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	1:20.1.2-0ubuntu1~24.04.2	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
Dec 31, 2025 22:38	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 22:36	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 22:35	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 22:34	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 21:16	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 21:14	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 21:12	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 21:10	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 21:07	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 21:00	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 20:37	Павел Ратманов	CPPclang++18.1.3	Success	67,035+9.66 RP
Dec 31, 2025 20:36	Павел Ратманов	CPPg++13.3.0	Success	92,758
Dec 31, 2025 20:35	Павел Ратманов	CPPg++13.3.0	Success	92,325
Dec 31, 2025 20:34	Павел Ратманов	CPPg++13.3.0	Success	92,168
Dec 31, 2025 20:34	Павел Ратманов	CPPg++13.3.0	Error
Dec 31, 2025 20:18	Павел Ратманов	CPPg++13.3.0	Success	102,054
Dec 31, 2025 20:17	Павел Ратманов	CPPg++13.3.0	Error
Dec 31, 2025 20:16	Павел Ратманов	CPPg++13.3.0	Error
Dec 31, 2025 20:14	Павел Ратманов	CPPg++13.3.0	Error
Dec 31, 2025 20:12	Павел Ратманов	CPPg++13.3.0	Error
Dec 31, 2025 20:11	Павел Ратманов	CPPg++13.3.0	Error
Dec 31, 2025 20:00	Павел Ратманов	CPPg++13.3.0	Success	74,107
Dec 31, 2025 19:59	Павел Ратманов	CPPg++13.3.0	Error
Dec 31, 2025 19:58	Павел Ратманов	CPPg++13.3.0	Success	92,570
Dec 31, 2025 19:57	Павел Ратманов	CPPg++13.3.0	Success	73,745
Dec 31, 2025 19:56	Павел Ратманов	CPPg++13.3.0	Success	72,880
Dec 31, 2025 19:55	Павел Ратманов	CPPg++13.3.0	Success	71,679+2.03 RP
Dec 31, 2025 19:55	Павел Ратманов	CPPg++13.3.0	Success	72,739+4.49 RP
Dec 31, 2025 19:49	Павел Ратманов	CPPg++13.3.0	Success	75,194+0.02 RP
Dec 31, 2025 19:49	Павел Ратманов	CPPg++13.3.0	Success	75,206+10.84 RP
Dec 31, 2025 19:48	Павел Ратманов	CPPg++13.3.0	Success	81,878+17.59 RP
Dec 31, 2025 18:34	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 18:32	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 18:31	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 18:19	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 18:13	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 18:07	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 18:06	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 18:02	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 18:01	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 17:59	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 17:58	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 17:52	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 17:50	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 17:46	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 17:44	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 17:42	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 17:40	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 17:39	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 17:38	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 17:34	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 17:31	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 17:26	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 17:20	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 17:18	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 17:15	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 17:14	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 17:13	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 17:11	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 17:09	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 16:36	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 16:35	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 16:33	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 16:32	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 16:27	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 16:23	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 15:27	Павел Ратманов	CPPg++13.3.0	Success	97,043
Dec 31, 2025 15:24	Павел Ратманов	CPPg++13.3.0	Success	96,983
Dec 31, 2025 15:23	Павел Ратманов	CPPg++13.3.0	Error
Dec 31, 2025 15:22	Павел Ратманов	CPPg++13.3.0	Error
Dec 31, 2025 15:20	Павел Ратманов	CPPg++13.3.0	Error
Dec 31, 2025 13:17	Aniruddha Deb	CPPclang++18.1.3	Success	8,966+21.59 RP
Dec 31, 2025 13:15	Aniruddha Deb	CPPclang++18.1.3	Error
Dec 31, 2025 13:12	Aniruddha Deb	CPPclang++18.1.3	Error
Dec 31, 2025 11:50	Aniruddha Deb	CPPg++13.3.0	Error
Dec 31, 2025 11:50	Aniruddha Deb	CPPg++13.3.0	Success	9,204
Dec 31, 2025 11:47	Aniruddha Deb	CPPg++13.3.0	Error
Dec 31, 2025 11:21	Aniruddha Deb	CPPg++13.3.0	Success	9,143+42.43 RP
Dec 31, 2025 11:17	Aniruddha Deb	CPPg++13.3.0	Success	9,626
Dec 31, 2025 11:17	Aniruddha Deb	CPPg++13.3.0	Success	10,029
Dec 31, 2025 08:23	Aman \| अमन	CPPg++13.3.0	Error
Dec 31, 2025 08:23	Aman \| अमन	CPPg++13.3.0	Error
Dec 31, 2025 08:23	Aman \| अमन	CPPg++13.3.0	Error
Dec 31, 2025 08:04	Aman \| अमन	CPPg++13.3.0	Success	316,958
Dec 31, 2025 08:04	Aman \| अमन	CPPg++13.3.0	Success	316,978
Dec 31, 2025 08:04	Aman \| अमन	CPPg++13.3.0	Success	317,365
Dec 31, 2025 08:02	Aman \| अमन	CPPg++13.3.0	Success	322,406
Dec 31, 2025 08:02	Aman \| अमन	CPPg++13.3.0	Success	322,893
Dec 31, 2025 08:02	Aman \| अमन	CPPg++13.3.0	Success	321,452
Dec 31, 2025 07:57	Aman \| अमन	CPPg++13.3.0	Success	322,217
Dec 31, 2025 07:57	Aman \| अमन	CPPg++13.3.0	Success	321,846
Dec 31, 2025 07:56	Aman \| अमन	CPPg++13.3.0	Success	322,410
Dec 31, 2025 07:51	Rajarshi Basu	CPPg++13.3.0	Error
Dec 31, 2025 07:26	Rajarshi Basu	CPPg++13.3.0	Success	3,420+372.96 RP
Dec 31, 2025 07:15	Rajarshi Basu	CPPg++13.3.0	Error
Dec 31, 2025 06:52	Rajarshi Basu	CPPg++13.3.0	Success	3,920+487.89 RP
Dec 31, 2025 06:47	Rajarshi Basu	CPPg++13.3.0	Error
Dec 31, 2025 06:44	Rajarshi Basu	CPPg++13.3.0	Error
Dec 31, 2025 06:39	Rajarshi Basu	CPPg++13.3.0	Error
Dec 31, 2025 04:40	Rajarshi Basu	CPPg++13.3.0	Success	4,902

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