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
Jul 30, 2026 15:10	CodeReclaimers	CPPclang++20.1.2	Success	17,946+171.77 RP
Jul 30, 2026 15:05	CodeReclaimers	CPPg++10.5.0	Success	25,943+168.74 RP
Jul 30, 2026 14:48	CodeReclaimers	CPPg++10.5.0	Success	48,715
Jul 30, 2026 14:43	CodeReclaimers	CPPclang++20.1.2	Success	46,143+65.34 RP
Jul 30, 2026 14:32	CodeReclaimers	CPPclang++20.1.2	Success	69,486
Jul 30, 2026 14:15	CodeReclaimers	CPPg++10.5.0	Success	66,058+151.38 RP
Jul 29, 2026 22:33	boop34	CPPg++14.2.0	Success	8,993
Jul 28, 2026 21:29	boop34	CPPg++14.2.0	Error
Jul 28, 2026 21:29	boop34	CPPg++14.2.0	Error
Jul 28, 2026 21:27	boop34	CPPg++14.2.0	Error
Jul 28, 2026 21:26	boop34	CPPg++14.2.0	Error
Jul 28, 2026 19:33	boop34	CPPg++14.2.0	Success	9,966
Jul 28, 2026 19:15	boop34	CPPg++14.2.0	Success	10,535
Jul 28, 2026 19:12	boop34	CPPg++14.2.0	Success	11,209
Jul 27, 2026 20:20	boop34	CPPg++14.2.0	Error
Jul 27, 2026 20:17	boop34	CPPg++14.2.0	Error
Jul 27, 2026 20:09	boop34	CPPg++14.2.0	Success	8,880+0.38 RP
Jul 27, 2026 19:53	boop34	CPPg++14.2.0	Success	8,883+4.42 RP
Jul 27, 2026 09:55	boop34	CPPg++14.2.0	Success	38,396
Jul 27, 2026 03:29	Kevin Heavey	CPPg++13.3.0	Error
Jul 27, 2026 03:16	Kevin Heavey	CPPg++13.3.0	Success	7,843
Jul 27, 2026 02:06	Kevin Heavey	CPPg++13.3.0	Error
Jul 27, 2026 02:04	Kevin Heavey	CPPg++10.5.0	Success	3,713
Jul 27, 2026 02:04	Kevin Heavey	CPPg++10.5.0	Success	3,614
Jul 27, 2026 01:58	Kevin Heavey	CPPg++10.5.0	Success	4,513
Jul 27, 2026 01:57	Kevin Heavey	CPPg++10.5.0	Success	4,500
Jul 27, 2026 01:54	Kevin Heavey	CPPg++10.5.0	Success	5,304
Jul 27, 2026 01:54	Kevin Heavey	CPPg++10.5.0	Success	5,157
Jul 27, 2026 01:46	Kevin Heavey	CPPg++10.5.0	Error
Jul 27, 2026 01:46	Kevin Heavey	CPPg++10.5.0	Error
Jul 26, 2026 22:20	boop34	CPPg++14.2.0	Success	48,068
Jul 26, 2026 22:04	boop34	CPPg++14.2.0	Success	44,331
Jul 26, 2026 21:44	boop34	CPPg++14.2.0	Success	38,592
Jul 26, 2026 04:02	nishchay213	CPPg++10.5.0	Success	525,642+19.02 RP
Jul 25, 2026 22:02	Kevin Heavey	CPPg++13.3.0	Success	3,603
Jul 25, 2026 22:02	Kevin Heavey	CPPg++13.3.0	Success	3,610
Jul 25, 2026 21:59	Kevin Heavey	CPPg++13.3.0	Success	6,245
Jul 25, 2026 21:58	Kevin Heavey	CPPg++13.3.0	Success	3,726
Jul 25, 2026 21:58	Kevin Heavey	CPPg++13.3.0	Success	3,812
Jul 25, 2026 18:39	boop34	CPPg++14.2.0	Success	9,340
Jul 24, 2026 21:49	boop34	CPPg++14.2.0	Success	9,032
Jul 24, 2026 21:31	Kevin Heavey	CPPg++10.5.0	Success	3,608
Jul 24, 2026 21:25	Kevin Heavey	CPPg++10.5.0	Success	3,593
Jul 24, 2026 21:25	Kevin Heavey	CPPg++10.5.0	Success	3,786
Jul 24, 2026 21:24	Kevin Heavey	CPPg++10.5.0	Success	3,644
Jul 24, 2026 21:07	Kevin Heavey	CPPclang++20.1.2	Success	3,647
Jul 24, 2026 21:01	Kevin Heavey	CPPg++14.2.0	Success	3,583
Jul 24, 2026 20:49	Kevin Heavey	CPPg++10.5.0	Success	3,640
Jul 24, 2026 20:45	Kevin Heavey	CPPg++10.5.0	Success	3,814
Jul 24, 2026 20:17	Kevin Heavey	CPPg++10.5.0	Success	3,802
Jul 24, 2026 19:44	Kevin Heavey	CPPg++10.5.0	Success	3,755
Jul 24, 2026 19:44	Kevin Heavey	CPPg++10.5.0	Success	3,789
Jul 24, 2026 19:31	Kevin Heavey	CPPg++10.5.0	Success	3,625
Jul 24, 2026 19:26	Kevin Heavey	CPPg++10.5.0	Success	3,566
Jul 24, 2026 19:24	Kevin Heavey	CPPg++10.5.0	Success	3,637
Jul 24, 2026 19:23	Kevin Heavey	CPPg++10.5.0	Success	3,674
Jul 24, 2026 18:35	Kevin Heavey	ZIG0.15.1	Error
Jul 24, 2026 18:28	Kevin Heavey	GOgo1.26.2	Success	3,791+333.68 RP
Jul 24, 2026 18:23	Kevin Heavey	CSHARP9.0.15	Success	3,928+248.56 RP
Jul 24, 2026 18:23	Kevin Heavey	ZIG0.15.1	Error
Jul 24, 2026 18:21	Kevin Heavey	GOgo1.26.2	Error
Jul 23, 2026 16:11	Kasper Kivimäki	CPPg++14.2.0	Success	59,292
Jul 23, 2026 16:08	Kasper Kivimäki	CPPg++10.5.0	Success	57,783
Jul 23, 2026 16:06	Kasper Kivimäki	CPPg++10.5.0	Success	56,343+5.01 RP
Jul 23, 2026 16:03	Kasper Kivimäki	CPPg++10.5.0	Success	58,420
Jul 23, 2026 16:00	Kasper Kivimäki	CPPg++10.5.0	Success	61,319
Jul 23, 2026 15:59	Kasper Kivimäki	CPPg++10.5.0	Success	58,570
Jul 23, 2026 15:53	Kasper Kivimäki	CPPg++10.5.0	Success	63,080+5.00 RP
Jul 23, 2026 02:24	Kevin Heavey	CPPg++14.2.0	Success	4,073
Jul 23, 2026 02:01	Kevin Heavey	CPPg++14.2.0	Success	4,024
Jul 23, 2026 01:23	Kevin Heavey	CPPg++14.2.0	Success	4,062
Jul 23, 2026 01:00	Kevin Heavey	CPPg++14.2.0	Success	75,773+5.00 RP
Jul 22, 2026 23:53	Kevin Heavey	CPPg++14.2.0	Success	3,718
Jul 22, 2026 23:36	Kevin Heavey	CPPg++14.2.0	Error
Jul 22, 2026 23:21	Kevin Heavey	CPPg++14.2.0	Success	3,699
Jul 22, 2026 23:14	Kevin Heavey	CPPg++14.2.0	Success	3,879
Jul 22, 2026 22:57	Kevin Heavey	CPPg++14.2.0	Error
Jul 22, 2026 22:14	Kevin Heavey	CPPg++14.2.0	Success	3,793
Jul 22, 2026 21:58	Kevin Heavey	CPPg++14.2.0	Success	3,935
Jul 22, 2026 21:52	Kevin Heavey	CPPg++14.2.0	Success	61,461
Jul 22, 2026 21:23	Kevin Heavey	CPPg++14.2.0	Success	3,828
Jul 22, 2026 21:04	Kevin Heavey	CPPg++14.2.0	Success	57,950
Jul 22, 2026 20:43	Kevin Heavey	CPPg++10.5.0	Success	3,674
Jul 22, 2026 20:25	Kevin Heavey	CPPg++14.2.0	Success	57,077
Jul 22, 2026 19:26	Kevin Heavey	CPPg++14.2.0	Success	3,791
Jul 22, 2026 19:17	Kevin Heavey	CPPg++14.2.0	Success	63,595
Jul 22, 2026 19:00	Kasper Kivimäki	CPPg++14.2.0	Success	58,159
Jul 22, 2026 18:59	Kasper Kivimäki	CPPg++10.5.0	Error
Jul 22, 2026 18:57	Kasper Kivimäki	CPPg++10.5.0	Success	61,614
Jul 22, 2026 18:56	Kasper Kivimäki	CPPg++14.2.0	Success	59,077
Jul 22, 2026 18:45	Kasper Kivimäki	CPPg++14.2.0	Error
Jul 22, 2026 18:43	Kasper Kivimäki	CPPg++10.5.0	Success	58,610
Jul 22, 2026 18:41	Kasper Kivimäki	CPPg++14.2.0	Success	58,657
Jul 22, 2026 18:41	Kevin Heavey	CPPg++10.5.0	Success	3,834
Jul 22, 2026 18:40	Kasper Kivimäki	CPPg++14.2.0	Success	57,979+0.10 RP
Jul 22, 2026 18:26	Kasper Kivimäki	CPPg++14.2.0	Success	58,151
Jul 22, 2026 18:11	Kasper Kivimäki	CPPg++14.2.0	Success	58,050
Jul 22, 2026 18:07	Kasper Kivimäki	CPPg++14.2.0	Success	58,121
Jul 22, 2026 18:06	Kasper Kivimäki	CPPg++10.5.0	Success	62,232
Jul 22, 2026 17:56	Kasper Kivimäki	CPPg++10.5.0	Success	58,074

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