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
Oct 11, 2025 04:30	Marco Barbone	CPPg++13.3.0	Success	33,502
Oct 11, 2025 04:30	Marco Barbone	CPPclang++18.1.3	Success	29,886
Oct 11, 2025 04:21	Marco Barbone	CPPclang++18.1.3	Success	30,045
Oct 11, 2025 04:20	Marco Barbone	CPPg++13.3.0	Success	31,533
Oct 11, 2025 04:20	Marco Barbone	CPPclang++18.1.3	Success	30,050
Oct 11, 2025 04:17	Marco Barbone	CPPclang++18.1.3	Success	31,992
Oct 11, 2025 04:16	Marco Barbone	CPPclang++18.1.3	Success	31,179
Oct 11, 2025 04:13	Marco Barbone	CPPg++13.3.0	Success	34,105
Oct 11, 2025 04:10	Marco Barbone	CPPclang++18.1.3	Success	31,963
Oct 11, 2025 04:09	Marco Barbone	CPPclang++18.1.3	Success	31,199
Oct 11, 2025 04:08	Marco Barbone	CPPclang++18.1.3	Success	31,984
Oct 11, 2025 04:07	Marco Barbone	CPPg++13.3.0	Success	33,276
Oct 11, 2025 04:07	Marco Barbone	CPPg++13.3.0	Success	33,701
Oct 11, 2025 04:06	Marco Barbone	CPPg++13.3.0	Success	33,628
Oct 11, 2025 04:05	Marco Barbone	CPPg++13.3.0	Success	33,274
Oct 11, 2025 04:05	Marco Barbone	CPPg++13.3.0	Success	33,640
Oct 11, 2025 04:05	Marco Barbone	CPPg++13.3.0	Success	34,298
Oct 11, 2025 03:53	Marco Barbone	CPPg++13.3.0	Success	34,276
Oct 11, 2025 03:46	Marco Barbone	CPPg++13.3.0	Success	34,271
Oct 11, 2025 03:39	Marco Barbone	CPPclang++18.1.3	Success	31,216
Oct 11, 2025 03:39	Marco Barbone	CPPg++13.3.0	Success	34,268
Oct 11, 2025 03:36	Marco Barbone	CPPg++13.3.0	Success	35,765
Oct 11, 2025 03:35	Marco Barbone	CPPg++13.3.0	Success	28,640+17.50 RP
Oct 11, 2025 03:34	Marco Barbone	CPPg++13.3.0	Success	30,151+33.00 RP
Oct 11, 2025 03:32	Marco Barbone	CPPg++13.3.0	Success	33,729
Oct 11, 2025 03:30	Marco Barbone	CPPg++13.3.0	Success	33,482+2.85 RP
Oct 11, 2025 03:28	Marco Barbone	CPPg++13.3.0	Success	33,805+12.53 RP
Oct 11, 2025 02:51	Marco Barbone	CPPg++13.3.0	Success	79,304
Oct 11, 2025 02:50	Marco Barbone	CPPg++13.3.0	Error
Oct 11, 2025 02:47	CheranMahalingam	CPPg++13.3.0	Error
Oct 11, 2025 02:45	CheranMahalingam	CPPg++13.3.0	Success	51,958
Oct 11, 2025 02:12	Marco Barbone	CPPg++13.3.0	Error
Oct 10, 2025 02:46	Marco Barbone	CPPg++13.3.0	Success	71,432
Oct 10, 2025 02:30	Marco Barbone	CPPclang++18.1.3	Success	43,320
Oct 10, 2025 02:25	Marco Barbone	CPPclang++18.1.3	Success	69,092
Oct 10, 2025 02:24	Marco Barbone	CPPg++13.3.0	Success	96,959
Oct 10, 2025 02:06	Marco Barbone	CPPg++13.3.0	Success	94,571
Oct 10, 2025 01:58	Marco Barbone	CPPg++13.3.0	Success	74,557
Oct 10, 2025 01:20	Mustafa	CPPg++13.3.0	Success	86,787
Oct 10, 2025 01:14	Mustafa	CPPg++13.3.0	Success	70,307+17.51 RP
Oct 10, 2025 01:13	Mustafa	CPPg++13.3.0	Success	80,180+124.72 RP
Oct 9, 2025 15:25	Serhat Eren	CPPg++13.3.0	Error
Oct 9, 2025 15:23	Serhat Eren	CPPg++13.3.0	Error
Oct 9, 2025 15:22	Serhat Eren	CPPg++13.3.0	Error
Oct 9, 2025 15:19	Serhat Eren	CPPg++13.3.0	Success	49,996
Oct 9, 2025 15:18	Serhat Eren	CPPg++13.3.0	Success	49,983+47.92 RP
Oct 9, 2025 15:15	Serhat Eren	CPPg++13.3.0	Success	65,726+126.83 RP
Oct 9, 2025 03:25	CheranMahalingam	CPPg++13.3.0	Error
Oct 9, 2025 03:22	CheranMahalingam	CPPg++13.3.0	Success	52,348
Oct 9, 2025 03:21	CheranMahalingam	CPPg++13.3.0	Success	52,486
Oct 9, 2025 03:20	CheranMahalingam	CPPg++13.3.0	Success	52,445
Oct 9, 2025 03:19	CheranMahalingam	CPPg++13.3.0	Success	52,455
Oct 9, 2025 03:18	CheranMahalingam	CPPg++13.3.0	Success	52,429
Oct 9, 2025 03:15	CheranMahalingam	CPPg++13.3.0	Error
Oct 9, 2025 03:14	CheranMahalingam	CPPg++13.3.0	Success	52,422
Oct 9, 2025 03:13	CheranMahalingam	CPPg++13.3.0	Success	51,814+0.45 RP
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

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