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
Mar 13, 2026 12:47	Dominique Garmier	CPPg++13.3.0	Success	79,353
Mar 13, 2026 12:47	Dominique Garmier	CPPclang++18.1.3	Success	24,838+3.02 RP
Mar 13, 2026 12:45	Eric Ceglie	CPPclang++18.1.3	Success	27,063
Mar 13, 2026 12:45	Eric Ceglie	CPPclang++18.1.3	Success	26,665
Mar 13, 2026 12:45	Eric Ceglie	CPPclang++18.1.3	Success	26,590+4.44 RP
Mar 13, 2026 12:45	Eric Ceglie	CPPclang++18.1.3	Success	26,972
Mar 13, 2026 12:44	Dominique Garmier	CPPg++13.3.0	Success	29,782
Mar 13, 2026 12:44	Eric Ceglie	CPPclang++18.1.3	Success	27,843
Mar 13, 2026 12:44	Eric Ceglie	CPPclang++18.1.3	Success	27,588
Mar 13, 2026 12:43	Eric Ceglie	CPPclang++18.1.3	Success	26,908+0.79 RP
Mar 13, 2026 12:43	Eric Ceglie	CPPclang++18.1.3	Success	27,965
Mar 13, 2026 12:43	Eric Ceglie	CPPclang++18.1.3	Success	26,965+13.49 RP
Mar 13, 2026 12:43	Dominique Garmier	CPPg++13.3.0	Success	132,089
Mar 13, 2026 12:42	Eric Ceglie	CPPg++13.3.0	Success	34,026
Mar 13, 2026 12:42	Eric Ceglie	CPPg++13.3.0	Success	34,006
Mar 13, 2026 12:41	Eric Ceglie	CPPg++13.3.0	Success	38,136
Mar 13, 2026 12:41	Eric Ceglie	CPPg++13.3.0	Success	37,151
Mar 13, 2026 12:40	Eric Ceglie	CPPg++13.3.0	Success	43,911
Mar 13, 2026 12:39	Eric Ceglie	CPPg++13.3.0	Success	32,038
Mar 13, 2026 12:39	Eric Ceglie	CPPg++13.3.0	Success	32,042
Mar 13, 2026 12:39	Eric Ceglie	CPPg++13.3.0	Success	34,070
Mar 13, 2026 12:38	Dominique Garmier	CPPg++13.3.0	Success	30,550
Mar 13, 2026 12:36	Eric Ceglie	CPPg++13.3.0	Success	36,394
Mar 13, 2026 12:36	Eric Ceglie	CPPclang++18.1.3	Success	27,983+4.46 RP
Mar 13, 2026 12:36	Eric Ceglie	CPPg++13.3.0	Success	29,347
Mar 13, 2026 12:35	Eric Ceglie	CPPg++13.3.0	Success	34,018
Mar 13, 2026 12:35	Eric Ceglie	CPPclang++18.1.3	Success	35,681
Mar 13, 2026 12:32	Eric Ceglie	CPPg++13.3.0	Success	28,337+71.53 RP
Mar 13, 2026 12:32	Eric Ceglie	CPPg++13.3.0	Success	37,969
Mar 13, 2026 12:32	Eric Ceglie	CPPclang++18.1.3	Success	38,221
Mar 13, 2026 12:23	Eric Ceglie	CPPg++13.3.0	Success	35,541+12.35 RP
Mar 13, 2026 12:14	olliecrow	CPPg++13.3.0	Error
Mar 13, 2026 12:05	Eric Ceglie	CPPg++13.3.0	Success	37,173+88.13 RP
Mar 13, 2026 12:00	olliecrow	CPPclang++18.1.3	Error
Mar 13, 2026 11:44	Eric Ceglie	CPPg++13.3.0	Success	61,647
Mar 13, 2026 11:40	Eric Ceglie	CPPg++13.3.0	Success	64,222
Mar 13, 2026 11:32	zielaj	CPPclang++18.1.3	Success	3,764
Mar 13, 2026 11:18	Eric Ceglie	RUSTrust-1.94.0	Success	86,942
Mar 13, 2026 11:16	Eric Ceglie	RUSTrust-1.94.0	Success	90,457
Mar 13, 2026 11:14	Eric Ceglie	CPPg++13.3.0	Success	55,284+180.88 RP
Mar 13, 2026 11:12	olliecrow	CPPclang++18.1.3	Error
Mar 13, 2026 11:07	olliecrow	CPPclang++18.1.3	Error
Mar 13, 2026 11:02	olliecrow	CPPclang++18.1.3	Error
Mar 13, 2026 10:49	Dominique Garmier	CPPg++13.3.0	Success	25,026+92.74 RP
Mar 13, 2026 10:35	Hung T.Nguyen	CPPg++13.3.0	Success	51,860
Mar 13, 2026 10:32	Hung T.Nguyen	CPPg++13.3.0	Success	52,450
Mar 13, 2026 10:29	Hung T.Nguyen	CPPg++13.3.0	Success	48,705+17.20 RP
Mar 13, 2026 10:26	Hung T.Nguyen	CPPg++13.3.0	Error
Mar 13, 2026 10:24	Hung T.Nguyen	CPPg++13.3.0	Error
Mar 13, 2026 10:22	Hung T.Nguyen	CPPg++13.3.0	Error
Mar 13, 2026 10:11	Hung T.Nguyen	CPPg++13.3.0	Success	92,492
Mar 13, 2026 10:09	Dominique Garmier	CPPg++13.3.0	Success	32,590+29.73 RP
Mar 13, 2026 10:08	Hung T.Nguyen	CPPg++13.3.0	Success	53,158+25.60 RP
Mar 13, 2026 10:05	Hung T.Nguyen	CPPg++13.3.0	Success	70,880
Mar 13, 2026 10:03	Dominique Garmier	CPPg++13.3.0	Success	99,883
Mar 13, 2026 10:02	Hung T.Nguyen	CPPg++13.3.0	Success	61,532+157.77 RP
Mar 13, 2026 10:01	Dominique Garmier	CPPg++13.3.0	Success	36,087+113.63 RP
Mar 13, 2026 09:56	Hung T.Nguyen	CPPg++13.3.0	Success	2,108,598+4.74 RP
Mar 13, 2026 09:46	Dominique Garmier	CPPg++13.3.0	Success	61,171+24.84 RP
Mar 13, 2026 09:39	Dominique Garmier	CPPg++13.3.0	Success	72,486
Mar 13, 2026 09:24	Dominique Garmier	CPPg++13.3.0	Success	72,131+10.36 RP
Mar 13, 2026 09:18	Dominique Garmier	CPPg++13.3.0	Success	77,957+128.28 RP
Mar 13, 2026 08:57	olliecrow	CPPclang++18.1.3	Error	+226.28 RP
Mar 13, 2026 08:18	olliecrow	CPPclang++18.1.3	Error	+855.39 RP
Mar 13, 2026 06:55	olliecrow	CPPclang++18.1.3	Error	+3'576.52 RP
Mar 13, 2026 05:46	olliecrow	CPPclang++18.1.3	Error
Mar 13, 2026 05:33	olliecrow	CPPclang++18.1.3	Error
Mar 13, 2026 05:05	olliecrow	CPPclang++18.1.3	Error
Mar 13, 2026 04:49	olliecrow	CPPclang++18.1.3	Error
Mar 13, 2026 04:46	olliecrow	CPPclang++18.1.3	Error	+6.86 RP
Mar 13, 2026 04:05	olliecrow	CPPclang++18.1.3	Error	+465.63 RP
Mar 13, 2026 04:03	olliecrow	CPPclang++18.1.3	Error
Mar 13, 2026 03:58	olliecrow	CPPclang++18.1.3	Error
Mar 13, 2026 03:52	olliecrow	CPPclang++18.1.3	Error
Mar 13, 2026 03:42	olliecrow	CPPclang++18.1.3	Error	+143.80 RP
Mar 13, 2026 03:36	olliecrow	CPPclang++18.1.3	Error
Mar 13, 2026 03:32	olliecrow	CPPclang++18.1.3	Error
Mar 13, 2026 03:31	olliecrow	CPPclang++18.1.3	Error	+685.30 RP
Mar 13, 2026 03:29	olliecrow	CPPclang++18.1.3	Error	+16.90 RP
Mar 13, 2026 03:25	olliecrow	CPPclang++18.1.3	Error	+135.09 RP
Mar 13, 2026 01:22	zielaj	CPPclang++18.1.3	Error
Mar 13, 2026 01:21	zielaj	CPPclang++18.1.3	Error
Mar 13, 2026 01:19	zielaj	CPPclang++18.1.3	Error
Mar 13, 2026 01:19	zielaj	CPPclang++18.1.3	Error
Mar 13, 2026 01:18	zielaj	CPPclang++18.1.3	Error
Mar 13, 2026 01:17	zielaj	CPPclang++18.1.3	Error
Mar 13, 2026 00:52	zielaj	CPPclang++18.1.3	Error
Mar 13, 2026 00:49	zielaj	CPPclang++18.1.3	Error
Mar 13, 2026 00:46	zielaj	CPPclang++18.1.3	Error
Mar 13, 2026 00:42	zielaj	CPPclang++18.1.3	Error
Mar 13, 2026 00:35	zielaj	CPPclang++18.1.3	Error
Mar 13, 2026 00:34	zielaj	CPPclang++18.1.3	Error
Mar 13, 2026 00:26	zielaj	CPPclang++18.1.3	Error
Mar 13, 2026 00:23	zielaj	CPPclang++18.1.3	Error
Mar 13, 2026 00:23	Benn Tan	CPPclang++18.1.3	Success	6,898+214.06 RP
Mar 13, 2026 00:21	zielaj	CPPclang++18.1.3	Error
Mar 13, 2026 00:17	zielaj	CPPclang++18.1.3	Error
Mar 13, 2026 00:16	zielaj	CPPclang++18.1.3	Error
Mar 13, 2026 00:14	zielaj	CPPclang++18.1.3	Error
Mar 13, 2026 00:13	zielaj	CPPclang++18.1.3	Error

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