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 22, 2026 07:56	Victor Mercklé	CPPg++14.2.0	Success	4,578
May 22, 2026 07:49	Victor Mercklé	CPPg++14.2.0	Success	4,575
May 22, 2026 07:17	Victor Mercklé	CPPg++14.2.0	Success	4,632
May 22, 2026 07:13	Victor Mercklé	CPPg++14.2.0	Success	4,568+0.48 RP
May 22, 2026 07:10	Victor Mercklé	CPPg++14.2.0	Success	4,575
May 21, 2026 22:02	M-Rochat	CPPclang++17.0.6	Success	6,599+0.69 RP
May 21, 2026 22:00	M-Rochat	CPPclang++17.0.6	Success	6,602
May 21, 2026 21:57	M-Rochat	CPPclang++17.0.6	Success	6,602+2.06 RP
May 21, 2026 21:56	M-Rochat	CPPclang++17.0.6	Success	6,626
May 21, 2026 21:54	M-Rochat	CPPclang++17.0.6	Success	6,611+23.87 RP
May 21, 2026 21:51	M-Rochat	CPPclang++17.0.6	Success	6,717+5.08 RP
May 21, 2026 21:49	M-Rochat	CPPclang++17.0.6	Success	6,941
May 21, 2026 21:44	M-Rochat	CPPclang++17.0.6	Success	6,824
May 21, 2026 21:41	M-Rochat	CPPclang++17.0.6	Success	7,870
May 21, 2026 21:39	M-Rochat	CPPclang++17.0.6	Success	6,938
May 21, 2026 21:37	M-Rochat	CPPg++13.3.0	Success	8,747
May 21, 2026 21:35	M-Rochat	CPPclang++17.0.6	Success	6,740+3.08 RP
May 21, 2026 17:07	Victor Mercklé	CPPg++14.2.0	Success	5,135
May 21, 2026 17:03	Victor Mercklé	CPPg++14.2.0	Success	4,638
May 21, 2026 16:51	Victor Mercklé	CPPg++14.2.0	Success	4,644
May 21, 2026 16:39	Victor Mercklé	CPPg++14.2.0	Success	4,582
May 21, 2026 16:32	Victor Mercklé	CPPg++14.2.0	Success	4,618
May 21, 2026 15:50	Victor Mercklé	CPPg++14.2.0	Success	4,573
May 21, 2026 15:34	Victor Mercklé	CPPg++14.2.0	Success	4,648
May 21, 2026 15:08	Victor Mercklé	CPPg++14.2.0	Success	4,657
May 21, 2026 15:01	Victor Mercklé	CPPg++14.2.0	Success	4,611
May 21, 2026 14:58	Victor Mercklé	CPPg++14.2.0	Success	4,611
May 21, 2026 14:54	Victor Mercklé	CPPg++14.2.0	Success	4,616
May 21, 2026 14:50	Victor Mercklé	CPPg++14.2.0	Success	4,590
May 21, 2026 14:47	Victor Mercklé	CPPg++14.2.0	Success	4,590
May 21, 2026 14:44	Victor Mercklé	CPPg++14.2.0	Success	4,569+33.49 RP
May 21, 2026 14:35	Victor Mercklé	CPPg++14.2.0	Success	4,698
May 21, 2026 14:31	Victor Mercklé	CPPg++14.2.0	Success	4,666
May 21, 2026 14:25	Victor Mercklé	CPPg++14.2.0	Success	4,673
May 21, 2026 14:05	Victor Mercklé	CPPg++14.2.0	Success	4,691
May 21, 2026 13:57	Victor Mercklé	CPPg++14.2.0	Success	4,665
May 21, 2026 13:55	Victor Mercklé	CPPg++14.2.0	Success	4,950
May 21, 2026 13:52	Victor Mercklé	CPPg++14.2.0	Success	4,670
May 21, 2026 13:47	Victor Mercklé	CPPg++14.2.0	Success	4,645
May 21, 2026 13:42	Victor Mercklé	CPPg++14.2.0	Success	4,668
May 21, 2026 13:38	Victor Mercklé	CPPg++14.2.0	Success	4,674
May 21, 2026 13:34	Victor Mercklé	CPPg++14.2.0	Success	4,762
May 21, 2026 13:31	Victor Mercklé	CPPg++14.2.0	Success	4,721
May 21, 2026 13:28	Victor Mercklé	CPPg++14.2.0	Success	5,788
May 21, 2026 13:25	Victor Mercklé	CPPg++14.2.0	Success	4,646
May 21, 2026 13:22	Victor Mercklé	CPPg++14.2.0	Success	4,655
May 21, 2026 13:19	Victor Mercklé	CPPg++14.2.0	Success	4,687
May 21, 2026 13:14	Victor Mercklé	CPPg++14.2.0	Success	4,640+2.32 RP
May 21, 2026 13:10	Victor Mercklé	CPPg++14.2.0	Success	4,667
May 21, 2026 13:06	Victor Mercklé	CPPg++14.2.0	Success	4,664
May 21, 2026 13:01	Victor Mercklé	CPPg++14.2.0	Success	4,677
May 21, 2026 12:57	Victor Mercklé	CPPg++14.2.0	Success	4,645+4.62 RP
May 21, 2026 12:53	Victor Mercklé	CPPg++14.2.0	Success	4,655+4.15 RP
May 21, 2026 12:50	Victor Mercklé	CPPg++14.2.0	Success	5,201
May 21, 2026 12:41	Victor Mercklé	CPPg++14.2.0	Success	4,669
May 21, 2026 12:37	Victor Mercklé	CPPg++14.2.0	Success	4,823
May 21, 2026 12:32	Victor Mercklé	CPPg++14.2.0	Success	4,664
May 21, 2026 12:27	Victor Mercklé	CPPg++14.2.0	Success	4,664+2.30 RP
May 21, 2026 12:22	Victor Mercklé	CPPg++14.2.0	Success	4,674
May 21, 2026 12:18	Victor Mercklé	CPPg++14.2.0	Success	4,669+0.92 RP
May 21, 2026 12:15	Victor Mercklé	CPPg++14.2.0	Success	4,671+10.49 RP
May 21, 2026 12:11	Victor Mercklé	CPPg++14.2.0	Success	4,913
May 21, 2026 12:00	Victor Mercklé	CPPg++14.2.0	Success	5,161
May 21, 2026 11:56	Victor Mercklé	CPPg++14.2.0	Success	4,879
May 21, 2026 11:39	Victor Mercklé	CPPg++14.2.0	Success	4,706
May 21, 2026 11:35	Victor Mercklé	CPPg++14.2.0	Success	4,839
May 21, 2026 11:30	Victor Mercklé	CPPg++14.2.0	Success	4,708
May 21, 2026 11:25	Victor Mercklé	CPPg++14.2.0	Success	4,694+3.62 RP
May 21, 2026 10:58	Victor Mercklé	CPPg++14.2.0	Success	4,702+1.36 RP
May 21, 2026 10:56	Victor Mercklé	CPPg++14.2.0	Error
May 21, 2026 10:39	Victor Mercklé	CPPg++14.2.0	Success	13,944
May 21, 2026 10:26	Victor Mercklé	CPPg++14.2.0	Success	4,705+3.61 RP
May 21, 2026 10:17	Victor Mercklé	CPPg++14.2.0	Success	25,361
May 21, 2026 10:04	Victor Mercklé	CPPg++14.2.0	Success	4,939
May 21, 2026 09:48	Victor Mercklé	CPPg++14.2.0	Success	5,844
May 21, 2026 09:30	Victor Mercklé	CPPg++14.2.0	Success	4,713+35.41 RP
May 21, 2026 09:02	Victor Mercklé	CPPg++14.2.0	Success	4,794
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

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