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 18, 2026 23:42	wn	CPPclang++18.1.3	Success	5,815
Feb 18, 2026 23:40	wn	CPPclang++18.1.3	Success	6,758
Feb 18, 2026 23:36	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 18, 2026 23:34	wn	CPPclang++18.1.3	Success	6,443
Feb 18, 2026 23:24	Mikołaj Uzarski	CPPclang++18.1.3	Error
Feb 18, 2026 23:23	Mikołaj Uzarski	CPPclang++18.1.3	Error
Feb 18, 2026 23:22	Mikołaj Uzarski	CPPclang++18.1.3	Error
Feb 18, 2026 23:19	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,883
Feb 18, 2026 23:11	lipapipa	CPPg++13.3.0	Success	5,859+104.21 RP
Feb 18, 2026 23:04	Josu San Martin	CPPg++13.3.0	Success	6,644
Feb 18, 2026 22:58	wn	CPPclang++18.1.3	Success	5,682
Feb 18, 2026 22:54	wn	CPPclang++18.1.3	Success	5,431+31.98 RP
Feb 18, 2026 22:53	Mikołaj Uzarski	CPPclang++18.1.3	Success	16,731
Feb 18, 2026 22:52	wn	CPPclang++18.1.3	Success	5,547
Feb 18, 2026 22:52	Mikołaj Uzarski	CPPclang++18.1.3	Error
Feb 18, 2026 22:51	wn	CPPclang++18.1.3	Success	5,552
Feb 18, 2026 22:41	Josu San Martin	CPPg++13.3.0	Success	6,181
Feb 18, 2026 22:37	Serhii Sakhno	CPPg++13.3.0	Error
Feb 18, 2026 22:33	wn	CPPclang++18.1.3	Success	5,555
Feb 18, 2026 22:32	wn	CPPclang++18.1.3	Success	5,527+4.25 RP
Feb 18, 2026 22:31	wn	CPPclang++18.1.3	Success	5,772
Feb 18, 2026 22:30	Josu San Martin	CPPg++13.3.0	Success	6,342
Feb 18, 2026 22:29	wn	CPPclang++18.1.3	Success	6,061
Feb 18, 2026 22:26	Mikołaj Uzarski	CPPg++13.3.0	Success	7,965
Feb 18, 2026 22:24	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,792
Feb 18, 2026 22:23	wn	CPPclang++18.1.3	Success	5,811
Feb 18, 2026 22:21	wn	CPPclang++18.1.3	Success	5,765
Feb 18, 2026 22:21	wn	CPPclang++18.1.3	Success	5,649
Feb 18, 2026 22:21	wn	CPPclang++18.1.3	Success	5,642
Feb 18, 2026 22:19	wn	CPPclang++18.1.3	Success	5,612
Feb 18, 2026 22:17	wn	CPPclang++18.1.3	Success	5,725
Feb 18, 2026 22:11	Mikołaj Uzarski	CPPclang++18.1.3	Error
Feb 18, 2026 22:08	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,847
Feb 18, 2026 22:06	wn	CPPclang++18.1.3	Error
Feb 18, 2026 22:05	Mikołaj Uzarski	CPPclang++18.1.3	Success	6,168
Feb 18, 2026 22:03	wn	CPPclang++18.1.3	Success	5,779
Feb 18, 2026 22:02	Mikołaj Uzarski	CPPclang++18.1.3	Error
Feb 18, 2026 22:01	wn	CPPclang++18.1.3	Success	5,790
Feb 18, 2026 21:57	Serhii Sakhno	RUSTrust-1.93.1	Success	370,767+26.97 RP
Feb 18, 2026 21:54	Mikołaj Uzarski	CPPclang++18.1.3	Success	6,393
Feb 18, 2026 21:42	Mikołaj Uzarski	CPPclang++18.1.3	Success	66,849
Feb 18, 2026 21:30	wn	CPPclang++18.1.3	Error
Feb 18, 2026 21:27	wn	CPPclang++18.1.3	Success	5,760
Feb 18, 2026 21:26	lipapipa	CPPg++13.3.0	Success	6,275
Feb 18, 2026 21:25	lipapipa	CPPg++13.3.0	Success	6,240+15.26 RP
Feb 18, 2026 21:18	Mikołaj Uzarski	CPPclang++18.1.3	Error
Feb 18, 2026 21:14	Mikołaj Uzarski	CPPclang++18.1.3	Success	6,030
Feb 18, 2026 21:08	wn	CPPclang++18.1.3	Success	5,540+139.22 RP
Feb 18, 2026 21:08	wn	CPPclang++18.1.3	Success	6,003+211.29 RP
Feb 18, 2026 21:07	Mikołaj Uzarski	CPPclang++18.1.3	Success	6,030
Feb 18, 2026 21:02	wn	CPPclang++18.1.3	Success	26,642
Feb 18, 2026 21:01	Mikołaj Uzarski	CPPclang++18.1.3	Error
Feb 18, 2026 20:58	Mikołaj Uzarski	CPPclang++18.1.3	Success	6,124
Feb 18, 2026 20:57	Mikołaj Uzarski	CPPclang++18.1.3	Success	6,161
Feb 18, 2026 20:56	Alexander Krivolapov	RUSTrust-1.93.1	Success	16,060
Feb 18, 2026 20:55	Alexander Krivolapov	RUSTrust-1.93.1	Success	16,074
Feb 18, 2026 20:49	lipapipa	CPPg++13.3.0	Success	6,364
Feb 18, 2026 20:47	lipapipa	CPPg++13.3.0	Success	6,300+89.62 RP
Feb 18, 2026 20:44	Mikołaj Uzarski	CPPclang++18.1.3	Success	6,389
Feb 18, 2026 20:42	Mikołaj Uzarski	CPPclang++18.1.3	Error
Feb 18, 2026 20:40	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,802
Feb 18, 2026 20:37	Mikołaj Uzarski	CPPclang++18.1.3	Error
Feb 18, 2026 20:35	wn	CPPclang++18.1.3	Success	7,258
Feb 18, 2026 20:34	Mikołaj Uzarski	CPPclang++18.1.3	Success	6,039
Feb 18, 2026 20:33	Mikołaj Uzarski	CPPclang++18.1.3	Success	6,068
Feb 18, 2026 20:31	Juraj Zelman	RUSTrust-1.93.1	Success	8,970+54.72 RP
Feb 18, 2026 20:31	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,931
Feb 18, 2026 20:30	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,778+0.90 RP
Feb 18, 2026 20:30	wn	CPPclang++18.1.3	Success	7,387
Feb 18, 2026 20:29	wn	CPPclang++18.1.3	Success	7,512
Feb 18, 2026 20:29	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 18, 2026 20:29	wn	CPPclang++18.1.3	Success	7,324
Feb 18, 2026 20:26	Mikołaj Uzarski	CPPclang++18.1.3	Success	6,218
Feb 18, 2026 20:19	Mikołaj Uzarski	CPPclang++18.1.3	Success	7,024
Feb 18, 2026 20:19	Mikołaj Uzarski	CPPclang++18.1.3	Success	6,191
Feb 18, 2026 20:17	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,900
Feb 18, 2026 20:16	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,790
Feb 18, 2026 20:15	Mikołaj Uzarski	CPPclang++18.1.3	Error
Feb 18, 2026 20:12	Mikołaj Uzarski	CPPclang++18.1.3	Success	7,505
Feb 18, 2026 20:11	wn	CPPclang++18.1.3	Success	7,206
Feb 18, 2026 20:10	Daniel Mastalerz	CPPclang++18.1.3	Success	8,084
Feb 18, 2026 20:09	Juraj Zelman	RUSTrust-1.93.1	Success	9,445
Feb 18, 2026 20:06	wn	CPPclang++18.1.3	Success	6,987
Feb 18, 2026 20:05	Mikołaj Uzarski	CPPclang++18.1.3	Success	6,887
Feb 18, 2026 20:05	Mikołaj Uzarski	CPPclang++18.1.3	Error
Feb 18, 2026 20:04	wn	CPPclang++18.1.3	Success	7,163
Feb 18, 2026 20:02	wn	CPPclang++18.1.3	Error
Feb 18, 2026 20:01	Mikołaj Uzarski	CPPclang++18.1.3	Success	6,248
Feb 18, 2026 20:00	wn	CPPclang++18.1.3	Success	7,245
Feb 18, 2026 19:55	Mikołaj Uzarski	CPPclang++18.1.3	Success	6,362
Feb 18, 2026 19:55	wn	CPPclang++18.1.3	Error
Feb 18, 2026 19:53	wn	CPPclang++18.1.3	Error
Feb 18, 2026 19:52	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 18, 2026 19:51	wn	CPPclang++18.1.3	Success	7,228
Feb 18, 2026 19:51	Mikołaj Uzarski	CPPclang++18.1.3	Success	6,808
Feb 18, 2026 19:50	Mikołaj Uzarski	CPPclang++18.1.3	Success	6,665
Feb 18, 2026 19:44	Mikołaj Uzarski	CPPclang++18.1.3	Success	5,896
Feb 18, 2026 19:43	wn	CPPclang++18.1.3	Success	7,083
Feb 18, 2026 19:42	Daniel Mastalerz	CPPclang++18.1.3	Error
Feb 18, 2026 19:40	Mikołaj Uzarski	CPPclang++18.1.3	Success	6,101

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