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 17, 2026 02:45	Andrew Epstein	CPPg++14.2.0	Success	3,370+68.81 RP
Sep 17, 2026 02:44	Andrew Epstein	CPPg++14.2.0	Success	90,350
Sep 17, 2026 02:44	Victor Mercklé	CPPg++14.2.0	Success	28,002
Sep 17, 2026 02:43	Andrew Epstein	CPPg++14.2.0	Success	5,020
Sep 17, 2026 02:41	Andrew Epstein	CPPg++14.2.0	Success	7,580
Sep 17, 2026 02:37	Andrew Epstein	CPPg++14.2.0	Success	3,496
Sep 17, 2026 02:36	Andrew Epstein	CPPg++14.2.0	Success	52,063
Sep 17, 2026 02:34	Andrew Epstein	CPPg++14.2.0	Success	9,965
Sep 17, 2026 02:32	Andrew Epstein	CPPg++14.2.0	Success	81,411
Sep 17, 2026 02:30	Andrew Epstein	CPPg++14.2.0	Success	87,080
Sep 17, 2026 02:29	Andrew Epstein	CPPg++14.2.0	Success	3,450+40.59 RP
Sep 17, 2026 02:28	Andrew Epstein	CPPg++14.2.0	Success	5,131
Sep 17, 2026 02:26	Andrew Epstein	CPPg++14.2.0	Success	71,018
Sep 17, 2026 02:24	Andrew Epstein	CPPg++14.2.0	Success	51,125
Sep 17, 2026 02:12	Andrew Epstein	CPPg++14.2.0	Success	145,915
Sep 17, 2026 02:09	Andrew Epstein	CPPg++14.2.0	Success	3,539
Sep 17, 2026 02:08	Andrew Epstein	CPPg++14.2.0	Error
Sep 17, 2026 02:07	Andrew Epstein	CPPg++14.2.0	Success	173,660
Sep 17, 2026 02:06	Andrew Epstein	CPPg++14.2.0	Success	95,193
Sep 17, 2026 02:03	Andrew Epstein	CPPg++14.2.0	Error
Sep 17, 2026 02:00	Victor Mercklé	CPPg++14.2.0	Success	32,449
Sep 17, 2026 01:56	Andrew Epstein	CPPg++14.2.0	Error
Sep 17, 2026 01:51	Andrew Epstein	CPPg++14.2.0	Success	69,081
Sep 17, 2026 01:49	Andrew Epstein	CPPg++14.2.0	Error
Sep 17, 2026 01:48	Andrew Epstein	CPPg++14.2.0	Success	6,947
Sep 17, 2026 01:41	Andrew Epstein	CPPg++14.2.0	Success	3,622
Sep 17, 2026 01:41	Andrew Epstein	CPPg++14.2.0	Success	6,895
Sep 17, 2026 01:39	Andrew Epstein	CPPg++14.2.0	Success	5,210
Sep 17, 2026 01:35	Andrew Epstein	CPPg++14.2.0	Success	6,889
Sep 17, 2026 01:33	Andrew Epstein	CPPg++14.2.0	Success	6,873
Sep 17, 2026 01:32	Andrew Epstein	CPPg++14.2.0	Success	52,212
Sep 17, 2026 01:29	Andrew Epstein	CPPg++14.2.0	Success	88,452
Sep 17, 2026 01:25	Andrew Epstein	CPPg++14.2.0	Success	84,303
Sep 17, 2026 01:21	Andrew Epstein	CPPg++14.2.0	Success	81,711
Sep 17, 2026 01:12	Andrew Epstein	CPPg++14.2.0	Success	3,621
Sep 17, 2026 01:12	Andrew Epstein	CPPg++14.2.0	Success	49,053
Sep 17, 2026 01:11	Andrew Epstein	CPPg++14.2.0	Success	5,080
Sep 17, 2026 01:07	Andrew Epstein	CPPg++14.2.0	Success	123,717
Sep 17, 2026 01:03	Andrew Epstein	CPPg++14.2.0	Success	228,378
Sep 17, 2026 01:00	Andrew Epstein	CPPg++14.2.0	Success	3,533
Sep 17, 2026 00:58	Andrew Epstein	CPPg++14.2.0	Success	3,499+62.32 RP
Sep 17, 2026 00:55	Andrew Epstein	CPPg++14.2.0	Success	151,891
Sep 17, 2026 00:52	Andrew Epstein	CPPg++14.2.0	Success	200,394
Sep 17, 2026 00:50	Andrew Epstein	CPPg++14.2.0	Success	5,566
Sep 17, 2026 00:43	Andrew Epstein	CPPg++14.2.0	Success	158,052
Sep 17, 2026 00:43	Andrew Epstein	CPPg++14.2.0	Success	3,577+53.66 RP
Sep 17, 2026 00:41	Andrew Epstein	CPPg++14.2.0	Success	5,248
Sep 17, 2026 00:35	Andrew Epstein	CPPg++14.2.0	Success	3,647
Sep 17, 2026 00:35	Andrew Epstein	CPPg++14.2.0	Success	152,243
Sep 17, 2026 00:34	Andrew Epstein	CPPg++14.2.0	Success	4,082
Sep 17, 2026 00:29	Andrew Epstein	CPPg++14.2.0	Success	5,593
Sep 17, 2026 00:27	Victor Mercklé	CPPg++14.2.0	Success	37,082
Sep 17, 2026 00:19	Andrew Epstein	CPPg++14.2.0	Success	3,921
Sep 17, 2026 00:19	Andrew Epstein	CPPg++14.2.0	Success	3,955
Sep 17, 2026 00:19	Andrew Epstein	CPPg++14.2.0	Success	3,938
Sep 17, 2026 00:17	Andrew Epstein	CPPg++14.2.0	Success	6,972
Sep 17, 2026 00:16	Andrew Epstein	CPPclang++20.1.2	Success	4,182
Sep 17, 2026 00:14	Andrew Epstein	CPPg++14.2.0	Success	8,042
Sep 17, 2026 00:09	Andrew Epstein	CPPg++14.2.0	Success	242,147
Sep 17, 2026 00:06	Victor Mercklé	CPPg++14.2.0	Success	36,816
Sep 17, 2026 00:05	Andrew Epstein	CPPg++14.2.0	Success	198,689
Sep 17, 2026 00:04	Andrew Epstein	CPPg++14.2.0	Success	3,647+131.70 RP
Sep 17, 2026 00:04	Andrew Epstein	CPPg++14.2.0	Success	5,285
Sep 17, 2026 00:00	Andrew Epstein	CPPg++14.2.0	Success	217,284
Sep 16, 2026 23:58	Andrew Epstein	CPPg++14.2.0	Success	220,729
Sep 16, 2026 23:54	Victor Mercklé	CPPg++14.2.0	Success	50,364
Sep 16, 2026 23:53	Andrew Epstein	CPPclang++20.1.2	Success	4,111
Sep 16, 2026 23:53	Andrew Epstein	CPPg++14.2.0	Success	4,256
Sep 16, 2026 23:52	Andrew Epstein	CPPg++14.2.0	Success	258,791
Sep 16, 2026 23:48	Andrew Epstein	CPPg++14.2.0	Success	4,352
Sep 16, 2026 23:39	Andrew Epstein	CPPg++14.2.0	Success	228,359
Sep 16, 2026 23:37	Victor Mercklé	CPPg++14.2.0	Success	39,235
Sep 16, 2026 23:33	Andrew Epstein	CPPg++14.2.0	Success	225,589+5.00 RP
Sep 16, 2026 23:23	Victor Mercklé	CPPg++14.2.0	Success	34,989
Sep 16, 2026 22:58	Victor Mercklé	CPPg++14.2.0	Success	38,569
Sep 16, 2026 22:46	Victor Mercklé	CPPg++14.2.0	Success	45,754
Sep 16, 2026 22:31	Victor Mercklé	CPPg++14.2.0	Success	47,324
Sep 16, 2026 22:17	Victor Mercklé	CPPg++14.2.0	Success	46,486
Sep 16, 2026 21:52	Victor Mercklé	CPPg++14.2.0	Success	48,555
Sep 16, 2026 21:31	Victor Mercklé	CPPg++14.2.0	Success	3,541
Sep 16, 2026 21:00	Victor Mercklé	CPPg++14.2.0	Success	38,720
Sep 16, 2026 20:13	Victor Mercklé	CPPg++14.2.0	Success	36,033
Sep 16, 2026 19:19	Victor Mercklé	CPPg++14.2.0	Success	28,483
Sep 16, 2026 19:04	Victor Mercklé	CPPg++14.2.0	Success	22,175
Sep 16, 2026 18:55	Victor Mercklé	CPPg++14.2.0	Success	22,173
Sep 16, 2026 18:48	Victor Mercklé	CPPg++14.2.0	Success	4,020
Sep 16, 2026 18:37	Victor Mercklé	CPPg++14.2.0	Success	23,049
Sep 16, 2026 18:28	Victor Mercklé	CPPg++14.2.0	Success	3,915
Sep 16, 2026 17:34	Victor Mercklé	CPPg++14.2.0	Success	45,703
Sep 16, 2026 16:33	Victor Mercklé	CPPg++14.2.0	Success	40,104
Sep 16, 2026 15:41	Victor Mercklé	CPPg++14.2.0	Success	3,712+5.00 RP
Sep 16, 2026 09:59	C21	CPPclang++20.1.2	Success	12,303+5.13 RP
Sep 16, 2026 06:37	Haha Expert	CPPg++13.3.0	Success	37,705+5.00 RP
Sep 15, 2026 19:47	C21	CPPclang++20.1.2	Success	12,305+437.16 RP
Sep 15, 2026 17:04	Coop	ZIG0.16.0	Error
Sep 15, 2026 06:34	Victor Mercklé	CPPg++14.2.0	Success	3,546
Sep 15, 2026 04:21	Victor Mercklé	CPPg++14.2.0	Success	6,919
Sep 15, 2026 00:04	Victor Mercklé	CPPg++14.2.0	Success	4,882
Sep 14, 2026 20:21	Victor Mercklé	CPPg++14.2.0	Success	4,070
Sep 14, 2026 15:38	Kevin Heavey	CPPg++10.5.0	Success	3,586

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