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
Aug 11, 2026 15:39	Victor Mercklé	CPPg++14.2.0	Success	3,901
Aug 11, 2026 15:35	Rabenknecht	CPPg++13.3.0	Error
Aug 11, 2026 15:34	Rabenknecht	CPPg++13.3.0	Success	52,140
Aug 11, 2026 15:31	Rabenknecht	CPPg++14.2.0	Success	52,452
Aug 11, 2026 15:30	Rabenknecht	CPPg++13.3.0	Success	58,171
Aug 11, 2026 14:48	Victor Mercklé	CPPg++14.2.0	Success	3,969
Aug 11, 2026 14:43	Victor Mercklé	CPPg++14.2.0	Success	9,530
Aug 11, 2026 14:32	Victor Mercklé	CPPg++14.2.0	Success	3,976
Aug 11, 2026 14:27	Victor Mercklé	CPPg++14.2.0	Success	4,260
Aug 11, 2026 14:12	Victor Mercklé	CPPg++14.2.0	Success	3,956
Aug 11, 2026 14:07	Victor Mercklé	CPPg++14.2.0	Success	4,385
Aug 11, 2026 14:02	Victor Mercklé	CPPg++14.2.0	Success	3,993
Aug 11, 2026 13:57	Victor Mercklé	CPPg++14.2.0	Success	3,966
Aug 11, 2026 13:46	Victor Mercklé	CPPg++14.2.0	Success	8,179
Aug 11, 2026 13:39	Victor Mercklé	CPPg++14.2.0	Success	63,776
Aug 11, 2026 13:17	Victor Mercklé	CPPg++14.2.0	Success	4,200
Aug 11, 2026 13:12	Victor Mercklé	CPPg++14.2.0	Success	3,852+8.73 RP
Aug 11, 2026 13:07	Victor Mercklé	CPPg++14.2.0	Success	3,877
Aug 11, 2026 13:02	Victor Mercklé	CPPg++14.2.0	Success	3,865+8.01 RP
Aug 11, 2026 12:56	Victor Mercklé	CPPg++14.2.0	Success	3,930
Aug 11, 2026 12:51	Victor Mercklé	CPPg++14.2.0	Success	3,920
Aug 11, 2026 12:44	Victor Mercklé	CPPg++14.2.0	Success	4,609
Aug 11, 2026 12:39	Victor Mercklé	CPPg++14.2.0	Success	3,893
Aug 11, 2026 12:34	Victor Mercklé	CPPg++14.2.0	Success	4,030
Aug 11, 2026 12:29	Victor Mercklé	CPPg++10.5.0	Success	3,909
Aug 11, 2026 12:24	Victor Mercklé	CPPg++14.2.0	Success	3,903
Aug 11, 2026 12:19	Victor Mercklé	CPPg++14.2.0	Success	4,366
Aug 11, 2026 12:04	Victor Mercklé	CPPg++14.2.0	Success	4,540
Aug 11, 2026 11:59	Victor Mercklé	CPPg++14.2.0	Success	3,923
Aug 11, 2026 11:54	Victor Mercklé	CPPg++14.2.0	Success	3,893
Aug 11, 2026 11:49	Victor Mercklé	CPPg++14.2.0	Success	3,887
Aug 11, 2026 11:44	Victor Mercklé	CPPg++13.3.0	Success	3,898
Aug 11, 2026 11:39	Victor Mercklé	CPPclang++20.1.2	Success	4,404
Aug 11, 2026 11:34	Victor Mercklé	CPPg++14.2.0	Success	5,873
Aug 11, 2026 11:31	Rabenknecht	CPPg++13.3.0	Success	51,847+1.85 RP
Aug 11, 2026 11:27	Rabenknecht	CPPg++13.3.0	Success	66,533
Aug 11, 2026 11:25	Rabenknecht	CPPg++13.3.0	Success	52,350+34.78 RP
Aug 11, 2026 11:17	Rabenknecht	CPPg++10.5.0	Success	65,793
Aug 11, 2026 11:16	Rabenknecht	CPPg++10.5.0	Success	64,005+3.23 RP
Aug 11, 2026 10:59	Rabenknecht	CPPg++10.5.0	Success	65,746
Aug 11, 2026 10:56	Rabenknecht	CPPg++10.5.0	Error
Aug 11, 2026 10:41	Rabenknecht	CPPg++10.5.0	Success	65,355+13.59 RP
Aug 11, 2026 10:34	Rabenknecht	CPPg++10.5.0	Error
Aug 11, 2026 10:32	Rabenknecht	CPPg++10.5.0	Success	71,723+11.53 RP
Aug 11, 2026 10:28	Rabenknecht	CPPg++10.5.0	Error
Aug 11, 2026 09:29	Rabenknecht	CPPg++10.5.0	Error
Aug 11, 2026 09:27	Rabenknecht	CPPg++10.5.0	Error
Aug 11, 2026 07:54	Rabenknecht	CPPg++10.5.0	Success	100,379
Aug 11, 2026 07:45	Rabenknecht	CPPg++13.3.0	Success	78,189+127.90 RP
Aug 11, 2026 01:39	Victor Mercklé	CPPg++14.2.0	Success	4,043
Aug 11, 2026 01:32	Victor Mercklé	CPPg++14.2.0	Success	3,988
Aug 11, 2026 01:11	Victor Mercklé	CPPg++14.2.0	Success	3,954
Aug 11, 2026 00:59	Victor Mercklé	CPPg++14.2.0	Success	3,877+6.64 RP
Aug 11, 2026 00:54	Victor Mercklé	CPPg++14.2.0	Success	3,901
Aug 11, 2026 00:49	Victor Mercklé	CPPg++14.2.0	Success	4,078
Aug 11, 2026 00:44	Victor Mercklé	CPPg++14.2.0	Success	3,909
Aug 11, 2026 00:39	Victor Mercklé	CPPg++14.2.0	Success	4,073
Aug 11, 2026 00:34	Victor Mercklé	CPPg++14.2.0	Success	3,887+7.92 RP
Aug 11, 2026 00:20	Victor Mercklé	CPPg++14.2.0	Success	7,255
Aug 11, 2026 00:15	Victor Mercklé	CPPg++14.2.0	Success	3,918
Aug 11, 2026 00:04	Victor Mercklé	CPPg++14.2.0	Success	3,997
Aug 10, 2026 23:56	Victor Mercklé	CPPg++14.2.0	Success	4,443
Aug 10, 2026 23:51	Victor Mercklé	CPPg++14.2.0	Success	3,942
Aug 10, 2026 23:34	Victor Mercklé	CPPg++14.2.0	Success	3,955
Aug 10, 2026 23:28	Victor Mercklé	CPPg++14.2.0	Success	3,899+5.25 RP
Aug 10, 2026 23:23	Victor Mercklé	CPPg++14.2.0	Success	3,927
Aug 10, 2026 21:47	Tony	CPPg++11.5.0	Error
Aug 10, 2026 21:35	Lan Hoang Dao	CPPg++10.5.0	Success	62,604
Aug 10, 2026 21:32	Lan Hoang Dao	CPPg++10.5.0	Success	62,586
Aug 10, 2026 21:29	Lan Hoang Dao	CPPg++10.5.0	Success	62,598
Aug 10, 2026 21:28	Lan Hoang Dao	CPPg++10.5.0	Success	62,608
Aug 10, 2026 21:22	Lan Hoang Dao	CPPg++10.5.0	Success	58,215+30.85 RP
Aug 10, 2026 20:47	Tony	CPPg++11.5.0	Error
Aug 10, 2026 19:04	Lan Hoang Dao	CPPg++10.5.0	Success	70,959+21.27 RP
Aug 10, 2026 19:03	Lan Hoang Dao	CPPg++10.5.0	Success	83,570+19.79 RP
Aug 10, 2026 18:56	Lan Hoang Dao	CPPg++10.5.0	Success	100,526
Aug 10, 2026 18:55	Lan Hoang Dao	CPPg++10.5.0	Success	103,138
Aug 10, 2026 18:53	Lan Hoang Dao	CPPg++10.5.0	Success	102,567
Aug 10, 2026 18:52	Lan Hoang Dao	CPPg++10.5.0	Error
Aug 10, 2026 18:52	Lan Hoang Dao	CPPg++10.5.0	Error
Aug 10, 2026 18:43	Lan Hoang Dao	CPPg++10.5.0	Success	104,721
Aug 10, 2026 18:42	Lan Hoang Dao	CPPg++10.5.0	Error
Aug 10, 2026 18:41	Lan Hoang Dao	CPPg++10.5.0	Error
Aug 10, 2026 18:40	Lan Hoang Dao	CPPg++10.5.0	Error
Aug 10, 2026 18:38	Lan Hoang Dao	CPPg++10.5.0	Success	100,128+52.97 RP
Aug 10, 2026 18:36	Victor Mercklé	CPPg++14.2.0	Success	4,637
Aug 10, 2026 18:33	Lan Hoang Dao	CPPg++10.5.0	Error
Aug 10, 2026 18:30	Lan Hoang Dao	CPPg++10.5.0	Error
Aug 10, 2026 18:30	Victor Mercklé	CPPg++14.2.0	Success	3,942
Aug 10, 2026 18:28	Lan Hoang Dao	CPPg++10.5.0	Error
Aug 10, 2026 18:21	Victor Mercklé	CPPg++14.2.0	Success	3,912
Aug 10, 2026 18:18	Lan Hoang Dao	CPPg++10.5.0	Error
Aug 10, 2026 18:16	Victor Mercklé	CPPg++14.2.0	Success	4,084
Aug 10, 2026 17:59	Victor Mercklé	CPPg++14.2.0	Success	3,925
Aug 10, 2026 17:56	Lan Hoang Dao	CPPg++10.5.0	Success	213,189
Aug 10, 2026 17:51	Victor Mercklé	CPPg++14.2.0	Success	3,907+32.34 RP
Aug 10, 2026 17:41	Lan Hoang Dao	CPPg++10.5.0	Success	213,199+38.28 RP
Aug 10, 2026 17:41	Victor Mercklé	CPPg++14.2.0	Success	3,957+82.78 RP
Aug 10, 2026 17:39	Lan Hoang Dao	CPPg++10.5.0	Error
Aug 10, 2026 17:32	Victor Mercklé	CPPg++14.2.0	Success	5,943

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