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
May 13, 2026 02:00	Victor Mercklé	CPPg++14.2.0	Error
May 13, 2026 00:37	Victor Mercklé	CPPg++14.2.0	Success	9,369
May 13, 2026 00:35	Victor Mercklé	CPPg++14.2.0	Success	9,367
May 12, 2026 19:18	Victor Mercklé	CPPg++14.2.0	Success	9,367
May 12, 2026 18:45	Victor Mercklé	CPPg++14.2.0	Success	9,363+8.60 RP
May 12, 2026 17:51	Victor Mercklé	CPPg++14.2.0	Success	9,441
May 12, 2026 16:52	Josu San Martin	CPPclang++15.0.7	Error
May 12, 2026 16:14	Victor Mercklé	CPPg++14.2.0	Success	9,439+1.46 RP
May 12, 2026 15:52	Victor Mercklé	CPPg++14.2.0	Success	9,452+67.98 RP
May 12, 2026 11:56	Victor Mercklé	CPPg++14.2.0	Success	10,101
May 12, 2026 11:53	Josu San Martin	CPPclang++15.0.7	Success	4,160
May 12, 2026 11:41	Victor Mercklé	CPPg++14.2.0	Success	10,101+0.29 RP
May 12, 2026 11:02	Victor Mercklé	CPPg++14.2.0	Success	10,104+0.29 RP
May 12, 2026 10:37	Josu San Martin	CPPclang++20.1.2	Error
May 12, 2026 10:37	Victor Mercklé	CPPg++14.2.0	Success	10,112
May 12, 2026 10:10	Victor Mercklé	CPPg++14.2.0	Success	10,112
May 12, 2026 08:57	Josu San Martin	CPPclang++15.0.7	Error
May 12, 2026 05:46	Josu San Martin	CPPclang++15.0.7	Error
May 12, 2026 04:46	Josu San Martin	RUSTrust-1.95.0	Success	4,683+241.44 RP
May 12, 2026 04:44	Josu San Martin	RUSTrust-1.95.0	Error
May 12, 2026 04:36	Josu San Martin	CPPclang++20.1.2	Error
May 12, 2026 04:25	Josu San Martin	CPPclang++15.0.7	Success	3,882
May 12, 2026 04:04	Josu San Martin	CPPclang++15.0.7	Error
May 12, 2026 03:56	Josu San Martin	CPPclang++15.0.7	Success	3,885
May 12, 2026 03:17	Josu San Martin	CPPclang++18.1.3	Error
May 12, 2026 03:17	Josu San Martin	CPPclang++19.1.1	Error
May 12, 2026 03:17	cashkaru	CPPg++14.2.0	Success	32,622
May 12, 2026 03:17	cashkaru	CPPg++10.5.0	Success	31,470+63.98 RP
May 12, 2026 03:16	Josu San Martin	CPPclang++15.0.7	Error
May 12, 2026 03:15	Josu San Martin	CPPclang++20.1.2	Error
May 12, 2026 03:11	cashkaru	CPPg++10.5.0	Success	39,403+37.85 RP
May 12, 2026 03:06	Josu San Martin	CPPclang++15.0.7	Error
May 12, 2026 02:22	Josu San Martin	CPPclang++15.0.7	Error
May 12, 2026 02:20	Josu San Martin	CPPclang++15.0.7	Success	3,871
May 12, 2026 02:11	Josu San Martin	CPPclang++15.0.7	Error
May 12, 2026 02:09	Josu San Martin	CPPclang++15.0.7	Error
May 12, 2026 02:06	cashkaru	CPPg++14.2.0	Success	46,310+36.33 RP
May 12, 2026 01:18	Victor Mercklé	CPPg++14.2.0	Success	10,110
May 12, 2026 01:02	Josu San Martin	CPPclang++15.0.7	Success	4,115
May 12, 2026 00:58	Josu San Martin	CPPclang++15.0.7	Success	4,222
May 12, 2026 00:54	Josu San Martin	CPPclang++15.0.7	Error
May 12, 2026 00:35	Victor Mercklé	CPPg++14.2.0	Success	10,108
May 12, 2026 00:26	Josu San Martin	CPPclang++15.0.7	Error
May 12, 2026 00:25	Victor Mercklé	CPPg++14.2.0	Success	10,114
May 12, 2026 00:13	Victor Mercklé	CPPg++14.2.0	Success	10,107+12.56 RP
May 12, 2026 00:09	Josu San Martin	CPPclang++20.1.2	Error
May 11, 2026 23:50	Josu San Martin	CPPclang++15.0.7	Error
May 11, 2026 23:34	Josu San Martin	CPPclang++15.0.7	Error
May 11, 2026 22:40	Josu San Martin	CPPclang++15.0.7	Error
May 11, 2026 22:29	Josu San Martin	CPPclang++15.0.7	Error
May 11, 2026 22:29	Victor Mercklé	CPPg++14.2.0	Success	10,249
May 11, 2026 22:08	flavio87	CPPg++14.2.0	Success	7,122+87.96 RP
May 11, 2026 22:04	Josu San Martin	CPPclang++15.0.7	Error
May 11, 2026 21:53	Victor Mercklé	CPPg++14.2.0	Success	10,246
May 11, 2026 21:51	Victor Mercklé	CPPg++14.2.0	Success	10,251
May 11, 2026 21:47	Victor Mercklé	CPPg++14.2.0	Error
May 11, 2026 21:47	Josu San Martin	CPPclang++15.0.7	Error
May 11, 2026 21:35	Josu San Martin	CPPclang++15.0.7	Error
May 11, 2026 21:16	Josu San Martin	CPPclang++15.0.7	Error
May 11, 2026 21:02	Victor Mercklé	CPPg++14.2.0	Success	10,237+0.10 RP
May 11, 2026 20:48	Josu San Martin	CPPclang++15.0.7	Error
May 11, 2026 20:45	Victor Mercklé	CPPg++14.2.0	Success	10,241
May 11, 2026 20:39	TudyM	CPPg++10.5.0	Success	34,200
May 11, 2026 20:35	Victor Mercklé	CPPg++14.2.0	Error
May 11, 2026 20:25	Victor Mercklé	CPPg++14.2.0	Success	10,238+0.67 RP
May 11, 2026 20:10	TudyM	CPPg++10.5.0	Success	30,464+29.62 RP
May 11, 2026 19:43	TudyM	CPPg++10.5.0	Success	35,644
May 11, 2026 18:10	Josu San Martin	CPPclang++15.0.7	Error
May 11, 2026 18:09	Josu San Martin	CPPclang++15.0.7	Error
May 11, 2026 18:08	Josu San Martin	CPPclang++15.0.7	Error
May 11, 2026 18:07	Josu San Martin	CPPclang++15.0.7	Error
May 11, 2026 18:06	Josu San Martin	CPPclang++15.0.7	Error
May 11, 2026 18:05	Josu San Martin	CPPclang++15.0.7	Error
May 11, 2026 18:03	Josu San Martin	CPPclang++15.0.7	Error
May 11, 2026 18:02	Josu San Martin	CPPclang++15.0.7	Success	3,886
May 11, 2026 18:00	Josu San Martin	CPPclang++15.0.7	Error
May 11, 2026 17:35	Benjamin Rogers-Newsome	RUSTrust-1.95.0	Success	1,210,331+8.26 RP
May 11, 2026 17:29	Benjamin Rogers-Newsome	RUSTrust-1.95.0	Error
May 11, 2026 17:27	Benjamin Rogers-Newsome	RUSTrust-1.95.0	Error
May 11, 2026 17:14	Victor Mercklé	CPPg++14.2.0	Error
May 11, 2026 17:08	Benjamin Rogers-Newsome	RUSTrust-1.95.0	Error
May 11, 2026 16:54	Victor Mercklé	CPPg++14.2.0	Success	10,246
May 11, 2026 16:48	Victor Mercklé	CPPg++14.2.0	Success	10,247
May 11, 2026 16:27	Josu San Martin	CPPclang++15.0.7	Success	3,886
May 11, 2026 16:26	Josu San Martin	CPPclang++15.0.7	Error
May 11, 2026 16:25	Josu San Martin	CPPclang++15.0.7	Success	3,869
May 11, 2026 16:23	Josu San Martin	CPPclang++15.0.7	Error
May 11, 2026 16:20	Josu San Martin	CPPclang++15.0.7	Error
May 11, 2026 16:19	Josu San Martin	CPPclang++15.0.7	Error
May 11, 2026 16:18	Josu San Martin	CPPclang++15.0.7	Success	3,915
May 11, 2026 16:17	Josu San Martin	CPPclang++15.0.7	Error
May 11, 2026 16:12	Victor Mercklé	CPPg++14.2.0	Success	10,245
May 11, 2026 16:10	wn	CPPg++13.3.0	Success	3,308
May 11, 2026 16:10	wn	CPPclang++18.1.3	Error
May 11, 2026 15:52	wn	CPPg++13.3.0	Success	3,294
May 11, 2026 15:51	wn	CPPg++13.3.0	Success	3,305
May 11, 2026 15:50	wn	CPPg++13.3.0	Success	3,296
May 11, 2026 15:48	wn	CPPg++14.2.0	Success	3,306
May 11, 2026 15:47	wn	CPPg++14.2.0	Success	3,310
May 11, 2026 15:45	wn	CPPg++14.2.0	Success	3,328

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