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
May 10, 2026 09:09	Josu San Martin	CPPclang++18.1.3	Error
May 10, 2026 09:06	Josu San Martin	CPPclang++18.1.3	Success	4,157
May 10, 2026 08:56	Josu San Martin	CPPclang++18.1.3	Error
May 10, 2026 08:55	Josu San Martin	CPPclang++18.1.3	Success	4,101
May 10, 2026 08:51	Josu San Martin	CPPclang++18.1.3	Error
May 10, 2026 08:49	Josu San Martin	CPPclang++18.1.3	Error
May 10, 2026 08:46	Josu San Martin	CPPclang++18.1.3	Success	4,107
May 10, 2026 08:45	Josu San Martin	CPPclang++18.1.3	Error
May 10, 2026 08:43	Josu San Martin	CPPclang++18.1.3	Error
May 10, 2026 08:41	Josu San Martin	CPPclang++18.1.3	Success	4,087
May 10, 2026 08:39	Josu San Martin	CPPclang++18.1.3	Error
May 10, 2026 08:34	Josu San Martin	CPPclang++18.1.3	Error
May 10, 2026 08:33	Josu San Martin	CPPclang++18.1.3	Error
May 10, 2026 08:32	Josu San Martin	CPPclang++18.1.3	Error
May 10, 2026 08:31	Josu San Martin	CPPclang++18.1.3	Error
May 10, 2026 08:30	Josu San Martin	CPPclang++18.1.3	Success	4,091
May 10, 2026 08:29	Josu San Martin	CPPclang++18.1.3	Error
May 10, 2026 08:28	Josu San Martin	CPPclang++18.1.3	Success	4,080+17.30 RP
May 10, 2026 08:15	Josu San Martin	CPPclang++18.1.3	Error
May 10, 2026 08:14	Josu San Martin	CPPclang++18.1.3	Success	4,160
May 10, 2026 08:13	Josu San Martin	CPPclang++18.1.3	Error
May 10, 2026 08:12	Josu San Martin	CPPclang++18.1.3	Success	4,116
May 10, 2026 08:11	Josu San Martin	CPPclang++18.1.3	Success	4,125
May 10, 2026 08:10	Josu San Martin	CPPclang++18.1.3	Error
May 10, 2026 08:06	Josu San Martin	CPPclang++18.1.3	Error
May 10, 2026 07:57	Josu San Martin	CPPclang++18.1.3	Success	4,162
May 10, 2026 07:48	Josu San Martin	CPPclang++18.1.3	Error
May 10, 2026 07:47	Josu San Martin	CPPclang++18.1.3	Error
May 10, 2026 07:46	Josu San Martin	CPPclang++18.1.3	Error
May 10, 2026 07:44	Josu San Martin	CPPclang++18.1.3	Success	4,231
May 10, 2026 07:40	Josu San Martin	CPPclang++18.1.3	Error
May 10, 2026 07:31	Josu San Martin	CPPclang++18.1.3	Error
May 10, 2026 07:27	Josu San Martin	CPPclang++18.1.3	Error
May 10, 2026 07:22	Josu San Martin	CPPclang++18.1.3	Error
May 10, 2026 07:03	Josu San Martin	CPPclang++18.1.3	Error
May 10, 2026 07:00	Josu San Martin	CPPclang++18.1.3	Success	4,119
May 10, 2026 06:59	Josu San Martin	CPPclang++18.1.3	Error
May 10, 2026 06:57	Josu San Martin	CPPclang++18.1.3	Error
May 10, 2026 06:51	Josu San Martin	CPPclang++18.1.3	Success	4,164
May 10, 2026 06:47	Josu San Martin	CPPclang++18.1.3	Error
May 10, 2026 06:40	Josu San Martin	CPPclang++20.1.2	Success	4,162
May 10, 2026 06:39	Josu San Martin	CPPclang++18.1.3	Success	4,166
May 10, 2026 06:29	Josu San Martin	CPPclang++18.1.3	Error
May 10, 2026 06:28	Josu San Martin	CPPclang++18.1.3	Error
May 10, 2026 06:27	Josu San Martin	CPPclang++18.1.3	Success	4,124
May 10, 2026 06:26	Josu San Martin	CPPclang++18.1.3	Success	4,109
May 10, 2026 06:24	Josu San Martin	CPPclang++18.1.3	Error
May 10, 2026 06:23	Josu San Martin	CPPclang++18.1.3	Error
May 10, 2026 06:21	Josu San Martin	CPPclang++18.1.3	Error
May 10, 2026 06:20	Josu San Martin	CPPclang++18.1.3	Error
May 10, 2026 06:19	Josu San Martin	CPPclang++18.1.3	Success	4,570
May 10, 2026 06:18	Josu San Martin	CPPclang++18.1.3	Error
May 10, 2026 06:17	Josu San Martin	CPPclang++18.1.3	Error
May 10, 2026 06:09	Josu San Martin	CPPclang++18.1.3	Error
May 10, 2026 06:07	Josu San Martin	CPPclang++18.1.3	Error
May 10, 2026 05:56	Josu San Martin	CPPg++13.3.0	Error
May 10, 2026 05:55	Josu San Martin	CPPclang++18.1.3	Success	4,268
May 10, 2026 05:53	Josu San Martin	CPPclang++18.1.3	Success	4,122
May 10, 2026 05:44	Josu San Martin	CPPclang++18.1.3	Error
May 10, 2026 05:41	Josu San Martin	CPPclang++18.1.3	Success	4,445
May 10, 2026 05:30	Josu San Martin	CPPclang++18.1.3	Error
May 10, 2026 05:20	Josu San Martin	CPPclang++18.1.3	Error
May 10, 2026 05:19	Josu San Martin	CPPclang++18.1.3	Success	4,138
May 10, 2026 05:18	Josu San Martin	CPPclang++18.1.3	Success	4,122
May 10, 2026 05:17	Josu San Martin	CPPclang++18.1.3	Error
May 10, 2026 05:15	Josu San Martin	CPPclang++18.1.3	Error
May 10, 2026 05:14	Josu San Martin	CPPclang++18.1.3	Error
May 10, 2026 05:13	Josu San Martin	CPPclang++18.1.3	Error
May 10, 2026 05:10	Josu San Martin	CPPclang++18.1.3	Error
May 10, 2026 05:09	Josu San Martin	CPPclang++18.1.3	Error
May 10, 2026 05:08	Josu San Martin	CPPclang++18.1.3	Success	4,109+9.44 RP
May 10, 2026 05:07	Josu San Martin	CPPclang++19.1.7	Error
May 10, 2026 05:05	Josu San Martin	CPPclang++18.1.3	Success	4,125+14.60 RP
May 10, 2026 05:03	Josu San Martin	CPPclang++20.1.2	Error
May 10, 2026 05:01	Josu San Martin	CPPclang++20.1.2	Success	4,150+57.25 RP
May 10, 2026 05:00	Josu San Martin	CPPclang++20.1.2	Success	4,262
May 10, 2026 04:59	Josu San Martin	CPPclang++20.1.2	Success	4,251+6.62 RP
May 10, 2026 04:57	Josu San Martin	CPPclang++20.1.2	Error
May 10, 2026 04:56	Josu San Martin	CPPclang++20.1.2	Success	4,296
May 10, 2026 04:48	Josu San Martin	CPPclang++20.1.2	Success	4,363
May 10, 2026 04:46	Josu San Martin	CPPclang++20.1.2	Success	4,478
May 10, 2026 04:44	Josu San Martin	CPPclang++20.1.2	Success	4,293
May 10, 2026 04:33	Josu San Martin	CPPclang++20.1.2	Error
May 10, 2026 04:28	Josu San Martin	CPPclang++20.1.2	Success	4,297
May 10, 2026 04:25	Josu San Martin	CPPclang++20.1.2	Success	4,263+52.19 RP
May 10, 2026 04:24	Josu San Martin	CPPclang++20.1.2	Success	4,714
May 10, 2026 04:23	Josu San Martin	CPPclang++20.1.2	Success	4,431
May 10, 2026 04:21	Josu San Martin	CPPclang++20.1.2	Success	4,457
May 10, 2026 04:17	Josu San Martin	CPPclang++20.1.2	Success	4,480
May 10, 2026 04:14	Josu San Martin	CPPclang++20.1.2	Success	4,368
May 10, 2026 04:13	Josu San Martin	CPPclang++20.1.2	Success	4,371
May 10, 2026 04:10	Josu San Martin	CPPclang++20.1.2	Success	4,381
May 10, 2026 04:04	Josu San Martin	CPPclang++20.1.2	Success	4,374
May 10, 2026 04:02	Josu San Martin	CPPclang++20.1.2	Success	4,377
May 10, 2026 04:01	Josu San Martin	CPPg++13.3.0	Success	4,843
May 10, 2026 04:00	Josu San Martin	CPPclang++19.1.1	Success	4,396
May 10, 2026 03:59	Josu San Martin	CPPclang++20.1.2	Success	4,360+8.91 RP
May 10, 2026 03:57	Josu San Martin	CPPclang++18.1.3	Success	4,398
May 10, 2026 03:56	Josu San Martin	CPPclang++18.1.3	Success	4,426
May 10, 2026 03:54	Josu San Martin	CPPclang++18.1.3	Success	4,437

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