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
Apr 29, 2026 17:06	Mehdi-Dehghan-Fooladi	CPPg++14.2.0	Error
Apr 29, 2026 16:59	Mehdi-Dehghan-Fooladi	CPPg++14.2.0	Error
Apr 29, 2026 16:02	Victor Mercklé	CPPg++14.2.0	Success	2,785+256.12 RP
Apr 29, 2026 15:27	Victor Mercklé	CPPg++14.2.0	Success	2,975
Apr 29, 2026 15:20	Victor Mercklé	CPPg++14.2.0	Success	2,888+192.30 RP
Apr 29, 2026 13:55	TudyM	CPPg++14.2.0	Success	7,631
Apr 29, 2026 13:50	TudyM	CPPg++14.2.0	Success	7,483+25.57 RP
Apr 29, 2026 13:46	TudyM	CPPg++14.2.0	Success	7,763
Apr 29, 2026 13:42	TudyM	CPPg++14.2.0	Success	7,630
Apr 29, 2026 13:37	TudyM	CPPg++14.2.0	Success	7,777
Apr 29, 2026 13:33	TudyM	CPPg++14.2.0	Success	7,754+5.00 RP
Apr 29, 2026 11:26	Charles Cabergs	CPPg++13.3.0	Success	3,272
Apr 29, 2026 10:59	Victor Mercklé	CPPg++14.2.0	Error
Apr 29, 2026 10:57	Victor Mercklé	CPPg++14.2.0	Error
Apr 29, 2026 10:16	Victor Mercklé	CPPg++14.2.0	Success	3,428
Apr 29, 2026 08:55	olliecrow	CSHARP9.0.15	Success	4,123
Apr 29, 2026 08:19	Victor Mercklé	CPPg++14.2.0	Error
Apr 29, 2026 07:39	Victor Mercklé	CPPg++14.2.0	Error
Apr 29, 2026 06:14	Charles Cabergs	CPPg++13.3.0	Success	3,451
Apr 29, 2026 03:46	Charles Cabergs	CPPg++14.2.0	Success	3,294+5.00 RP
Apr 29, 2026 01:40	Victor Mercklé	CPPg++14.2.0	Success	3,062
Apr 29, 2026 01:35	olliecrow	ZIG0.15.1	Success	3,484+5.00 RP
Apr 29, 2026 01:33	Victor Mercklé	CPPg++14.2.0	Success	2,991
Apr 29, 2026 01:26	Victor Mercklé	CPPg++14.2.0	Success	3,013
Apr 29, 2026 01:19	Victor Mercklé	CPPg++14.2.0	Success	3,011
Apr 29, 2026 01:12	Victor Mercklé	CPPg++14.2.0	Success	3,007
Apr 29, 2026 01:05	Victor Mercklé	CPPg++14.2.0	Success	3,087
Apr 29, 2026 00:58	Victor Mercklé	CPPg++14.2.0	Success	2,982
Apr 29, 2026 00:51	Victor Mercklé	CPPg++14.2.0	Success	2,978+54.36 RP
Apr 29, 2026 00:44	Victor Mercklé	CPPg++14.2.0	Error
Apr 29, 2026 00:37	Victor Mercklé	CPPg++14.2.0	Success	3,483
Apr 29, 2026 00:30	Victor Mercklé	CPPg++14.2.0	Success	3,027+38.83 RP
Apr 29, 2026 00:23	Victor Mercklé	CPPg++14.2.0	Success	3,127
Apr 29, 2026 00:16	Victor Mercklé	CPPg++14.2.0	Success	3,063+147.57 RP
Apr 29, 2026 00:09	Victor Mercklé	CPPg++14.2.0	Success	3,248
Apr 29, 2026 00:02	Victor Mercklé	CPPg++14.2.0	Success	3,208+225.34 RP
Apr 28, 2026 23:55	Victor Mercklé	CPPg++14.2.0	Success	3,628
Apr 28, 2026 23:48	Victor Mercklé	CPPg++14.2.0	Success	3,713
Apr 28, 2026 23:41	Victor Mercklé	CPPg++14.2.0	Success	3,505
Apr 28, 2026 23:34	Victor Mercklé	CPPg++14.2.0	Success	3,857
Apr 28, 2026 23:23	Victor Mercklé	CPPg++14.2.0	Success	3,619
Apr 28, 2026 23:14	Victor Mercklé	CPPg++14.2.0	Success	3,599
Apr 28, 2026 23:07	Victor Mercklé	CPPg++14.2.0	Success	3,898
Apr 28, 2026 23:00	Victor Mercklé	CPPg++14.2.0	Success	3,881
Apr 28, 2026 22:48	Victor Mercklé	CPPg++14.2.0	Success	3,494
Apr 28, 2026 22:41	Victor Mercklé	CPPg++14.2.0	Success	3,452+167.61 RP
Apr 28, 2026 20:40	Victor Mercklé	CPPg++14.2.0	Success	3,664+18.50 RP
Apr 28, 2026 20:33	Victor Mercklé	CPPg++14.2.0	Success	3,858
Apr 28, 2026 20:26	Victor Mercklé	CPPg++14.2.0	Success	3,689+37.68 RP
Apr 28, 2026 20:02	Victor Mercklé	CPPg++14.2.0	Success	3,845
Apr 28, 2026 18:56	olliecrow	ZIG0.15.1	Success	31,290
Apr 28, 2026 18:33	olliecrow	CSHARP9.0.15	Error
Apr 28, 2026 17:38	Charles Cabergs	CPPg++13.3.0	Success	3,254
Apr 28, 2026 16:48	Victor Mercklé	CPPg++14.2.0	Success	4,722
Apr 28, 2026 14:34	Victor Mercklé	CPPg++14.2.0	Success	4,712
Apr 28, 2026 14:09	Victor Mercklé	CPPg++14.2.0	Success	3,741+46.34 RP
Apr 28, 2026 14:02	Victor Mercklé	CPPg++14.2.0	Success	4,700
Apr 28, 2026 13:55	Victor Mercklé	CPPg++14.2.0	Success	3,866
Apr 28, 2026 11:53	Victor Mercklé	CPPg++14.2.0	Success	27,288
Apr 28, 2026 10:18	TudyM	CPPg++13.3.0	Success	7,645
Apr 28, 2026 10:12	TudyM	CPPg++14.2.0	Success	7,629+8.03 RP
Apr 28, 2026 09:51	TudyM	CPPg++14.2.0	Success	7,676+6.59 RP
Apr 28, 2026 09:37	Victor Mercklé	CPPg++14.2.0	Error
Apr 28, 2026 09:30	Victor Mercklé	CPPg++14.2.0	Error
Apr 28, 2026 09:24	TudyM	CPPg++14.2.0	Success	7,715+38.95 RP
Apr 28, 2026 09:23	Victor Mercklé	CPPg++14.2.0	Error
Apr 28, 2026 09:20	TudyM	CPPg++14.2.0	Success	12,367
Apr 28, 2026 09:08	TudyM	RUSTrust-1.95.0	Success	14,193
Apr 28, 2026 08:19	Victor Mercklé	CPPg++14.2.0	Error
Apr 28, 2026 07:14	Victor Mercklé	CPPg++14.2.0	Success	3,807+126.74 RP
Apr 28, 2026 06:13	Victor Mercklé	CPPg++14.2.0	Success	4,000+588.69 RP
Apr 28, 2026 01:55	Charles Cabergs	CPPg++13.3.0	Success	3,252+128.65 RP
Apr 27, 2026 22:30	Victor Mercklé	CPPg++14.2.0	Success	5,232+1'347.90 RP
Apr 27, 2026 22:20	Victor Mercklé	CPPg++14.2.0	Success	17,749+563.41 RP
Apr 27, 2026 22:12	Victor Mercklé	CPPg++14.2.0	Error
Apr 27, 2026 17:47	Charles Cabergs	CPPg++13.3.0	Success	3,394+162.41 RP
Apr 27, 2026 15:41	Charles Cabergs	CPPg++13.3.0	Success	3,689
Apr 27, 2026 10:10	Charles Cabergs	CPPclang++18.1.3	Success	3,592+71.73 RP
Apr 27, 2026 08:15	Charles Cabergs	CPPg++13.3.0	Success	3,687+81.35 RP
Apr 27, 2026 05:33	Charles Cabergs	CPPg++13.3.0	Success	3,816
Apr 27, 2026 02:51	Charles Cabergs	CPPg++13.3.0	Success	3,801+77.91 RP
Apr 26, 2026 20:17	TudyM	CPPg++14.2.0	Success	7,954+71.27 RP
Apr 26, 2026 20:15	TudyM	CPPclang++20.1.2	Success	9,936
Apr 26, 2026 19:23	Charles Cabergs	CPPg++13.3.0	Success	3,917+91.13 RP
Apr 26, 2026 17:11	TudyM	CPPg++10.5.0	Success	8,432+1'185.96 RP
Apr 26, 2026 15:52	Charles Cabergs	CPPg++13.3.0	Success	4,062+21.63 RP
Apr 26, 2026 07:52	Charles Cabergs	CPPg++13.3.0	Success	4,098+115.71 RP
Apr 26, 2026 04:54	Charles Cabergs	CPPg++13.3.0	Success	4,302+20.88 RP
Apr 26, 2026 02:55	olliecrow	CPPclang++18.1.3	Success	3,013
Apr 26, 2026 02:05	Charles Cabergs	CPPclang++18.1.3	Success	4,353
Apr 25, 2026 22:46	olliecrow	CSHARP9.0.15	Success	4,131
Apr 25, 2026 22:25	olliecrow	GOgo1.26.2	Success	3,509
Apr 25, 2026 21:48	olliecrow	RUSTrust-1.95.0	Success	2,946
Apr 25, 2026 14:43	olliecrow	CSHARP9.0.15	Success	4,183
Apr 25, 2026 14:36	olliecrow	CSHARP9.0.15	Success	4,298
Apr 25, 2026 14:19	olliecrow	GOgo1.26.2	Success	3,780
Apr 25, 2026 13:52	olliecrow	RUSTrust-1.95.0	Success	2,883+2.40 RP
Apr 25, 2026 12:01	olliecrow	RUSTrust-1.95.0	Success	2,892
Apr 25, 2026 11:33	olliecrow	CPPclang++18.1.3	Success	3,045
Apr 25, 2026 04:23	olliecrow	CSHARP9.0.15	Success	4,200

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