Unique strings

Count the exact number of unique tokens as fast as possible.

Input

One token per line on STDIN:

JWXcKKaWzvFL5
Rof
3ztCpA
5wHcGN
*UiEMthaTS*g

Output

Print the exact count of unique tokens to STDOUT.

Constraints

Character set: 0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ@#%*
Maximum token length: 16
Approximately 1,000,000 unique tokens

Restrictions:20s512Mb 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
Apr 11, 2026 21:41	Aditya	CPPg++13.3.0	Error
Apr 11, 2026 21:39	Aditya	CPPg++13.3.0	Error
Apr 11, 2026 21:13	Aditya	CPPg++13.3.0	Error
Apr 11, 2026 21:13	Aditya	CPPg++13.3.0	Error
Apr 11, 2026 21:08	Aditya	CPPg++13.3.0	Error
Apr 11, 2026 20:56	Aditya	CPPg++13.3.0	Error
Apr 11, 2026 20:55	Aditya	CPPg++13.3.0	Error
Apr 11, 2026 20:36	Aditya	CPPg++13.3.0	Error
Apr 11, 2026 20:20	Aditya	CPPg++13.3.0	Error
Apr 11, 2026 19:41	Aditya	CPPg++13.3.0	Error
Apr 11, 2026 19:39	Aditya	CPPg++13.3.0	Error
Apr 10, 2026 19:35	Oleg Skinderev	CPPclang++18.1.3	Success	232,172
Apr 10, 2026 19:34	Oleg Skinderev	CPPg++13.3.0	Success	219,894+0.93 RP
Apr 10, 2026 19:31	Oleg Skinderev	CPPg++13.3.0	Success	224,461+3.68 RP
Apr 10, 2026 19:24	Oleg Skinderev	CPPg++13.3.0	Error
Apr 10, 2026 19:03	Oleg Skinderev	CPPg++13.3.0	Success	244,666+0.18 RP
Apr 10, 2026 19:03	Oleg Skinderev	CPPclang++18.1.3	Success	245,731+0.44 RP
Apr 10, 2026 18:54	Oleg Skinderev	CPPclang++18.1.3	Success	267,351
Apr 10, 2026 18:54	Oleg Skinderev	CPPclang++18.1.3	Success	251,350
Apr 10, 2026 18:54	Oleg Skinderev	CPPg++13.3.0	Success	248,417+2.51 RP
Apr 10, 2026 18:50	Oleg Skinderev	CPPg++13.3.0	Success	264,927+17.46 RP
Apr 10, 2026 18:40	Oleg Skinderev	CPPg++13.3.0	Error
Apr 10, 2026 18:24	Oleg Skinderev	CPPg++13.3.0	Error
Apr 10, 2026 18:19	Oleg Skinderev	CPPg++13.3.0	Error
Apr 10, 2026 18:14	Oleg Skinderev	CPPg++13.3.0	Error
Apr 10, 2026 18:08	Oleg Skinderev	CPPg++13.3.0	Error
Apr 10, 2026 18:08	Oleg Skinderev	CPPg++13.3.0	Error
Apr 10, 2026 17:56	Oleg Skinderev	CPPg++13.3.0	Error
Apr 10, 2026 16:46	Oleg Skinderev	CPPg++13.3.0	Success	492,919+20.29 RP
Apr 10, 2026 05:47	limanjun99	CPPg++13.3.0	Error
Apr 10, 2026 05:31	limanjun99	CPPg++13.3.0	Success	13,742
Apr 10, 2026 05:27	limanjun99	CPPg++13.3.0	Error
Apr 10, 2026 05:20	limanjun99	CPPg++13.3.0	Error
Apr 6, 2026 19:34	Pavel Skripkin	RUSTrust-1.92.0	Success	20,854
Apr 6, 2026 19:06	Pavel Skripkin	RUSTrust-1.92.0	Success	17,807+10.07 RP
Apr 6, 2026 18:49	Pavel Skripkin	RUSTrust-1.92.0	Success	18,132+69.30 RP
Apr 4, 2026 22:16	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 4, 2026 22:14	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 4, 2026 22:09	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 4, 2026 22:08	Danylo Mocherniuk	CPPg++13.3.0	Error
Apr 3, 2026 16:57	Ondřej Polanecký	CPPg++13.3.0	Success	22,307+49.88 RP
Apr 3, 2026 16:45	Ondřej Polanecký	CPPg++13.3.0	Success	25,100+398.41 RP
Apr 3, 2026 01:13	Ondřej Polanecký	CPPg++13.3.0	Error
Apr 2, 2026 09:56	olliecrow	CSHARP9.0.14	Success	13,250
Apr 1, 2026 23:45	olliecrow	GOgo1.26.1	Success	11,064
Apr 1, 2026 23:43	olliecrow	GOgo1.26.1	Success	11,145
Apr 1, 2026 23:41	olliecrow	GOgo1.26.1	Success	11,004
Apr 1, 2026 23:38	olliecrow	GOgo1.26.1	Success	11,004
Apr 1, 2026 23:36	olliecrow	GOgo1.26.1	Success	11,029
Apr 1, 2026 23:33	olliecrow	GOgo1.26.1	Success	10,984
Apr 1, 2026 23:29	olliecrow	GOgo1.26.1	Success	11,028
Apr 1, 2026 23:27	olliecrow	GOgo1.26.1	Success	11,040
Apr 1, 2026 23:25	olliecrow	GOgo1.26.1	Success	11,049
Apr 1, 2026 23:24	olliecrow	GOgo1.26.1	Success	11,036
Apr 1, 2026 23:22	olliecrow	GOgo1.26.1	Success	11,022
Apr 1, 2026 23:21	olliecrow	GOgo1.26.1	Success	11,031
Apr 1, 2026 23:19	olliecrow	GOgo1.26.1	Success	11,035
Apr 1, 2026 23:18	olliecrow	GOgo1.26.1	Success	11,026
Apr 1, 2026 23:16	olliecrow	GOgo1.26.1	Success	11,066
Apr 1, 2026 23:15	olliecrow	GOgo1.26.1	Success	11,104
Apr 1, 2026 23:13	olliecrow	GOgo1.26.1	Success	11,049
Apr 1, 2026 23:11	olliecrow	GOgo1.26.1	Success	11,078
Apr 1, 2026 23:09	olliecrow	GOgo1.26.1	Success	11,049
Apr 1, 2026 23:07	olliecrow	GOgo1.26.1	Success	11,090
Apr 1, 2026 23:05	olliecrow	GOgo1.26.1	Success	11,037
Apr 1, 2026 23:04	olliecrow	GOgo1.26.1	Success	11,004
Apr 1, 2026 23:02	olliecrow	GOgo1.26.1	Success	11,096
Apr 1, 2026 23:00	olliecrow	GOgo1.26.1	Success	10,967
Apr 1, 2026 22:59	olliecrow	GOgo1.26.1	Success	11,026
Apr 1, 2026 22:57	olliecrow	GOgo1.26.1	Success	11,056
Apr 1, 2026 22:55	olliecrow	GOgo1.26.1	Success	11,020
Apr 1, 2026 22:54	olliecrow	GOgo1.26.1	Success	11,022
Apr 1, 2026 22:52	olliecrow	GOgo1.26.1	Success	11,062
Apr 1, 2026 22:51	olliecrow	GOgo1.26.1	Success	11,024
Apr 1, 2026 22:49	olliecrow	GOgo1.26.1	Success	11,032
Apr 1, 2026 22:47	olliecrow	GOgo1.26.1	Success	11,042
Apr 1, 2026 22:46	olliecrow	GOgo1.26.1	Success	10,996
Apr 1, 2026 22:45	olliecrow	GOgo1.26.1	Success	11,060
Apr 1, 2026 22:43	olliecrow	GOgo1.26.1	Success	11,049
Apr 1, 2026 22:42	olliecrow	GOgo1.26.1	Success	11,042
Apr 1, 2026 22:40	olliecrow	GOgo1.26.1	Success	11,095
Apr 1, 2026 22:38	olliecrow	GOgo1.26.1	Success	11,081
Apr 1, 2026 22:36	olliecrow	GOgo1.26.1	Success	11,054
Apr 1, 2026 22:34	olliecrow	GOgo1.26.1	Success	11,061
Apr 1, 2026 22:33	olliecrow	GOgo1.26.1	Success	11,086
Apr 1, 2026 22:30	olliecrow	GOgo1.26.1	Success	11,058
Apr 1, 2026 22:25	olliecrow	GOgo1.26.1	Success	11,080
Apr 1, 2026 22:23	olliecrow	GOgo1.26.1	Success	11,058
Apr 1, 2026 22:20	olliecrow	GOgo1.26.1	Success	11,099
Apr 1, 2026 22:17	olliecrow	GOgo1.26.1	Success	11,075
Apr 1, 2026 22:15	olliecrow	GOgo1.26.1	Success	11,171
Apr 1, 2026 22:13	olliecrow	GOgo1.26.1	Success	11,099
Apr 1, 2026 22:09	olliecrow	GOgo1.26.1	Success	11,059
Apr 1, 2026 22:07	olliecrow	GOgo1.26.1	Success	11,099
Apr 1, 2026 22:05	olliecrow	GOgo1.26.1	Success	11,278
Apr 1, 2026 22:04	olliecrow	GOgo1.26.1	Success	11,001
Apr 1, 2026 22:01	olliecrow	GOgo1.26.1	Success	11,049
Apr 1, 2026 21:59	olliecrow	GOgo1.26.1	Success	11,038
Apr 1, 2026 21:54	olliecrow	GOgo1.26.1	Success	11,008
Apr 1, 2026 21:52	olliecrow	GOgo1.26.1	Success	10,976

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