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 23:16	Juraj Zelman	RUSTrust-1.93.1	Success	7,128+6.85 RP
Feb 21, 2026 23:15	Juraj Zelman	RUSTrust-1.78.0	Success	7,163+0.39 RP
Feb 21, 2026 23:14	MathSO	GOgo1.26.0	Success	190,596+0.47 RP
Feb 21, 2026 23:13	Juraj Zelman	RUSTrust-1.93.1	Success	7,506
Feb 21, 2026 23:04	MathSO	GOgo1.26.0	Success	192,310+3.86 RP
Feb 21, 2026 23:03	Mathaus Adorno Pereira	GOgo1.26.0	Success	218,390+4.55 RP
Feb 21, 2026 23:00	Mathaus Adorno Pereira	GOgo1.26.0	Success	242,510+1.45 RP
Feb 21, 2026 22:57	Mathaus Adorno Pereira	GOgo1.26.0	Success	251,329+4.09 RP
Feb 21, 2026 22:52	wn	CPPclang++18.1.3	Success	5,041
Feb 21, 2026 22:50	wn	CPPclang++18.1.3	Success	5,039
Feb 21, 2026 22:44	MathSO	GOgo1.26.0	Error
Feb 21, 2026 22:36	Leonardo Pedrozo Amaral	CPPg++13.3.0	Success	63,696
Feb 21, 2026 22:32	Leonardo Pedrozo Amaral	CPPg++13.3.0	Success	61,289+163.16 RP
Feb 21, 2026 22:05	MathSO	GOgo1.26.0	Success	207,744+20.65 RP
Feb 21, 2026 21:57	Mathaus Adorno Pereira	GOgo1.26.0	Success	280,108+35.70 RP
Feb 21, 2026 21:45	MathSO	GOgo1.26.0	Success	363,857+24.16 RP
Feb 21, 2026 21:43	MathSO	GOgo1.26.0	Error
Feb 21, 2026 21:24	wn	CPPclang++18.1.3	Error
Feb 21, 2026 21:21	wn	CPPclang++18.1.3	Success	5,040
Feb 21, 2026 21:18	wn	CPPclang++18.1.3	Success	5,127
Feb 21, 2026 21:16	wn	CPPclang++18.1.3	Success	5,104
Feb 21, 2026 21:16	wn	CPPclang++18.1.3	Error
Feb 21, 2026 21:02	wn	CPPclang++18.1.3	Success	5,230
Feb 21, 2026 21:01	wn	CPPclang++18.1.3	Error
Feb 21, 2026 18:49	Daniel Mastalerz	CPPclang++18.1.3	Success	5,723
Feb 21, 2026 18:47	Daniel Mastalerz	CPPclang++18.1.3	Success	5,723
Feb 21, 2026 18:47	Daniel Mastalerz	CPPclang++18.1.3	Success	5,726
Feb 21, 2026 18:40	Daniel Mastalerz	CPPclang++18.1.3	Success	15,410
Feb 21, 2026 18:40	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 21, 2026 18:38	Daniel Mastalerz	CPPclang++18.1.3	Success	8,366
Feb 21, 2026 18:28	Daniel Mastalerz	CPPclang++18.1.3	Success	5,602
Feb 21, 2026 18:26	Daniel Mastalerz	CPPclang++18.1.3	Success	5,611
Feb 21, 2026 18:24	Daniel Mastalerz	CPPclang++18.1.3	Success	5,674
Feb 21, 2026 18:22	Daniel Mastalerz	CPPclang++18.1.3	Success	5,779
Feb 21, 2026 18:20	Daniel Mastalerz	CPPclang++18.1.3	Success	5,576
Feb 21, 2026 18:20	Daniel Mastalerz	CPPclang++18.1.3	Success	5,547+8.41 RP
Feb 21, 2026 18:18	Daniel Mastalerz	CPPclang++18.1.3	Success	5,616
Feb 21, 2026 18:11	Juraj Zelman	RUSTrust-1.93.1	Success	7,532
Feb 21, 2026 18:10	Daniel Mastalerz	CPPclang++18.1.3	Success	5,593
Feb 21, 2026 18:09	Daniel Mastalerz	CPPclang++18.1.3	Success	5,644
Feb 21, 2026 17:08	Juraj Zelman	RUSTrust-1.93.1	Success	7,166
Feb 21, 2026 17:07	Juraj Zelman	RUSTrust-1.78.0	Success	7,165+115.26 RP
Feb 21, 2026 16:03	Juraj Zelman	RUSTrust-1.78.0	Success	7,846
Feb 21, 2026 15:58	Juraj Zelman	RUSTrust-1.93.1	Success	7,932
Feb 21, 2026 15:57	Juraj Zelman	RUSTrust-1.93.1	Success	7,810+42.63 RP
Feb 21, 2026 15:29	Juraj Zelman	RUSTrust-1.93.1	Success	8,292
Feb 21, 2026 15:28	Juraj Zelman	RUSTrust-1.93.1	Success	8,303
Feb 21, 2026 15:09	Juraj Zelman	RUSTrust-1.93.1	Success	8,661
Feb 21, 2026 15:03	Juraj Zelman	RUSTrust-1.93.1	Success	8,309
Feb 21, 2026 15:00	Juraj Zelman	RUSTrust-1.93.1	Success	8,079+122.95 RP
Feb 21, 2026 14:27	Daniel Mastalerz	CPPclang++18.1.3	Success	5,667
Feb 21, 2026 14:26	Daniel Mastalerz	CPPclang++18.1.3	Success	5,641
Feb 21, 2026 14:23	Daniel Mastalerz	CPPclang++18.1.3	Success	5,573+3.53 RP
Feb 21, 2026 14:19	Daniel Mastalerz	CPPclang++18.1.3	Success	5,657
Feb 21, 2026 14:17	Daniel Mastalerz	CPPclang++18.1.3	Success	5,584+11.15 RP
Feb 21, 2026 14:11	Daniel Mastalerz	CPPclang++18.1.3	Success	5,683
Feb 21, 2026 14:11	Daniel Mastalerz	CPPclang++18.1.3	Success	5,766
Feb 21, 2026 14:08	Daniel Mastalerz	CPPclang++18.1.3	Success	5,625
Feb 21, 2026 14:08	Daniel Mastalerz	CPPclang++18.1.3	Success	5,619+5.68 RP
Feb 21, 2026 14:08	Daniel Mastalerz	CPPclang++18.1.3	Success	5,707
Feb 21, 2026 14:08	Daniel Mastalerz	CPPclang++18.1.3	Success	5,638
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

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