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 21, 2026 06:03	Pavel Krajcevski	CPPg++10.5.0	Success	682,787
May 21, 2026 06:01	Pavel Krajcevski	CPPg++10.5.0	Success	64,613
May 20, 2026 22:17	Maya Rebholz	CPPg++10.5.0	Success	9,461
May 20, 2026 22:13	Maya Rebholz	CPPg++10.5.0	Success	9,460+15.31 RP
May 20, 2026 22:08	Maya Rebholz	CPPg++10.5.0	Success	9,599+51.09 RP
May 20, 2026 21:53	Maya Rebholz	CPPg++10.5.0	Success	10,271
May 20, 2026 20:57	Pavel Krajcevski	CPPg++10.5.0	Success	58,939
May 20, 2026 20:50	Pavel Krajcevski	CPPg++10.5.0	Success	57,130
May 20, 2026 20:48	Pavel Krajcevski	CPPg++10.5.0	Success	149,961
May 20, 2026 19:59	Pavel Krajcevski	CPPg++10.5.0	Error
May 20, 2026 19:55	Pavel Krajcevski	CPPg++10.5.0	Error
May 20, 2026 19:53	Victor Mercklé	CPPg++14.2.0	Success	9,612
May 20, 2026 19:42	Victor Mercklé	CPPg++14.2.0	Success	5,972
May 20, 2026 19:33	Victor Mercklé	CPPg++14.2.0	Success	5,390
May 20, 2026 19:26	Victor Mercklé	CPPg++14.2.0	Success	14,350
May 20, 2026 18:57	Victor Mercklé	CPPg++14.2.0	Success	4,793+2.61 RP
May 20, 2026 18:35	Victor Mercklé	CPPg++14.2.0	Success	4,799+12.95 RP
May 20, 2026 18:25	Victor Mercklé	CPPg++14.2.0	Success	4,834
May 20, 2026 18:18	Victor Mercklé	CPPg++14.2.0	Success	4,829+19.12 RP
May 20, 2026 18:11	Victor Mercklé	CPPg++14.2.0	Success	4,874+45.68 RP
May 20, 2026 17:58	Victor Mercklé	CPPg++14.2.0	Success	5,081
May 20, 2026 17:51	Victor Mercklé	CPPg++14.2.0	Success	4,992
May 20, 2026 17:46	Victor Mercklé	CPPg++14.2.0	Success	5,017
May 20, 2026 17:30	Victor Mercklé	CPPg++14.2.0	Success	4,985+214.87 RP
May 20, 2026 17:21	Victor Mercklé	CPPg++14.2.0	Error
May 20, 2026 17:14	Victor Mercklé	CPPg++14.2.0	Error
May 20, 2026 16:49	Victor Mercklé	CPPg++14.2.0	Error
May 20, 2026 16:49	Maya Rebholz	CPPg++10.5.0	Success	10,488
May 20, 2026 16:46	Pavel Krajcevski	CPPg++10.5.0	Success	59,952
May 20, 2026 16:35	Pavel Krajcevski	CPPg++10.5.0	Error
May 20, 2026 16:34	Pavel Krajcevski	CPPg++10.5.0	Error
May 20, 2026 16:29	Victor Mercklé	CPPg++14.2.0	Error
May 20, 2026 16:29	Pavel Krajcevski	CPPg++10.5.0	Error
May 20, 2026 16:26	Pavel Krajcevski	CPPg++10.5.0	Error
May 20, 2026 16:23	Pavel Krajcevski	CPPg++10.5.0	Error
May 20, 2026 16:16	Maya Rebholz	CPPg++10.5.0	Success	10,094+290.70 RP
May 20, 2026 16:08	Victor Mercklé	CPPg++14.2.0	Error
May 20, 2026 15:56	Maya Rebholz	CPPg++10.5.0	Success	15,121
May 20, 2026 15:51	Victor Mercklé	CPPg++14.2.0	Success	5,585
May 20, 2026 15:26	Victor Mercklé	CPPg++14.2.0	Success	5,584
May 20, 2026 15:20	Victor Mercklé	CPPg++14.2.0	Success	5,583
May 20, 2026 15:13	Victor Mercklé	CPPg++14.2.0	Success	5,706
May 20, 2026 15:01	Victor Mercklé	CPPg++14.2.0	Error
May 20, 2026 12:13	Victor Mercklé	CPPg++14.2.0	Success	5,825
May 20, 2026 11:58	Victor Mercklé	CPPg++14.2.0	Success	5,980
May 20, 2026 11:48	Victor Mercklé	CPPg++14.2.0	Success	5,624
May 20, 2026 11:38	Victor Mercklé	CPPg++14.2.0	Success	5,617
May 20, 2026 11:30	Victor Mercklé	CPPg++14.2.0	Success	5,596
May 20, 2026 11:20	Victor Mercklé	CPPg++14.2.0	Success	5,583+28.42 RP
May 20, 2026 11:12	Victor Mercklé	CPPg++14.2.0	Success	5,673+11.42 RP
May 20, 2026 11:02	Victor Mercklé	CPPg++14.2.0	Success	5,878
May 20, 2026 10:51	Victor Mercklé	CPPg++14.2.0	Success	5,843
May 20, 2026 10:46	Victor Mercklé	CPPg++14.2.0	Success	5,858
May 20, 2026 10:41	Victor Mercklé	CPPg++14.2.0	Success	5,870
May 20, 2026 10:40	M-Rochat	CPPclang++17.0.6	Success	7,332
May 20, 2026 10:39	M-Rochat	CPPg++13.3.0	Success	8,811
May 20, 2026 10:38	M-Rochat	CPPclang++17.0.6	Success	6,873
May 20, 2026 10:37	M-Rochat	CPPclang++17.0.6	Success	6,843
May 20, 2026 10:36	M-Rochat	CPPclang++17.0.6	Success	6,854
May 20, 2026 10:35	M-Rochat	CPPclang++17.0.6	Success	6,754+3.06 RP
May 20, 2026 10:33	Victor Mercklé	CPPg++14.2.0	Success	5,914
May 20, 2026 10:29	M-Rochat	CPPclang++17.0.6	Success	6,812
May 20, 2026 10:28	M-Rochat	CPPclang++17.0.6	Success	6,848
May 20, 2026 10:27	M-Rochat	CPPclang++17.0.6	Success	6,854
May 20, 2026 10:25	M-Rochat	CPPclang++20.1.2	Success	6,959
May 20, 2026 10:25	M-Rochat	CPPclang++17.0.6	Success	6,768+15.55 RP
May 20, 2026 10:24	Victor Mercklé	CPPg++14.2.0	Success	5,888
May 20, 2026 10:24	M-Rochat	CPPclang++19.1.1	Success	6,949
May 20, 2026 10:22	M-Rochat	CPPclang++17.0.6	Success	7,200
May 20, 2026 10:15	Victor Mercklé	CPPg++14.2.0	Success	5,923
May 20, 2026 10:12	M-Rochat	CPPclang++17.0.6	Success	6,840+134.32 RP
May 20, 2026 10:09	M-Rochat	CPPclang++17.0.6	Success	7,532+1.58 RP
May 20, 2026 10:07	M-Rochat	CPPclang++17.0.6	Success	7,541+478.91 RP
May 20, 2026 10:06	Victor Mercklé	CPPg++14.2.0	Success	6,242
May 20, 2026 10:05	M-Rochat	CPPclang++17.0.6	Error
May 20, 2026 10:01	M-Rochat	CPPclang++17.0.6	Success	11,966
May 20, 2026 10:00	M-Rochat	CPPclang++17.0.6	Success	11,811
May 20, 2026 09:58	Victor Mercklé	CPPg++14.2.0	Success	5,710+14.30 RP
May 20, 2026 09:57	M-Rochat	CPPclang++17.0.6	Success	11,954
May 20, 2026 09:33	Victor Mercklé	ZIG0.16.0	Success	6,057
May 20, 2026 08:19	Victor Mercklé	CPPg++14.2.0	Success	5,837
May 20, 2026 06:46	M-Rochat	CPPclang++17.0.6	Success	11,896
May 20, 2026 06:45	M-Rochat	CPPclang++19.1.1	Success	14,073
May 20, 2026 06:44	M-Rochat	CPPclang++17.0.6	Success	11,900
May 20, 2026 06:42	M-Rochat	CPPg++13.3.0	Success	78,596
May 20, 2026 06:41	M-Rochat	CPPg++13.3.0	Success	64,625
May 20, 2026 06:39	M-Rochat	CPPclang++17.0.6	Success	11,975
May 20, 2026 06:37	M-Rochat	CPPclang++17.0.6	Success	11,903
May 20, 2026 06:37	M-Rochat	CPPclang++17.0.6	Success	11,898
May 20, 2026 06:34	M-Rochat	CPPclang++17.0.6	Success	12,291
May 20, 2026 06:32	M-Rochat	CPPg++13.3.0	Success	14,780
May 20, 2026 06:32	M-Rochat	CSHARP9.0.15	Success	61,280
May 20, 2026 06:30	M-Rochat	CPPclang++17.0.6	Success	12,122
May 20, 2026 06:29	M-Rochat	ZIG0.15.1	Success	41,545
May 20, 2026 06:25	M-Rochat	RUSTrust-1.95.0	Success	54,483
May 20, 2026 06:23	M-Rochat	CPPclang++17.0.6	Success	12,794
May 20, 2026 06:21	M-Rochat	CSHARP9.0.15	Success	47,503
May 20, 2026 06:20	M-Rochat	GOgo1.26.2	Success	50,787
May 20, 2026 06:20	M-Rochat	CPPg++13.3.0	Success	37,973
May 20, 2026 06:08	M-Rochat	CPPclang++17.0.6	Success	11,804

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