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 9, 2026 20:22	Victor Mercklé	CPPg++14.2.0	Success	37,956
Jul 9, 2026 20:16	Victor Mercklé	CPPg++14.2.0	Success	34,239
Jul 9, 2026 20:11	Victor Mercklé	CPPg++14.2.0	Success	23,098
Jul 9, 2026 20:06	Victor Mercklé	CPPg++14.2.0	Success	23,946
Jul 9, 2026 19:56	Victor Mercklé	CPPg++14.2.0	Success	19,742
Jul 9, 2026 19:46	Victor Mercklé	CPPg++14.2.0	Success	157,182
Jul 9, 2026 19:34	Victor Mercklé	CPPg++14.2.0	Success	13,867
Jul 9, 2026 19:26	Victor Mercklé	CPPg++14.2.0	Success	25,463
Jul 9, 2026 19:20	Victor Mercklé	CPPg++14.2.0	Success	14,063
Jul 9, 2026 18:58	Victor Mercklé	CPPg++14.2.0	Success	14,153
Jul 9, 2026 18:44	Victor Mercklé	CPPg++14.2.0	Success	19,525
Jul 9, 2026 18:25	Victor Mercklé	CPPg++14.2.0	Success	13,531
Jul 9, 2026 18:12	Victor Mercklé	CPPg++14.2.0	Success	73,494
Jul 9, 2026 18:02	Victor Mercklé	CPPg++14.2.0	Success	4,501
Jul 9, 2026 17:55	Victor Mercklé	CPPg++14.2.0	Success	4,415
Jul 9, 2026 17:54	boop34	CPPg++14.2.0	Success	99,329
Jul 9, 2026 17:51	boop34	CPPg++10.5.0	Success	96,964
Jul 9, 2026 17:47	boop34	CPPg++10.5.0	Error
Jul 9, 2026 17:44	boop34	CPPg++10.5.0	Error
Jul 9, 2026 17:39	boop34	CPPg++10.5.0	Error
Jul 9, 2026 17:39	Victor Mercklé	CPPg++14.2.0	Success	4,112
Jul 9, 2026 17:25	Victor Mercklé	CPPg++14.2.0	Success	4,091+1.19 RP
Jul 9, 2026 17:22	boop34	CPPg++10.5.0	Error
Jul 9, 2026 17:17	Victor Mercklé	CPPg++14.2.0	Success	4,503
Jul 9, 2026 16:58	Victor Mercklé	CPPg++14.2.0	Success	45,131
Jul 9, 2026 16:42	Victor Mercklé	CPPg++14.2.0	Success	18,179
Jul 9, 2026 16:37	Victor Mercklé	CPPg++14.2.0	Success	289,061
Jul 9, 2026 16:21	Victor Mercklé	CPPg++14.2.0	Success	18,191
Jul 9, 2026 15:22	Victor Mercklé	CPPg++14.2.0	Success	35,415
Jul 9, 2026 15:11	Victor Mercklé	CPPg++14.2.0	Success	18,182
Jul 9, 2026 15:02	boop34	CPPg++10.5.0	Success	58,283+42.85 RP
Jul 9, 2026 12:59	Victor Mercklé	CPPg++14.2.0	Success	92,655
Jul 9, 2026 12:51	Victor Mercklé	CPPg++14.2.0	Success	73,356
Jul 9, 2026 12:46	Victor Mercklé	CPPg++14.2.0	Success	70,603
Jul 9, 2026 12:33	Victor Mercklé	CPPg++14.2.0	Success	4,096
Jul 9, 2026 12:28	Victor Mercklé	CPPg++14.2.0	Success	88,431
Jul 9, 2026 12:20	Victor Mercklé	CPPg++14.2.0	Success	91,833
Jul 9, 2026 10:22	Victor Mercklé	CPPg++14.2.0	Success	68,846
Jul 9, 2026 10:15	Victor Mercklé	CPPg++14.2.0	Success	68,000
Jul 9, 2026 09:57	Victor Mercklé	CPPg++14.2.0	Success	25,729
Jul 9, 2026 07:20	Alexander Stanovoy	CPPg++10.5.0	Error
Jul 9, 2026 07:02	Alexander Stanovoy	CPPg++14.2.0	Error
Jul 9, 2026 06:33	Alexander Stanovoy	CPPg++10.5.0	Error
Jul 9, 2026 06:29	Victor Mercklé	CPPg++14.2.0	Success	20,111
Jul 9, 2026 06:19	Victor Mercklé	CPPg++14.2.0	Success	22,088
Jul 9, 2026 06:13	Victor Mercklé	CPPg++14.2.0	Success	4,100
Jul 9, 2026 06:03	Victor Mercklé	CPPg++14.2.0	Success	18,276
Jul 9, 2026 05:52	Victor Mercklé	CPPg++14.2.0	Success	17,914
Jul 9, 2026 05:44	Victor Mercklé	CPPg++14.2.0	Success	22,197
Jul 9, 2026 03:01	Victor Mercklé	CPPg++14.2.0	Success	16,355
Jul 9, 2026 02:51	Victor Mercklé	CPPg++14.2.0	Success	20,159
Jul 8, 2026 23:38	Victor Mercklé	CPPg++14.2.0	Success	65,867
Jul 8, 2026 23:27	Victor Mercklé	CPPg++14.2.0	Success	13,068
Jul 8, 2026 20:21	Adam Folwarczny	CPPg++14.2.0	Success	57,551
Jul 8, 2026 15:40	Alexander Stanovoy	CPPg++10.5.0	Success	38,409+6.86 RP
Jul 8, 2026 15:28	Alexander Stanovoy	CPPg++10.5.0	Error
Jul 8, 2026 15:22	Victor Mercklé	CPPg++14.2.0	Success	13,239
Jul 8, 2026 15:14	Alexander Stanovoy	CPPg++10.5.0	Success	39,449+0.47 RP
Jul 8, 2026 14:50	Alexander Stanovoy	CPPg++10.5.0	Success	73,810
Jul 8, 2026 11:51	Victor Mercklé	CPPg++14.2.0	Success	8,960
Jul 8, 2026 11:46	Victor Mercklé	CPPg++14.2.0	Success	4,104
Jul 8, 2026 11:41	Victor Mercklé	CPPg++14.2.0	Success	4,111
Jul 8, 2026 11:39	Alexander Stanovoy	CPPg++10.5.0	Success	41,003
Jul 8, 2026 11:33	Victor Mercklé	CPPg++14.2.0	Success	4,093+3.58 RP
Jul 8, 2026 11:30	Alexander Stanovoy	CPPg++10.5.0	Success	39,523+14.60 RP
Jul 8, 2026 11:28	Victor Mercklé	CPPg++14.2.0	Success	4,135
Jul 8, 2026 11:26	Alexander Stanovoy	CPPclang++20.1.2	Success	41,943+12.02 RP
Jul 8, 2026 11:23	Victor Mercklé	CPPg++14.2.0	Success	63,944
Jul 8, 2026 06:48	Victor Mercklé	CPPg++14.2.0	Success	24,810
Jul 8, 2026 06:34	Victor Mercklé	CPPg++14.2.0	Success	5,797
Jul 7, 2026 22:32	zemledel	CPPg++10.5.0	Success	71,869+21.25 RP
Jul 7, 2026 22:19	zemledel	CPPg++10.5.0	Success	98,215
Jul 7, 2026 20:06	Kevin Heavey	RUSTrust-1.95.0	Success	4,624
Jul 7, 2026 19:54	Kevin Heavey	RUSTrust-1.95.0	Success	4,339
Jul 7, 2026 19:35	Kevin Heavey	RUSTrust-1.95.0	Error
Jul 7, 2026 19:28	Kevin Heavey	RUSTrust-1.95.0	Success	4,293
Jul 7, 2026 19:23	Kevin Heavey	RUSTrust-1.95.0	Success	4,105
Jul 7, 2026 19:22	Kevin Heavey	RUSTrust-1.95.0	Error	+30.85 RP
Jul 7, 2026 19:07	Kevin Heavey	RUSTrust-1.95.0	Error
Jul 7, 2026 19:07	Kevin Heavey	RUSTrust-1.95.0	Success	9,753
Jul 7, 2026 19:06	Kevin Heavey	RUSTrust-1.95.0	Success	10,293
Jul 7, 2026 18:46	zemledel	CPPg++10.5.0	Success	84,824+117.89 RP
Jul 7, 2026 18:44	Kevin Heavey	RUSTrust-1.95.0	Error
Jul 7, 2026 18:43	Kevin Heavey	RUSTrust-1.95.0	Success	4,063
Jul 7, 2026 18:43	Kevin Heavey	RUSTrust-1.95.0	Success	4,080
Jul 7, 2026 18:33	Kevin Heavey	RUSTrust-1.95.0	Error
Jul 7, 2026 18:32	Kevin Heavey	RUSTrust-1.95.0	Error	+10.33 RP
Jul 7, 2026 18:30	Kevin Heavey	RUSTrust-1.95.0	Error
Jul 7, 2026 18:04	Alexander Stanovoy	CPPclang++19.1.1	Success	44,170+61.69 RP
Jul 7, 2026 17:44	Kevin Heavey	RUSTrust-1.95.0	Success	9,722
Jul 7, 2026 17:34	Jarry Xiao	RUSTrust-1.95.0	Success	36,497+102.35 RP
Jul 7, 2026 16:47	Victor Mercklé	CPPg++14.2.0	Success	4,099+16.55 RP
Jul 7, 2026 16:21	Kevin Heavey	RUSTrust-1.95.0	Error
Jul 7, 2026 16:21	Kevin Heavey	RUSTrust-1.95.0	Error	+3.85 RP
Jul 7, 2026 15:55	Jarry Xiao	RUSTrust-1.95.0	Success	58,261+62.09 RP
Jul 7, 2026 15:26	Kevin Heavey	RUSTrust-1.95.0	Error
Jul 7, 2026 14:31	Kevin Heavey	RUSTrust-1.95.0	Success	4,361
Jul 7, 2026 14:29	Victor Mercklé	CPPg++14.2.0	Success	4,998
Jul 7, 2026 14:21	Kevin Heavey	RUSTrust-1.95.0	Success	4,060
Jul 7, 2026 14:15	Kevin Heavey	RUSTrust-1.95.0	Error

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