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 2, 2021 23:16	Yurkov Aleksey	CPP	Error
May 2, 2021 23:15	Yurkov Aleksey	CPP	Error
May 2, 2021 23:09	Yurkov Aleksey	CPP	Error
May 2, 2021 22:45	Yurkov Aleksey	CPP	Error
May 2, 2021 22:43	Yurkov Aleksey	CPP	Error
May 2, 2021 22:40	Yurkov Aleksey	CPP	Error
May 2, 2021 01:31	Yurkov Aleksey	CPP	Error
May 2, 2021 01:29	Yurkov Aleksey	CPP	Error
May 2, 2021 01:24	Yurkov Aleksey	CPP	Error
May 2, 2021 00:45	Yurkov Aleksey	CPP	Error
May 2, 2021 00:45	Yurkov Aleksey	CPP	Error
May 2, 2021 00:44	Yurkov Aleksey	CPP	Error
May 2, 2021 00:43	Yurkov Aleksey	CPP	Error
May 2, 2021 00:43	Yurkov Aleksey	CPP	Error
May 2, 2021 00:42	Yurkov Aleksey	CPP	Error
May 2, 2021 00:42	Yurkov Aleksey	CPP	Error
May 2, 2021 00:40	Yurkov Aleksey	CPP	Error
May 2, 2021 00:38	Yurkov Aleksey	CPP	Error
May 2, 2021 00:38	Yurkov Aleksey	CPP	Error
May 2, 2021 00:36	Yurkov Aleksey	CPP	Error
May 1, 2021 22:51	Yuriy Lyfenko	CPP	Error
May 1, 2021 22:50	Yuriy Lyfenko	CPP	Error
May 1, 2021 22:50	Yuriy Lyfenko	CPP	Error
May 1, 2021 22:49	Yuriy Lyfenko	CPP	Error
May 1, 2021 22:47	Yuriy Lyfenko	CPP	Error
May 1, 2021 22:43	Yuriy Lyfenko	CPP	Error
May 1, 2021 22:42	Yuriy Lyfenko	CPP	Error
May 1, 2021 22:40	Yuriy Lyfenko	CPP	Error
May 1, 2021 21:43	Yuriy Lyfenko	CPP	Error
May 1, 2021 21:43	Yuriy Lyfenko	CPP	Error
May 1, 2021 21:42	Yuriy Lyfenko	CPP	Error
May 1, 2021 21:39	Yuriy Lyfenko	CPP	Error
May 1, 2021 21:39	Yuriy Lyfenko	CPP	Error
May 1, 2021 21:37	Yuriy Lyfenko	CPP	Error
May 1, 2021 21:34	Yuriy Lyfenko	CPP	Error
May 1, 2021 21:33	Yuriy Lyfenko	CPP	Error
May 1, 2021 21:32	Yuriy Lyfenko	CPP	Error
May 1, 2021 21:31	Yuriy Lyfenko	CPP	Error
May 1, 2021 21:27	Yuriy Lyfenko	CPP	Error
May 1, 2021 21:25	Yuriy Lyfenko	CPP	Error
May 1, 2021 21:24	Yuriy Lyfenko	CPP	Error
May 1, 2021 21:24	Yuriy Lyfenko	CPP	Error
May 1, 2021 21:17	Yuriy Lyfenko	CPP	Error
May 1, 2021 21:16	Yuriy Lyfenko	CPP	Error
May 1, 2021 21:15	Yuriy Lyfenko	CPP	Error
May 1, 2021 20:32	Dmitry Dolgopolov	CPP	Error
May 1, 2021 20:04	Dmitry Dolgopolov	CPP	Error
May 1, 2021 20:04	recar	CPP	Error
May 1, 2021 20:03	recar	CPP	Error
May 1, 2021 20:02	recar	CPP	Error
May 1, 2021 20:02	Yuriy Lyfenko	CPP	Error
May 1, 2021 20:00	recar	CPP	Error
May 1, 2021 19:59	Yuriy Lyfenko	CPP	Error
May 1, 2021 19:58	Yuriy Lyfenko	CPP	Error
May 1, 2021 19:56	Yuriy Lyfenko	CPP	Error
May 1, 2021 19:54	Yuriy Lyfenko	CPP	Error
May 1, 2021 19:50	recar	CPP	Error
May 1, 2021 19:47	recar	CPP	Error
May 1, 2021 17:56	Ross Haugh	CPP	Error
May 1, 2021 17:23	Dmitry Dolgopolov	CPP	Error
May 1, 2021 17:22	Dmitry Dolgopolov	CPP	Error
May 1, 2021 17:14	Dmitry Dolgopolov	CPP	Error
May 1, 2021 17:12	Dmitry Dolgopolov	CPP	Error
May 1, 2021 16:58	Dmitry Dolgopolov	CPP	Error
May 1, 2021 16:23	Dmitry Dolgopolov	CPP	Error
May 1, 2021 16:16	Dmitry Dolgopolov	CPP	Error
May 1, 2021 16:15	Dmitry Dolgopolov	CPP	Error
May 1, 2021 16:13	Dmitry Dolgopolov	CPP	Error
May 1, 2021 16:12	Dmitry Dolgopolov	CPP	Error
May 1, 2021 16:12	Dmitry Dolgopolov	CPP	Error
May 1, 2021 16:10	Dmitry Dolgopolov	CPP	Error
May 1, 2021 16:09	Dmitry Dolgopolov	CPP	Error
May 1, 2021 16:00	Dmitry Dolgopolov	CPP	Error
May 1, 2021 15:57	Dmitry Dolgopolov	CPP	Error
May 1, 2021 15:55	Dmitry Dolgopolov	CPP	Error
May 1, 2021 15:53	Dmitry Dolgopolov	CPP	Error
May 1, 2021 15:52	Dmitry Dolgopolov	CPP	Error
May 1, 2021 15:51	Dmitry Dolgopolov	CPP	Error
May 1, 2021 15:50	Dmitry Dolgopolov	CPP	Error
May 1, 2021 15:50	Dmitry Dolgopolov	CPP	Error
May 1, 2021 14:27	Andrey Tsvetkov	GO	Error
May 1, 2021 13:06	alex3d	CPP	Error
May 1, 2021 13:06	alex3d	CPP	Error
May 1, 2021 13:05	alex3d	CPP	Error
May 1, 2021 13:04	alex3d	CPP	Error
May 1, 2021 13:03	alex3d	CPP	Error
May 1, 2021 13:01	alex3d	CPP	Error
May 1, 2021 13:01	alex3d	CPP	Error
May 1, 2021 12:59	alex3d	CPP	Error
May 1, 2021 12:58	alex3d	CPP	Error
May 1, 2021 12:57	alex3d	CPP	Error
May 1, 2021 12:55	alex3d	CPP	Error
May 1, 2021 12:54	alex3d	CPP	Error
May 1, 2021 12:51	alex3d	CPP	Error
May 1, 2021 12:47	alex3d	CPP	Error
May 1, 2021 12:45	alex3d	CPP	Error
May 1, 2021 12:43	alex3d	CPP	Error
May 1, 2021 12:41	alex3d	CPP	Error
May 1, 2021 12:41	alex3d	CPP	Error
May 1, 2021 12:39	alex3d	CPP	Error

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