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
Jun 10, 2026 13:06	Victor Mercklé	CPPg++14.2.0	Success	8,262
Jun 10, 2026 13:01	Victor Mercklé	CPPg++14.2.0	Success	4,618
Jun 10, 2026 12:56	Victor Mercklé	CPPg++14.2.0	Success	9,035
Jun 10, 2026 12:51	Victor Mercklé	CPPg++14.2.0	Success	5,715
Jun 10, 2026 12:39	Victor Mercklé	CPPg++14.2.0	Success	4,536
Jun 10, 2026 12:34	Victor Mercklé	CPPg++14.2.0	Success	4,632
Jun 10, 2026 12:29	Victor Mercklé	CPPg++14.2.0	Success	5,432
Jun 10, 2026 12:24	Victor Mercklé	CPPg++14.2.0	Success	12,395
Jun 10, 2026 12:19	Victor Mercklé	CPPg++14.2.0	Success	5,306
Jun 10, 2026 12:15	Victor Mercklé	CPPg++14.2.0	Success	13,985
Jun 10, 2026 12:09	Victor Mercklé	CPPg++14.2.0	Success	16,114
Jun 10, 2026 12:03	Victor Mercklé	CPPg++14.2.0	Success	14,334
Jun 10, 2026 11:56	Victor Mercklé	CPPg++14.2.0	Success	6,830
Jun 10, 2026 11:41	Victor Mercklé	CPPg++14.2.0	Success	4,531+0.49 RP
Jun 10, 2026 11:36	Victor Mercklé	CPPg++14.2.0	Success	4,567
Jun 10, 2026 11:31	Victor Mercklé	CPPg++14.2.0	Success	5,221
Jun 10, 2026 11:26	Victor Mercklé	CPPg++14.2.0	Success	4,725
Jun 10, 2026 11:20	Victor Mercklé	CPPg++14.2.0	Success	4,970
Jun 10, 2026 11:14	Victor Mercklé	CPPg++14.2.0	Success	4,532+3.40 RP
Jun 10, 2026 11:00	Victor Mercklé	CPPg++14.2.0	Success	5,507
Jun 10, 2026 07:31	Victor Mercklé	CSHARP10.0.7	Success	4,911
Jun 10, 2026 07:20	Victor Mercklé	CSHARP10.0.7	Success	4,910
Jun 10, 2026 07:13	Victor Mercklé	CSHARP10.0.7	Success	10,264
Jun 10, 2026 07:09	Victor Mercklé	CSHARP10.0.7	Error
Jun 10, 2026 07:00	Victor Mercklé	CSHARP10.0.7	Success	4,908
Jun 10, 2026 06:54	Victor Mercklé	CSHARP10.0.7	Success	4,902+797.75 RP
Jun 10, 2026 02:46	Victor Mercklé	GOgo1.26.2	Success	4,912
Jun 10, 2026 02:41	Victor Mercklé	GOgo1.26.2	Success	4,885+4.60 RP
Jun 10, 2026 02:31	Victor Mercklé	GOgo1.26.2	Success	4,896+2.50 RP
Jun 10, 2026 02:26	Victor Mercklé	GOgo1.26.2	Success	5,272
Jun 10, 2026 02:16	Victor Mercklé	GOgo1.26.2	Success	4,902+337.28 RP
Jun 10, 2026 02:10	Victor Mercklé	GOgo1.26.2	Error
Jun 10, 2026 02:06	Victor Mercklé	GOgo1.26.2	Error
Jun 9, 2026 08:18	LetterC67	CPPg++10.5.0	Success	89,089+112.25 RP
Jun 8, 2026 20:09	Victor Mercklé	CPPg++14.2.0	Success	4,539+13.99 RP
Jun 8, 2026 20:04	Victor Mercklé	CPPg++14.2.0	Success	4,605
Jun 8, 2026 19:59	Victor Mercklé	CPPg++14.2.0	Success	4,606
Jun 8, 2026 19:47	Victor Mercklé	CPPg++14.2.0	Success	28,654
Jun 8, 2026 19:36	Victor Mercklé	CPPg++14.2.0	Success	42,942
Jun 8, 2026 17:45	Jora Babayan	CPPg++10.5.0	Success	35,388+83.65 RP
Jun 8, 2026 12:09	chereshnya123	CPPg++14.2.0	Success	57,950+1.63 RP
Jun 8, 2026 12:07	chereshnya123	CPPg++14.2.0	Success	58,527
Jun 8, 2026 12:05	chereshnya123	CPPg++14.2.0	Success	58,544
Jun 8, 2026 12:04	chereshnya123	CPPg++14.2.0	Success	58,502+0.06 RP
Jun 8, 2026 12:02	chereshnya123	CPPg++14.2.0	Error
Jun 8, 2026 12:01	chereshnya123	CPPg++14.2.0	Error
Jun 8, 2026 10:54	Kai Hirota	GOgo1.26.2	Success	273,935+36.51 RP
Jun 8, 2026 10:02	chereshnya123	CPPg++14.2.0	Success	58,523+0.20 RP
Jun 8, 2026 09:09	chereshnya123	CPPg++10.5.0	Success	61,314
Jun 8, 2026 08:57	chereshnya123	CPPg++14.2.0	Success	58,593+0.07 RP
Jun 8, 2026 08:55	chereshnya123	CPPg++14.2.0	Success	62,777
Jun 8, 2026 08:49	chereshnya123	CPPg++10.5.0	Error
Jun 8, 2026 08:32	chereshnya123	CPPg++10.5.0	Success	61,640
Jun 8, 2026 08:25	chereshnya123	CPPg++10.5.0	Success	61,629
Jun 8, 2026 01:55	Raphael Ademola-Shoneye	CPPg++10.5.0	Success	88,965+112.40 RP
Jun 7, 2026 19:06	Victor Mercklé	CPPg++14.2.0	Success	4,878
Jun 7, 2026 19:01	Victor Mercklé	CPPg++14.2.0	Success	12,163
Jun 7, 2026 18:56	Victor Mercklé	CPPg++14.2.0	Success	7,703
Jun 7, 2026 18:51	Victor Mercklé	CPPg++14.2.0	Success	6,072
Jun 7, 2026 18:46	Victor Mercklé	CPPg++14.2.0	Success	9,220
Jun 6, 2026 19:10	merripium	CPPg++10.5.0	Success	63,530+17.67 RP
Jun 6, 2026 19:04	merripium	CPPg++10.5.0	Success	80,283
Jun 6, 2026 15:43	merripium	CPPg++10.5.0	Success	71,564+0.14 RP
Jun 6, 2026 15:41	chereshnya123	CPPclang++18.1.3	Success	64,587
Jun 6, 2026 15:41	merripium	CPPg++10.5.0	Success	71,890
Jun 6, 2026 15:40	merripium	CPPg++10.5.0	Success	73,930
Jun 6, 2026 15:39	chereshnya123	CPPclang++20.1.2	Success	64,455
Jun 6, 2026 15:37	chereshnya123	CPPg++10.5.0	Success	58,618+1.74 RP
Jun 6, 2026 15:36	merripium	CPPg++10.5.0	Success	71,637+0.20 RP
Jun 6, 2026 15:35	merripium	CPPg++10.5.0	Success	77,124
Jun 6, 2026 15:34	chereshnya123	CPPg++10.5.0	Success	65,202
Jun 6, 2026 15:12	merripium	CPPg++10.5.0	Success	71,741+0.02 RP
Jun 6, 2026 15:08	merripium	CPPg++10.5.0	Success	71,750+16.41 RP
Jun 6, 2026 15:04	merripium	CPPg++14.2.0	Success	81,325+10.68 RP
Jun 5, 2026 11:49	chereshnya123	CPPg++10.5.0	Success	65,903
Jun 5, 2026 11:28	chereshnya123	CPPg++10.5.0	Success	59,221+12.11 RP
Jun 5, 2026 11:21	chereshnya123	CPPg++10.5.0	Success	63,798+7.08 RP
Jun 5, 2026 11:20	chereshnya123	CPPg++10.5.0	Success	69,470
Jun 5, 2026 11:18	chereshnya123	CPPg++10.5.0	Success	72,379
Jun 5, 2026 11:18	chereshnya123	CPPg++10.5.0	Success	66,818+34.91 RP
Jun 5, 2026 11:01	chereshnya123	CPPg++10.5.0	Success	158,154
Jun 5, 2026 10:53	chereshnya123	CPPg++10.5.0	Success	157,892
Jun 5, 2026 10:42	chereshnya123	CPPg++10.5.0	Success	245,444
Jun 5, 2026 09:18	chereshnya123	CPPg++10.5.0	Success	2,072,444
Jun 5, 2026 09:12	chereshnya123	CPPg++10.5.0	Success	87,145+2.54 RP
Jun 5, 2026 09:09	chereshnya123	CPPg++10.5.0	Error
Jun 5, 2026 09:07	chereshnya123	CPPg++10.5.0	Success	89,120+112.21 RP
Jun 1, 2026 21:59	Maya Rebholz	CPPg++10.5.0	Success	7,420
Jun 1, 2026 21:42	Maya Rebholz	CPPg++10.5.0	Success	7,108
Jun 1, 2026 21:01	Maya Rebholz	CPPg++10.5.0	Success	5,259+2.53 RP
Jun 1, 2026 13:52	Jora Babayan	CPPg++10.5.0	Success	57,415
Jun 1, 2026 07:54	merripium	CPPg++10.5.0	Success	89,058+112.29 RP
May 31, 2026 20:47	Jora Babayan	CPPg++10.5.0	Success	50,269+39.34 RP
May 31, 2026 20:28	Jora Babayan	CPPg++10.5.0	Success	62,659+47.24 RP
May 31, 2026 19:42	Jora Babayan	CPPg++10.5.0	Success	89,004+112.35 RP
May 31, 2026 16:42	Sergey Kintsel	RUSTrust-1.95.0	Success	395,464+0.57 RP
May 31, 2026 16:38	Sergey Kintsel	RUSTrust-1.96.0	Success	404,625+24.71 RP
May 28, 2026 13:00	Innokentii Meleshchenko	RUSTrust-1.95.0	Success	249,596
May 28, 2026 12:51	Innokentii Meleshchenko	RUSTrust-1.95.0	Success	237,693+0.57 RP
May 28, 2026 12:43	Innokentii Meleshchenko	RUSTrust-1.95.0	Success	240,937+5.36 RP

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