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
Dec 3, 2025 14:57	Rajarshi Basu	CPPg++13.3.0	Success	12,062
Dec 3, 2025 14:55	Rajarshi Basu	CPPg++13.3.0	Success	11,657+11.69 RP
Dec 3, 2025 14:54	Rajarshi Basu	CPPg++13.3.0	Success	12,791
Dec 3, 2025 14:54	Rajarshi Basu	CPPg++13.3.0	Success	12,759
Dec 3, 2025 14:25	Rajarshi Basu	CPPg++13.3.0	Success	12,046
Dec 3, 2025 14:23	Rajarshi Basu	CPPg++13.3.0	Error
Dec 3, 2025 12:54	Rajarshi Basu	CPPg++13.3.0	Success	21,050
Dec 1, 2025 19:24	Rajarshi Basu	CPPg++13.3.0	Success	11,818+16.08 RP
Dec 1, 2025 19:13	Rajarshi Basu	CPPg++13.3.0	Success	12,047+3.16 RP
Dec 1, 2025 19:12	Rajarshi Basu	CPPg++13.3.0	Success	12,093+3.00 RP
Dec 1, 2025 19:11	Rajarshi Basu	CPPg++13.3.0	Success	12,137+10.72 RP
Dec 1, 2025 19:10	Rajarshi Basu	CPPg++13.3.0	Success	12,297+6.10 RP
Dec 1, 2025 19:09	Rajarshi Basu	CPPg++13.3.0	Success	12,390+8.70 RP
Dec 1, 2025 19:08	Rajarshi Basu	CPPg++13.3.0	Success	12,525+62.24 RP
Dec 1, 2025 19:00	Rajarshi Basu	CPPg++13.3.0	Success	13,989
Dec 1, 2025 18:56	Rajarshi Basu	CPPg++13.3.0	Success	15,349
Nov 30, 2025 19:52	RecursiveCatnip	RUSTrust-1.91.1	Success	60,039
Nov 30, 2025 19:51	RecursiveCatnip	RUSTrust-1.91.1	Success	58,668
Nov 30, 2025 19:06	RecursiveCatnip	RUSTrust-1.86.0	Success	160,892
Nov 30, 2025 19:05	RecursiveCatnip	RUSTrust-1.91.1	Success	159,464
Nov 30, 2025 19:04	RecursiveCatnip	RUSTrust-1.91.1	Success	156,400
Nov 30, 2025 19:02	Rajarshi Basu	CPPg++13.3.0	Success	14,064
Nov 30, 2025 18:54	Rajarshi Basu	CPPg++13.3.0	Error
Nov 30, 2025 18:49	Rajarshi Basu	CPPg++13.3.0	Success	13,607
Nov 30, 2025 18:42	Rajarshi Basu	CPPg++13.3.0	Success	13,584+9.84 RP
Nov 30, 2025 18:21	Rajarshi Basu	CPPg++13.3.0	Success	13,852
Nov 30, 2025 18:21	Rajarshi Basu	CPPg++13.3.0	Success	13,825
Nov 30, 2025 18:17	Rajarshi Basu	CPPg++13.3.0	Success	13,805
Nov 30, 2025 15:56	Rajarshi Basu	CPPg++13.3.0	Success	14,188
Nov 30, 2025 15:55	Rajarshi Basu	CPPg++13.3.0	Success	13,768+4.14 RP
Nov 30, 2025 15:55	Rajarshi Basu	CPPg++13.3.0	Success	13,848
Nov 30, 2025 15:54	Rajarshi Basu	CPPclang++18.1.3	Success	19,004
Nov 30, 2025 15:53	Rajarshi Basu	CPPclang++18.1.3	Success	19,004
Nov 30, 2025 12:23	Rajarshi Basu	CPPg++13.3.0	Success	13,867
Nov 30, 2025 12:23	Rajarshi Basu	CPPg++13.3.0	Success	16,155
Nov 30, 2025 12:22	Rajarshi Basu	CPPg++13.3.0	Success	16,146
Nov 30, 2025 11:35	Rajarshi Basu	CPPg++13.3.0	Success	13,847+101.87 RP
Nov 30, 2025 11:19	Sina	CPPg++13.3.0	Error
Nov 30, 2025 11:19	Sina	CPPg++13.3.0	Success	112,705
Nov 30, 2025 10:32	Rajarshi Basu	CPPg++13.3.0	Error
Nov 30, 2025 10:32	Rajarshi Basu	CPPg++13.3.0	Success	17,573
Nov 30, 2025 10:31	Rajarshi Basu	CPPg++13.3.0	Error
Nov 30, 2025 10:31	Rajarshi Basu	CPPg++13.3.0	Success	16,756
Nov 30, 2025 10:30	Rajarshi Basu	CPPg++13.3.0	Error
Nov 30, 2025 09:10	Rajarshi Basu	CPPg++13.3.0	Success	19,797
Nov 30, 2025 08:54	Sina	CPPg++13.3.0	Success	114,051
Nov 30, 2025 08:26	Sina	CPPg++13.3.0	Success	111,820+7.60 RP
Nov 30, 2025 08:05	Sina	CPPg++13.3.0	Error
Nov 30, 2025 07:41	Sina	CPPg++13.3.0	Error
Nov 30, 2025 07:39	Sina	CPPg++13.3.0	Error
Nov 30, 2025 07:38	Sina	CPPg++13.3.0	Error
Nov 30, 2025 07:16	Jeffrey Jian	CPPg++13.3.0	Success	64,861+14.26 RP
Nov 30, 2025 06:37	Jeffrey Jian	CPPg++13.3.0	Success	71,471+42.16 RP
Nov 29, 2025 22:40	Rajarshi Basu	CPPg++13.3.0	Success	16,121+86.95 RP
Nov 29, 2025 21:54	Rajarshi Basu	CPPg++13.3.0	Success	19,448
Nov 29, 2025 21:52	Rajarshi Basu	CPPg++13.3.0	Success	19,282
Nov 29, 2025 21:43	Rajarshi Basu	CPPg++13.3.0	Success	21,529
Nov 29, 2025 21:37	Rajarshi Basu	CPPg++13.3.0	Success	21,272
Nov 29, 2025 21:20	Rajarshi Basu	CPPg++13.3.0	Error
Nov 29, 2025 21:18	Rajarshi Basu	CPPg++13.3.0	Success	18,749+93.63 RP
Nov 29, 2025 20:58	Rajarshi Basu	CPPg++13.3.0	Success	22,741+48.01 RP
Nov 29, 2025 19:52	Rajarshi Basu	CPPg++13.3.0	Success	25,601
Nov 29, 2025 19:48	Rajarshi Basu	CPPg++13.3.0	Success	25,528+37.07 RP
Nov 29, 2025 19:12	Rajarshi Basu	CPPg++13.3.0	Success	30,349
Nov 29, 2025 18:29	Rajarshi Basu	CPPg++13.3.0	Success	28,783
Nov 29, 2025 18:19	Rajarshi Basu	CPPg++13.3.0	Success	28,196+167.58 RP
Nov 29, 2025 17:47	Rajarshi Basu	CPPg++13.3.0	Error
Nov 28, 2025 09:09	Jeffrey Jian	CPPg++13.3.0	Error
Nov 27, 2025 18:07	Yuriy Lyfenko	CPPg++13.3.0	Error
Nov 27, 2025 18:06	Yuriy Lyfenko	CPPg++13.3.0	Error
Nov 25, 2025 12:48	Ham-Ham	CPPg++13.3.0	Error
Nov 25, 2025 12:41	Ham-Ham	CPPclang++18.1.3	Success	56,273
Nov 25, 2025 12:41	Ham-Ham	CPPclang++18.1.3	Success	56,174
Nov 25, 2025 12:39	Ham-Ham	CPPg++13.3.0	Success	51,104+0.20 RP
Nov 25, 2025 12:38	Ham-Ham	CPPg++13.3.0	Success	64,710
Nov 25, 2025 12:37	Ham-Ham	CPPg++13.3.0	Success	64,113
Nov 25, 2025 12:37	Ham-Ham	CPPg++13.3.0	Success	72,594
Nov 25, 2025 10:19	Ham-Ham	CPPg++13.3.0	Success	54,205
Nov 25, 2025 10:16	Ham-Ham	CPPg++13.3.0	Error
Nov 25, 2025 10:10	Ham-Ham	CPPg++13.3.0	Error
Nov 25, 2025 10:06	Ham-Ham	CPPg++13.3.0	Success	51,159
Nov 25, 2025 10:01	Ham-Ham	CPPg++13.3.0	Error
Nov 25, 2025 09:59	Ham-Ham	CPPg++13.3.0	Success	51,409
Nov 25, 2025 09:58	Ham-Ham	CPPg++13.3.0	Success	51,279
Nov 25, 2025 09:57	Ham-Ham	CPPg++13.3.0	Success	51,249
Nov 25, 2025 09:56	Ham-Ham	CPPg++13.3.0	Error
Nov 25, 2025 09:55	Ham-Ham	CPPg++13.3.0	Success	69,478
Nov 25, 2025 09:54	Ham-Ham	CPPg++13.3.0	Error
Nov 25, 2025 09:52	Ham-Ham	CPPg++13.3.0	Error
Nov 25, 2025 09:46	Ham-Ham	CPPg++13.3.0	Success	51,156+0.24 RP
Nov 25, 2025 09:40	Ham-Ham	CPPg++13.3.0	Success	51,218+0.27 RP
Nov 25, 2025 09:38	Ham-Ham	CPPg++13.3.0	Error
Nov 25, 2025 09:37	Ham-Ham	CPPg++13.3.0	Success	51,605
Nov 25, 2025 09:37	Ham-Ham	CPPg++13.3.0	Success	51,354
Nov 25, 2025 09:36	Ham-Ham	CPPg++13.3.0	Success	51,290+0.05 RP
Nov 25, 2025 09:36	Ham-Ham	CPPg++13.3.0	Success	51,303+1.61 RP
Nov 25, 2025 09:35	Ham-Ham	CPPg++13.3.0	Error
Nov 25, 2025 09:35	Ham-Ham	CPPg++13.3.0	Error
Nov 25, 2025 09:32	Ham-Ham	CPPg++13.3.0	Error
Nov 25, 2025 09:24	Ham-Ham	CPPg++13.3.0	Error

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