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
Oct 9, 2025 02:29	CheranMahalingam	CPPg++13.3.0	Success	51,934+18.54 RP
Oct 9, 2025 02:18	CheranMahalingam	CPPg++13.3.0	Success	64,307
Oct 9, 2025 02:15	CheranMahalingam	CPPg++13.3.0	Success	57,651
Oct 9, 2025 02:11	CheranMahalingam	CPPg++13.3.0	Success	57,468+148.72 RP
Oct 9, 2025 02:08	CheranMahalingam	CPPg++13.3.0	Error
Oct 8, 2025 01:31	Marco Barbone	CPPg++13.3.0	Success	35,300+17.84 RP
Oct 6, 2025 19:46	wn	CPPg++13.3.0	Success	77,999
Oct 6, 2025 19:46	wn	CPPg++13.3.0	Success	89,879
Oct 6, 2025 19:45	wn	CPPg++13.3.0	Success	89,901
Oct 6, 2025 19:45	wn	CPPg++13.3.0	Success	78,025
Oct 6, 2025 17:32	wn	CPPg++13.3.0	Success	78,311
Oct 6, 2025 17:32	wn	CPPg++13.3.0	Success	78,114
Oct 6, 2025 17:04	wn	CPPg++13.3.0	Success	78,435
Oct 6, 2025 17:00	wn	CPPg++13.3.0	Success	143,188
Oct 6, 2025 16:48	wn	CPPg++13.3.0	Success	141,245
Oct 6, 2025 16:47	wn	CPPg++13.3.0	Error
Oct 6, 2025 16:46	wn	CPPg++13.3.0	Error
Oct 6, 2025 16:45	wn	CPPg++13.3.0	Error
Oct 6, 2025 16:40	wn	CPPg++13.3.0	Success	186,903
Oct 6, 2025 16:37	wn	CPPg++13.3.0	Success	47,779+27.26 RP
Oct 6, 2025 16:36	wn	CPPg++13.3.0	Success	192,037
Oct 6, 2025 16:29	wn	CPPg++13.3.0	Success	191,919
Oct 6, 2025 16:26	wn	CPPg++13.3.0	Error
Oct 6, 2025 15:07	wn	CPPg++13.3.0	Error
Oct 6, 2025 10:13	Takopi	CPPg++13.3.0	Success	2,066,453+4.84 RP
Oct 5, 2025 15:34	caando	CPPg++13.3.0	Success	5,984+1'671.12 RP
Oct 5, 2025 15:30	rogue *	CPPg++13.3.0	Success	44,575
Oct 5, 2025 15:29	rogue *	CPPg++13.3.0	Success	44,303
Oct 5, 2025 15:20	rogue *	CPPg++13.3.0	Error
Oct 5, 2025 14:53	Kirill Andriianov	ZIG0.13.0	Error
Oct 5, 2025 14:52	Kirill Andriianov	ZIG0.13.0	Error
Oct 5, 2025 14:50	Kirill Andriianov	CPPclang++18.1.3	Success	68,257
Oct 5, 2025 14:48	Kirill Andriianov	CPPclang++18.1.3	Success	66,579
Oct 5, 2025 14:39	Kirill Andriianov	CPPclang++18.1.3	Success	76,384
Oct 5, 2025 14:24	Kirill Andriianov	CPPclang++18.1.3	Success	68,648
Oct 5, 2025 14:21	Kirill Andriianov	CPPclang++18.1.3	Success	66,582
Oct 5, 2025 14:20	Kirill Andriianov	CPPclang++18.1.3	Success	98,953
Oct 5, 2025 14:07	Kirill Andriianov	CPPclang++18.1.3	Success	66,510
Oct 5, 2025 13:54	Kirill Andriianov	CPPclang++18.1.3	Error
Oct 5, 2025 13:53	Kirill Andriianov	CPPclang++18.1.3	Error
Oct 5, 2025 13:29	Kirill Andriianov	CPPclang++18.1.3	Success	59,967
Oct 5, 2025 13:29	Kirill Andriianov	CPPclang++18.1.3	Error
Oct 5, 2025 13:28	Kirill Andriianov	CPPclang++18.1.3	Error
Oct 5, 2025 13:22	Kirill Andriianov	CPPclang++18.1.3	Error
Oct 5, 2025 10:12	Bhavik-Makwana	RUSTrust-1.85.0	Error
Oct 5, 2025 10:08	Bhavik-Makwana	RUSTrust-1.85.0	Error
Oct 5, 2025 10:02	rogue *	CPPg++13.3.0	Error
Oct 5, 2025 09:59	Bhavik-Makwana	RUSTrust-1.85.0	Success	382,767+26.13 RP
Oct 5, 2025 09:53	rogue *	CPPg++13.3.0	Success	58,903
Oct 5, 2025 09:52	rogue *	CPPg++13.3.0	Success	60,258
Oct 5, 2025 09:52	rogue *	CPPg++13.3.0	Success	59,596
Oct 5, 2025 09:40	rogue *	CPPg++13.3.0	Success	59,592
Oct 5, 2025 09:37	rogue *	CPPclang++18.1.3	Success	51,469
Oct 5, 2025 09:30	rogue *	CPPclang++18.1.3	Success	54,693
Oct 5, 2025 09:29	rogue *	CPPg++13.3.0	Success	56,982
Oct 5, 2025 09:20	rogue *	CPPg++13.3.0	Success	45,542
Oct 5, 2025 09:14	rogue *	CPPg++13.3.0	Error
Oct 5, 2025 09:13	rogue *	CPPg++13.3.0	Error
Oct 5, 2025 08:45	rogue *	CPPg++13.3.0	Success	37,943
Oct 5, 2025 08:44	rogue *	CPPg++13.3.0	Error
Oct 5, 2025 08:43	rogue *	CPPg++13.3.0	Error
Oct 5, 2025 08:40	rogue *	CPPg++13.3.0	Success	37,785+9.20 RP
Oct 5, 2025 08:40	rogue *	CPPclang++18.1.3	Success	44,118
Oct 5, 2025 04:50	DOS-ex-machina	CPPg++13.3.0	Error
Oct 5, 2025 04:50	DOS-ex-machina	CPPg++13.3.0	Error
Oct 5, 2025 04:43	DOS-ex-machina	CPPg++13.3.0	Error
Oct 5, 2025 04:41	DOS-ex-machina	CPPg++13.3.0	Error
Oct 5, 2025 04:40	DOS-ex-machina	CPPg++13.3.0	Error
Oct 5, 2025 04:39	DOS-ex-machina	CPPg++13.3.0	Error
Oct 5, 2025 04:28	DOS-ex-machina	CPPg++13.3.0	Error
Oct 1, 2025 20:40	Nguyễn Minh Nhật Noé	CPPg++13.3.0	Success	2,068,255+4.83 RP
Oct 1, 2025 02:46	Marpina Bharani	CPPg++13.3.0	Success	2,069,610+4.83 RP
Oct 1, 2025 02:43	Marpina Bharani	CPPg++13.3.0	Error
Sep 30, 2025 01:35	CheranMahalingam	CPPg++13.3.0	Success	395,373+17.45 RP
Sep 28, 2025 07:55	sheryllynn24	CPPg++13.3.0	Error
Sep 28, 2025 07:55	sheryllynn24	CPPg++13.3.0	Error
Sep 28, 2025 07:54	sheryllynn24	CPPg++13.3.0	Error
Sep 28, 2025 07:50	sheryllynn24	CPPg++13.3.0	Success	6,175
Sep 28, 2025 07:48	Tejas G.	CPPg++13.3.0	Error
Sep 28, 2025 07:36	sheryllynn24	CPPg++13.3.0	Error	+46.13 RP
Sep 28, 2025 07:25	sheryllynn24	CPPg++13.3.0	Success	6,315
Sep 28, 2025 07:24	sheryllynn24	CPPg++13.3.0	Success	6,211+10.81 RP
Sep 28, 2025 07:19	sheryllynn24	CPPg++13.3.0	Success	6,327
Sep 28, 2025 07:17	sheryllynn24	CPPg++13.3.0	Error
Sep 28, 2025 07:13	sheryllynn24	CPPg++13.3.0	Success	6,370
Sep 27, 2025 18:21	sheryllynn24	CPPg++13.3.0	Success	6,325
Sep 27, 2025 18:16	sheryllynn24	CPPg++13.3.0	Success	6,329
Sep 27, 2025 12:44	Sina	CPPg++13.3.0	Success	135,469
Sep 27, 2025 11:50	Sina	CPPg++13.3.0	Error
Sep 27, 2025 09:43	Sina	CPPg++13.3.0	Error
Sep 27, 2025 09:05	Sina	CPPg++13.3.0	Success	122,209+60.00 RP
Sep 27, 2025 07:44	sheryllynn24	CPPg++13.3.0	Success	6,266
Sep 27, 2025 07:43	sheryllynn24	CPPg++13.3.0	Success	6,373
Sep 27, 2025 07:42	sheryllynn24	CPP	Error
Sep 27, 2025 07:40	sheryllynn24	CPPg++13.3.0	Success	6,369
Sep 27, 2025 07:40	sheryllynn24	CPPg++13.3.0	Error
Sep 27, 2025 07:39	sheryllynn24	CPPg++13.3.0	Success	6,371
Sep 27, 2025 07:38	sheryllynn24	CPPg++13.3.0	Success	6,271
Sep 27, 2025 07:34	sheryllynn24	CPPg++13.3.0	Success	6,397
Sep 27, 2025 07:34	sheryllynn24	CPPg++13.3.0	Success	6,367

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