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	1:20.1.2-0ubuntu1~24.04.3	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	3.0.13-0ubuntu3.11	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
Sep 13, 2025 19:56	Tony Solomonik	RUSTrust-1.89.0	Success	67,082
Sep 13, 2025 19:55	Tony Solomonik	RUSTrust-1.89.0	Error
Sep 13, 2025 19:55	Tony Solomonik	RUSTrust-1.89.0	Success	117,840
Sep 13, 2025 19:55	Tony Solomonik	RUSTrust-1.89.0	Success	55,577
Sep 13, 2025 19:55	Tony Solomonik	RUSTrust-1.89.0	Success	69,291
Sep 13, 2025 19:51	Tony Solomonik	RUSTrust-1.89.0	Success	76,767
Sep 13, 2025 19:48	Tony Solomonik	RUSTrust-1.89.0	Success	77,059
Sep 13, 2025 19:43	Tony Solomonik	RUSTrust-1.89.0	Success	54,707
Sep 13, 2025 19:42	Tony Solomonik	RUSTrust-1.89.0	Success	49,850+50.69 RP
Sep 13, 2025 19:41	Tony Solomonik	RUSTrust-1.89.0	Success	107,181
Sep 13, 2025 19:40	Tony Solomonik	RUSTrust-1.89.0	Success	69,223
Sep 13, 2025 19:23	Tony Solomonik	RUSTrust-1.89.0	Success	115,825
Sep 13, 2025 19:17	Tony Solomonik	RUSTrust-1.89.0	Success	143,284
Sep 13, 2025 18:58	Tony Solomonik	RUSTrust-1.89.0	Success	66,841
Sep 13, 2025 18:56	Tony Solomonik	RUSTrust-1.89.0	Success	66,706+2.98 RP
Sep 13, 2025 18:50	Tony Solomonik	RUSTrust-1.89.0	Success	68,058+120.49 RP
Sep 13, 2025 18:49	Tony Solomonik	RUSTrust-1.89.0	Error
Sep 13, 2025 18:44	Tony Solomonik	RUSTrust-1.89.0	Error
Sep 13, 2025 18:40	Tony Solomonik	RUSTrust-1.89.0	Error
Sep 13, 2025 18:38	Tony Solomonik	RUSTrust-1.89.0	Error
Sep 13, 2025 18:37	Tony Solomonik	RUSTrust-1.89.0	Error
Sep 13, 2025 16:28	Tony Solomonik	RUSTrust-1.89.0	Success	378,166+26.44 RP
Sep 12, 2025 10:50	Aleksei Shahoika	CPPclang++18.1.3	Success	30,448
Sep 12, 2025 10:47	Aleksei Shahoika	CPPclang++18.1.3	Success	29,617+69.99 RP
Sep 11, 2025 11:02	Myles	CPPg++13.3.0	Success	63,415
Sep 11, 2025 10:52	Myles	CPPg++13.3.0	Success	63,413+47.57 RP
Sep 8, 2025 21:17	Adam Folwarczny	CPPclang++18.1.3	Error
Sep 8, 2025 21:13	Adam Folwarczny	CPPclang++18.1.3	Error
Sep 8, 2025 21:11	Adam Folwarczny	CPPg++13.3.0	Success	8,172
Sep 8, 2025 21:10	Adam Folwarczny	CPPclang++18.1.3	Success	7,991
Sep 8, 2025 21:05	Adam Folwarczny	CPPclang++18.1.3	Error
Sep 8, 2025 20:53	Adam Folwarczny	CPPclang++18.1.3	Success	8,363
Sep 8, 2025 20:46	Adam Folwarczny	CPPclang++18.1.3	Error
Sep 8, 2025 20:45	Adam Folwarczny	CPPclang++18.1.3	Error
Sep 8, 2025 20:34	Adam Folwarczny	CPPclang++18.1.3	Error
Sep 7, 2025 16:03	Aleksei Shahoika	CPPclang++18.1.3	Success	37,361+74.43 RP
Sep 7, 2025 08:55	Aleksei Shahoika	CPPclang++18.1.3	Success	51,753+45.04 RP
Sep 6, 2025 21:54	Yaga-Yoink	CPPg++13.3.0	Success	2,069,796+4.83 RP
Sep 6, 2025 20:36	Adam Folwarczny	CPPclang++18.1.3	Success	7,423
Sep 6, 2025 20:29	Aleksei Shahoika	CPPclang++18.1.3	Success	71,776
Sep 6, 2025 20:25	Adam Folwarczny	CPPclang++18.1.3	Error
Sep 6, 2025 20:24	Aleksei Shahoika	CPPclang++18.1.3	Error
Sep 6, 2025 20:23	Aleksei Shahoika	CPPclang++18.1.3	Success	71,768
Sep 6, 2025 20:21	Adam Folwarczny	CPPclang++18.1.3	Error
Sep 6, 2025 20:16	Aleksei Shahoika	CPPclang++18.1.3	Error
Sep 6, 2025 20:16	Adam Folwarczny	CPPclang++18.1.3	Error
Sep 6, 2025 19:45	Aleksei Shahoika	CPPclang++18.1.3	Error
Sep 6, 2025 19:43	Aleksei Shahoika	CPPclang++18.1.3	Error
Sep 6, 2025 16:08	Aleksei Shahoika	CPPclang++18.1.3	Success	67,483+148.19 RP
Sep 5, 2025 17:54	ndren	CPPg++13.3.0	Success	60,452
Sep 5, 2025 17:54	ndren	CPPg++13.3.0	Success	60,444
Sep 5, 2025 17:53	ndren	CPPg++13.3.0	Success	60,933
Sep 5, 2025 17:51	ndren	CPPg++13.3.0	Success	60,921
Sep 5, 2025 15:21	Petro Mudrievskyj	CPPclang++18.1.3	Success	30,500+327.87 RP
Sep 5, 2025 11:36	Petro Mudrievskyj	CPPclang++18.1.3	Error
Sep 5, 2025 11:33	Petro Mudrievskyj	CPPclang++18.1.3	Error
Sep 4, 2025 20:01	Adam Folwarczny	CPPclang++18.1.3	Success	7,416
Sep 4, 2025 20:00	Adam Folwarczny	CPPg++13.3.0	Success	7,902
Sep 3, 2025 22:16	Adam Folwarczny	CPPg++13.3.0	Success	7,921
Sep 3, 2025 22:16	Adam Folwarczny	CPPclang++18.1.3	Success	7,475
Sep 3, 2025 22:12	Adam Folwarczny	CPPclang++18.1.3	Success	7,440
Sep 3, 2025 21:55	Adam Folwarczny	CPPclang++18.1.3	Error
Sep 3, 2025 21:54	Adam Folwarczny	CPPclang++18.1.3	Error	+15.52 RP
Sep 3, 2025 21:49	Adam Folwarczny	CPPclang++18.1.3	Error	+36.25 RP
Sep 3, 2025 21:40	Adam Folwarczny	CPPclang++18.1.3	Success	7,413+87.47 RP
Sep 3, 2025 21:16	Adam Folwarczny	CPPclang++18.1.3	Error
Aug 31, 2025 21:41	Adam Folwarczny	CPPclang++18.1.3	Success	10,325
Aug 31, 2025 21:32	Adam Folwarczny	CPPclang++18.1.3	Success	7,927+2.07 RP
Aug 31, 2025 21:30	Adam Folwarczny	CPPg++13.3.0	Success	11,007
Aug 31, 2025 21:22	Adam Folwarczny	CPPclang++18.1.3	Error
Aug 31, 2025 21:20	Adam Folwarczny	CPPclang++18.1.3	Success	7,940+9.13 RP
Aug 31, 2025 21:17	Adam Folwarczny	CPPclang++18.1.3	Error
Aug 31, 2025 21:15	Adam Folwarczny	CPPclang++18.1.3	Success	7,998+29.01 RP
Aug 31, 2025 21:13	Adam Folwarczny	CPPclang++18.1.3	Success	8,188+7.12 RP
Aug 31, 2025 21:11	Adam Folwarczny	CPPclang++18.1.3	Success	8,236+3.23 RP
Aug 31, 2025 21:10	Adam Folwarczny	CPPclang++18.1.3	Success	8,265
Aug 31, 2025 20:51	Adam Folwarczny	CPPclang++18.1.3	Success	8,359
Aug 31, 2025 20:49	Adam Folwarczny	CPPclang++18.1.3	Error
Aug 31, 2025 20:44	Adam Folwarczny	CPPclang++18.1.3	Success	80,039
Aug 31, 2025 20:42	Adam Folwarczny	CPPclang++18.1.3	Success	80,149
Aug 30, 2025 21:50	Adam Folwarczny	CPPclang++18.1.3	Success	8,258+49.24 RP
Aug 30, 2025 21:49	Adam Folwarczny	CPPclang++18.1.3	Error
Aug 30, 2025 21:48	Adam Folwarczny	CPPclang++18.1.3	Success	8,608+95.16 RP
Aug 30, 2025 21:46	Adam Folwarczny	CPPclang++18.1.3	Success	9,376+55.84 RP
Aug 30, 2025 21:45	Adam Folwarczny	CPPclang++18.1.3	Success	10,094
Aug 30, 2025 21:37	Adam Folwarczny	CPPclang++18.1.3	Success	9,894+3.06 RP
Aug 30, 2025 21:35	Adam Folwarczny	CPPclang++18.1.3	Success	10,291
Aug 30, 2025 21:32	Adam Folwarczny	CPPclang++18.1.3	Success	9,924+8.76 RP
Aug 30, 2025 21:30	Adam Folwarczny	CPPclang++18.1.3	Success	10,011+26.33 RP
Aug 30, 2025 21:24	Adam Folwarczny	CPPclang++18.1.3	Success	10,294
Aug 30, 2025 21:22	Adam Folwarczny	CPPclang++18.1.3	Success	10,282+4.99 RP
Aug 30, 2025 21:18	Adam Folwarczny	CPPclang++18.1.3	Success	10,970
Aug 30, 2025 21:17	Adam Folwarczny	CPPclang++18.1.3	Success	10,335+1.31 RP
Aug 30, 2025 21:14	Adam Folwarczny	CPPclang++18.1.3	Error
Aug 30, 2025 21:05	Adam Folwarczny	CPPclang++18.1.3	Success	10,441
Aug 30, 2025 21:03	Adam Folwarczny	CPPclang++18.1.3	Success	10,393
Aug 30, 2025 20:55	Adam Folwarczny	CPPclang++18.1.3	Success	10,445
Aug 30, 2025 20:47	Adam Folwarczny	CPPclang++18.1.3	Success	10,349+1.77 RP
Aug 30, 2025 20:42	Adam Folwarczny	CPPclang++18.1.3	Error
Aug 30, 2025 20:40	Adam Folwarczny	CPPg++13.3.0	Success	13,190

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