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
May 1, 2021 12:39	alex3d	CPP	Error
May 1, 2021 12:38	alex3d	CPP	Error
May 1, 2021 12:37	alex3d	CPP	Error
May 1, 2021 12:35	alex3d	CPP	Error
May 1, 2021 12:35	alex3d	CPP	Error
May 1, 2021 12:24	alex3d	CPP	Error
May 1, 2021 12:22	alex3d	CPP	Error
May 1, 2021 12:21	alex3d	CPP	Error
May 1, 2021 12:18	alex3d	CPP	Error
May 1, 2021 12:16	alex3d	CPP	Error
May 1, 2021 12:09	alex3d	CPP	Error
May 1, 2021 12:08	alex3d	CPP	Error
May 1, 2021 12:05	alex3d	CPP	Error
May 1, 2021 10:59	glebarez	GO	Error
May 1, 2021 10:48	Feofan	CPP	Error
May 1, 2021 10:45	Feofan	CPP	Error
May 1, 2021 10:42	Feofan	CPP	Error
May 1, 2021 10:39	Feofan	CPP	Error
May 1, 2021 10:37	Feofan	CPP	Error
May 1, 2021 10:24	Feofan	CPP	Error
Apr 30, 2021 20:32	recar	CPP	Error
Apr 30, 2021 20:31	recar	CPP	Error
Apr 30, 2021 20:29	recar	CPP	Error
Apr 30, 2021 20:25	recar	CPP	Error
Apr 30, 2021 19:56	Stanislav-Povolotsky	CPP	Error
Apr 30, 2021 19:54	Stanislav-Povolotsky	CPP	Error
Apr 30, 2021 19:52	Stanislav-Povolotsky	CPP	Error
Apr 30, 2021 19:49	Stanislav-Povolotsky	CPP	Error
Apr 30, 2021 19:47	recar	CPP	Error
Apr 30, 2021 19:46	recar	CPP	Error
Apr 30, 2021 19:45	recar	CPP	Error
Apr 30, 2021 19:45	recar	CPP	Error
Apr 30, 2021 19:43	recar	CPP	Error
Apr 30, 2021 19:42	recar	CPP	Error
Apr 30, 2021 19:32	alex3d	CPP	Error
Apr 30, 2021 19:31	alex3d	CPP	Error
Apr 30, 2021 19:30	alex3d	CPP	Error
Apr 30, 2021 19:30	alex3d	CPP	Error
Apr 30, 2021 19:29	alex3d	CPP	Error
Apr 30, 2021 19:29	alex3d	CPP	Error
Apr 30, 2021 19:27	alex3d	CPP	Error
Apr 30, 2021 19:22	alex3d	CPP	Error
Apr 30, 2021 19:21	alex3d	CPP	Error
Apr 30, 2021 19:21	alex3d	CPP	Error
Apr 30, 2021 19:20	alex3d	CPP	Error
Apr 30, 2021 19:20	alex3d	CPP	Error
Apr 30, 2021 19:19	alex3d	CPP	Error
Apr 30, 2021 19:19	alex3d	CPP	Error
Apr 30, 2021 19:17	alex3d	CPP	Error
Apr 30, 2021 19:17	alex3d	CPP	Error
Apr 30, 2021 19:16	alex3d	CPP	Error
Apr 30, 2021 19:12	alex3d	CPP	Error
Apr 30, 2021 19:12	alex3d	CPP	Error
Apr 30, 2021 19:11	alex3d	CPP	Error
Apr 30, 2021 19:10	alex3d	CPP	Error
Apr 30, 2021 19:09	alex3d	CPP	Error
Apr 30, 2021 19:08	alex3d	CPP	Error
Apr 30, 2021 18:17	Dmitry Dolgopolov	CPP	Error
Apr 30, 2021 18:16	Dmitry Dolgopolov	CPP	Error
Apr 30, 2021 18:13	Dmitry Dolgopolov	CPP	Error
Apr 30, 2021 18:04	Dmitry Dolgopolov	CPP	Error
Apr 30, 2021 15:21	Andrey Tsvetkov	GO	Error
Apr 30, 2021 15:20	Andrey Tsvetkov	GO	Error
Apr 30, 2021 15:19	Andrey Tsvetkov	GO	Error
Apr 30, 2021 15:17	Andrey Tsvetkov	GO	Error
Apr 30, 2021 15:11	Andrey Tsvetkov	GO	Error
Apr 30, 2021 13:15	Stanislav-Povolotsky	CPP	Error
Apr 30, 2021 13:09	Stanislav-Povolotsky	CPP	Error
Apr 30, 2021 11:52	Stanislav-Povolotsky	CPP	Error
Apr 30, 2021 11:32	Stanislav-Povolotsky	CPP	Error
Apr 30, 2021 11:31	Stanislav-Povolotsky	CPP	Error
Apr 30, 2021 11:28	Stanislav-Povolotsky	CPP	Error
Apr 30, 2021 11:07	Stanislav-Povolotsky	CPP	Error
Apr 30, 2021 11:05	Stanislav-Povolotsky	CPP	Error
Apr 30, 2021 10:42	Stanislav-Povolotsky	CPP	Error
Apr 30, 2021 10:22	Stanislav-Povolotsky	CPP	Error
Apr 30, 2021 09:44	Stanislav-Povolotsky	CPP	Error
Apr 30, 2021 06:20	Yuriy Lyfenko	CPP	Error
Apr 30, 2021 06:17	Yuriy Lyfenko	CPP	Error
Apr 30, 2021 06:17	Yuriy Lyfenko	CPP	Error
Apr 30, 2021 06:14	Yuriy Lyfenko	CPP	Error
Apr 30, 2021 06:14	Yuriy Lyfenko	CPP	Error
Apr 30, 2021 06:13	Yuriy Lyfenko	CPP	Error
Apr 30, 2021 06:12	Yuriy Lyfenko	CPP	Error
Apr 30, 2021 06:10	Yuriy Lyfenko	CPP	Error
Apr 30, 2021 05:48	Yuriy Lyfenko	CPP	Error
Apr 30, 2021 05:47	Yuriy Lyfenko	CPP	Error
Apr 30, 2021 05:47	Yuriy Lyfenko	CPP	Error
Apr 30, 2021 05:46	Yuriy Lyfenko	CPP	Error
Apr 30, 2021 05:37	Yuriy Lyfenko	CPP	Error
Apr 30, 2021 05:36	Yuriy Lyfenko	CPP	Error
Apr 30, 2021 05:29	Yuriy Lyfenko	CPP	Error
Apr 29, 2021 22:38	Yurkov Aleksey	CPP	Error
Apr 29, 2021 22:35	Yurkov Aleksey	CPP	Error
Apr 29, 2021 22:15	Yurkov Aleksey	CPP	Error
Apr 29, 2021 22:07	Yurkov Aleksey	CPP	Error
Apr 29, 2021 22:06	Yurkov Aleksey	CPP	Error
Apr 29, 2021 21:58	Yurkov Aleksey	CPP	Error
Apr 29, 2021 21:35	Yurkov Aleksey	CPP	Error
Apr 29, 2021 21:25	Yuriy Lyfenko	CPP	Error

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