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
Apr 6, 2026 14:04	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 6, 2026 13:57	Danylo Mocherniuk	CPPg++13.3.0	Success	17,899
Apr 6, 2026 13:47	Danylo Mocherniuk	CPPg++13.3.0	Success	7,360
Apr 6, 2026 13:46	Danylo Mocherniuk	CPPg++13.3.0	Success	7,175
Apr 6, 2026 13:43	Danylo Mocherniuk	CPPg++13.3.0	Success	8,296
Apr 6, 2026 13:41	Danylo Mocherniuk	CPPg++13.3.0	Success	8,215
Apr 6, 2026 13:35	Danylo Mocherniuk	CPPg++13.3.0	Success	7,292
Apr 6, 2026 13:33	Danylo Mocherniuk	CPPg++13.3.0	Success	7,188
Apr 6, 2026 13:29	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 6, 2026 13:27	Danylo Mocherniuk	CPPg++13.3.0	Success	7,489
Apr 6, 2026 13:17	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 6, 2026 13:14	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 6, 2026 12:36	Danylo Mocherniuk	CPPg++13.3.0	Success	9,973
Apr 6, 2026 12:35	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 6, 2026 12:31	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 6, 2026 12:30	Danylo Mocherniuk	CPPg++13.3.0	Success	8,202
Apr 6, 2026 12:27	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 6, 2026 12:26	Danylo Mocherniuk	CPPg++13.3.0	Success	7,485
Apr 6, 2026 12:26	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 6, 2026 12:25	Danylo Mocherniuk	CPPg++13.3.0	Success	7,419
Apr 6, 2026 12:20	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 6, 2026 11:55	Danylo Mocherniuk	CPPg++13.3.0	Success	6,866
Apr 6, 2026 11:41	Danylo Mocherniuk	CPPg++13.3.0	Success	7,396
Apr 6, 2026 11:36	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 6, 2026 11:29	Danylo Mocherniuk	CPPg++13.3.0	Success	7,377
Apr 6, 2026 11:25	Danylo Mocherniuk	CPPg++13.3.0	Success	7,776
Apr 6, 2026 11:15	Danylo Mocherniuk	CPPg++13.3.0	Success	8,048
Apr 6, 2026 10:18	Danylo Mocherniuk	CPPg++13.3.0	Success	8,108
Apr 6, 2026 09:54	Danylo Mocherniuk	CPPg++13.3.0	Success	7,847
Apr 6, 2026 09:41	Danylo Mocherniuk	CPPg++13.3.0	Success	8,182
Apr 6, 2026 09:08	Danylo Mocherniuk	CPPg++13.3.0	Success	7,868
Apr 6, 2026 08:46	Danylo Mocherniuk	CPPg++13.3.0	Success	7,247
Apr 6, 2026 07:54	Danylo Mocherniuk	CPPg++13.3.0	Success	7,688
Apr 5, 2026 21:15	Danylo Mocherniuk	CPPg++13.3.0	Success	7,237
Apr 5, 2026 21:14	Danylo Mocherniuk	CPPg++13.3.0	Success	7,239
Apr 5, 2026 21:03	wn	CPPclang++18.1.3	Success	4,319
Apr 5, 2026 21:03	Danylo Mocherniuk	CPPg++13.3.0	Success	7,157
Apr 5, 2026 20:58	Danylo Mocherniuk	CPPg++13.3.0	Success	7,056
Apr 5, 2026 20:55	wn	CPPclang++18.1.3	Success	4,348
Apr 5, 2026 20:44	Danylo Mocherniuk	CPPg++13.3.0	Success	7,457
Apr 5, 2026 20:43	wn	CPPclang++18.1.3	Success	4,482
Apr 5, 2026 20:42	Danylo Mocherniuk	CPPg++13.3.0	Success	7,466
Apr 5, 2026 20:35	wn	CPPclang++18.1.3	Success	4,279
Apr 5, 2026 20:33	wn	CPPclang++18.1.3	Success	4,273
Apr 5, 2026 20:32	wn	CPPclang++18.1.3	Success	4,317
Apr 5, 2026 20:32	wn	CPPclang++18.1.3	Success	4,318
Apr 5, 2026 20:22	Danylo Mocherniuk	CPPg++13.3.0	Success	7,452
Apr 5, 2026 20:20	Danylo Mocherniuk	CPPg++13.3.0	Success	7,568
Apr 5, 2026 20:14	Danylo Mocherniuk	CPPg++13.3.0	Success	7,466
Apr 5, 2026 18:59	Danylo Mocherniuk	CPPg++13.3.0	Success	6,571
Apr 5, 2026 18:05	Danylo Mocherniuk	CPPg++13.3.0	Success	10,685
Apr 5, 2026 17:18	Danylo Mocherniuk	CPPg++13.3.0	Success	8,199
Apr 5, 2026 17:17	Danylo Mocherniuk	CPPg++13.3.0	Success	9,180
Apr 5, 2026 17:08	Danylo Mocherniuk	CPPg++13.3.0	Success	8,218
Apr 5, 2026 17:07	Danylo Mocherniuk	CPPg++13.3.0	Success	8,937
Apr 5, 2026 17:03	Danylo Mocherniuk	CPPg++13.3.0	Success	8,320
Apr 5, 2026 16:51	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 5, 2026 16:50	Danylo Mocherniuk	CPPg++13.3.0	Success	8,691
Apr 5, 2026 16:48	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 5, 2026 16:45	Danylo Mocherniuk	CPPg++13.3.0	Success	8,697
Apr 5, 2026 16:44	Danylo Mocherniuk	CPPg++13.3.0	Success	8,720
Apr 5, 2026 16:15	Danylo Mocherniuk	CPPg++13.3.0	Success	8,113
Apr 5, 2026 16:13	Danylo Mocherniuk	CPPg++13.3.0	Success	8,142
Apr 5, 2026 16:05	Danylo Mocherniuk	CPPg++13.3.0	Success	8,102
Apr 5, 2026 16:01	Danylo Mocherniuk	CPPg++13.3.0	Success	8,898
Apr 5, 2026 16:00	Danylo Mocherniuk	CPPg++13.3.0	Success	8,904
Apr 5, 2026 15:40	Danylo Mocherniuk	CPPg++13.3.0	Success	9,160
Apr 5, 2026 14:19	Danylo Mocherniuk	CPPg++13.3.0	Success	13,076
Apr 5, 2026 14:16	Danylo Mocherniuk	CPPg++13.3.0	Success	12,750
Apr 5, 2026 14:16	Danylo Mocherniuk	CPPg++13.3.0	Success	12,889
Apr 5, 2026 14:03	Danylo Mocherniuk	CPPg++13.3.0	Success	19,158
Apr 5, 2026 13:51	Danylo Mocherniuk	CPPg++13.3.0	Success	17,600
Apr 5, 2026 13:43	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 4, 2026 23:26	Adewuyi Israel	CPPg++13.3.0	Success	2,070,829
Apr 4, 2026 22:50	zielaj	CPPclang++18.1.3	Success	3,524
Apr 4, 2026 22:50	zielaj	CPPclang++18.1.3	Success	3,458
Apr 4, 2026 22:48	zielaj	CPPclang++18.1.3	Error
Apr 4, 2026 22:12	zielaj	CPPclang++18.1.3	Success	3,451
Apr 4, 2026 22:01	zielaj	CPPclang++18.1.3	Success	3,477
Apr 4, 2026 21:58	zielaj	CPPclang++18.1.3	Success	3,451
Apr 4, 2026 20:21	zielaj	CPPclang++18.1.3	Error
Apr 4, 2026 20:08	zielaj	CPPclang++18.1.3	Success	3,476
Apr 4, 2026 20:03	zielaj	CPPclang++18.1.3	Success	4,145
Apr 4, 2026 17:41	Danylo Mocherniuk	CPPg++13.3.0	Success	6,563+11.75 RP
Apr 4, 2026 17:39	Danylo Mocherniuk	CPP	Success	24,180
Apr 4, 2026 11:12	Adewuyi Israel	CPPg++13.3.0	Success	2,067,742
Apr 4, 2026 11:07	Adewuyi Israel	CPPg++13.3.0	Success	2,068,833
Apr 4, 2026 10:27	Adewuyi Israel	CPPg++13.3.0	Success	2,068,701+4.83 RP
Apr 4, 2026 01:38	aL	CPPg++13.3.0	Success	2,067,800
Apr 3, 2026 22:25	aL	CPPg++13.3.0	Success	2,069,168+4.83 RP
Apr 3, 2026 22:22	Chukwuma Obi	CPPg++13.3.0	Success	2,067,315+4.84 RP
Apr 3, 2026 12:50	zielaj	CPPclang++18.1.3	Success	3,484
Apr 3, 2026 12:49	zielaj	CPPclang++18.1.3	Success	3,454
Apr 3, 2026 12:48	zielaj	CPPclang++18.1.3	Success	3,615
Apr 3, 2026 12:47	zielaj	CPPclang++18.1.3	Success	3,567
Apr 3, 2026 12:47	zielaj	CPPclang++18.1.3	Success	3,432
Apr 3, 2026 12:45	zielaj	CPPclang++18.1.3	Success	3,444
Apr 3, 2026 12:00	zielaj	CPPclang++18.1.3	Error
Apr 3, 2026 11:56	zielaj	CPPclang++18.1.3	Error
Apr 3, 2026 11:53	zielaj	CPPclang++18.1.3	Error

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