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
Feb 28, 2026 19:10	wn	CPPclang++18.1.3	Success	4,680
Feb 28, 2026 09:45	Manu	RUSTrust-1.93.1	Success	89,680
Feb 28, 2026 09:39	Manu	RUSTrust-1.93.1	Success	89,530+84.63 RP
Feb 28, 2026 09:30	Manu	RUSTrust-1.93.1	Success	369,448+27.07 RP
Feb 28, 2026 08:57	Benji White	CPPg++13.3.0	Success	147,829+62.81 RP
Feb 28, 2026 07:54	Benji White	CPPg++13.3.0	Success	2,066,873+4.84 RP
Feb 28, 2026 01:02	c	CPPg++13.3.0	Error
Feb 28, 2026 01:00	c	CPPg++13.3.0	Error
Feb 28, 2026 00:56	c	CPPg++13.3.0	Success	2,020,862+4.95 RP
Feb 27, 2026 22:34	lipapipa	CPPg++13.3.0	Success	5,837
Feb 27, 2026 22:09	lipapipa	CPPg++13.3.0	Error
Feb 27, 2026 21:14	lipapipa	CPPg++13.3.0	Success	5,812+0.59 RP
Feb 27, 2026 21:11	lipapipa	CPPg++13.3.0	Success	5,822
Feb 27, 2026 21:03	defiance	RUSTrust-1.93.1	Success	99,430+73.55 RP
Feb 27, 2026 21:01	defiance	RUSTrust-1.93.1	Success	370,042+27.02 RP
Feb 27, 2026 19:49	lipapipa	CPPg++13.3.0	Success	5,973
Feb 27, 2026 18:58	lipapipa	CPPg++13.3.0	Success	18,762
Feb 27, 2026 18:57	lipapipa	CPPg++13.3.0	Success	28,952
Feb 27, 2026 18:55	lipapipa	CPPg++13.3.0	Error
Feb 27, 2026 13:40	Genos0	CPPg++13.3.0	Success	71,270+0.01 RP
Feb 27, 2026 13:37	Genos0	CPPg++13.3.0	Error
Feb 27, 2026 13:35	Genos0	CPPg++13.3.0	Success	71,307
Feb 27, 2026 13:35	Genos0	CPPg++13.3.0	Success	71,274
Feb 27, 2026 13:34	Genos0	CPPg++13.3.0	Success	71,274+0.10 RP
Feb 27, 2026 13:34	Genos0	CPPg++13.3.0	Success	71,732
Feb 27, 2026 13:33	Genos0	CPPg++13.3.0	Success	72,652
Feb 27, 2026 13:33	Genos0	CPPg++13.3.0	Success	73,893
Feb 27, 2026 13:33	Genos0	CPPg++13.3.0	Success	74,779
Feb 27, 2026 13:33	Genos0	CPPg++13.3.0	Success	76,285
Feb 27, 2026 13:32	Genos0	CPPg++13.3.0	Success	78,467
Feb 27, 2026 13:32	Genos0	CPPg++13.3.0	Success	82,946
Feb 27, 2026 13:30	Genos0	CPPg++13.3.0	Success	71,324+6.98 RP
Feb 27, 2026 08:14	lipapipa	CPPg++13.3.0	Success	5,880
Feb 27, 2026 08:13	lipapipa	CPPg++13.3.0	Success	6,186
Feb 27, 2026 04:29	user76135	CPPg++13.3.0	Success	54,044+10.17 RP
Feb 27, 2026 04:20	user76135	CPPg++13.3.0	Success	72,375
Feb 27, 2026 04:19	user76135	CPPg++13.3.0	Success	57,186+29.38 RP
Feb 27, 2026 04:13	user76135	CPPg++13.3.0	Success	71,476
Feb 27, 2026 04:04	user76135	CPPg++13.3.0	Success	2,066,141
Feb 27, 2026 04:03	user76135	CPPg++13.3.0	Success	68,733+145.49 RP
Feb 26, 2026 21:53	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,210
Feb 26, 2026 21:49	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,842
Feb 26, 2026 21:48	Daniel Mastalerz	CPPclang++18.1.3	Success	5,564
Feb 26, 2026 21:47	Daniel Mastalerz	CPPclang++18.1.3	Success	5,566
Feb 26, 2026 21:46	Daniel Mastalerz	CPPclang++18.1.3	Success	6,740
Feb 26, 2026 21:44	Daniel Mastalerz	CPPclang++18.1.3	Success	5,684
Feb 26, 2026 21:43	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,160
Feb 26, 2026 21:42	Daniel Mastalerz	CPPclang++18.1.3	Success	5,561
Feb 26, 2026 21:42	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,248
Feb 26, 2026 21:37	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,278
Feb 26, 2026 21:36	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,278
Feb 26, 2026 21:35	Daniel Mastalerz	CPPclang++18.1.3	Success	5,401
Feb 26, 2026 21:35	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,520
Feb 26, 2026 21:29	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 26, 2026 21:26	Daniel Mastalerz	CPPclang++18.1.3	Success	5,550
Feb 26, 2026 21:24	Daniel Mastalerz	CPPclang++18.1.3	Success	5,619
Feb 26, 2026 21:21	Daniel Mastalerz	CPPclang++18.1.3	Success	5,626
Feb 26, 2026 21:15	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 26, 2026 20:24	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,157
Feb 26, 2026 20:22	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,163
Feb 26, 2026 20:21	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,162
Feb 26, 2026 15:45	Genos0	CPPg++13.3.0	Success	75,061+0.38 RP
Feb 26, 2026 15:44	Genos0	CPPg++13.3.0	Success	78,935
Feb 26, 2026 15:44	Genos0	CPPg++13.3.0	Success	79,873
Feb 26, 2026 15:43	Genos0	CPPg++13.3.0	Success	75,273+0.91 RP
Feb 26, 2026 15:42	Genos0	CPPg++13.3.0	Success	79,233
Feb 26, 2026 15:41	Genos0	CPPg++13.3.0	Success	87,496
Feb 26, 2026 12:27	Genos0	CPPg++13.3.0	Success	75,829
Feb 26, 2026 12:25	Genos0	CPPg++13.3.0	Success	75,790+127.10 RP
Feb 26, 2026 12:12	Genos0	CPPg++13.3.0	Success	2,066,106
Feb 26, 2026 09:35	lipapipa	CPPg++13.3.0	Success	5,818
Feb 26, 2026 09:35	lipapipa	CPPg++13.3.0	Success	5,884
Feb 26, 2026 09:35	lipapipa	CPPg++13.3.0	Success	5,925
Feb 26, 2026 09:34	lipapipa	CPPg++13.3.0	Success	5,882
Feb 26, 2026 09:31	lipapipa	CPPg++13.3.0	Success	5,859
Feb 26, 2026 09:17	lipapipa	CPPg++13.3.0	Success	5,971
Feb 26, 2026 07:03	Genos0	CPPg++13.3.0	Success	2,066,165
Feb 26, 2026 07:02	Genos0	CPPg++13.3.0	Success	2,067,249+4.84 RP
Feb 26, 2026 02:11	sophia	CPPg++13.3.0	Error
Feb 26, 2026 02:07	sophia	CPPg++13.3.0	Success	40,081+82.56 RP
Feb 26, 2026 02:04	sophia	CPPg++13.3.0	Success	59,904+0.87 RP
Feb 26, 2026 02:02	sophia	CPPg++13.3.0	Success	60,218+15.14 RP
Feb 26, 2026 02:00	sophia	CPPg++13.3.0	Success	66,261+150.92 RP
Feb 25, 2026 20:28	Daniel Mastalerz	CPPclang++18.1.3	Success	5,437
Feb 25, 2026 20:18	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 25, 2026 20:13	Daniel Mastalerz	CPPclang++18.1.3	Success	5,469
Feb 25, 2026 19:50	Daniel Mastalerz	CPPclang++18.1.3	Success	5,487
Feb 25, 2026 19:47	Daniel Mastalerz	CPPclang++18.1.3	Success	6,565
Feb 25, 2026 19:36	Daniel Mastalerz	CPPclang++18.1.3	Success	5,447
Feb 25, 2026 19:36	Daniel Mastalerz	CPPclang++18.1.3	Success	5,644
Feb 25, 2026 19:29	Daniel Mastalerz	CPPclang++18.1.3	Success	5,452
Feb 25, 2026 19:07	Ropi777	CPPg++13.3.0	Error
Feb 25, 2026 19:02	Ropi777	CPPg++13.3.0	Success	72,171+4.80 RP
Feb 25, 2026 18:59	Ropi777	CPPg++13.3.0	Success	75,136
Feb 25, 2026 18:51	Ropi777	CPPg++13.3.0	Success	74,759+128.92 RP
Feb 25, 2026 18:49	Ropi777	CPPg++13.3.0	Error
Feb 25, 2026 18:47	Ropi777	CPPg++13.3.0	Error
Feb 25, 2026 18:36	Ropi777	CPPg++13.3.0	Success	2,066,856+4.84 RP
Feb 24, 2026 22:17	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,137
Feb 24, 2026 22:13	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,521

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