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
May 6, 2026 16:08	Dominique Garmier	CPPclang++18.1.3	Error
May 6, 2026 15:14	Dominique Garmier	CPPclang++20.1.2	Success	6,737
May 6, 2026 15:13	Dominique Garmier	CPPclang++18.1.3	Success	6,735+21.94 RP
May 6, 2026 08:24	flavio87	CPPg++14.2.0	Success	16,742
May 6, 2026 07:23	flavio87	CPPg++13.3.0	Success	15,709
May 6, 2026 07:17	flavio87	CPPg++14.2.0	Success	15,587+10.76 RP
May 6, 2026 02:07	olliecrow	CPPg++14.2.0	Success	6,974
May 6, 2026 00:24	olliecrow	CPPg++14.2.0	Error
May 5, 2026 21:38	cashkaru	CPPg++10.5.0	Success	55,677+16.50 RP
May 5, 2026 17:03	flavio87	CPPclang++18.1.3	Success	15,853+84.71 RP
May 5, 2026 17:01	flavio87	CPPg++10.5.0	Success	19,163
May 5, 2026 16:46	flavio87	CPPclang++18.1.3	Success	18,312+182.39 RP
May 5, 2026 16:42	M-Rochat	CPPclang++17.0.6	Success	19,882
May 5, 2026 16:41	M-Rochat	CPPclang++17.0.6	Success	19,863
May 5, 2026 16:40	M-Rochat	CPPclang++17.0.6	Success	19,829
May 5, 2026 16:36	M-Rochat	CPPclang++17.0.6	Success	19,725+0.13 RP
May 5, 2026 16:35	M-Rochat	CPPclang++17.0.6	Success	19,730+3.19 RP
May 5, 2026 16:33	M-Rochat	CPPclang++17.0.6	Success	19,855+3.33 RP
May 5, 2026 16:32	M-Rochat	CPPclang++16.0.6	Success	20,952
May 5, 2026 16:30	M-Rochat	CPPclang++17.0.6	Success	19,987+2.39 RP
May 5, 2026 16:25	M-Rochat	CPPclang++19.1.1	Success	20,173
May 5, 2026 16:24	M-Rochat	CPPclang++19.1.1	Success	20,447
May 5, 2026 16:05	M-Rochat	CPPclang++19.1.1	Success	28,725
May 5, 2026 16:02	M-Rochat	CPPg++13.3.0	Success	24,924
May 5, 2026 16:01	M-Rochat	CPPclang++19.1.1	Success	28,256
May 5, 2026 15:53	M-Rochat	CPPclang++19.1.1	Success	23,243
May 5, 2026 15:25	M-Rochat	CPPclang++20.1.2	Success	95,848
May 5, 2026 14:51	flavio87	CPPclang++18.1.3	Success	27,495+106.47 RP
May 5, 2026 14:38	flavio87	CPPg++10.5.0	Success	38,875+0.69 RP
May 5, 2026 14:29	M-Rochat	CPPclang++19.1.1	Success	22,545
May 5, 2026 14:17	flavio87	CPPg++14.2.0	Success	38,979+25.03 RP
May 5, 2026 14:17	M-Rochat	CPPclang++19.1.1	Success	20,083+0.77 RP
May 5, 2026 14:05	M-Rochat	CPPclang++18.1.3	Success	20,114+10.29 RP
May 5, 2026 14:02	M-Rochat	CPPclang++20.1.2	Success	21,820
May 5, 2026 13:33	Mohamed Elmahdi Bendimerad	CPPg++10.5.0	Success	78,875+0.18 RP
May 5, 2026 13:31	Mohamed Elmahdi Bendimerad	CPPg++10.5.0	Success	92,633
May 5, 2026 13:25	Mohamed Elmahdi Bendimerad	CPPg++10.5.0	Error
May 5, 2026 13:22	Mohamed Elmahdi Bendimerad	CPPg++10.5.0	Error
May 5, 2026 09:06	flavio87	CPPg++14.2.0	Success	43,194+119.25 RP
May 5, 2026 08:11	M-Rochat	CPPclang++20.1.2	Success	26,885
May 5, 2026 08:00	M-Rochat	CPPg++13.3.0	Success	32,912
May 5, 2026 07:54	M-Rochat	CPPg++13.3.0	Success	35,163
May 5, 2026 07:37	M-Rochat	CPPg++13.3.0	Success	78,293
May 5, 2026 07:33	Victor Mercklé	CPPg++14.2.0	Error
May 5, 2026 01:10	olliecrow	CPPg++13.3.0	Success	7,356
May 5, 2026 01:09	olliecrow	CPPg++13.3.0	Success	7,432
May 5, 2026 00:21	olliecrow	ZIG0.14.0	Error
May 5, 2026 00:21	olliecrow	ZIG0.14.0	Success	5,940
May 5, 2026 00:07	olliecrow	CPPg++13.3.0	Success	7,033
May 5, 2026 00:05	olliecrow	CPPg++13.3.0	Error
May 5, 2026 00:05	olliecrow	ZIG0.14.0	Success	6,140
May 5, 2026 00:05	olliecrow	ZIG0.14.0	Success	6,031
May 5, 2026 00:01	olliecrow	CPPg++14.2.0	Success	6,990
May 4, 2026 23:58	olliecrow	ZIG0.15.1	Success	5,866
May 4, 2026 23:51	olliecrow	CPPg++14.2.0	Success	6,988
May 4, 2026 23:48	olliecrow	CPPg++10.5.0	Success	7,587
May 4, 2026 23:48	olliecrow	CPPclang++18.1.3	Success	15,464
May 4, 2026 23:47	C	CPPg++10.5.0	Success	89,173
May 4, 2026 23:44	olliecrow	ZIG0.14.0	Success	6,103
May 4, 2026 23:39	olliecrow	ZIG0.14.0	Success	6,112
May 4, 2026 23:22	olliecrow	RUSTrust-1.94.0	Success	6,322
May 4, 2026 23:03	Aleksei Shahoika	CPPg++10.5.0	Success	15,511
May 4, 2026 23:02	olliecrow	ZIG0.14.0	Success	6,026
May 4, 2026 23:02	Aleksei Shahoika	CPPg++10.5.0	Success	15,504
May 4, 2026 22:44	olliecrow	RUSTrust-1.94.0	Success	6,312
May 4, 2026 22:17	olliecrow	CSHARP9.0.14	Error
May 4, 2026 21:40	olliecrow	CSHARP9.0.14	Error
May 4, 2026 21:32	M-Rochat	CPPclang++20.1.2	Success	20,539+152.00 RP
May 4, 2026 21:27	olliecrow	CPPclang++18.1.3	Success	15,291
May 4, 2026 21:12	M-Rochat	CPPclang++20.1.2	Success	29,862+6.69 RP
May 4, 2026 21:12	M-Rochat	CPPg++14.2.0	Success	30,471+4.35 RP
May 4, 2026 21:10	M-Rochat	CPPg++10.5.0	Success	36,112
May 4, 2026 21:07	M-Rochat	CPPg++10.5.0	Success	32,906
May 4, 2026 21:02	flavio87	CPPg++10.5.0	Success	89,073+112.27 RP
May 4, 2026 20:59	M-Rochat	CPPg++10.5.0	Success	30,880+323.83 RP
May 4, 2026 14:03	limanjun99	CPPg++14.2.0	Success	4,445
May 4, 2026 13:56	limanjun99	CPPg++14.2.0	Success	4,402
May 4, 2026 13:55	limanjun99	CPPg++14.2.0	Error
May 4, 2026 13:53	limanjun99	CPPg++14.2.0	Success	4,420
May 4, 2026 12:31	caando	CPPg++14.2.0	Error
May 4, 2026 12:27	caando	CPPg++14.2.0	Error
May 4, 2026 12:25	caando	CPPg++14.2.0	Error
May 4, 2026 12:21	limanjun99	CPPg++14.2.0	Success	4,423
May 4, 2026 12:20	limanjun99	CPPg++14.2.0	Success	4,441
May 4, 2026 12:15	limanjun99	CPPg++14.2.0	Success	4,411
May 4, 2026 12:09	Oleg Skinderev	CPPg++14.2.0	Success	62,434+6.38 RP
May 4, 2026 12:08	limanjun99	CPPg++14.2.0	Error
May 4, 2026 11:32	limanjun99	CPPg++14.2.0	Success	4,523
May 4, 2026 11:26	limanjun99	CPPg++14.2.0	Success	4,517
May 4, 2026 11:22	limanjun99	CPPg++14.2.0	Success	4,516
May 4, 2026 11:06	limanjun99	CPPg++14.2.0	Success	4,394+37.19 RP
May 4, 2026 10:29	limanjun99	CPPg++14.2.0	Success	4,467+97.31 RP
May 4, 2026 10:24	limanjun99	CPPg++14.2.0	Success	4,713
May 4, 2026 10:20	limanjun99	CPPg++14.2.0	Success	4,696
May 4, 2026 10:12	limanjun99	CPPg++14.2.0	Success	4,710
May 4, 2026 10:04	limanjun99	CPPg++14.2.0	Success	4,711
May 4, 2026 09:51	limanjun99	CPPg++14.2.0	Success	4,670+198.45 RP
May 4, 2026 09:37	limanjun99	CPPg++14.2.0	Success	5,147+16.84 RP
May 4, 2026 07:42	limanjun99	CPPg++14.2.0	Error
May 4, 2026 07:41	limanjun99	CPPg++14.2.0	Error

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