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 10, 2026 20:01	Daniel Mastalerz	CPPclang++18.1.3	Success	14,624
Feb 10, 2026 19:58	Aleksandr Medvedev	CPPclang++18.1.3	Success	2,068,564
Feb 10, 2026 19:56	Daniel Mastalerz	CPPclang++18.1.3	Success	8,526
Feb 10, 2026 19:54	Aleksandr Medvedev	CPPclang++18.1.3	Success	2,068,701
Feb 10, 2026 19:53	Aleksandr Medvedev	CPPg++13.3.0	Success	2,070,222+4.83 RP
Feb 10, 2026 19:41	Daniel Mastalerz	CPPclang++18.1.3	Success	8,393
Feb 10, 2026 19:41	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 10, 2026 19:40	Daniel Mastalerz	CPPclang++18.1.3	Success	8,459
Feb 10, 2026 19:39	Daniel Mastalerz	CPPclang++18.1.3	Success	8,599
Feb 10, 2026 19:39	Daniel Mastalerz	CPPclang++18.1.3	Success	8,812
Feb 10, 2026 19:36	Daniel Mastalerz	CPPclang++18.1.3	Success	10,288
Feb 10, 2026 19:35	Daniel Mastalerz	CPPclang++18.1.3	Success	10,261
Feb 10, 2026 19:34	Mikołaj Uzarski	CPPclang++18.1.3	Success	7,096+324.29 RP
Feb 10, 2026 19:32	Mikołaj Uzarski	CPPclang++18.1.3	Error
Feb 10, 2026 19:27	Daniel Mastalerz	CPPclang++18.1.3	Success	8,853
Feb 10, 2026 19:27	Mikołaj Uzarski	CPPclang++18.1.3	Success	9,217+31.21 RP
Feb 10, 2026 19:20	Daniel Mastalerz	CPPclang++18.1.3	Success	8,416
Feb 10, 2026 19:19	Daniel Mastalerz	CPPclang++18.1.3	Success	8,540
Feb 10, 2026 19:18	Mikołaj Uzarski	CPPclang++18.1.3	Error
Feb 10, 2026 19:17	Daniel Mastalerz	CPPclang++18.1.3	Success	8,376
Feb 10, 2026 19:17	Mikołaj Uzarski	CPPclang++18.1.3	Error
Feb 10, 2026 19:15	Daniel Mastalerz	CPPclang++18.1.3	Success	8,245
Feb 10, 2026 19:08	Daniel Mastalerz	CPPclang++18.1.3	Success	8,231+9.95 RP
Feb 10, 2026 19:06	Daniel Mastalerz	CPPclang++18.1.3	Success	8,299+24.19 RP
Feb 10, 2026 19:02	Daniel Mastalerz	CPPclang++18.1.3	Success	8,581
Feb 10, 2026 19:00	Daniel Mastalerz	CPPclang++18.1.3	Success	8,488
Feb 10, 2026 18:42	nun	RUSTrust-1.93.0	Error
Feb 10, 2026 18:41	nun	RUSTrust-1.93.0	Error
Feb 10, 2026 18:40	nun	RUSTrust-1.93.0	Error
Feb 10, 2026 17:24	Daniel Mastalerz	CPPclang++18.1.3	Success	8,476
Feb 10, 2026 17:23	Daniel Mastalerz	CPPclang++18.1.3	Success	77,857
Feb 10, 2026 17:21	Daniel Mastalerz	CPPclang++18.1.3	Success	8,618
Feb 10, 2026 17:20	Daniel Mastalerz	CPPclang++18.1.3	Success	8,469
Feb 10, 2026 17:18	Daniel Mastalerz	CPPclang++18.1.3	Success	9,340
Feb 10, 2026 17:09	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 10, 2026 16:54	Daniel Mastalerz	CPPclang++18.1.3	Success	9,731
Feb 10, 2026 16:53	Daniel Mastalerz	CPPclang++18.1.3	Success	9,718
Feb 10, 2026 16:52	Daniel Mastalerz	CPPclang++18.1.3	Success	8,469+0.84 RP
Feb 10, 2026 16:51	Daniel Mastalerz	CPPclang++18.1.3	Success	9,739
Feb 10, 2026 16:50	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 10, 2026 16:31	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 10, 2026 16:29	Daniel Mastalerz	CPPclang++18.1.3	Success	8,475+127.53 RP
Feb 10, 2026 16:05	lipapipa	CPPg++13.3.0	Success	8,502+120.23 RP
Feb 10, 2026 12:59	Satyajeet Sindhiyani	CPPg++13.3.0	Success	64,167+155.84 RP
Feb 10, 2026 04:29	lipapipa	CPPg++13.3.0	Success	9,470+59.85 RP
Feb 10, 2026 04:13	lipapipa	CPPg++13.3.0	Success	31,214
Feb 10, 2026 04:13	lipapipa	CPPg++13.3.0	Success	15,457
Feb 9, 2026 21:08	Daniel Mastalerz	CPPclang++18.1.3	Success	96,223
Feb 9, 2026 21:02	Daniel Mastalerz	CPPg++13.3.0	Success	10,106
Feb 9, 2026 20:58	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 9, 2026 20:58	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 9, 2026 20:57	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 9, 2026 20:56	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 9, 2026 20:55	Daniel Mastalerz	CPPclang++18.1.3	Success	9,659
Feb 9, 2026 20:53	Daniel Mastalerz	CPPclang++18.1.3	Success	9,535
Feb 9, 2026 20:51	Daniel Mastalerz	CPPclang++18.1.3	Success	9,502+0.55 RP
Feb 9, 2026 20:44	Daniel Mastalerz	CPPg++13.3.0	Success	13,641
Feb 9, 2026 20:44	Daniel Mastalerz	CPPclang++18.1.3	Success	13,222
Feb 9, 2026 20:39	Daniel Mastalerz	CPPclang++18.1.3	Success	9,507+37.04 RP
Feb 9, 2026 20:39	Daniel Mastalerz	CPPg++13.3.0	Success	9,854+16.91 RP
Feb 9, 2026 20:34	Daniel Mastalerz	CPPclang++18.1.3	Success	11,204
Feb 9, 2026 20:34	Daniel Mastalerz	CPPg++13.3.0	Success	12,890
Feb 9, 2026 20:26	Daniel Mastalerz	CPPg++13.3.0	Success	10,026
Feb 9, 2026 20:25	Daniel Mastalerz	CPPg++13.3.0	Success	11,416
Feb 9, 2026 20:02	Daniel Mastalerz	CPPg++13.3.0	Success	10,021+37.11 RP
Feb 9, 2026 20:01	Daniel Mastalerz	CPPclang++18.1.3	Success	10,408+13.11 RP
Feb 9, 2026 19:29	Ayush Sharma	CPPg++13.3.0	Success	478,267
Feb 9, 2026 19:29	Daniel Mastalerz	CPPclang++18.1.3	Success	10,568
Feb 9, 2026 19:07	Ayush Sharma	CPPg++13.3.0	Success	175,359+0.03 RP
Feb 9, 2026 18:59	Ayush Sharma	CPPg++13.3.0	Success	175,463+0.84 RP
Feb 9, 2026 18:50	nun	RUSTrust-1.93.0	Success	58,813+59.75 RP
Feb 9, 2026 18:49	Ayush Sharma	CPPg++13.3.0	Success	178,101+51.26 RP
Feb 9, 2026 18:46	nun	RUSTrust-1.93.0	Error
Feb 9, 2026 18:43	nun	RUSTrust-1.93.0	Success	90,679+45.58 RP
Feb 9, 2026 18:26	nun	RUSTrust-1.93.0	Success	154,551+37.65 RP
Feb 9, 2026 18:08	Mikołaj Uzarski	CPPg++13.3.0	Success	10,711
Feb 9, 2026 18:06	Mikołaj Uzarski	CPPclang++18.1.3	Success	9,490+114.77 RP
Feb 9, 2026 16:58	lipapipa	CPPg++13.3.0	Success	10,039+51.47 RP
Feb 9, 2026 16:49	nun	RUSTrust-1.93.0	Success	369,649+27.05 RP
Feb 9, 2026 16:45	lipapipa	CPPg++13.3.0	Success	10,586+118.06 RP
Feb 9, 2026 16:18	lipapipa	CPPg++13.3.0	Success	12,098+98.57 RP
Feb 9, 2026 16:05	lipapipa	CPPg++13.3.0	Success	42,397
Feb 8, 2026 22:40	Mikołaj Uzarski	CPPclang++18.1.3	Error
Feb 8, 2026 22:39	Mikołaj Uzarski	CPPg++13.3.0	Error
Feb 8, 2026 22:38	Mikołaj Uzarski	CPPg++13.3.0	Error
Feb 8, 2026 21:59	Mikołaj Uzarski	CPPg++13.3.0	Error
Feb 8, 2026 21:56	Mikołaj Uzarski	CPPg++13.3.0	Error
Feb 8, 2026 21:54	Mikołaj Uzarski	CPPg++13.3.0	Success	10,652
Feb 8, 2026 21:50	Mikołaj Uzarski	CPPg++13.3.0	Success	10,657
Feb 8, 2026 20:29	Daniel Mastalerz	CPPclang++18.1.3	Success	11,862
Feb 8, 2026 20:26	Daniel Mastalerz	CPPclang++18.1.3	Success	10,552+8.72 RP
Feb 8, 2026 20:20	Daniel Mastalerz	CPPclang++18.1.3	Success	10,650+8.73 RP
Feb 8, 2026 19:35	Mikołaj Uzarski	CPPg++13.3.0	Success	10,651
Feb 8, 2026 19:29	Mikołaj Uzarski	CPPg++13.3.0	Success	10,650+324.75 RP
Feb 8, 2026 19:17	Mikołaj Uzarski	CPPg++13.3.0	Error
Feb 8, 2026 19:09	Mikołaj Uzarski	CPPg++13.3.0	Success	16,436
Feb 8, 2026 19:05	Mikołaj Uzarski	CPPg++13.3.0	Error
Feb 8, 2026 18:57	Mikołaj Uzarski	CPPg++13.3.0	Error
Feb 8, 2026 18:44	Mikołaj Uzarski	CPPg++13.3.0	Success	16,817
Feb 8, 2026 18:34	Mikołaj Uzarski	CPPg++13.3.0	Success	16,281+349.80 RP

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