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
Aug 2, 2026 14:56	George Seabridge	RUSTrust-1.95.0	Success	10,913
Aug 2, 2026 14:48	CodeReclaimers	CPPclang++20.1.2	Success	5,340+402.94 RP
Aug 2, 2026 14:47	Tony	CPPg++10.5.0	Success	22,296
Aug 2, 2026 14:42	Tony	CPPg++10.5.0	Error
Aug 2, 2026 14:25	Tony	CPPg++10.5.0	Success	40,464
Aug 2, 2026 14:24	Tony	CPPg++10.5.0	Success	39,739
Aug 2, 2026 14:01	CodeReclaimers	CPPclang++20.1.2	Success	6,804+40.74 RP
Aug 2, 2026 13:39	hsfzxjy	CPPg++10.5.0	Success	88,999+112.36 RP
Aug 2, 2026 13:25	CodeReclaimers	CPPclang++20.1.2	Success	6,998+742.02 RP
Aug 2, 2026 12:46	George Seabridge	RUSTrust-1.95.0	Success	7,944
Aug 2, 2026 12:45	George Seabridge	RUSTrust-1.95.0	Success	7,929
Aug 2, 2026 12:45	George Seabridge	RUSTrust-1.95.0	Success	7,815
Aug 2, 2026 12:02	George Seabridge	RUSTrust-1.95.0	Success	7,825
Aug 2, 2026 11:57	Andrey Tsvetkov	GOgo1.26.5	Success	39,245
Aug 2, 2026 11:57	George Seabridge	RUSTrust-1.95.0	Success	7,881
Aug 2, 2026 11:56	George Seabridge	RUSTrust-1.95.0	Success	7,831
Aug 2, 2026 11:55	Andrey Tsvetkov	GOgo1.26.5	Error
Aug 2, 2026 11:54	Tony	CPPg++10.5.0	Success	14,934+318.07 RP
Aug 2, 2026 11:53	Andrey Tsvetkov	GOgo1.26.5	Error
Aug 2, 2026 11:45	Andrey Tsvetkov	GOgo1.26.5	Error
Aug 2, 2026 11:29	Andrey Tsvetkov	GOgo1.26.2	Success	93,918
Aug 2, 2026 11:26	Andrey Tsvetkov	GOgo1.26.2	Error
Aug 2, 2026 08:36	Tony	CPPg++10.5.0	Success	28,545
Aug 2, 2026 08:35	Tony	CPPg++10.5.0	Success	28,541
Aug 2, 2026 08:33	George Seabridge	RUSTrust-1.95.0	Success	69,812
Aug 2, 2026 08:33	George Seabridge	RUSTrust-1.95.0	Success	69,659
Aug 2, 2026 08:32	George Seabridge	RUSTrust-1.95.0	Success	69,848
Aug 2, 2026 08:28	George Seabridge	RUSTrust-1.95.0	Success	8,311
Aug 2, 2026 08:27	George Seabridge	RUSTrust-1.95.0	Success	7,834
Aug 2, 2026 08:27	George Seabridge	RUSTrust-1.95.0	Success	7,832
Aug 2, 2026 08:26	George Seabridge	RUSTrust-1.95.0	Success	7,830
Aug 2, 2026 08:01	Tony	CPPg++14.2.0	Success	32,582
Aug 2, 2026 07:25	Andrey Tsvetkov	GOgo1.26.5	Success	40,538
Aug 2, 2026 07:20	George Seabridge	RUSTrust-1.95.0	Success	9,728
Aug 2, 2026 07:18	George Seabridge	RUSTrust-1.95.0	Success	8,528
Aug 2, 2026 07:18	George Seabridge	RUSTrust-1.95.0	Success	8,521
Aug 2, 2026 07:17	George Seabridge	RUSTrust-1.95.0	Success	9,568
Aug 2, 2026 07:12	George Seabridge	RUSTrust-1.95.0	Success	9,722
Aug 2, 2026 07:07	Andrey Tsvetkov	GOgo1.26.5	Success	40,438
Aug 2, 2026 07:00	Andrey Tsvetkov	GOgo1.26.5	Error
Aug 2, 2026 06:37	Andrey Tsvetkov	GOgo1.26.5	Success	40,430
Aug 2, 2026 01:24	alf-p-steinbach	CPPg++14.2.0	Success	62,578+159.80 RP
Aug 2, 2026 01:21	alf-p-steinbach	CPPg++14.2.0	Error
Aug 1, 2026 23:40	Tony	CPPg++14.2.0	Success	29,751
Aug 1, 2026 23:39	Tony	CPPclang++20.1.2	Success	39,360
Aug 1, 2026 23:37	Tony	CPPg++10.5.0	Success	28,458
Aug 1, 2026 23:36	Tony	CPPg++10.5.0	Success	28,446+2.00 RP
Aug 1, 2026 23:32	Tony	CPPg++10.5.0	Success	29,532
Aug 1, 2026 23:32	Tony	CPPg++10.5.0	Success	28,609+1.99 RP
Aug 1, 2026 23:23	Tony	CPPg++10.5.0	Success	28,773+63.05 RP
Aug 1, 2026 23:18	Tony	CPPclang++20.1.2	Success	49,430
Aug 1, 2026 23:17	Tony	CPPg++10.5.0	Success	41,807
Aug 1, 2026 23:02	Tony	CPPg++10.5.0	Success	35,150+39.64 RP
Aug 1, 2026 23:02	Tony	CPPg++10.5.0	Success	42,372
Aug 1, 2026 22:23	Tony	CPPg++10.5.0	Success	40,840+5.87 RP
Aug 1, 2026 22:21	Tony	CPPg++10.5.0	Success	41,973
Aug 1, 2026 22:05	Tony	CPPg++10.5.0	Success	41,855
Aug 1, 2026 21:58	Tony	CPPg++10.5.0	Success	111,234
Aug 1, 2026 21:56	Tony	CPPg++10.5.0	Success	116,155
Aug 1, 2026 21:54	Tony	CPPg++10.5.0	Success	111,393
Aug 1, 2026 21:34	Tony	CPPg++10.5.0	Success	53,796
Aug 1, 2026 21:19	Tony	CPPg++10.5.0	Success	52,710
Aug 1, 2026 21:07	Tony	CPPg++10.5.0	Success	59,685
Aug 1, 2026 21:02	Tony	CPPg++10.5.0	Success	52,926
Aug 1, 2026 21:02	Tony	CPPg++10.5.0	Success	52,900
Aug 1, 2026 20:36	Tony	CPPg++10.5.0	Success	41,843+55.18 RP
Aug 1, 2026 20:15	Tony	CPPg++10.5.0	Success	57,959
Aug 1, 2026 20:12	Tony	CPPclang++20.1.2	Error
Aug 1, 2026 19:52	Tony	CPPclang++20.1.2	Success	62,365
Aug 1, 2026 19:17	George Seabridge	RUSTrust-1.95.0	Success	8,613
Aug 1, 2026 19:17	George Seabridge	RUSTrust-1.95.0	Success	9,723
Aug 1, 2026 19:15	George Seabridge	RUSTrust-1.95.0	Success	8,616
Aug 1, 2026 18:56	Tony	CPPclang++20.1.2	Success	56,920
Aug 1, 2026 18:46	Tony	CPPclang++20.1.2	Success	87,182
Aug 1, 2026 18:41	Tony	CPPclang++20.1.2	Success	212,388
Aug 1, 2026 18:40	Tony	CPPg++10.5.0	Success	181,749
Aug 1, 2026 17:35	boop34	CPPg++14.2.0	Success	8,443
Aug 1, 2026 15:27	George Seabridge	RUSTrust-1.95.0	Success	6,973
Aug 1, 2026 15:23	George Seabridge	RUSTrust-1.95.0	Success	7,327
Aug 1, 2026 15:15	George Seabridge	RUSTrust-1.95.0	Success	50,734
Aug 1, 2026 15:14	George Seabridge	RUSTrust-1.95.0	Success	50,345
Aug 1, 2026 15:14	George Seabridge	RUSTrust-1.95.0	Success	45,979
Aug 1, 2026 15:00	George Seabridge	RUSTrust-1.95.0	Success	8,134
Aug 1, 2026 14:59	George Seabridge	RUSTrust-1.95.0	Success	6,954
Aug 1, 2026 14:58	George Seabridge	RUSTrust-1.95.0	Success	72,020
Aug 1, 2026 14:55	George Seabridge	RUSTrust-1.95.0	Success	77,595
Aug 1, 2026 14:54	George Seabridge	RUSTrust-1.95.0	Success	8,967
Aug 1, 2026 14:36	George Seabridge	RUSTrust-1.95.0	Success	72,381
Aug 1, 2026 13:49	George Seabridge	RUSTrust-1.95.0	Success	6,855+7.41 RP
Aug 1, 2026 13:48	George Seabridge	RUSTrust-1.95.0	Success	8,148
Aug 1, 2026 13:45	George Seabridge	RUSTrust-1.95.0	Success	8,161
Aug 1, 2026 13:44	George Seabridge	RUSTrust-1.95.0	Success	7,116
Aug 1, 2026 13:43	George Seabridge	RUSTrust-1.95.0	Success	8,144
Aug 1, 2026 13:43	George Seabridge	RUSTrust-1.95.0	Success	8,154
Aug 1, 2026 13:41	George Seabridge	RUSTrust-1.95.0	Success	8,162
Aug 1, 2026 13:28	George Seabridge	RUSTrust-1.95.0	Success	8,636
Aug 1, 2026 13:26	George Seabridge	RUSTrust-1.95.0	Success	8,108
Aug 1, 2026 13:25	George Seabridge	RUSTrust-1.95.0	Success	8,670
Aug 1, 2026 13:20	George Seabridge	RUSTrust-1.95.0	Success	7,453
Aug 1, 2026 13:14	George Seabridge	RUSTrust-1.95.0	Success	8,135

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