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
May 19, 2026 14:57	Victor Mercklé	CPPg++14.2.0	Success	5,931
May 19, 2026 14:43	Victor Mercklé	CPPg++14.2.0	Success	8,279
May 19, 2026 14:34	Victor Mercklé	CPPg++14.2.0	Success	167,062
May 19, 2026 14:29	Victor Mercklé	CPPg++14.2.0	Success	5,757+32.57 RP
May 19, 2026 14:24	Victor Mercklé	CPPg++14.2.0	Success	6,039
May 19, 2026 14:18	Victor Mercklé	CPPg++14.2.0	Success	6,040
May 19, 2026 14:18	M-Rochat	GOgo1.26.2	Success	82,166+5.00 RP
May 19, 2026 14:13	Victor Mercklé	CPPg++14.2.0	Success	6,189
May 19, 2026 14:07	Victor Mercklé	CPPg++14.2.0	Success	6,016
May 19, 2026 14:02	Victor Mercklé	CPPg++14.2.0	Success	6,203
May 19, 2026 13:51	Victor Mercklé	CPPg++14.2.0	Success	5,893
May 19, 2026 13:44	Victor Mercklé	CPPg++14.2.0	Success	5,890
May 19, 2026 13:29	Victor Mercklé	CPPg++14.2.0	Success	5,888
May 19, 2026 13:14	Victor Mercklé	CPPg++14.2.0	Success	5,998
May 19, 2026 13:09	Victor Mercklé	CPPg++14.2.0	Success	5,867+27.16 RP
May 19, 2026 13:04	Victor Mercklé	CPPg++14.2.0	Success	5,962+34.17 RP
May 19, 2026 12:59	Victor Mercklé	CPPg++14.2.0	Success	6,218
May 19, 2026 12:44	Victor Mercklé	CPPg++14.2.0	Success	6,263
May 19, 2026 12:34	Victor Mercklé	CPPg++14.2.0	Error
May 19, 2026 12:29	Victor Mercklé	ZIG0.16.0	Success	53,135
May 19, 2026 12:04	Victor Mercklé	CPPg++14.2.0	Success	6,235
May 19, 2026 11:22	Victor Mercklé	CPPg++14.2.0	Success	6,116
May 19, 2026 11:07	Victor Mercklé	CPPg++14.2.0	Success	6,188
May 19, 2026 10:42	Victor Mercklé	CPPg++14.2.0	Success	6,127
May 19, 2026 10:02	Victor Mercklé	CPPg++14.2.0	Success	6,086+5.38 RP
May 19, 2026 09:48	Victor Mercklé	CPPg++14.2.0	Success	6,151
May 19, 2026 09:27	Victor Mercklé	CPPg++14.2.0	Success	6,106+4.01 RP
May 19, 2026 08:31	poilon	CPPg++13.3.0	Success	14,095
May 19, 2026 08:22	Victor Mercklé	CPPg++14.2.0	Success	6,121+80.92 RP
May 19, 2026 08:05	poilon	CPPg++13.3.0	Success	15,991
May 19, 2026 08:05	poilon	CPPg++13.3.0	Success	15,859
May 19, 2026 08:04	poilon	CPPg++10.5.0	Success	15,998
May 19, 2026 07:47	Victor Mercklé	CPPg++14.2.0	Success	6,440+1.93 RP
May 19, 2026 07:27	Victor Mercklé	CPPg++14.2.0	Success	6,448+65.65 RP
May 19, 2026 07:24	poilon	CPPg++13.3.0	Error
May 19, 2026 07:22	Victor Mercklé	CPPg++14.2.0	Success	7,882
May 19, 2026 07:13	poilon	CPPg++13.3.0	Error
May 19, 2026 06:57	Victor Mercklé	CPPg++14.2.0	Error
May 19, 2026 06:47	Victor Mercklé	CPPg++14.2.0	Success	24,626+5.00 RP
May 19, 2026 06:34	poilon	CPPg++13.3.0	Error
May 19, 2026 06:20	poilon	CPPg++10.5.0	Error
May 19, 2026 06:16	poilon	CPPg++10.5.0	Success	13,806+6.71 RP
May 19, 2026 06:07	poilon	CPPclang++20.1.2	Success	17,206+5.00 RP
May 19, 2026 00:55	Maya Rebholz	CPPg++10.5.0	Success	91,062+5.00 RP
May 18, 2026 23:16	Aleksei Shahoika	CPPclang++18.1.3	Success	11,488+3.92 RP
May 18, 2026 23:15	poilon	CPPg++10.5.0	Success	18,412
May 18, 2026 23:03	Aleksei Shahoika	CPPclang++18.1.3	Success	11,540+39.01 RP
May 18, 2026 22:53	Aleksei Shahoika	CPPg++10.5.0	Success	12,084+29.20 RP
May 18, 2026 22:39	poilon	CPPclang++20.1.2	Success	13,935+717.62 RP
May 18, 2026 21:41	Aleksei Shahoika	CPPclang++18.1.3	Success	13,007
May 18, 2026 21:13	Aleksei Shahoika	CPPclang++18.1.3	Success	12,569
May 18, 2026 21:09	Aleksei Shahoika	CPPclang++18.1.3	Success	12,526+3.81 RP
May 18, 2026 21:04	Aleksei Shahoika	CPPclang++18.1.3	Success	13,753
May 18, 2026 20:59	Aleksei Shahoika	CPPclang++18.1.3	Error
May 18, 2026 20:51	Aleksei Shahoika	CPPclang++18.1.3	Success	12,586+2.14 RP
May 18, 2026 18:59	Victor Mercklé	CPPg++14.2.0	Error
May 18, 2026 18:54	Victor Mercklé	CPPg++14.2.0	Error
May 18, 2026 18:38	Victor Mercklé	CPPg++14.2.0	Error
May 18, 2026 17:55	Victor Mercklé	CPPg++14.2.0	Error
May 18, 2026 17:50	Victor Mercklé	CPPg++14.2.0	Error
May 18, 2026 17:45	Victor Mercklé	CPPg++14.2.0	Error
May 18, 2026 17:40	Victor Mercklé	CPPg++14.2.0	Error
May 18, 2026 17:35	Victor Mercklé	CPPg++14.2.0	Error
May 18, 2026 17:30	Victor Mercklé	CPPg++14.2.0	Error
May 18, 2026 17:25	Victor Mercklé	CPPg++14.2.0	Error
May 18, 2026 17:20	Victor Mercklé	CPPg++14.2.0	Error
May 18, 2026 17:15	Victor Mercklé	CPPg++14.2.0	Error
May 18, 2026 17:10	Victor Mercklé	CPPg++14.2.0	Error
May 18, 2026 17:05	Victor Mercklé	CPPg++14.2.0	Error
May 18, 2026 14:23	wn	CPPg++13.3.0	Success	3,423
May 18, 2026 14:22	wn	CPPg++13.3.0	Error	+0.92 RP
May 18, 2026 14:21	wn	CPPg++13.3.0	Success	3,378
May 18, 2026 11:26	Victor Mercklé	CPPg++14.2.0	Success	10,664
May 18, 2026 11:21	Victor Mercklé	CPPg++14.2.0	Success	6,733+0.66 RP
May 18, 2026 11:04	Victor Mercklé	CPPg++14.2.0	Error
May 18, 2026 10:08	Victor Mercklé	CPPg++14.2.0	Success	6,736+45.71 RP
May 18, 2026 10:03	Aleksei Shahoika	CPPclang++18.1.3	Success	13,362
May 18, 2026 09:52	Aleksei Shahoika	CPPclang++18.1.3	Success	12,652
May 18, 2026 09:49	Victor Mercklé	CPPg++14.2.0	Success	7,795
May 18, 2026 09:44	Victor Mercklé	CPPg++14.2.0	Success	6,978
May 18, 2026 09:39	Aleksei Shahoika	CPPclang++18.1.3	Success	12,620+8.51 RP
May 18, 2026 09:39	Victor Mercklé	CPPg++14.2.0	Success	7,749
May 18, 2026 07:42	Victor Mercklé	CPPg++14.2.0	Success	7,162
May 18, 2026 06:52	Victor Mercklé	CPPg++14.2.0	Error
May 18, 2026 02:27	avoidcatenjoyers	CPPclang++20.1.2	Success	74,026+17.72 RP
May 18, 2026 01:41	Maya Rebholz	CPPg++10.5.0	Success	111,210
May 18, 2026 01:36	Maya Rebholz	CPPg++10.5.0	Error
May 18, 2026 01:34	Maya Rebholz	CPPg++10.5.0	Error
May 18, 2026 01:30	avoidcatenjoyers	CPPclang++20.1.2	Success	85,204+5.08 RP
May 18, 2026 01:27	Maya Rebholz	CPPg++10.5.0	Success	89,038+112.31 RP
May 18, 2026 01:27	avoidcatenjoyers	CPPclang++20.1.2	Error
May 18, 2026 00:53	avoidcatenjoyers	CPPclang++20.1.2	Success	91,718
May 18, 2026 00:44	avoidcatenjoyers	CPPclang++20.1.2	Success	93,615
May 18, 2026 00:38	avoidcatenjoyers	CPPclang++20.1.2	Success	93,664
May 17, 2026 23:57	avoidcatenjoyers	CPPg++10.5.0	Success	89,060+107.48 RP
May 17, 2026 23:49	Aleksei Shahoika	CPPclang++18.1.3	Success	12,757+2.08 RP
May 17, 2026 23:47	Aleksei Shahoika	CPPclang++18.1.3	Success	13,058
May 17, 2026 23:38	Aleksei Shahoika	CPPclang++18.1.3	Success	12,791+72.93 RP
May 17, 2026 22:03	04Adam	CPPg++10.5.0	Success	89,023+112.33 RP
May 17, 2026 21:26	zielaj	CPPclang++20.1.2	Success	3,332

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