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
Dec 21, 2025 13:15	Mark R Best	RUSTrust-1.92.0	Success	106,018
Dec 21, 2025 11:00	Mark R Best	RUSTrust-1.92.0	Success	89,402
Dec 21, 2025 10:54	Mark R Best	RUSTrust-1.92.0	Success	59,925
Dec 21, 2025 10:53	Mark R Best	RUSTrust-1.92.0	Error
Dec 21, 2025 10:49	Mark R Best	RUSTrust-1.92.0	Error
Dec 21, 2025 10:46	Mark R Best	RUSTrust-1.92.0	Success	59,922+42.75 RP
Dec 21, 2025 10:40	Mark R Best	RUSTrust-1.92.0	Success	80,559+7.73 RP
Dec 21, 2025 10:36	Mark R Best	RUSTrust-1.92.0	Success	85,911+116.40 RP
Dec 21, 2025 10:29	Ng Song Guan	CPPg++13.3.0	Success	81,593
Dec 21, 2025 00:33	jhallgreen	CPPg++13.3.0	Error
Dec 21, 2025 00:32	jhallgreen	RUSTrust-1.92.0	Success	371,992+26.88 RP
Dec 21, 2025 00:32	jhallgreen	CPPg++13.3.0	Error
Dec 20, 2025 12:16	Ahmed Mhedhbi	CPPg++13.3.0	Error
Dec 20, 2025 11:24	idatsy	RUSTrust-1.92.0	Success	50,292
Dec 20, 2025 11:00	idatsy	RUSTrust-1.92.0	Success	41,682
Dec 19, 2025 20:56	Zhalgas Khassenov	GOgo1.25.5	Success	1,928,674
Dec 19, 2025 20:52	Zhalgas Khassenov	GOgo1.25.5	Error
Dec 19, 2025 20:48	idatsy	RUSTrust-1.92.0	Success	34,357+31.93 RP
Dec 19, 2025 20:10	Zhalgas Khassenov	GOgo1.25.5	Success	1,673,541
Dec 19, 2025 20:07	Zhalgas Khassenov	GOgo1.25.5	Success	1,829,764
Dec 19, 2025 19:55	idatsy	RUSTrust-1.92.0	Success	38,590+34.29 RP
Dec 19, 2025 19:51	Zhalgas Khassenov	GOgo1.25.5	Success	1,660,917+0.69 RP
Dec 19, 2025 19:45	Zhalgas Khassenov	GOgo1.25.5	Success	1,876,018+5.33 RP
Dec 19, 2025 19:27	idatsy	RUSTrust-1.92.0	Success	59,459
Dec 19, 2025 18:43	Josu San Martin	RUSTrust-1.92.0	Success	43,451+13.39 RP
Dec 19, 2025 18:41	idatsy	RUSTrust-1.92.0	Success	44,475+53.12 RP
Dec 19, 2025 18:40	Josu San Martin	RUSTrust-1.92.0	Error
Dec 19, 2025 18:39	idatsy	RUSTrust-1.92.0	Error
Dec 19, 2025 18:07	Josu San Martin	RUSTrust-1.92.0	Error
Dec 19, 2025 18:06	Josu San Martin	RUSTrust-1.92.0	Error
Dec 19, 2025 17:55	idatsy	RUSTrust-1.92.0	Success	69,304
Dec 19, 2025 17:51	idatsy	RUSTrust-1.92.0	Success	58,233+171.72 RP
Dec 19, 2025 16:54	Josu San Martin	RUSTrust-1.92.0	Error
Dec 19, 2025 16:47	Josu San Martin	RUSTrust-1.92.0	Success	79,016
Dec 19, 2025 16:47	Josu San Martin	RUSTrust-1.92.0	Success	73,324
Dec 19, 2025 16:42	Josu San Martin	RUSTrust-1.92.0	Error
Dec 19, 2025 16:33	Josu San Martin	RUSTrust-1.92.0	Success	46,135+18.75 RP
Dec 19, 2025 16:24	Josu San Martin	RUSTrust-1.92.0	Success	65,567
Dec 19, 2025 16:22	Josu San Martin	RUSTrust-1.92.0	Success	80,791
Dec 19, 2025 16:21	Josu San Martin	RUSTrust-1.92.0	Success	60,942
Dec 19, 2025 16:20	Josu San Martin	RUSTrust-1.92.0	Success	83,267
Dec 19, 2025 16:09	Josu San Martin	RUSTrust-1.92.0	Success	64,635
Dec 19, 2025 16:04	Josu San Martin	RUSTrust-1.92.0	Success	66,049
Dec 19, 2025 15:29	Josu San Martin	RUSTrust-1.92.0	Success	50,504+0.42 RP
Dec 19, 2025 15:26	Josu San Martin	RUSTrust-1.92.0	Success	51,287
Dec 19, 2025 15:23	Josu San Martin	RUSTrust-1.92.0	Success	65,650
Dec 19, 2025 15:21	Josu San Martin	RUSTrust-1.92.0	Success	66,227
Dec 19, 2025 15:19	Josu San Martin	RUSTrust-1.92.0	Success	58,654
Dec 19, 2025 15:12	Josu San Martin	RUSTrust-1.92.0	Success	50,612+1.88 RP
Dec 19, 2025 15:11	Josu San Martin	RUSTrust-1.92.0	Error
Dec 19, 2025 15:10	Josu San Martin	RUSTrust-1.92.0	Success	51,097+23.60 RP
Dec 19, 2025 15:09	Josu San Martin	RUSTrust-1.92.0	Success	58,102+172.11 RP
Dec 17, 2025 22:39	Leon Zhao	CPPg++13.3.0	Success	11,637
Dec 17, 2025 11:06	ajccosta	CPPg++13.3.0	Success	2,066,048+4.84 RP
Dec 17, 2025 07:41	warship	CPPclang++18.1.3	Success	58,977
Dec 17, 2025 07:38	warship	CPPclang++18.1.3	Success	64,105
Dec 17, 2025 07:32	warship	CPPclang++18.1.3	Success	62,392
Dec 17, 2025 07:31	warship	CPPclang++18.1.3	Success	56,376
Dec 17, 2025 07:30	warship	CPPclang++18.1.3	Success	58,902
Dec 17, 2025 07:25	warship	CPPclang++18.1.3	Success	58,806
Dec 16, 2025 06:30	Pavitra Golchha	RUSTrust-1.92.0	Success	106,076+0.03 RP
Dec 16, 2025 06:24	Pavitra Golchha	RUSTrust-1.92.0	Success	106,108+24.01 RP
Dec 16, 2025 03:27	Ahmed Mhedhbi	CPPg++13.3.0	Success	77,279
Dec 16, 2025 03:25	Ahmed Mhedhbi	CPPg++13.3.0	Error
Dec 16, 2025 03:15	Ahmed Mhedhbi	CPPg++13.3.0	Success	77,285
Dec 16, 2025 03:07	Ahmed Mhedhbi	CPPg++13.3.0	Error
Dec 16, 2025 03:05	Ahmed Mhedhbi	CPPg++13.3.0	Success	52,101+1.15 RP
Dec 16, 2025 02:59	Ahmed Mhedhbi	CPPg++13.3.0	Error
Dec 15, 2025 16:40	Aman \| अमन	CPPg++13.3.0	Success	2,021,077+4.95 RP
Dec 15, 2025 16:15	Andrei	CSHARP9.0.11	Success	51,251
Dec 15, 2025 16:02	Andrei	CSHARP9.0.11	Success	58,651
Dec 15, 2025 15:57	Andrei	CSHARP9.0.11	Error
Dec 15, 2025 15:51	Andrei	CSHARP9.0.11	Success	51,236
Dec 15, 2025 15:47	Andrei	CSHARP9.0.11	Success	51,215+6.39 RP
Dec 15, 2025 15:41	Andrei	CSHARP9.0.11	Success	58,639
Dec 15, 2025 15:38	Andrei	CSHARP9.0.11	Success	58,589
Dec 15, 2025 15:29	Andrei	CSHARP9.0.11	Success	52,948+18.07 RP
Dec 15, 2025 15:24	Andrei	CSHARP9.0.11	Success	62,573
Dec 15, 2025 15:18	Andrei	CSHARP9.0.11	Success	58,550+13.75 RP
Dec 15, 2025 15:14	Andrei	CSHARP9.0.11	Success	63,675+21.90 RP
Dec 15, 2025 14:32	Andrei	CSHARP9.0.11	Success	79,715
Dec 15, 2025 14:29	Andrei	CSHARP9.0.11	Error
Dec 15, 2025 14:24	Jeongbong Seo	CPPg++13.3.0	Success	67,927
Dec 15, 2025 14:17	Andrei	CSHARP9.0.11	Success	76,604
Dec 15, 2025 14:12	Andrei	CSHARP9.0.11	Error
Dec 15, 2025 13:58	Andrei	CSHARP9.0.11	Success	85,063
Dec 15, 2025 13:57	Andrei	CSHARP9.0.11	Success	84,077
Dec 15, 2025 13:55	Andrei	CSHARP9.0.11	Success	82,923
Dec 15, 2025 13:53	Andrei	CSHARP9.0.11	Success	82,624
Dec 15, 2025 13:51	Andrei	CSHARP9.0.11	Success	83,307
Dec 15, 2025 13:47	Andrei	CSHARP9.0.11	Success	86,492
Dec 15, 2025 13:46	Andrei	CSHARP9.0.11	Success	101,901
Dec 15, 2025 13:43	Andrei	CSHARP9.0.11	Success	101,984
Dec 15, 2025 13:37	Andrei	CSHARP9.0.11	Success	87,889
Dec 15, 2025 13:34	Andrei	CSHARP9.0.11	Success	87,857
Dec 15, 2025 13:32	Pavitra Golchha	RUSTrust-1.92.0	Success	142,764
Dec 15, 2025 13:32	Andrei	CSHARP9.0.11	Success	86,024
Dec 15, 2025 13:28	Andrei	CSHARP9.0.11	Success	82,377
Dec 15, 2025 13:26	Andrei	CSHARP9.0.11	Success	82,269
Dec 15, 2025 13:16	Pavitra Golchha	RUSTrust-1.92.0	Success	142,381+6.88 RP

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