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
Jan 1, 2026 21:52	Josu San Martin	CPPg++13.3.0	Error
Jan 1, 2026 21:51	Josu San Martin	CPPg++13.3.0	Error
Jan 1, 2026 21:50	Josu San Martin	CPPg++13.3.0	Success	8,113
Jan 1, 2026 21:47	Josu San Martin	CPPg++13.3.0	Error
Jan 1, 2026 21:33	Josu San Martin	CPPg++13.3.0	Error
Jan 1, 2026 21:03	Josu San Martin	RUSTrust-1.92.0	Success	6,521
Jan 1, 2026 21:03	Josu San Martin	RUSTrust-1.92.0	Success	6,495
Jan 1, 2026 20:50	Josu San Martin	CPPg++13.3.0	Success	6,802
Jan 1, 2026 20:19	Josu San Martin	RUSTrust-1.92.0	Success	6,480
Jan 1, 2026 20:17	Josu San Martin	CPPg++13.3.0	Success	6,582
Jan 1, 2026 20:16	Josu San Martin	CPPg++13.3.0	Success	6,575
Jan 1, 2026 20:16	Josu San Martin	CPPclang++18.1.3	Success	6,664
Jan 1, 2026 20:14	Josu San Martin	RUSTrust-1.92.0	Success	6,496
Jan 1, 2026 20:07	Josu San Martin	CPPclang++18.1.3	Success	7,377
Jan 1, 2026 20:06	Josu San Martin	CPPg++13.3.0	Success	7,079
Jan 1, 2026 20:06	Josu San Martin	RUSTrust-1.92.0	Success	6,361+90.26 RP
Jan 1, 2026 19:49	Josu San Martin	RUSTrust-1.92.0	Success	6,549+153.66 RP
Jan 1, 2026 19:46	Josu San Martin	CPPg++13.3.0	Success	7,029
Jan 1, 2026 19:37	Josu San Martin	GOgo1.25.5	Success	337,548
Jan 1, 2026 19:32	Josu San Martin	RUSTrust-1.92.0	Success	6,896+51.22 RP
Jan 1, 2026 19:30	Josu San Martin	CPPg++13.3.0	Success	9,400
Jan 1, 2026 19:25	Josu San Martin	CPPg++13.3.0	Success	8,808
Jan 1, 2026 19:22	Josu San Martin	RUSTrust-1.92.0	Success	7,020+907.29 RP
Jan 1, 2026 19:14	Josu San Martin	CPPg++13.3.0	Success	9,489+699.61 RP
Jan 1, 2026 18:45	Josu San Martin	RUSTrust-1.92.0	Error
Jan 1, 2026 18:44	Josu San Martin	RUSTrust-1.92.0	Error
Jan 1, 2026 18:44	Josu San Martin	RUSTrust-1.92.0	Success	82,758
Jan 1, 2026 18:35	Josu San Martin	RUSTrust-1.92.0	Success	110,569
Jan 1, 2026 18:35	Josu San Martin	RUSTrust-1.92.0	Error
Jan 1, 2026 18:27	Josu San Martin	CPPg++13.3.0	Success	33,461
Jan 1, 2026 16:47	Josu San Martin	CPPg++13.3.0	Success	64,647
Jan 1, 2026 09:02	kairvee	CPPg++13.3.0	Error
Jan 1, 2026 08:59	kairvee	CPPg++13.3.0	Success	68,348
Jan 1, 2026 08:57	kairvee	CPPg++13.3.0	Success	69,976
Jan 1, 2026 08:54	kairvee	CPPg++13.3.0	Success	59,000+169.49 RP
Dec 31, 2025 20:43	Павел Ратманов	CPPg++13.3.0	Error
Dec 31, 2025 15:13	Павел Ратманов	CPPg++13.3.0	Success	67,414
Dec 31, 2025 05:22	Josu San Martin	CPPg++13.3.0	Success	51,039
Dec 31, 2025 05:22	Josu San Martin	CPPclang++18.1.3	Success	54,725
Dec 31, 2025 03:21	Josu San Martin	RUSTrust-1.92.0	Error
Dec 30, 2025 19:15	Павел Ратманов	CPPg++13.3.0	Success	68,082
Dec 30, 2025 19:14	Павел Ратманов	CPPclang++18.1.3	Success	68,785
Dec 30, 2025 19:08	Павел Ратманов	CPPclang++18.1.3	Error
Dec 30, 2025 19:07	Павел Ратманов	CPPclang++18.1.3	Error
Dec 30, 2025 19:03	Павел Ратманов	CPPclang++18.1.3	Error
Dec 30, 2025 18:50	Павел Ратманов	CPPg++13.3.0	Success	52,446
Dec 30, 2025 18:46	Павел Ратманов	CPPg++13.3.0	Error
Dec 30, 2025 18:44	Павел Ратманов	CPPg++13.3.0	Error
Dec 30, 2025 18:44	Павел Ратманов	CPPg++13.3.0	Error
Dec 30, 2025 18:39	Павел Ратманов	CPPg++13.3.0	Error
Dec 30, 2025 18:36	Павел Ратманов	CPPg++13.3.0	Error
Dec 30, 2025 18:35	Павел Ратманов	CPPg++13.3.0	Error
Dec 30, 2025 18:34	Павел Ратманов	CPPg++13.3.0	Error
Dec 30, 2025 18:29	Павел Ратманов	CPPg++13.3.0	Error
Dec 30, 2025 18:25	Павел Ратманов	CPPg++13.3.0	Error
Dec 30, 2025 18:01	Aman \| अमन	CPPg++13.3.0	Error
Dec 30, 2025 18:01	Aman \| अमन	CPPg++13.3.0	Error
Dec 30, 2025 13:06	Yehor Bondar	CPPg++13.3.0	Success	75,900+64.06 RP
Dec 30, 2025 09:55	Mark R Best	RUSTrust-1.92.0	Success	61,661
Dec 30, 2025 09:52	Mark R Best	RUSTrust-1.92.0	Success	61,664
Dec 30, 2025 09:51	Mark R Best	RUSTrust-1.92.0	Success	62,725
Dec 30, 2025 09:51	Mark R Best	RUSTrust-1.92.0	Success	61,537
Dec 30, 2025 09:48	Mark R Best	RUSTrust-1.92.0	Error
Dec 30, 2025 09:33	Mark R Best	RUSTrust-1.92.0	Error
Dec 30, 2025 09:33	Mark R Best	RUSTrust-1.92.0	Error
Dec 30, 2025 09:24	Mark R Best	RUSTrust-1.92.0	Error
Dec 30, 2025 09:13	Mark R Best	RUSTrust-1.92.0	Success	56,963
Dec 30, 2025 09:11	Mark R Best	RUSTrust-1.92.0	Error
Dec 30, 2025 09:07	Mark R Best	RUSTrust-1.92.0	Error
Dec 30, 2025 09:05	Mark R Best	RUSTrust-1.92.0	Error
Dec 30, 2025 08:57	Mark R Best	RUSTrust-1.92.0	Error
Dec 30, 2025 08:52	Mark R Best	RUSTrust-1.92.0	Success	51,945+15.02 RP
Dec 30, 2025 08:51	Mark R Best	RUSTrust-1.92.0	Success	60,137
Dec 30, 2025 08:48	Mark R Best	RUSTrust-1.92.0	Success	70,452
Dec 30, 2025 08:47	Mark R Best	RUSTrust-1.92.0	Error
Dec 30, 2025 08:41	Mark R Best	RUSTrust-1.92.0	Success	76,367
Dec 30, 2025 08:30	Mark R Best	RUSTrust-1.92.0	Error
Dec 30, 2025 08:29	Mark R Best	RUSTrust-1.92.0	Error
Dec 30, 2025 08:28	Mark R Best	RUSTrust-1.92.0	Error
Dec 30, 2025 08:21	Mark R Best	RUSTrust-1.92.0	Error
Dec 30, 2025 06:28	Josu San Martin	GOgo1.25.5	Success	44,359
Dec 30, 2025 06:13	Josu San Martin	GOgo1.25.5	Success	44,327
Dec 30, 2025 05:39	Josu San Martin	GOgo1.25.5	Success	52,255
Dec 30, 2025 04:49	Josu San Martin	CPPclang++18.1.3	Success	30,946
Dec 30, 2025 04:43	Josu San Martin	CPPclang++18.1.3	Success	30,219
Dec 30, 2025 04:43	Josu San Martin	CPPclang++18.1.3	Success	30,846
Dec 30, 2025 04:41	Josu San Martin	CPPg++13.3.0	Success	29,478
Dec 30, 2025 04:25	Josu San Martin	CPPg++13.3.0	Success	30,459
Dec 29, 2025 22:05	Павел Ратманов	CPPg++13.3.0	Success	51,522
Dec 29, 2025 22:04	Павел Ратманов	CPPg++13.3.0	Success	51,529
Dec 29, 2025 22:02	Павел Ратманов	CPPg++13.3.0	Success	55,667
Dec 29, 2025 21:56	Павел Ратманов	CPPg++13.3.0	Success	66,785
Dec 29, 2025 21:49	Павел Ратманов	CPPg++13.3.0	Error
Dec 29, 2025 21:46	Павел Ратманов	CPPg++13.3.0	Error
Dec 29, 2025 21:19	Павел Ратманов	CPPclang++18.1.3	Success	52,507
Dec 29, 2025 21:19	Павел Ратманов	CPPg++13.3.0	Success	46,729
Dec 29, 2025 21:15	Павел Ратманов	CPPg++13.3.0	Success	46,705+14.83 RP
Dec 29, 2025 20:13	Aman \| अमन	CPPg++13.3.0	Error
Dec 29, 2025 20:12	Aman \| अमन	CPPg++13.3.0	Success	52,703
Dec 29, 2025 20:10	Aman \| अमन	CPPg++13.3.0	Success	53,704

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