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 3, 2026 20:05	Josu San Martin	CPPg++14.2.0	Success	10,389
Jul 3, 2026 20:02	Josu San Martin	CPPg++14.2.0	Success	6,896
Jul 3, 2026 19:58	Josu San Martin	CPPg++14.2.0	Success	15,284
Jul 3, 2026 19:55	Josu San Martin	CPPg++14.2.0	Success	14,984
Jul 3, 2026 19:53	Josu San Martin	CPPg++14.2.0	Success	6,604
Jul 3, 2026 19:50	Josu San Martin	CPPg++14.2.0	Success	15,755
Jul 3, 2026 19:47	Josu San Martin	CPPg++14.2.0	Success	10,010
Jul 3, 2026 19:39	Josu San Martin	CPPg++14.2.0	Success	16,156
Jul 3, 2026 19:37	Josu San Martin	CPPg++14.2.0	Success	10,050
Jul 3, 2026 19:32	Josu San Martin	CPPg++14.2.0	Success	6,892
Jul 3, 2026 19:31	Josu San Martin	CPPg++14.2.0	Success	19,046
Jul 3, 2026 19:28	Josu San Martin	CPPg++13.3.0	Success	10,439
Jul 3, 2026 19:24	Josu San Martin	CPPg++14.2.0	Success	6,886
Jul 3, 2026 19:21	Josu San Martin	CPPg++14.2.0	Error
Jul 3, 2026 19:18	Josu San Martin	CPPg++14.2.0	Success	18,529
Jul 3, 2026 19:15	Josu San Martin	CPPg++14.2.0	Success	6,850
Jul 3, 2026 19:07	Josu San Martin	CPPg++14.2.0	Success	6,886
Jul 3, 2026 18:57	Josu San Martin	CPPg++14.2.0	Success	27,600
Jul 3, 2026 18:54	Josu San Martin	CPPg++14.2.0	Success	9,304
Jul 3, 2026 18:50	Josu San Martin	CPPg++14.2.0	Success	9,517
Jul 3, 2026 18:47	Josu San Martin	CPPg++14.2.0	Success	10,931
Jul 3, 2026 18:44	Josu San Martin	CPPg++14.2.0	Success	9,513
Jul 3, 2026 18:39	Josu San Martin	CPPg++14.2.0	Success	34,044
Jul 3, 2026 18:36	Josu San Martin	CPPg++14.2.0	Success	10,213
Jul 3, 2026 18:31	Josu San Martin	CPPg++14.2.0	Success	67,903
Jul 3, 2026 18:28	Josu San Martin	CPPg++14.2.0	Success	9,581
Jul 3, 2026 18:28	Josu San Martin	CPPg++14.2.0	Success	13,299
Jul 3, 2026 18:23	Josu San Martin	CPPg++14.2.0	Error
Jul 3, 2026 18:22	Josu San Martin	CPPg++14.2.0	Success	83,611
Jul 3, 2026 18:19	Josu San Martin	CPPg++14.2.0	Success	9,945
Jul 3, 2026 18:15	Josu San Martin	CPPg++14.2.0	Success	9,804
Jul 3, 2026 18:13	Josu San Martin	CPPg++14.2.0	Success	9,927
Jul 3, 2026 18:09	Josu San Martin	CPPg++14.2.0	Error
Jul 3, 2026 18:04	Josu San Martin	CPPg++14.2.0	Error
Jul 3, 2026 18:00	Joshua Montross	CPPg++10.5.0	Success	35,819+62.29 RP
Jul 3, 2026 17:57	Josu San Martin	CPPg++14.2.0	Success	12,616
Jul 3, 2026 17:56	Josu San Martin	CPPg++14.2.0	Success	11,633
Jul 3, 2026 17:51	Josu San Martin	CPPg++14.2.0	Success	10,602
Jul 3, 2026 17:49	Josu San Martin	CPPg++14.2.0	Success	10,803
Jul 3, 2026 17:43	Josu San Martin	CPPg++14.2.0	Success	11,432
Jul 3, 2026 17:40	Josu San Martin	CPPg++14.2.0	Success	12,779
Jul 3, 2026 17:35	Josu San Martin	CPPg++14.2.0	Success	38,914
Jul 3, 2026 17:32	Josu San Martin	CPPg++14.2.0	Success	21,975
Jul 3, 2026 17:29	Josu San Martin	CPPg++14.2.0	Success	16,021
Jul 3, 2026 17:23	Josu San Martin	CPPg++14.2.0	Success	75,455
Jul 3, 2026 17:21	Josu San Martin	CPPg++14.2.0	Error
Jul 3, 2026 17:20	Josu San Martin	CPPg++14.2.0	Success	12,591
Jul 3, 2026 17:14	Josu San Martin	CPPg++14.2.0	Error
Jul 3, 2026 17:09	Josu San Martin	CPPg++14.2.0	Success	60,520
Jul 3, 2026 17:00	Josu San Martin	CPPg++14.2.0	Success	38,049
Jul 3, 2026 16:58	Josu San Martin	CPPg++14.2.0	Success	51,516
Jul 3, 2026 16:57	Josu San Martin	CPPg++14.2.0	Success	71,601
Jul 3, 2026 16:52	Josu San Martin	CPPg++14.2.0	Success	37,649
Jul 3, 2026 16:51	Josu San Martin	CPPg++14.2.0	Success	37,523
Jul 3, 2026 16:50	Joshua Montross	CPPg++10.5.0	Success	46,107+104.70 RP
Jul 3, 2026 16:46	Josu San Martin	CPPg++14.2.0	Success	58,178
Jul 3, 2026 16:23	flarnexx	CPPg++10.5.0	Success	89,141+112.18 RP
Jul 3, 2026 13:26	Alexander Stanovoy	CPPg++10.5.0	Error
Jul 3, 2026 13:20	Alexander Stanovoy	CPPg++10.5.0	Success	60,712+160.79 RP
Jul 3, 2026 13:14	Alexander Stanovoy	CPPclang++20.1.2	Error
Jul 3, 2026 08:25	Alexander Stanovoy	RUSTrust-1.96.0	Success	2,548,911+0.15 RP
Jul 3, 2026 04:25	Joshua Montross	CPPg++10.5.0	Success	89,135+112.19 RP
Jul 3, 2026 02:32	f0xeri	CPPg++10.5.0	Success	32,232+21.34 RP
Jul 3, 2026 02:28	f0xeri	CPPclang++20.1.2	Success	34,613+176.81 RP
Jul 3, 2026 02:06	f0xeri	CPPg++10.5.0	Success	89,205+112.10 RP
Jul 2, 2026 18:51	A_Shaman	CPPg++10.5.0	Success	38,104
Jul 2, 2026 18:42	A_Shaman	CPPg++10.5.0	Success	39,150
Jul 2, 2026 18:26	A_Shaman	CPPg++10.5.0	Success	37,085
Jul 2, 2026 18:22	A_Shaman	CPPg++10.5.0	Success	38,468
Jul 2, 2026 18:16	A_Shaman	CPPg++10.5.0	Success	37,874
Jul 2, 2026 18:08	A_Shaman	CPPg++10.5.0	Success	38,642
Jul 2, 2026 18:05	A_Shaman	CPPg++10.5.0	Success	36,397+0.23 RP
Jul 2, 2026 17:56	A_Shaman	CPPg++10.5.0	Success	37,356
Jul 2, 2026 17:45	A_Shaman	CPPg++10.5.0	Success	36,427+4.22 RP
Jul 2, 2026 17:37	A_Shaman	CPPg++10.5.0	Success	38,082
Jul 2, 2026 14:19	Victor Mercklé	CPPg++14.2.0	Error
Jul 2, 2026 12:52	Victor Mercklé	CPPg++14.2.0	Success	4,175
Jul 2, 2026 12:38	Victor Mercklé	CPPg++14.2.0	Success	4,184
Jul 2, 2026 12:21	Victor Mercklé	CPPg++14.2.0	Success	4,322
Jul 2, 2026 11:47	Victor Mercklé	CPPg++14.2.0	Success	4,393
Jul 2, 2026 11:23	Victor Mercklé	CPPg++14.2.0	Success	4,298
Jul 2, 2026 11:12	Victor Mercklé	CPPg++14.2.0	Error
Jul 2, 2026 11:05	Victor Mercklé	CPPg++14.2.0	Error	+6.54 RP
Jul 2, 2026 10:52	Victor Mercklé	CPPg++14.2.0	Success	4,435
Jul 2, 2026 10:29	Victor Mercklé	CPPg++14.2.0	Success	4,276
Jul 2, 2026 10:24	Arseniy Korobenko	RUSTrust-1.96.0	Success	391,745
Jul 2, 2026 10:15	Victor Mercklé	CPPg++14.2.0	Success	4,731
Jul 2, 2026 10:08	Victor Mercklé	CPPg++14.2.0	Error	+24.06 RP
Jul 2, 2026 08:52	Victor Mercklé	CPPg++14.2.0	Success	4,170
Jul 2, 2026 07:27	Victor Mercklé	CPPg++14.2.0	Success	7,739
Jul 2, 2026 07:17	Victor Mercklé	CPPg++14.2.0	Success	4,208
Jul 2, 2026 07:02	Victor Mercklé	CPPg++14.2.0	Success	4,183
Jul 2, 2026 05:29	Victor Mercklé	CPPg++14.2.0	Success	4,160
Jul 2, 2026 04:33	Victor Mercklé	CPPg++14.2.0	Error
Jul 2, 2026 04:24	Victor Mercklé	CPPg++14.2.0	Success	4,156
Jul 2, 2026 03:46	Victor Mercklé	CPPg++14.2.0	Success	4,235
Jul 2, 2026 03:33	Victor Mercklé	CPPg++14.2.0	Success	4,208
Jul 2, 2026 03:02	Victor Mercklé	CPPg++14.2.0	Error	+1.16 RP
Jul 2, 2026 02:47	Victor Mercklé	CPPg++14.2.0	Success	4,244
Jul 2, 2026 02:30	Victor Mercklé	CPPg++14.2.0	Success	4,176

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