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
Aug 27, 2026 16:51	Victor Mercklé	CPPg++14.2.0	Success	14,469
Aug 27, 2026 16:50	Victor Mercklé	CPPg++14.2.0	Success	3,802
Aug 27, 2026 16:50	Victor Mercklé	CPPclang++20.1.2	Success	4,181
Aug 27, 2026 16:50	Victor Mercklé	CPPg++14.2.0	Success	3,995
Aug 27, 2026 16:50	Victor Mercklé	CPPg++14.2.0	Success	4,950
Aug 27, 2026 14:47	Victor Mercklé	CPPg++14.2.0	Success	5,799
Aug 27, 2026 14:20	Victor Mercklé	CPPg++14.2.0	Success	3,829
Aug 27, 2026 14:02	Victor Mercklé	CPPg++14.2.0	Success	23,992
Aug 27, 2026 13:56	Victor Mercklé	CPPg++14.2.0	Success	3,984
Aug 27, 2026 13:44	Victor Mercklé	CPPg++14.2.0	Success	7,661
Aug 27, 2026 13:34	Victor Mercklé	CPPg++14.2.0	Success	6,292
Aug 27, 2026 13:34	Victor Mercklé	CPPg++14.2.0	Success	3,711
Aug 27, 2026 13:21	Victor Mercklé	CPPg++14.2.0	Success	7,871
Aug 27, 2026 13:05	Victor Mercklé	CPPg++14.2.0	Success	3,872
Aug 27, 2026 12:58	Victor Mercklé	CPPg++14.2.0	Success	3,810
Aug 27, 2026 12:57	Victor Mercklé	CPPg++14.2.0	Success	3,771
Aug 27, 2026 12:43	Victor Mercklé	CPPg++14.2.0	Success	4,558
Aug 27, 2026 12:32	Victor Mercklé	CPPg++14.2.0	Success	3,857
Aug 27, 2026 12:25	Victor Mercklé	CPPg++14.2.0	Success	3,850
Aug 27, 2026 12:18	Victor Mercklé	CPPg++14.2.0	Success	3,799
Aug 27, 2026 12:11	Victor Mercklé	CPPg++14.2.0	Success	4,447
Aug 27, 2026 11:59	Victor Mercklé	CPPg++14.2.0	Success	3,760
Aug 27, 2026 11:49	Victor Mercklé	CPPg++14.2.0	Success	22,338
Aug 27, 2026 11:34	Victor Mercklé	CPPg++14.2.0	Success	3,803
Aug 27, 2026 11:18	Victor Mercklé	CPPg++14.2.0	Success	3,830
Aug 27, 2026 11:18	Victor Mercklé	CPPg++14.2.0	Success	3,701
Aug 27, 2026 11:16	Victor Mercklé	CPPg++14.2.0	Success	4,261
Aug 27, 2026 10:53	Victor Mercklé	CPPg++14.2.0	Success	3,944
Aug 27, 2026 10:41	Victor Mercklé	CPPg++14.2.0	Success	23,805
Aug 27, 2026 10:30	Victor Mercklé	CPPg++14.2.0	Success	3,931
Aug 27, 2026 10:28	Victor Mercklé	CPPg++14.2.0	Success	4,017
Aug 27, 2026 10:06	Victor Mercklé	CPPg++14.2.0	Success	3,753
Aug 27, 2026 10:03	Victor Mercklé	CPPg++14.2.0	Success	3,758
Aug 27, 2026 09:58	Victor Mercklé	CPPg++14.2.0	Success	16,284
Aug 27, 2026 09:56	Victor Mercklé	CPPg++14.2.0	Success	3,735
Aug 27, 2026 09:55	Victor Mercklé	CPPg++14.2.0	Success	5,118
Aug 27, 2026 09:25	Victor Mercklé	CPPg++14.2.0	Success	3,801
Aug 27, 2026 09:22	Victor Mercklé	CPPg++14.2.0	Success	3,869
Aug 27, 2026 09:12	Victor Mercklé	CPPg++14.2.0	Success	6,417
Aug 27, 2026 09:00	Victor Mercklé	CPPg++14.2.0	Success	20,179
Aug 27, 2026 08:52	Victor Mercklé	CPPg++14.2.0	Success	3,744
Aug 27, 2026 08:49	Victor Mercklé	CPPg++14.2.0	Success	6,237
Aug 27, 2026 08:31	Victor Mercklé	CPPg++14.2.0	Success	6,134
Aug 27, 2026 08:26	Victor Mercklé	CPPg++14.2.0	Success	5,660
Aug 27, 2026 08:12	Victor Mercklé	CPPclang++20.1.2	Success	4,024
Aug 27, 2026 08:11	Victor Mercklé	CPPg++14.2.0	Success	4,419
Aug 27, 2026 07:46	Victor Mercklé	CPPg++14.2.0	Success	3,713
Aug 27, 2026 07:46	Victor Mercklé	CPPg++14.2.0	Success	3,907
Aug 27, 2026 07:44	Victor Mercklé	CPPg++14.2.0	Success	4,506
Aug 27, 2026 07:40	Victor Mercklé	CPPg++14.2.0	Success	47,322
Aug 27, 2026 07:24	Victor Mercklé	CPPg++14.2.0	Success	75,500
Aug 27, 2026 07:14	Victor Mercklé	CPPg++14.2.0	Success	3,699+2.19 RP
Aug 27, 2026 07:11	Victor Mercklé	CPPg++14.2.0	Success	18,306
Aug 27, 2026 07:10	Victor Mercklé	CPPg++14.2.0	Success	4,908
Aug 27, 2026 06:54	Victor Mercklé	CPPg++14.2.0	Success	4,081
Aug 27, 2026 06:49	Victor Mercklé	CPPg++14.2.0	Success	4,130
Aug 27, 2026 06:44	Victor Mercklé	CPPg++14.2.0	Success	3,796
Aug 27, 2026 06:40	Victor Mercklé	CPPg++14.2.0	Success	4,100
Aug 27, 2026 06:39	Victor Mercklé	CPPg++14.2.0	Success	4,394
Aug 27, 2026 06:15	Victor Mercklé	CPPg++14.2.0	Success	4,501
Aug 27, 2026 06:08	Victor Mercklé	CPPg++14.2.0	Success	4,279
Aug 27, 2026 06:03	Victor Mercklé	CPPg++14.2.0	Success	4,275
Aug 27, 2026 05:57	Victor Mercklé	CPPg++14.2.0	Success	4,308
Aug 27, 2026 05:55	Victor Mercklé	CPPg++14.2.0	Success	4,058
Aug 27, 2026 05:53	Victor Mercklé	CPPg++14.2.0	Success	4,293
Aug 27, 2026 05:52	Victor Mercklé	CPPg++14.2.0	Success	4,086
Aug 27, 2026 05:52	Victor Mercklé	CPPg++14.2.0	Success	3,717
Aug 27, 2026 05:52	Victor Mercklé	CPPg++14.2.0	Success	4,302
Aug 27, 2026 05:49	Victor Mercklé	CPPg++14.2.0	Success	3,831
Aug 27, 2026 05:49	Victor Mercklé	CPPg++14.2.0	Success	4,105
Aug 27, 2026 05:46	Victor Mercklé	CPPg++14.2.0	Success	4,367
Aug 27, 2026 05:40	Victor Mercklé	CPPg++14.2.0	Success	4,349
Aug 27, 2026 05:38	Victor Mercklé	CPPg++14.2.0	Success	10,922
Aug 27, 2026 05:37	Victor Mercklé	CPPg++14.2.0	Success	58,035
Aug 27, 2026 05:37	Victor Mercklé	CPPg++14.2.0	Success	5,009
Aug 27, 2026 05:30	Victor Mercklé	CPPg++14.2.0	Success	3,702+0.73 RP
Aug 27, 2026 04:19	Victor Mercklé	CPPg++14.2.0	Success	5,636
Aug 27, 2026 04:04	Victor Mercklé	CPPg++14.2.0	Success	3,720
Aug 27, 2026 03:47	Victor Mercklé	CPPg++14.2.0	Success	3,703+13.06 RP
Aug 27, 2026 03:37	Victor Mercklé	CPPg++14.2.0	Success	4,120
Aug 27, 2026 03:32	Victor Mercklé	CPPg++14.2.0	Success	4,182
Aug 27, 2026 03:20	Victor Mercklé	CPPg++14.2.0	Success	4,187
Aug 27, 2026 03:12	Victor Mercklé	CPPg++14.2.0	Success	27,411
Aug 27, 2026 02:55	Victor Mercklé	CPPg++14.2.0	Success	4,226
Aug 27, 2026 02:54	Victor Mercklé	CPPg++14.2.0	Success	10,986
Aug 27, 2026 02:52	Victor Mercklé	CPPg++14.2.0	Success	4,149
Aug 27, 2026 02:50	Victor Mercklé	CPPg++14.2.0	Success	4,114
Aug 27, 2026 02:48	Victor Mercklé	CPPg++14.2.0	Success	4,137
Aug 27, 2026 02:45	Victor Mercklé	CPPg++14.2.0	Success	4,140
Aug 27, 2026 02:42	Victor Mercklé	CPPg++14.2.0	Success	3,989
Aug 27, 2026 02:28	Victor Mercklé	CPPg++14.2.0	Success	4,467
Aug 27, 2026 02:25	Victor Mercklé	CPPg++14.2.0	Success	4,177
Aug 27, 2026 02:19	Victor Mercklé	CPPg++14.2.0	Success	3,721+23.62 RP
Aug 27, 2026 02:17	Victor Mercklé	CPPg++14.2.0	Success	3,773
Aug 27, 2026 02:10	Victor Mercklé	CPPg++14.2.0	Success	4,901
Aug 27, 2026 02:09	Victor Mercklé	CPPg++14.2.0	Success	4,018
Aug 27, 2026 02:01	Victor Mercklé	CPPg++14.2.0	Success	3,851
Aug 27, 2026 02:01	Victor Mercklé	CPPg++14.2.0	Success	3,821
Aug 27, 2026 02:00	Victor Mercklé	CPPg++14.2.0	Success	8,056
Aug 27, 2026 01:59	Victor Mercklé	CPPg++14.2.0	Success	5,127

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