep 2, 2026 18:30	CheckHarry	CPPg++14.2.0	Success	6,051
Sep 2, 2026 18:30	CheckHarry	CPPg++14.2.0	Success	6,089
Sep 2, 2026 18:29	CheckHarry	CPPg++14.2.0	Success	5,873
Sep 2, 2026 18:29	CheckHarry	CPPg++14.2.0	Success	5,819+33.02 RP
Sep 2, 2026 18:23	CheckHarry	CPPg++14.2.0	Success	6,135
Sep 2, 2026 18:22	CheckHarry	CPPg++10.5.0	Success	6,417
Sep 2, 2026 18:22	CheckHarry	CPPg++10.5.0	Success	6,049
Sep 2, 2026 18:14	CheckHarry	CPPg++10.5.0	Success	5,933+14.09 RP
Sep 2, 2026 18:09	CheckHarry	CPPg++14.2.0	Success	5,983+6.95 RP
Sep 2, 2026 18:04	CheckHarry	CPPg++14.2.0	Success	6,008+138.66 RP
Sep 2, 2026 17:53	CheckHarry	CPPclang++20.1.2	Success	8,956
Sep 2, 2026 17:44	CheckHarry	CPPg++14.2.0	Success	13,489
Sep 2, 2026 17:41	CheckHarry	CPPg++14.2.0	Success	70,701
Sep 2, 2026 17:34	CheckHarry	CPPg++14.2.0	Success	6,932
Sep 2, 2026 17:28	CheckHarry	CPPg++14.2.0	Success	18,607
Sep 2, 2026 17:08	CheckHarry	CPPg++14.2.0	Success	6,555
Sep 2, 2026 17:05	CheckHarry	CPPg++14.2.0	Success	6,554+4.87 RP
Sep 2, 2026 17:02	CheckHarry	CPPg++14.2.0	Success	6,635
Sep 2, 2026 16:59	CheckHarry	CPPg++14.2.0	Success	6,579
Sep 2, 2026 15:09	CheckHarry	CPPg++10.5.0	Success	6,575+487.32 RP
Sep 2, 2026 14:32	Victor Mercklé	CPPg++14.2.0	Error
Sep 2, 2026 14:20	Victor Mercklé	CPPg++14.2.0	Error
Sep 2, 2026 13:57	Victor Mercklé	CPPg++14.2.0	Error
Sep 2, 2026 13:31	Victor Mercklé	CPPg++14.2.0	Error
Sep 2, 2026 13:12	Victor Mercklé	CPPg++14.2.0	Success	5,670
Sep 2, 2026 12:31	CheckHarry	CPPg++10.5.0	Success	9,675+348.19 RP

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