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
Aug 25, 2025 23:23	Ben	CPPg++13.3.0	Success	58,804
Aug 25, 2025 23:20	Ben	CPPg++13.3.0	Success	72,158
Aug 25, 2025 23:10	Ben	CPPg++13.3.0	Success	69,790
Aug 25, 2025 23:03	Ben	CPPg++13.3.0	Error
Aug 25, 2025 23:01	Ben	CPPg++13.3.0	Error
Aug 25, 2025 23:00	Ben	CPPg++13.3.0	Error
Aug 25, 2025 21:43	Adam Folwarczny	CPPclang++18.1.3	Success	12,534
Aug 25, 2025 21:42	Adam Folwarczny	CPPclang++18.1.3	Success	12,534+0.95 RP
Aug 25, 2025 21:36	Adam Folwarczny	CPPclang++18.1.3	Success	12,581
Aug 25, 2025 21:36	Adam Folwarczny	CPPclang++18.1.3	Success	12,557
Aug 25, 2025 21:33	Adam Folwarczny	CPPclang++18.1.3	Success	12,553
Aug 25, 2025 21:33	Adam Folwarczny	CPPg++13.3.0	Success	15,075
Aug 25, 2025 21:32	Adam Folwarczny	CPPg++13.3.0	Success	15,081
Aug 25, 2025 21:31	Adam Folwarczny	CPPclang++18.1.3	Success	12,549+0.13 RP
Aug 25, 2025 21:18	Adam Folwarczny	CPPclang++18.1.3	Success	12,557
Aug 25, 2025 21:00	Adam Folwarczny	CPPclang++18.1.3	Error
Aug 25, 2025 20:57	Adam Folwarczny	CPPclang++18.1.3	Error
Aug 25, 2025 20:48	Adam Folwarczny	CPPclang++18.1.3	Error
Aug 25, 2025 20:34	Adam Folwarczny	CPPclang++18.1.3	Success	12,551+0.19 RP
Aug 25, 2025 20:25	Adam Folwarczny	CPPclang++18.1.3	Success	12,567
Aug 25, 2025 20:17	Adam Folwarczny	CPPclang++18.1.3	Success	12,554+0.63 RP
Aug 25, 2025 20:07	Adam Folwarczny	CPPclang++18.1.3	Success	12,576
Aug 25, 2025 20:06	Adam Folwarczny	CPPclang++18.1.3	Success	12,564
Aug 25, 2025 20:03	Adam Folwarczny	CPPclang++18.1.3	Error
Aug 25, 2025 19:59	Adam Folwarczny	CPPclang++18.1.3	Error
Aug 25, 2025 19:59	Adam Folwarczny	CPPclang++18.1.3	Error
Aug 25, 2025 19:57	Adam Folwarczny	CPPclang++18.1.3	Success	12,564+1.77 RP
Aug 25, 2025 19:50	Adam Folwarczny	CPPclang++18.1.3	Success	13,160
Aug 25, 2025 19:31	Adam Folwarczny	CPPclang++18.1.3	Success	12,592+128.91 RP
Aug 25, 2025 18:52	Adam Folwarczny	CPPg++13.3.0	Success	15,032+79.66 RP
Aug 25, 2025 18:39	Adam Folwarczny	CPPg++13.3.0	Error
Aug 25, 2025 18:04	Adam Folwarczny	CPPg++13.3.0	Error
Aug 25, 2025 18:03	Vladislav	CPPclang++18.1.3	Success	93,612
Aug 25, 2025 18:01	Adam Folwarczny	CPPg++13.3.0	Error
Aug 25, 2025 17:54	Vladislav	CPPclang++18.1.3	Success	64,186
Aug 25, 2025 17:51	Vladislav	CPPg++13.3.0	Success	63,926
Aug 25, 2025 17:51	Vladislav	CPPg++13.3.0	Success	72,387
Aug 25, 2025 17:46	Vladislav	CPPg++13.3.0	Success	63,165
Aug 25, 2025 17:45	Vladislav	CPPg++13.3.0	Success	72,147
Aug 25, 2025 17:43	Vladislav	CPPg++13.3.0	Success	72,713
Aug 25, 2025 17:43	Vladislav	CPPg++13.3.0	Success	72,615
Aug 25, 2025 17:41	Vladislav	CPPg++13.3.0	Success	72,835
Aug 25, 2025 17:40	Vladislav	CPPg++13.3.0	Error
Aug 25, 2025 17:39	Vladislav	CPPg++13.3.0	Success	73,656
Aug 25, 2025 17:37	Vladislav	CPPg++13.3.0	Error
Aug 25, 2025 17:35	Vladislav	CPPg++13.3.0	Error
Aug 25, 2025 15:48	S	CPPg++13.3.0	Success	517,711
Aug 25, 2025 15:46	S	CPPg++13.3.0	Success	520,683
Aug 25, 2025 15:45	S	CPPg++13.3.0	Success	522,226
Aug 25, 2025 15:43	S	CPPg++13.3.0	Success	528,440
Aug 25, 2025 14:46	S	CPPg++13.3.0	Success	459,430
Aug 25, 2025 14:36	Vladislav	CPPg++13.3.0	Success	60,077+13.26 RP
Aug 25, 2025 14:33	S	CPPg++13.3.0	Success	394,937+20.48 RP
Aug 25, 2025 14:31	Vladislav	CPPg++13.3.0	Success	65,786
Aug 25, 2025 14:26	Vladislav	CPPg++13.3.0	Success	65,276+104.24 RP
Aug 25, 2025 14:26	S	CPPg++13.3.0	Success	2,066,750
Aug 25, 2025 14:24	S	CPPg++13.3.0	Success	2,066,891
Aug 25, 2025 14:24	Vladislav	CPPg++13.3.0	Error
Aug 25, 2025 14:22	S	CPPg++13.3.0	Success	2,068,668
Aug 25, 2025 14:19	S	CPPg++13.3.0	Success	2,066,157
Aug 25, 2025 14:14	S	CPPg++13.3.0	Error
Aug 25, 2025 14:09	Vladislav	CPPg++13.3.0	Error
Aug 25, 2025 12:31	Vladislav	CPPg++13.3.0	Success	204,262+44.12 RP
Aug 25, 2025 12:26	Vladislav	CPPg++13.3.0	Error
Aug 25, 2025 12:25	Vladislav	CPPg++13.3.0	Error
Aug 25, 2025 11:34	Vladislav	CPPg++13.3.0	Error
Aug 25, 2025 11:25	Vladislav	CPPg++13.3.0	Error
Aug 25, 2025 11:24	Vladislav	CPPg++13.3.0	Error
Aug 25, 2025 11:22	Vladislav	CPPg++13.3.0	Error
Aug 25, 2025 11:11	Vladislav	CPPg++13.3.0	Success	2,068,352+4.83 RP
Aug 25, 2025 07:41	Ruoyu Qiu	CPPclang++18.1.3	Success	54,718+0.40 RP
Aug 24, 2025 22:07	Adam Folwarczny	CPPg++13.3.0	Error
Aug 24, 2025 21:28	Adam Folwarczny	CPPg++13.3.0	Error
Aug 24, 2025 17:36	Prajeeths18	CPPg++13.3.0	Success	1,988,378+5.03 RP
Aug 24, 2025 17:08	Adam Folwarczny	CPPclang++18.1.3	Success	19,121
Aug 24, 2025 17:06	Adam Folwarczny	CPPclang++18.1.3	Success	19,215
Aug 24, 2025 16:36	Adam Folwarczny	CPPg++13.3.0	Success	29,689
Aug 24, 2025 16:33	Adam Folwarczny	CPPclang++18.1.3	Success	19,040
Aug 24, 2025 16:17	Adam Folwarczny	CPPclang++18.1.3	Success	22,468
Aug 24, 2025 12:58	Adam Folwarczny	CPPclang++18.1.3	Error
Aug 24, 2025 12:46	Adam Folwarczny	CPPclang++18.1.3	Error
Aug 24, 2025 12:04	Adam Folwarczny	CPPclang++18.1.3	Error
Aug 24, 2025 09:41	AnSa	CPPclang++18.1.3	Error
Aug 24, 2025 09:40	AnSa	CPPg++13.3.0	Success	64,706
Aug 23, 2025 09:05	Adam Folwarczny	CPPclang++18.1.3	Success	17,653
Aug 22, 2025 22:21	Ashish Ahuja	CPPg++13.3.0	Success	11,525
Aug 22, 2025 22:18	Ashish Ahuja	CPPg++13.3.0	Success	11,413
Aug 22, 2025 22:17	Ashish Ahuja	CPPg++13.3.0	Success	11,417
Aug 22, 2025 22:16	Gjorgji Kjosev	RUSTrust-1.89.0	Success	58,568+47.87 RP
Aug 22, 2025 22:15	Ashish Ahuja	CPPg++13.3.0	Success	11,287
Aug 22, 2025 22:13	Gjorgji Kjosev	RUSTrust-1.89.0	Error
Aug 22, 2025 22:07	Gjorgji Kjosev	RUSTrust-1.89.0	Success	99,685
Aug 22, 2025 21:36	Adam Folwarczny	CPPclang++18.1.3	Success	17,077+0.07 RP
Aug 22, 2025 21:36	Adam Folwarczny	CPPclang++18.1.3	Success	17,079+0.72 RP
Aug 22, 2025 21:28	Ashish Ahuja	CPPg++13.3.0	Success	11,950
Aug 22, 2025 21:27	Ashish Ahuja	CPPg++13.3.0	Success	12,203
Aug 22, 2025 21:23	Gjorgji Kjosev	RUSTrust-1.89.0	Success	163,785
Aug 22, 2025 21:20	Ashish Ahuja	CPPg++13.3.0	Success	12,434
Aug 22, 2025 21:18	Adam Folwarczny	CPPg++13.3.0	Success	19,806
Aug 22, 2025 21:15	Adam Folwarczny	CPPclang++18.1.3	Success	17,100+1.74 RP

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