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
Feb 21, 2026 14:05	Daniel Mastalerz	CPPclang++18.1.3	Success	5,727
Feb 21, 2026 14:01	Daniel Mastalerz	CPPclang++18.1.3	Success	5,696
Feb 21, 2026 13:58	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 21, 2026 13:53	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 21, 2026 13:52	Daniel Mastalerz	CPPclang++18.1.3	Success	5,639
Feb 21, 2026 13:50	Daniel Mastalerz	CPPclang++18.1.3	Success	5,637+32.44 RP
Feb 21, 2026 13:40	Daniel Mastalerz	CPPclang++18.1.3	Success	5,826
Feb 21, 2026 13:39	Daniel Mastalerz	CPPclang++18.1.3	Success	5,761
Feb 21, 2026 13:39	Daniel Mastalerz	CPPclang++18.1.3	Success	5,826
Feb 21, 2026 13:37	Daniel Mastalerz	CPPclang++18.1.3	Success	5,757
Feb 21, 2026 13:36	Daniel Mastalerz	CPPclang++18.1.3	Success	5,836
Feb 21, 2026 13:35	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 21, 2026 13:20	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 21, 2026 13:16	Daniel Mastalerz	CPPclang++18.1.3	Success	5,810
Feb 21, 2026 12:58	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 21, 2026 12:57	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 21, 2026 12:52	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 21, 2026 12:51	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 21, 2026 12:35	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 21, 2026 12:33	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 21, 2026 12:30	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 21, 2026 12:29	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 21, 2026 12:28	Daniel Mastalerz	CPPclang++18.1.3	Success	6,734
Feb 21, 2026 12:25	Daniel Mastalerz	CPPclang++18.1.3	Success	5,742
Feb 21, 2026 12:08	Daniel Mastalerz	CPPclang++18.1.3	Success	6,236
Feb 21, 2026 12:07	Daniel Mastalerz	CPPclang++18.1.3	Success	6,380
Feb 21, 2026 11:59	Daniel Mastalerz	CPPclang++18.1.3	Success	5,941
Feb 21, 2026 11:52	Daniel Mastalerz	CPPclang++18.1.3	Success	5,928
Feb 21, 2026 11:15	Daniel Mastalerz	CPPclang++18.1.3	Success	6,557
Feb 21, 2026 11:08	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 21, 2026 11:02	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 21, 2026 11:00	Daniel Mastalerz	CPPclang++18.1.3	Success	6,121
Feb 21, 2026 10:53	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 21, 2026 10:52	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 21, 2026 10:46	Daniel Mastalerz	CPPclang++18.1.3	Success	6,756
Feb 21, 2026 10:44	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 21, 2026 10:44	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 21, 2026 10:43	Daniel Mastalerz	CPPclang++18.1.3	Success	6,885
Feb 21, 2026 10:35	Daniel Mastalerz	CPPclang++18.1.3	Success	6,119
Feb 21, 2026 10:32	Daniel Mastalerz	CPPclang++18.1.3	Success	5,846
Feb 21, 2026 10:21	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 21, 2026 10:12	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 21, 2026 10:08	Daniel Mastalerz	CPPclang++18.1.3	Success	6,530
Feb 21, 2026 10:07	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 21, 2026 10:06	Daniel Mastalerz	CPPclang++18.1.3	Success	6,634
Feb 21, 2026 10:04	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 21, 2026 09:47	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 21, 2026 09:46	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 21, 2026 09:44	CheckHarry	CPPg++13.3.0	Success	62,014
Feb 21, 2026 09:41	Daniel Mastalerz	CPPclang++18.1.3	Success	7,972
Feb 21, 2026 09:05	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 21, 2026 08:57	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 21, 2026 08:52	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 21, 2026 04:12	MathSO	GOgo1.26.0	Error
Feb 21, 2026 03:49	MathSO	GOgo1.26.0	Success	3,008,820+3.32 RP
Feb 21, 2026 03:41	MathSO	GOgo1.26.0	Error
Feb 21, 2026 01:56	Josu San Martin	CPPclang++18.1.3	Success	6,247
Feb 21, 2026 01:54	Josu San Martin	CPPg++13.3.0	Success	6,168
Feb 21, 2026 01:47	Josu San Martin	CPPg++13.3.0	Success	6,066
Feb 21, 2026 00:52	Josu San Martin	CPPg++13.3.0	Error
Feb 21, 2026 00:49	Josu San Martin	CPPg++13.3.0	Success	6,064
Feb 21, 2026 00:45	Josu San Martin	CPPg++13.3.0	Success	6,086
Feb 21, 2026 00:36	Josu San Martin	CPPg++13.3.0	Success	6,126
Feb 20, 2026 23:24	Josu San Martin	RUSTrust-1.92.0	Success	5,772
Feb 20, 2026 23:07	Josu San Martin	CPPclang++18.1.3	Success	6,180
Feb 20, 2026 23:05	Josu San Martin	RUSTrust-1.92.0	Success	5,782
Feb 20, 2026 22:23	Daniel Mastalerz	CPPclang++18.1.3	Success	59,270
Feb 20, 2026 22:21	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 20, 2026 22:21	Daniel Mastalerz	CPPclang++18.1.3	Success	59,620
Feb 20, 2026 20:46	Yash Kodesia	CPPg++13.3.0	Success	2,028,962+4.93 RP
Feb 20, 2026 19:51	wn	CPPclang++18.1.3	Success	5,135
Feb 20, 2026 19:39	wn	CPPclang++18.1.3	Success	5,000+15.48 RP
Feb 20, 2026 19:38	wn	CPPclang++18.1.3	Success	5,039
Feb 20, 2026 19:35	Mikołaj Uzarski	CPPclang++18.1.3	Success	7,572
Feb 20, 2026 19:27	wn	CPPclang++18.1.3	Success	5,044
Feb 20, 2026 19:26	wn	CPPclang++18.1.3	Success	8,978
Feb 20, 2026 19:25	wn	CPPclang++18.1.3	Success	8,989
Feb 20, 2026 19:24	Mikołaj Uzarski	CPPclang++18.1.3	Success	7,253
Feb 20, 2026 19:23	Daniel Mastalerz	CPPclang++18.1.3	Success	6,928
Feb 20, 2026 19:23	wn	CPPclang++18.1.3	Success	8,977
Feb 20, 2026 19:17	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 20, 2026 19:13	Mikołaj Uzarski	CPPclang++18.1.3	Success	6,727
Feb 20, 2026 19:10	Mikołaj Uzarski	CPPclang++18.1.3	Success	6,746
Feb 20, 2026 19:01	Mikołaj Uzarski	CPPclang++18.1.3	Success	7,265
Feb 20, 2026 18:57	wn	CPPclang++18.1.3	Success	5,078
Feb 20, 2026 18:54	wn	CPPclang++18.1.3	Success	5,209
Feb 20, 2026 18:53	wn	CPPclang++18.1.3	Success	5,364
Feb 20, 2026 18:52	wn	CPPclang++18.1.3	Success	5,455
Feb 20, 2026 18:48	Mikołaj Uzarski	CPPclang++18.1.3	Success	8,410
Feb 20, 2026 18:19	Daniel Mastalerz	CPPclang++18.1.3	Success	5,928
Feb 20, 2026 18:18	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 20, 2026 18:18	Daniel Mastalerz	CPPclang++18.1.3	Success	5,860
Feb 20, 2026 18:16	Daniel Mastalerz	CPPclang++18.1.3	Success	5,908
Feb 20, 2026 18:15	Daniel Mastalerz	CPPclang++18.1.3	Success	5,850
Feb 20, 2026 18:10	Daniel Mastalerz	CPPclang++18.1.3	Success	5,817
Feb 20, 2026 18:09	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 20, 2026 17:00	Daniel Mastalerz	CPPclang++18.1.3	Success	5,853
Feb 20, 2026 16:53	Daniel Mastalerz	CPPclang++18.1.3	Success	5,773
Feb 20, 2026 16:51	Daniel Mastalerz	CPPclang++18.1.3	Success	5,777
Feb 20, 2026 16:50	Daniel Mastalerz	CPPclang++18.1.3	Success	5,883

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