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 19, 2026 06:38	wn	CPPg++13.3.0	Success	3,838
Apr 19, 2026 06:37	wn	CPPclang++18.1.3	Error
Apr 19, 2026 06:21	wn	CPPg++13.3.0	Success	3,605+82.14 RP
Apr 19, 2026 06:18	wn	CPPclang++18.1.3	Success	4,078
Apr 19, 2026 06:16	wn	CPPg++13.3.0	Success	3,715
Apr 19, 2026 06:15	wn	CPPg++13.3.0	Success	3,716
Apr 19, 2026 06:13	wn	CPPg++13.3.0	Success	3,746
Apr 19, 2026 06:13	olliecrow	CPPclang++18.1.3	Success	6,656
Apr 19, 2026 06:11	wn	CPPg++13.3.0	Success	3,839
Apr 19, 2026 05:25	Yuriy Lyfenko	CPPg++13.3.0	Success	5,348
Apr 19, 2026 05:23	Yuriy Lyfenko	CPPg++13.3.0	Error
Apr 19, 2026 05:23	Yuriy Lyfenko	CPPg++13.3.0	Success	4,388
Apr 19, 2026 05:22	Yuriy Lyfenko	CPPg++13.3.0	Success	7,520
Apr 19, 2026 05:14	Yuriy Lyfenko	CPPclang++18.1.3	Success	5,105
Apr 19, 2026 05:14	Yuriy Lyfenko	CPPg++13.3.0	Success	4,456
Apr 19, 2026 05:09	Yuriy Lyfenko	CPPg++13.3.0	Success	4,558
Apr 19, 2026 04:51	Yuriy Lyfenko	CPPclang++18.1.3	Success	4,643
Apr 19, 2026 04:50	Yuriy Lyfenko	CPPg++13.3.0	Success	4,293
Apr 19, 2026 04:49	Yuriy Lyfenko	CPPg++13.3.0	Success	4,299
Apr 19, 2026 04:39	Yuriy Lyfenko	CPPclang++18.1.3	Success	4,392
Apr 19, 2026 04:39	Yuriy Lyfenko	CPPg++13.3.0	Success	4,612
Apr 19, 2026 04:29	wn	CPPg++13.3.0	Success	3,729
Apr 19, 2026 04:25	wn	CPPg++13.3.0	Success	3,716
Apr 19, 2026 04:23	wn	CPPg++13.3.0	Success	3,738
Apr 19, 2026 04:20	wn	CPPg++13.3.0	Success	3,746
Apr 19, 2026 04:19	wn	CPPg++13.3.0	Success	3,725
Apr 19, 2026 04:14	wn	CPPclang++18.1.3	Success	4,034
Apr 19, 2026 04:11	wn	CPPg++13.3.0	Success	3,715+221.43 RP
Apr 19, 2026 04:11	wn	CPPclang++18.1.3	Success	4,405
Apr 19, 2026 04:10	wn	CPPclang++18.1.3	Error
Apr 19, 2026 04:06	wn	CPPclang++18.1.3	Success	4,209
Apr 19, 2026 04:00	wn	CPPclang++18.1.3	Error
Apr 19, 2026 03:55	wn	CPPclang++18.1.3	Success	4,128
Apr 19, 2026 03:49	wn	CPPclang++18.1.3	Success	4,199
Apr 19, 2026 03:48	wn	CPPclang++18.1.3	Success	4,092
Apr 19, 2026 03:48	Charles Cabergs	CPPg++13.3.0	Success	20,220
Apr 19, 2026 03:46	wn	CPPclang++18.1.3	Success	4,244
Apr 19, 2026 03:44	wn	CPPclang++18.1.3	Success	4,179
Apr 19, 2026 03:43	wn	CPPclang++18.1.3	Success	4,167
Apr 19, 2026 03:41	wn	CPPclang++18.1.3	Success	4,625
Apr 19, 2026 03:34	wn	CPPclang++18.1.3	Success	4,654
Apr 19, 2026 03:30	wn	CPPg++13.3.0	Success	4,077
Apr 19, 2026 03:24	wn	CPPg++13.3.0	Success	6,321
Apr 19, 2026 03:23	wn	CPPclang++18.1.3	Success	6,520
Apr 19, 2026 03:22	wn	CPPg++13.3.0	Success	6,368
Apr 19, 2026 03:21	wn	CPPclang++18.1.3	Error
Apr 19, 2026 03:20	wn	CPPclang++18.1.3	Error
Apr 19, 2026 03:09	wn	CPPclang++18.1.3	Error
Apr 19, 2026 03:08	wn	CPPclang++18.1.3	Error
Apr 19, 2026 02:34	olliecrow	CPPg++13.3.0	Success	6,328
Apr 19, 2026 02:33	olliecrow	CPPclang++18.1.3	Success	6,485
Apr 19, 2026 02:29	olliecrow	CPPg++13.3.0	Success	6,218
Apr 19, 2026 02:13	wn	CPPclang++18.1.3	Success	4,438
Apr 19, 2026 02:01	wn	CPPclang++18.1.3	Success	6,722
Apr 19, 2026 01:57	wn	CPPclang++18.1.3	Error
Apr 19, 2026 01:55	Yuriy Lyfenko	CPPg++13.3.0	Success	4,342
Apr 19, 2026 01:54	wn	CPPclang++18.1.3	Success	51,752
Apr 19, 2026 01:53	wn	CPPclang++18.1.3	Error
Apr 19, 2026 01:53	wn	CPPclang++18.1.3	Error
Apr 19, 2026 01:52	wn	CPPclang++18.1.3	Success	51,534
Apr 19, 2026 01:52	wn	CPPclang++18.1.3	Error
Apr 19, 2026 01:51	wn	CPPclang++18.1.3	Error
Apr 19, 2026 01:50	wn	CPPclang++18.1.3	Error
Apr 19, 2026 01:48	wn	CPPclang++18.1.3	Success	56,825
Apr 19, 2026 01:45	wn	CPPg++13.3.0	Success	6,205
Apr 19, 2026 01:45	wn	CPPclang++18.1.3	Error
Apr 19, 2026 01:39	Charles Cabergs	CPPg++13.3.0	Success	19,974+4.03 RP
Apr 19, 2026 01:36	wn	CPPclang++18.1.3	Error
Apr 19, 2026 01:33	wn	CPPclang++18.1.3	Error
Apr 19, 2026 01:31	wn	CPPg++13.3.0	Success	4,093
Apr 19, 2026 01:30	wn	CPPclang++18.1.3	Error
Apr 19, 2026 01:30	wn	CPPclang++18.1.3	Error
Apr 19, 2026 00:52	Yuriy Lyfenko	CPPg++13.3.0	Error
Apr 19, 2026 00:50	Yuriy Lyfenko	CPPg++13.3.0	Error
Apr 18, 2026 21:59	Yuriy Lyfenko	CPPg++13.3.0	Success	4,319
Apr 18, 2026 21:59	Yuriy Lyfenko	CPPg++13.3.0	Success	4,316
Apr 18, 2026 21:58	Yuriy Lyfenko	CPPg++13.3.0	Success	4,317
Apr 18, 2026 20:56	Charles Cabergs	CPPg++13.3.0	Success	20,140
Apr 18, 2026 19:50	Myka Mayer	CPPg++13.3.0	Error
Apr 18, 2026 19:25	Myka Mayer	CPPg++13.3.0	Error
Apr 18, 2026 18:53	Charles Cabergs	CPPg++13.3.0	Success	20,136+1.25 RP
Apr 18, 2026 17:44	wn	CPPclang++18.1.3	Error
Apr 18, 2026 17:44	wn	CPPclang++18.1.3	Error
Apr 18, 2026 17:41	wn	CPPclang++18.1.3	Error
Apr 18, 2026 17:38	wn	CPPclang++18.1.3	Error
Apr 18, 2026 17:35	wn	CPPclang++18.1.3	Error
Apr 18, 2026 17:02	wn	CPPclang++18.1.3	Success	4,107
Apr 18, 2026 16:55	wn	CPPclang++18.1.3	Success	4,219
Apr 18, 2026 16:54	wn	CPPclang++18.1.3	Success	4,318
Apr 18, 2026 16:46	wn	CPPclang++18.1.3	Success	4,459
Apr 18, 2026 16:11	wn	CPPclang++18.1.3	Success	4,582
Apr 18, 2026 16:04	Yuriy Lyfenko	CPPg++13.3.0	Success	4,317
Apr 18, 2026 16:01	Yuriy Lyfenko	CPPg++13.3.0	Success	4,349
Apr 18, 2026 16:00	Yuriy Lyfenko	CPPg++13.3.0	Error
Apr 18, 2026 15:58	Yuriy Lyfenko	CPPg++13.3.0	Success	4,408
Apr 18, 2026 15:57	Yuriy Lyfenko	CPPg++13.3.0	Success	4,712
Apr 18, 2026 15:55	Yuriy Lyfenko	CPPg++13.3.0	Success	4,317
Apr 18, 2026 15:55	Yuriy Lyfenko	CPPg++13.3.0	Success	4,317
Apr 18, 2026 15:54	Yuriy Lyfenko	CPPg++13.3.0	Success	4,296
Apr 18, 2026 15:53	Yuriy Lyfenko	CPPg++13.3.0	Success	4,472

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