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
Dec 22, 2025 14:45	Mark R Best	RUSTrust-1.92.0	Success	88,890
Dec 22, 2025 14:34	Mark R Best	RUSTrust-1.92.0	Error
Dec 22, 2025 14:31	Mark R Best	RUSTrust-1.92.0	Success	101,938
Dec 22, 2025 14:28	Mark R Best	RUSTrust-1.92.0	Error
Dec 22, 2025 14:24	Mark R Best	RUSTrust-1.92.0	Error
Dec 22, 2025 14:21	Mark R Best	RUSTrust-1.92.0	Error
Dec 22, 2025 10:53	Rajarshi Basu	CPPg++13.3.0	Error
Dec 22, 2025 04:34	Josu San Martin	RUSTrust-1.92.0	Success	36,253
Dec 22, 2025 04:34	Josu San Martin	CPPclang++18.1.3	Success	34,859+10.33 RP
Dec 22, 2025 04:33	Josu San Martin	CPPg++13.3.0	Success	37,112
Dec 22, 2025 04:33	Josu San Martin	CPPclang++18.1.3	Success	36,161+0.50 RP
Dec 22, 2025 04:33	Josu San Martin	CPPclang++18.1.3	Success	36,709
Dec 22, 2025 04:32	Josu San Martin	CPPclang++18.1.3	Error
Dec 22, 2025 04:29	Josu San Martin	RUSTrust-1.92.0	Success	45,020
Dec 22, 2025 04:24	Josu San Martin	CPPclang++18.1.3	Success	36,596
Dec 22, 2025 04:23	Josu San Martin	CPPclang++18.1.3	Success	36,227+7.52 RP
Dec 22, 2025 04:17	Josu San Martin	CPPclang++18.1.3	Success	37,242+9.70 RP
Dec 22, 2025 04:17	Josu San Martin	CPPg++13.3.0	Success	40,974
Dec 22, 2025 04:17	Josu San Martin	CPPg++13.3.0	Success	42,789
Dec 22, 2025 04:16	Josu San Martin	CPPg++13.3.0	Error
Dec 22, 2025 04:16	Josu San Martin	CPPg++13.3.0	Success	42,279
Dec 22, 2025 04:00	Josu San Martin	CPPg++13.3.0	Success	74,669
Dec 22, 2025 04:00	Josu San Martin	CPPg++13.3.0	Error
Dec 22, 2025 04:00	Josu San Martin	CPPg++13.3.0	Success	38,638+19.08 RP
Dec 22, 2025 04:00	Josu San Martin	CPPg++13.3.0	Error
Dec 22, 2025 03:54	Josu San Martin	CPPg++13.3.0	Success	55,777
Dec 22, 2025 03:53	Josu San Martin	CPPg++13.3.0	Success	55,729
Dec 22, 2025 03:53	Josu San Martin	CPPg++13.3.0	Success	44,319
Dec 22, 2025 03:53	Josu San Martin	CPPg++13.3.0	Success	44,830
Dec 22, 2025 03:53	Josu San Martin	CPPg++13.3.0	Success	47,775
Dec 22, 2025 03:33	Josu San Martin	CPPg++13.3.0	Success	43,355
Dec 22, 2025 03:33	Josu San Martin	CPPg++13.3.0	Success	42,852
Dec 22, 2025 03:33	Josu San Martin	CPPg++13.3.0	Error
Dec 22, 2025 03:33	Josu San Martin	CPPg++13.3.0	Success	54,078
Dec 22, 2025 03:33	Josu San Martin	CPPg++13.3.0	Success	43,546
Dec 22, 2025 03:30	Josu San Martin	CPPg++13.3.0	Success	42,127
Dec 22, 2025 03:30	Josu San Martin	CPPg++13.3.0	Success	59,004
Dec 22, 2025 03:30	Josu San Martin	CPPg++13.3.0	Success	74,538
Dec 22, 2025 03:30	Josu San Martin	CPPg++13.3.0	Success	70,626
Dec 22, 2025 02:57	Josu San Martin	CPPg++13.3.0	Success	46,621
Dec 22, 2025 02:47	Josu San Martin	CPPg++13.3.0	Success	43,616
Dec 22, 2025 02:47	Josu San Martin	CPPg++13.3.0	Success	43,993
Dec 22, 2025 02:39	Josu San Martin	CPPg++13.3.0	Success	48,702
Dec 22, 2025 02:32	Josu San Martin	RUSTrust-1.92.0	Success	41,714+9.58 RP
Dec 21, 2025 17:05	jhallgreen	CPPg++13.3.0	Error
Dec 21, 2025 17:05	jhallgreen	CPPg++13.3.0	Error
Dec 21, 2025 16:58	jhallgreen	CPPg++13.3.0	Success	54,872+35.86 RP
Dec 21, 2025 16:51	jhallgreen	CPPg++13.3.0	Success	68,316+119.50 RP
Dec 21, 2025 13:18	Mark R Best	RUSTrust-1.92.0	Error
Dec 21, 2025 13:17	Mark R Best	RUSTrust-1.92.0	Success	77,149
Dec 21, 2025 13:16	Mark R Best	RUSTrust-1.92.0	Error
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

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