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
Jul 20, 2025 14:53	Aniruddha Deb	CPPg++13.3.0	Error
Jul 20, 2025 14:52	Aniruddha Deb	CPPg++13.3.0	Error
Jul 20, 2025 14:01	Aniruddha Deb	CPPg++13.3.0	Success	17,794
Jul 20, 2025 12:54	Aniruddha Deb	CPPg++13.3.0	Error
Jul 20, 2025 12:35	Aniruddha Deb	CPPg++13.3.0	Success	24,186
Jul 20, 2025 12:34	Aniruddha Deb	CPPg++13.3.0	Error
Jul 20, 2025 12:24	Aniruddha Deb	CPPg++13.3.0	Error
Jul 20, 2025 12:21	Aniruddha Deb	CPPg++13.3.0	Success	17,719+49.67 RP
Jul 20, 2025 10:47	Aniruddha Deb	CPPg++13.3.0	Success	45,282
Jul 20, 2025 08:01	Aniruddha Deb	CPPg++13.3.0	Error
Jul 20, 2025 08:01	Aniruddha Deb	CPPg++13.3.0	Success	19,429+0.71 RP
Jul 20, 2025 08:00	Aniruddha Deb	CPPg++13.3.0	Success	19,649
Jul 20, 2025 08:00	Aniruddha Deb	CPPg++13.3.0	Success	19,472
Jul 20, 2025 07:56	Aniruddha Deb	CPPg++13.3.0	Success	22,761
Jul 20, 2025 07:40	Aniruddha Deb	CPPg++13.3.0	Success	22,370
Jul 20, 2025 07:27	Aniruddha Deb	CPPg++13.3.0	Success	493,042
Jul 20, 2025 07:25	Aniruddha Deb	CPPg++13.3.0	Error
Jul 20, 2025 07:23	Aniruddha Deb	CPPg++13.3.0	Error
Jul 20, 2025 07:21	Aniruddha Deb	CPPg++13.3.0	Error
Jul 20, 2025 07:19	Aniruddha Deb	CPPg++13.3.0	Error
Jul 20, 2025 03:19	Cyril Sharma	CPPg++13.3.0	Success	25,271+395.71 RP
Jul 20, 2025 03:17	Cyril Sharma	CPPg++13.3.0	Error
Jul 20, 2025 02:18	Cyril Sharma	CPPg++13.3.0	Error
Jul 20, 2025 02:02	Cyril Sharma	CPPg++13.3.0	Error
Jul 20, 2025 01:58	Cyril Sharma	CPPg++13.3.0	Error
Jul 20, 2025 01:49	Cyril Sharma	CPPg++13.3.0	Error
Jul 20, 2025 00:44	Cyril Sharma	CPPg++13.3.0	Error
Jul 15, 2025 20:52	Aniruddha Deb	CPPg++13.3.0	Error
Jul 14, 2025 22:48	Aniruddha Deb	CPPg++13.3.0	Error
Jul 14, 2025 22:47	Aniruddha Deb	CPPg++13.3.0	Error
Jul 13, 2025 16:06	Aniruddha Deb	CPPg++13.3.0	Error
Jul 13, 2025 16:06	Aniruddha Deb	CPPg++13.3.0	Error
Jul 13, 2025 16:00	Aniruddha Deb	CPPg++13.3.0	Error
Jul 13, 2025 15:59	Aniruddha Deb	CPPg++13.3.0	Error
Jul 13, 2025 15:51	Aniruddha Deb	CPPg++13.3.0	Error
Jul 12, 2025 17:10	Aniruddha Deb	CPPg++13.3.0	Success	376,505
Jul 12, 2025 17:04	Aniruddha Deb	CPPg++13.3.0	Success	376,906
Jul 12, 2025 17:01	Aniruddha Deb	CPPg++13.3.0	Success	376,443
Jul 12, 2025 16:57	Aniruddha Deb	CPPg++13.3.0	Success	378,312
Jul 12, 2025 16:49	Aniruddha Deb	CPPg++13.3.0	Success	378,521
Jul 12, 2025 16:48	Aniruddha Deb	CPPg++13.3.0	Success	377,745
Jul 12, 2025 16:47	Aniruddha Deb	CPPg++13.3.0	Success	379,132
Jul 12, 2025 16:44	Aniruddha Deb	CPPg++13.3.0	Success	378,914
Jul 12, 2025 16:43	Aniruddha Deb	CPPg++13.3.0	Success	518,114
Jul 12, 2025 16:40	Aniruddha Deb	CPPg++13.3.0	Error
Jul 12, 2025 16:38	Aniruddha Deb	CPPg++13.3.0	Error
Jun 27, 2025 10:47	Elijah Kin	CPPclang++18.1.3	Success	491,666+20.34 RP
Jun 25, 2025 02:13	Ian Mckibben	CPPclang++18.1.3	Success	15,349
Jun 25, 2025 02:13	Ian Mckibben	CPPg++13.3.0	Success	15,008
Jun 25, 2025 02:08	Ian Mckibben	CPPg++13.3.0	Error	+0.80 RP
Jun 25, 2025 02:03	Ian Mckibben	CPPg++13.3.0	Success	15,089
Jun 25, 2025 02:02	Ian Mckibben	CPPg++13.3.0	Success	15,053
Jun 25, 2025 02:00	Ian Mckibben	CPPg++13.3.0	Success	15,293
Jun 25, 2025 01:59	Ian Mckibben	CPPg++13.3.0	Success	14,998+7.04 RP
Jun 25, 2025 01:58	Ian Mckibben	CPPg++13.3.0	Success	15,358
Jun 25, 2025 01:46	Ian Mckibben	CPPclang++18.1.3	Success	15,271
Jun 25, 2025 01:44	Ian Mckibben	CPPclang++18.1.3	Success	15,170
Jun 25, 2025 01:37	Ian Mckibben	CPPclang++18.1.3	Success	15,312
Jun 25, 2025 01:35	Ian Mckibben	CPPclang++18.1.3	Error
Jun 25, 2025 01:34	Ian Mckibben	CPPclang++18.1.3	Success	15,303
Jun 25, 2025 00:20	Ian Mckibben	CPPclang++18.1.3	Error
Jun 25, 2025 00:19	Ian Mckibben	CPPclang++18.1.3	Success	572,276
Jun 25, 2025 00:17	Ian Mckibben	CPPclang++18.1.3	Success	575,831
Jun 25, 2025 00:15	Ian Mckibben	CPPclang++18.1.3	Success	572,071
Jun 24, 2025 23:53	Ian Mckibben	CPPclang++18.1.3	Success	15,357
Jun 24, 2025 23:49	Ian Mckibben	CPPclang++18.1.3	Success	15,406
Jun 24, 2025 23:48	Ian Mckibben	CPPclang++18.1.3	Success	15,431
Jun 24, 2025 23:48	Ian Mckibben	CPPclang++18.1.3	Success	15,401
Jun 24, 2025 23:47	Ian Mckibben	CPPg++13.3.0	Error
Jun 24, 2025 23:46	Ian Mckibben	CPPg++13.3.0	Error
Jun 24, 2025 23:24	Ian Mckibben	CPPg++13.3.0	Success	15,417
Jun 24, 2025 23:19	Ian Mckibben	CPPg++13.3.0	Success	15,485
Jun 24, 2025 23:19	Ian Mckibben	CPPg++13.3.0	Success	15,747
Jun 24, 2025 22:15	Ian Mckibben	CPPg++13.3.0	Error
Jun 24, 2025 22:06	Ian Mckibben	CPPg++13.3.0	Success	21,143
Jun 24, 2025 22:01	Ian Mckibben	CPPg++13.3.0	Success	32,496
Jun 24, 2025 22:01	Ian Mckibben	CPPg++13.3.0	Success	25,813
Jun 24, 2025 22:00	Ian Mckibben	CPPg++13.3.0	Success	29,555
Jun 24, 2025 21:57	Ian Mckibben	CPPg++13.3.0	Success	27,924
Jun 24, 2025 21:53	Ian Mckibben	CPPg++13.3.0	Success	29,175
Jun 24, 2025 21:49	Ian Mckibben	CPPg++13.3.0	Success	25,830
Jun 24, 2025 21:48	Ian Mckibben	CPPg++13.3.0	Success	25,773
Jun 24, 2025 21:43	Ian Mckibben	CPPg++13.3.0	Success	22,833
Jun 24, 2025 21:41	Ian Mckibben	CPPg++13.3.0	Success	22,296
Jun 24, 2025 21:40	Ian Mckibben	CPPg++13.3.0	Error
Jun 24, 2025 21:39	Ian Mckibben	CPPg++13.3.0	Error
Jun 23, 2025 17:50	Ian Mckibben	CPPg++13.3.0	Success	28,805
Jun 23, 2025 17:47	Ian Mckibben	CPPg++13.3.0	Success	29,148
Jun 23, 2025 17:34	Ian Mckibben	CPPg++13.3.0	Success	21,413
Jun 23, 2025 17:34	Ian Mckibben	CPPg++13.3.0	Success	21,344
Jun 23, 2025 17:32	Ian Mckibben	CPPg++13.3.0	Success	20,551
Jun 23, 2025 17:31	Ian Mckibben	CPPg++13.3.0	Success	21,096
Jun 23, 2025 17:30	Ian Mckibben	CPPg++13.3.0	Success	24,994
Jun 23, 2025 17:28	Ian Mckibben	CPPg++13.3.0	Success	29,284
Jun 23, 2025 17:22	Ian Mckibben	CPPg++13.3.0	Success	31,690
Jun 23, 2025 17:13	Ian Mckibben	CPPg++13.3.0	Success	30,637
Jun 23, 2025 16:46	Ian Mckibben	CPPg++13.3.0	Success	76,599
Jun 23, 2025 16:31	Ian Mckibben	CPPg++13.3.0	Success	96,907
Jun 23, 2025 16:29	Ian Mckibben	CPPg++13.3.0	Success	121,349
Jun 23, 2025 16:07	Ian Mckibben	CPPg++13.3.0	Success	198,173

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