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 27, 2026 07:43	Karthik Reddy	CPPg++10.5.0	Success	4,780
Sep 27, 2026 07:37	Karthik Reddy	CPPg++10.5.0	Success	4,737
Sep 27, 2026 07:04	Karthik Reddy	CPPg++10.5.0	Success	5,020
Sep 27, 2026 07:00	Karthik Reddy	CPPg++10.5.0	Success	4,945
Sep 27, 2026 06:54	Karthik Reddy	CPPclang++20.1.2	Success	6,543
Sep 27, 2026 06:12	Karthik Reddy	CPPg++14.2.0	Success	4,832
Sep 27, 2026 06:07	Karthik Reddy	CPPg++14.2.0	Error
Sep 27, 2026 06:06	Karthik Reddy	CPPg++14.2.0	Error
Sep 27, 2026 06:04	Karthik Reddy	CPPg++10.5.0	Error
Sep 27, 2026 06:01	Karthik Reddy	CPPg++10.5.0	Error
Sep 27, 2026 04:15	mk	CPPclang++20.1.2	Success	53,859+66.65 RP
Sep 27, 2026 04:13	mk	CPPclang++20.1.2	Success	84,019+17.06 RP
Sep 27, 2026 03:33	mk	CPPclang++20.1.2	Success	98,076+101.96 RP
Sep 26, 2026 21:54	Karthik Reddy	CPPg++10.5.0	Success	4,629
Sep 26, 2026 21:50	Karthik Reddy	CPPg++10.5.0	Success	4,863
Sep 26, 2026 16:33	Kevin Heavey	RUSTrust-1.95.0	Success	3,210+12.57 RP
Sep 26, 2026 16:29	Kevin Heavey	CSHARP9.0.18	Success	3,207+7.76 RP
Sep 26, 2026 16:27	Kevin Heavey	GOgo1.26.2	Success	3,209+2.91 RP
Sep 26, 2026 16:23	Kevin Heavey	ZIG0.15.1	Success	3,191+27.37 RP
Sep 26, 2026 03:03	Karthik Reddy	CPPg++10.5.0	Success	4,737
Sep 26, 2026 02:37	Karthik Reddy	CPPg++10.5.0	Success	4,597+0.47 RP
Sep 26, 2026 00:24	Karthik Reddy	CPPg++14.2.0	Success	4,906
Sep 26, 2026 00:23	Karthik Reddy	CPPg++10.5.0	Success	4,598+268.64 RP
Sep 25, 2026 21:21	Kevin Heavey	CPPg++14.2.0	Success	3,201+11.68 RP
Sep 25, 2026 18:12	Karthik Reddy	CPPg++10.5.0	Success	5,246+92.65 RP
Sep 25, 2026 06:09	Karthik Reddy	CPPg++10.5.0	Success	7,639
Sep 25, 2026 06:06	Karthik Reddy	CPPg++14.2.0	Success	7,516
Sep 25, 2026 05:26	flavio87	CPPclang++20.1.2	Success	3,599
Sep 25, 2026 04:00	Karthik Reddy	CPPg++10.5.0	Success	5,514+696.25 RP
Sep 25, 2026 03:29	Karthik Reddy	CPPclang++20.1.2	Success	9,111
Sep 25, 2026 03:28	Karthik Reddy	CPPg++10.5.0	Success	9,271
Sep 25, 2026 03:25	Karthik Reddy	CPPclang++20.1.2	Success	8,950+576.08 RP
Sep 24, 2026 22:42	janwww	CPPg++14.2.0	Success	6,452
Sep 24, 2026 21:32	Karthik Reddy	CPPg++10.5.0	Success	20,549
Sep 24, 2026 21:09	Karthik Reddy	CPPg++10.5.0	Success	18,476+143.44 RP
Sep 24, 2026 21:03	Karthik Reddy	CPPg++10.5.0	Success	26,379
Sep 24, 2026 21:02	Karthik Reddy	CPPg++10.5.0	Success	25,138+33.29 RP
Sep 24, 2026 20:57	wn	CPPg++14.2.0	Error
Sep 24, 2026 20:46	wn	CPPg++14.2.0	Error
Sep 24, 2026 20:26	janwww	RUSTrust-1.95.0	Success	62,419
Sep 24, 2026 20:21	wn	CPPg++14.2.0	Error
Sep 24, 2026 20:16	janwww	CPPg++10.5.0	Success	6,436+241.42 RP
Sep 24, 2026 20:01	wn	CPPg++14.2.0	Error
Sep 24, 2026 19:53	Karthik Reddy	CPPclang++20.1.2	Success	27,749
Sep 24, 2026 19:51	Karthik Reddy	CPPg++10.5.0	Success	27,434+60.53 RP
Sep 24, 2026 19:38	wn	CPPg++14.2.0	Error
Sep 24, 2026 19:23	wn	CPPg++14.2.0	Error
Sep 24, 2026 19:13	Karthik Reddy	CPPg++14.2.0	Success	34,856
Sep 24, 2026 19:12	Karthik Reddy	CPPclang++20.1.2	Success	32,897+9.55 RP
Sep 24, 2026 18:53	wn	CPPg++14.2.0	Error
Sep 24, 2026 18:47	Karthik Reddy	CPPg++10.5.0	Success	33,964+147.84 RP
Sep 24, 2026 18:31	Karthik Reddy	CPPg++10.5.0	Success	68,218+14.64 RP
Sep 24, 2026 18:29	wn	CPPg++14.2.0	Error
Sep 24, 2026 18:12	wn	CPPg++14.2.0	Error
Sep 24, 2026 18:03	wn	CPPg++14.2.0	Error
Sep 24, 2026 17:50	Karthik Reddy	CPPg++14.2.0	Success	75,785+19.59 RP
Sep 24, 2026 17:34	wn	CPPg++14.2.0	Error
Sep 24, 2026 17:13	Karthik Reddy	CPPg++10.5.0	Success	88,997+112.36 RP
Sep 24, 2026 17:11	wn	CPPg++14.2.0	Error
Sep 24, 2026 17:09	wn	CPPg++14.2.0	Error
Sep 24, 2026 16:56	wn	CPPg++14.2.0	Error
Sep 24, 2026 16:50	flavio87	CPPclang++20.1.2	Success	3,580+49.81 RP
Sep 24, 2026 16:35	wn	CPPg++14.2.0	Error
Sep 24, 2026 16:33	wn	CPPg++14.2.0	Error
Sep 24, 2026 16:17	wn	CPPg++14.2.0	Error
Sep 24, 2026 15:58	wn	CPPg++14.2.0	Error
Sep 24, 2026 15:28	wn	CPPg++14.2.0	Error
Sep 24, 2026 15:17	wn	CPPg++14.2.0	Error
Sep 24, 2026 14:44	wn	CPPg++14.2.0	Error
Sep 24, 2026 14:31	wn	CPPg++14.2.0	Success	3,491
Sep 24, 2026 14:15	wn	CPPg++14.2.0	Success	3,465
Sep 24, 2026 14:05	wn	CPPg++14.2.0	Error
Sep 24, 2026 13:50	wn	CPPg++14.2.0	Error
Sep 24, 2026 13:46	wn	CPPg++14.2.0	Error
Sep 24, 2026 13:42	wn	CPPg++14.2.0	Error
Sep 24, 2026 13:31	wn	CPPg++14.2.0	Success	3,418
Sep 24, 2026 13:28	wn	CPPg++14.2.0	Error
Sep 24, 2026 13:25	wn	CPPg++14.2.0	Error
Sep 24, 2026 13:23	wn	CPPg++14.2.0	Success	4,170
Sep 24, 2026 13:17	wn	CPPg++14.2.0	Success	5,322
Sep 24, 2026 12:53	wn	CPPg++14.2.0	Error
Sep 24, 2026 12:44	wn	CPPg++14.2.0	Success	3,490
Sep 24, 2026 12:43	wn	CPPg++14.2.0	Error
Sep 24, 2026 12:38	wn	CPPg++14.2.0	Error
Sep 24, 2026 12:31	wn	CPPg++14.2.0	Error
Sep 24, 2026 12:26	wn	CPPg++14.2.0	Success	3,475
Sep 24, 2026 12:24	wn	CPPg++14.2.0	Success	3,472
Sep 24, 2026 12:22	wn	CPPg++14.2.0	Error
Sep 24, 2026 12:14	wn	CPPg++14.2.0	Success	3,470
Sep 24, 2026 12:08	wn	CPPg++14.2.0	Error
Sep 24, 2026 12:01	wn	CPPg++14.2.0	Success	3,347
Sep 24, 2026 11:56	wn	CPPg++14.2.0	Success	3,471
Sep 24, 2026 11:48	wn	CPPg++14.2.0	Error
Sep 24, 2026 11:44	wn	CPPg++14.2.0	Error
Sep 24, 2026 11:39	wn	CPPg++14.2.0	Error
Sep 24, 2026 11:32	wn	CPPg++14.2.0	Error
Sep 24, 2026 11:13	wn	CPPg++14.2.0	Error
Sep 24, 2026 11:09	wn	CPPg++14.2.0	Error
Sep 24, 2026 11:00	wn	CPPg++14.2.0	Success	3,436
Sep 24, 2026 10:55	wn	CPPg++14.2.0	Success	3,441

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