Fizz Buzz

Perform FizzBuzz on a stream of binary integers as fast as possible.

Input: 30 000 000 uint32 values in little-endian binary on STDIN (4 bytes each).

Output: For each number n, print one line:

FizzBuzz if n is divisible by both 3 and 5
Fizz if n is divisible by 3
Buzz if n is divisible by 5
n as a decimal string otherwise

Restrictions:30s256Mb 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
Feb 5, 2026 05:13	Josu San Martin	RUSTrust-1.92.0	Success	4,073+179.36 RP
Feb 5, 2026 05:11	Josu San Martin	CPPclang++18.1.3	Success	4,110
Feb 5, 2026 05:10	Josu San Martin	CPPclang++18.1.3	Success	4,062+18.65 RP
Feb 5, 2026 05:05	Josu San Martin	CPPg++13.3.0	Success	4,124
Feb 5, 2026 05:05	Josu San Martin	CPPclang++18.1.3	Success	4,093+263.60 RP
Feb 5, 2026 04:41	Josu San Martin	CPPclang++18.1.3	Error
Feb 5, 2026 04:41	Josu San Martin	CPPg++13.3.0	Error
Jan 21, 2026 12:41	Sergey Serebryakov	CPPg++13.3.0	Success	5,440
Jan 21, 2026 11:12	Sergey Serebryakov	CPPg++13.3.0	Success	4,802+2'082.47 RP
Jan 12, 2026 08:39	Alexander Frolov	ZIG0.14.0	Error
Jan 11, 2026 22:48	Alexander Frolov	ZIG0.14.0	Error
Jan 11, 2026 22:42	Alexander Frolov	ZIG0.14.0	Success	5,021
Jan 11, 2026 22:17	Alexander Frolov	ZIG0.14.0	Success	5,303
Jan 11, 2026 22:16	Alexander Frolov	ZIG0.14.0	Error
Jan 11, 2026 22:13	Alexander Frolov	ZIG0.14.0	Error
Jan 11, 2026 22:10	Alexander Frolov	ZIG0.14.0	Error
Jan 11, 2026 22:05	Alexander Frolov	ZIG0.14.0	Error
Jan 11, 2026 22:01	Alexander Frolov	ZIG0.14.0	Error
Jan 11, 2026 21:45	Alexander Frolov	ZIG0.14.0	Error
Jan 11, 2026 21:44	Alexander Frolov	ZIG0.14.0	Error
Jan 10, 2026 17:35	Aniruddha Deb	CPPg++13.3.0	Error
Jan 7, 2026 04:58	Josu San Martin	GOgo1.25.5	Success	4,659
Jan 5, 2026 09:19	Hattonuri	CPPclang++18.1.3	Success	3,975
Jan 5, 2026 09:18	Hattonuri	CPPclang++18.1.3	Success	3,955
Jan 5, 2026 09:17	Hattonuri	CPPclang++18.1.3	Success	3,994
Jan 5, 2026 08:44	Hattonuri	CPPclang++18.1.3	Success	4,072
Jan 5, 2026 08:41	Hattonuri	CPPclang++18.1.3	Success	4,075
Jan 5, 2026 08:40	Hattonuri	CPPg++13.3.0	Success	6,161
Jan 5, 2026 08:39	Hattonuri	CPPclang++18.1.3	Success	4,164
Jan 5, 2026 08:35	Hattonuri	CPPclang++18.1.3	Success	4,612
Jan 5, 2026 07:26	Hattonuri	CPPclang++18.1.3	Success	4,862
Jan 5, 2026 05:56	Josu San Martin	CPPg++13.3.0	Success	4,588+298.13 RP
Jan 5, 2026 05:42	Josu San Martin	CPPg++13.3.0	Success	6,867
Jan 5, 2026 05:33	Josu San Martin	CPPg++13.3.0	Success	5,475
Jan 5, 2026 05:17	Josu San Martin	CPPg++13.3.0	Success	5,315+70.86 RP
Jan 5, 2026 04:39	Hattonuri	CPPclang++18.1.3	Success	6,771
Jan 5, 2026 04:12	Josu San Martin	CPPg++13.3.0	Success	5,523+138.37 RP
Jan 5, 2026 04:10	Hattonuri	CPPclang++18.1.3	Success	3,933
Jan 5, 2026 04:09	Hattonuri	CPPclang++18.1.3	Error
Jan 5, 2026 03:57	Hattonuri	CPPclang++18.1.3	Success	3,939
Jan 5, 2026 03:57	Hattonuri	CPPclang++18.1.3	Success	3,933
Jan 5, 2026 03:55	Hattonuri	CPPclang++18.1.3	Success	3,964
Jan 5, 2026 03:54	Hattonuri	CPPclang++18.1.3	Success	4,405
Jan 5, 2026 03:53	Hattonuri	CPPclang++18.1.3	Error
Jan 5, 2026 03:52	Hattonuri	CPPclang++18.1.3	Error
Jan 5, 2026 03:50	Hattonuri	CPPclang++18.1.3	Success	3,943
Jan 5, 2026 03:50	Hattonuri	CPPclang++18.1.3	Success	3,932+0.65 RP
Jan 5, 2026 03:49	Hattonuri	CPPclang++18.1.3	Success	3,933
Jan 5, 2026 03:43	Hattonuri	CPPclang++18.1.3	Success	4,003
Jan 5, 2026 03:42	Hattonuri	CPPclang++18.1.3	Success	3,940
Jan 5, 2026 03:41	Hattonuri	CPPclang++18.1.3	Error
Jan 5, 2026 03:34	Hattonuri	CPPclang++18.1.3	Success	3,944
Jan 5, 2026 03:32	Hattonuri	CPPclang++18.1.3	Success	3,983
Jan 5, 2026 03:26	Hattonuri	CPPclang++18.1.3	Error
Jan 5, 2026 03:25	Hattonuri	CPPclang++18.1.3	Error
Jan 5, 2026 03:23	Hattonuri	CPPclang++18.1.3	Error
Jan 5, 2026 03:21	Hattonuri	CPPclang++18.1.3	Error
Jan 5, 2026 03:06	Hattonuri	CPPclang++18.1.3	Success	3,944
Jan 5, 2026 03:05	Hattonuri	CPPclang++18.1.3	Success	3,939
Jan 5, 2026 02:57	Josu San Martin	CPPg++13.3.0	Success	6,392
Jan 5, 2026 02:50	Josu San Martin	CPPg++13.3.0	Error
Jan 1, 2026 21:42	Hattonuri	CPPg++13.3.0	Success	5,881
Jan 1, 2026 21:35	Hattonuri	CPPg++13.3.0	Success	4,332
Jan 1, 2026 21:35	Hattonuri	CPPclang++18.1.3	Success	4,618
Jan 1, 2026 21:14	Hattonuri	CPPclang++18.1.3	Success	3,944
Jan 1, 2026 21:13	Hattonuri	CPPclang++18.1.3	Success	3,939
Jan 1, 2026 21:12	Hattonuri	CPPclang++18.1.3	Success	4,053
Jan 1, 2026 21:11	Hattonuri	CPPclang++18.1.3	Error
Jan 1, 2026 21:10	Hattonuri	CPPclang++18.1.3	Error
Jan 1, 2026 21:07	Hattonuri	CPPclang++18.1.3	Success	3,933+7.09 RP
Jan 1, 2026 21:03	Hattonuri	CPPclang++18.1.3	Error
Jan 1, 2026 20:59	Hattonuri	CPPclang++18.1.3	Error
Jan 1, 2026 20:47	Hattonuri	CPPclang++18.1.3	Success	4,678
Jan 1, 2026 20:45	Hattonuri	CPPclang++18.1.3	Success	4,601
Jan 1, 2026 20:43	Hattonuri	CPPclang++18.1.3	Error
Jan 1, 2026 20:32	Hattonuri	CPPclang++18.1.3	Success	4,596
Jan 1, 2026 20:30	Hattonuri	CPPclang++18.1.3	Error
Jan 1, 2026 20:12	Hattonuri	CPPclang++18.1.3	Success	4,628
Jan 1, 2026 20:02	Hattonuri	CPPclang++18.1.3	Success	4,589
Jan 1, 2026 19:47	Hattonuri	CPPclang++18.1.3	Success	4,639
Jan 1, 2026 19:30	Hattonuri	CPPclang++18.1.3	Success	4,754
Jan 1, 2026 18:03	Hattonuri	CPPclang++18.1.3	Success	3,955
Jan 1, 2026 17:28	Hattonuri	CPPclang++18.1.3	Error
Jan 1, 2026 17:27	Hattonuri	CPPclang++18.1.3	Error
Jan 1, 2026 17:03	Hattonuri	CPPclang++18.1.3	Success	4,198
Jan 1, 2026 16:42	Hattonuri	CPPclang++18.1.3	Success	3,944+3.21 RP
Jan 1, 2026 16:37	Hattonuri	CPPclang++18.1.3	Success	3,949+88.49 RP
Jan 1, 2026 02:40	Hattonuri	CPPclang++18.1.3	Success	4,273
Jan 1, 2026 02:36	Hattonuri	CPPclang++18.1.3	Success	4,275
Jan 1, 2026 02:06	Hattonuri	CPPclang++18.1.3	Success	4,255
Jan 1, 2026 02:05	Hattonuri	CPPclang++18.1.3	Success	4,391
Jan 1, 2026 01:38	Hattonuri	CPPclang++18.1.3	Success	4,219
Jan 1, 2026 01:22	Hattonuri	CPPclang++18.1.3	Error
Jan 1, 2026 01:00	Josu San Martin	RUSTrust-1.92.0	Success	5,980+349.66 RP
Jan 1, 2026 00:51	Hattonuri	CPPclang++18.1.3	Success	5,628
Jan 1, 2026 00:06	Hattonuri	CPPclang++18.1.3	Success	4,092+4.77 RP
Jan 1, 2026 00:03	Hattonuri	CPPclang++18.1.3	Success	4,100+3.56 RP
Dec 31, 2025 23:54	Hattonuri	CPPclang++18.1.3	Success	4,115
Dec 31, 2025 23:52	Hattonuri	CPPclang++18.1.3	Error
Dec 31, 2025 23:42	Hattonuri	CPPclang++18.1.3	Success	4,106+4.74 RP

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