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
Feb 16, 2026 20:48	wn	CPPclang++18.1.3	Success	8,641
Feb 16, 2026 20:47	wn	CPPclang++18.1.3	Success	8,801
Feb 16, 2026 19:44	wn	CPPclang++18.1.3	Success	8,445
Feb 16, 2026 19:42	wn	CPPclang++18.1.3	Success	8,587
Feb 16, 2026 19:41	wn	CPPclang++18.1.3	Error
Feb 16, 2026 19:34	wn	CPPclang++18.1.3	Error
Feb 16, 2026 19:24	wn	CPPclang++18.1.3	Success	8,494
Feb 16, 2026 19:19	wn	CPPclang++18.1.3	Error
Feb 16, 2026 19:18	wn	CPPg++13.3.0	Success	10,312
Feb 16, 2026 19:17	wn	CPPclang++18.1.3	Success	8,628
Feb 16, 2026 19:17	wn	CPPclang++18.1.3	Success	8,647
Feb 16, 2026 19:12	wn	CPPclang++18.1.3	Success	8,593
Feb 16, 2026 19:11	wn	CPPclang++18.1.3	Success	8,783
Feb 16, 2026 19:11	wn	CPPclang++18.1.3	Success	8,416
Feb 16, 2026 18:50	wn	CPPclang++18.1.3	Success	8,527
Feb 16, 2026 18:50	wn	CPPclang++18.1.3	Success	8,566
Feb 16, 2026 18:49	wn	CPPclang++18.1.3	Success	8,592
Feb 16, 2026 18:49	wn	CPPclang++18.1.3	Success	8,352
Feb 16, 2026 18:47	wn	CPPclang++18.1.3	Success	8,740
Feb 16, 2026 18:47	wn	CPPclang++18.1.3	Success	8,521
Feb 16, 2026 18:47	wn	CPPclang++18.1.3	Success	8,434
Feb 16, 2026 18:45	wn	CPPclang++18.1.3	Success	8,406
Feb 16, 2026 18:44	wn	CPPclang++18.1.3	Success	8,593
Feb 16, 2026 18:43	wn	CPPclang++18.1.3	Success	8,421
Feb 16, 2026 17:48	wn	CPPclang++18.1.3	Success	8,373
Feb 16, 2026 17:47	Daniel Mastalerz	CPPclang++18.1.3	Success	7,470
Feb 16, 2026 17:47	wn	CPPclang++18.1.3	Success	8,552
Feb 16, 2026 17:46	Daniel Mastalerz	CPPclang++18.1.3	Success	7,622
Feb 16, 2026 17:46	wn	CPPclang++18.1.3	Success	8,478
Feb 16, 2026 17:42	Daniel Mastalerz	CPPclang++18.1.3	Success	7,843
Feb 16, 2026 17:41	wn	CPPclang++18.1.3	Success	8,659
Feb 16, 2026 17:40	Daniel Mastalerz	CPPclang++18.1.3	Success	7,902
Feb 16, 2026 17:35	Daniel Mastalerz	CPPclang++18.1.3	Success	7,206
Feb 16, 2026 10:19	tch1001	CPPg++13.3.0	Success	71,597
Feb 16, 2026 10:17	tch1001	CPPg++13.3.0	Success	71,888
Feb 16, 2026 10:10	tch1001	CPPg++13.3.0	Success	58,674+8.41 RP
Feb 16, 2026 10:08	tch1001	CPPg++13.3.0	Success	61,718+5.26 RP
Feb 16, 2026 10:07	tch1001	CPPg++13.3.0	Success	63,789+2.41 RP
Feb 16, 2026 10:04	tch1001	CPPg++13.3.0	Success	64,787+11.52 RP
Feb 16, 2026 09:58	tch1001	CPPg++13.3.0	Success	91,204
Feb 16, 2026 09:56	tch1001	CPPg++13.3.0	Success	81,196
Feb 16, 2026 09:54	tch1001	CPPg++13.3.0	Success	70,011+0.35 RP
Feb 16, 2026 09:51	tch1001	CPPg++13.3.0	Success	70,182+0.03 RP
Feb 16, 2026 09:50	tch1001	CPPg++13.3.0	Success	70,196+2.07 RP
Feb 16, 2026 09:48	tch1001	CPPg++13.3.0	Success	73,830
Feb 16, 2026 09:37	tch1001	CPPg++13.3.0	Success	73,826
Feb 16, 2026 09:32	tch1001	CPPg++13.3.0	Success	71,233+134.91 RP
Feb 16, 2026 09:27	tch1001	CPPg++13.3.0	Error
Feb 16, 2026 09:25	tch1001	CPPg++13.3.0	Error
Feb 16, 2026 09:16	wn	CPPclang++18.1.3	Success	9,010
Feb 16, 2026 09:11	wn	CPPclang++18.1.3	Error
Feb 16, 2026 09:04	wn	CPPclang++18.1.3	Error
Feb 16, 2026 09:03	wn	CPPclang++18.1.3	Success	8,345
Feb 16, 2026 08:57	wn	CPPclang++18.1.3	Success	8,470
Feb 16, 2026 08:56	wn	CPPclang++18.1.3	Error
Feb 16, 2026 08:56	wn	CPPclang++18.1.3	Error
Feb 16, 2026 08:54	wn	CPPclang++18.1.3	Error
Feb 16, 2026 08:53	wn	CPPclang++18.1.3	Error
Feb 16, 2026 08:52	wn	CPPclang++18.1.3	Error
Feb 15, 2026 23:28	wn	CPPclang++18.1.3	Success	8,377
Feb 15, 2026 23:26	wn	CPPclang++18.1.3	Success	8,367
Feb 15, 2026 23:23	wn	CPPclang++18.1.3	Error
Feb 15, 2026 23:22	wn	CPPclang++18.1.3	Success	8,270+10.58 RP
Feb 15, 2026 23:20	wn	CPPclang++18.1.3	Success	8,444
Feb 15, 2026 23:20	wn	CPPclang++18.1.3	Success	8,647
Feb 15, 2026 23:19	wn	CPPclang++18.1.3	Success	8,343+9.27 RP
Feb 15, 2026 23:19	wn	CPPclang++18.1.3	Success	8,408+0.14 RP
Feb 15, 2026 23:18	wn	CPPclang++18.1.3	Success	8,464
Feb 15, 2026 23:17	wn	CPPclang++18.1.3	Success	8,456
Feb 15, 2026 23:16	wn	CPPclang++18.1.3	Success	8,455
Feb 15, 2026 23:16	wn	CPPclang++18.1.3	Success	9,850
Feb 15, 2026 23:15	wn	CPPclang++18.1.3	Success	8,705
Feb 15, 2026 23:15	wn	CPPclang++18.1.3	Success	8,409+7.87 RP
Feb 15, 2026 23:13	wn	CPPclang++18.1.3	Success	8,465+93.31 RP
Feb 15, 2026 23:12	wn	CPPg++13.3.0	Success	9,608
Feb 15, 2026 23:07	wn	CPPg++13.3.0	Success	9,588
Feb 15, 2026 23:05	wn	CPPg++13.3.0	Success	9,249
Feb 15, 2026 23:04	wn	CPPg++13.3.0	Success	9,233
Feb 15, 2026 23:04	wn	CPPg++13.3.0	Success	9,191+18.04 RP
Feb 15, 2026 23:02	wn	CPPg++13.3.0	Success	9,346+26.03 RP
Feb 15, 2026 23:00	wn	CPPg++13.3.0	Error
Feb 15, 2026 22:57	wn	CPPg++13.3.0	Error
Feb 15, 2026 22:54	wn	CPPg++13.3.0	Error
Feb 15, 2026 22:53	wn	CPPg++13.3.0	Error
Feb 15, 2026 22:52	wn	CPPg++13.3.0	Error
Feb 15, 2026 22:48	wn	CPPg++13.3.0	Error
Feb 15, 2026 22:46	wn	CPPg++13.3.0	Error
Feb 15, 2026 22:45	wn	CPPg++13.3.0	Error
Feb 15, 2026 22:43	wn	CPPg++13.3.0	Error
Feb 15, 2026 22:43	wn	CPPg++13.3.0	Error
Feb 15, 2026 22:36	wn	CPPg++13.3.0	Success	9,698
Feb 15, 2026 22:35	wn	CPPg++13.3.0	Success	9,799
Feb 15, 2026 22:34	wn	CPPg++13.3.0	Success	9,779
Feb 15, 2026 22:33	wn	CPPg++13.3.0	Success	10,899
Feb 15, 2026 22:33	wn	CPPg++13.3.0	Success	9,690
Feb 15, 2026 22:32	wn	CPPg++13.3.0	Success	9,740
Feb 15, 2026 22:31	wn	CPPg++13.3.0	Success	9,623
Feb 15, 2026 22:31	wn	CPPg++13.3.0	Success	9,667
Feb 15, 2026 22:30	wn	CPPg++13.3.0	Success	10,979
Feb 15, 2026 22:30	wn	CPPg++13.3.0	Success	11,033

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