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
Jun 20, 2026 19:08	Victor Mercklé	CPPg++13.3.0	Testing
Jun 20, 2026 19:02	Victor Mercklé	CPPg++13.3.0	Success	7,516
Jun 20, 2026 18:56	Victor Mercklé	CPPg++13.3.0	Success	6,542
Jun 20, 2026 18:51	Victor Mercklé	CPPg++13.3.0	Success	7,178
Jun 20, 2026 18:40	Victor Mercklé	CPPg++13.3.0	Success	6,508
Jun 20, 2026 18:32	Victor Mercklé	CPPg++13.3.0	Success	6,460
Jun 20, 2026 18:27	Victor Mercklé	CPPg++13.3.0	Success	6,431
Jun 20, 2026 18:21	Victor Mercklé	CPPg++13.3.0	Success	7,162
Jun 20, 2026 18:11	Victor Mercklé	CPPg++13.3.0	Success	6,447
Jun 20, 2026 18:04	Victor Mercklé	CPPg++13.3.0	Success	6,589
Jun 20, 2026 17:54	Victor Mercklé	CPPg++13.3.0	Success	6,591
Jun 20, 2026 17:49	Victor Mercklé	CPPg++13.3.0	Success	7,015
Jun 20, 2026 17:41	Victor Mercklé	CPPg++13.3.0	Success	9,349
Jun 20, 2026 17:36	Victor Mercklé	CPPg++13.3.0	Success	9,161
Jun 20, 2026 17:29	Victor Mercklé	CPPg++13.3.0	Success	6,565
Jun 20, 2026 17:10	Victor Mercklé	CPPg++13.3.0	Success	6,419
Jun 20, 2026 17:05	Victor Mercklé	CPPg++13.3.0	Success	6,438
Jun 20, 2026 16:57	Victor Mercklé	CPPg++13.3.0	Success	10,207
Jun 20, 2026 16:52	Victor Mercklé	CPPg++13.3.0	Success	6,408
Jun 20, 2026 16:47	Victor Mercklé	CPPg++13.3.0	Success	6,454
Jun 20, 2026 16:42	Victor Mercklé	CPPg++13.3.0	Success	12,340
Jun 20, 2026 16:37	Victor Mercklé	CPPg++13.3.0	Success	8,797
Jun 20, 2026 16:06	Victor Mercklé	CPPg++13.3.0	Success	6,483
Jun 20, 2026 16:01	Victor Mercklé	CPPg++13.3.0	Success	6,423
Jun 20, 2026 15:52	Victor Mercklé	CPPg++13.3.0	Success	9,135
Jun 20, 2026 15:46	Victor Mercklé	CPPg++13.3.0	Success	8,768
Jun 20, 2026 15:31	Victor Mercklé	CPPg++13.3.0	Success	6,722
Jun 20, 2026 15:17	Victor Mercklé	CPPg++13.3.0	Success	6,869
Jun 20, 2026 15:10	Victor Mercklé	CPPg++13.3.0	Success	6,655
Jun 20, 2026 15:05	Victor Mercklé	CPPg++13.3.0	Success	7,340
Jun 20, 2026 14:54	Victor Mercklé	CPPg++13.3.0	Success	6,415
Jun 20, 2026 14:49	Victor Mercklé	CPPg++13.3.0	Success	6,714
Jun 20, 2026 14:35	Victor Mercklé	CPPg++13.3.0	Success	6,457
Jun 20, 2026 14:27	Victor Mercklé	CPPg++13.3.0	Success	6,635
Jun 20, 2026 14:22	Victor Mercklé	CPPg++13.3.0	Success	7,838
Jun 20, 2026 14:12	Victor Mercklé	CPPg++13.3.0	Success	6,990
Jun 20, 2026 14:00	Victor Mercklé	CPPg++13.3.0	Success	9,889
Jun 20, 2026 13:54	Victor Mercklé	CPPg++13.3.0	Success	7,556
Jun 20, 2026 13:47	Victor Mercklé	CPPg++13.3.0	Success	14,281
Jun 20, 2026 13:41	Victor Mercklé	CPPg++13.3.0	Success	23,684
Jun 20, 2026 13:23	Victor Mercklé	CPPg++13.3.0	Success	6,720
Jun 20, 2026 13:18	Victor Mercklé	CPPg++13.3.0	Success	7,334
Jun 20, 2026 13:09	Victor Mercklé	CPPg++13.3.0	Success	6,593
Jun 20, 2026 12:54	Victor Mercklé	CPPg++13.3.0	Success	6,433
Jun 20, 2026 12:49	Victor Mercklé	CPPg++13.3.0	Error
Jun 20, 2026 12:44	Victor Mercklé	CPPg++13.3.0	Success	6,402
Jun 20, 2026 12:29	Victor Mercklé	CPPg++13.3.0	Success	6,388
Jun 20, 2026 11:45	Victor Mercklé	CPPg++13.3.0	Success	7,158
Jun 20, 2026 11:37	Victor Mercklé	CPPg++13.3.0	Success	7,150
Jun 20, 2026 11:32	Victor Mercklé	CPPg++13.3.0	Success	6,469
Jun 20, 2026 11:24	Victor Mercklé	CPPg++13.3.0	Success	13,915
Jun 20, 2026 11:19	Victor Mercklé	CPPg++13.3.0	Success	14,027
Jun 20, 2026 11:00	Victor Mercklé	CPPg++13.3.0	Success	6,668
Jun 20, 2026 10:52	Victor Mercklé	CPPg++13.3.0	Success	6,618
Jun 20, 2026 10:44	Victor Mercklé	CPPg++13.3.0	Success	9,940
Jun 20, 2026 10:29	Victor Mercklé	CPPg++13.3.0	Success	6,589
Jun 20, 2026 10:21	Victor Mercklé	CPPg++13.3.0	Success	6,426
Jun 20, 2026 10:16	Victor Mercklé	CPPg++13.3.0	Success	6,419
Jun 20, 2026 10:10	Victor Mercklé	CPPg++13.3.0	Success	6,436
Jun 20, 2026 10:05	Victor Mercklé	CPPg++13.3.0	Success	6,425
Jun 20, 2026 09:15	Victor Mercklé	CPPg++13.3.0	Success	7,346
Jun 20, 2026 08:57	Victor Mercklé	CPPg++13.3.0	Success	8,355
Jun 20, 2026 08:52	Victor Mercklé	CPPg++13.3.0	Success	8,076
Jun 20, 2026 08:40	Victor Mercklé	CPPg++13.3.0	Success	6,390
Jun 20, 2026 08:30	Victor Mercklé	CPPg++13.3.0	Success	6,419
Jun 20, 2026 08:14	Victor Mercklé	CPPg++13.3.0	Success	6,416
Jun 20, 2026 08:09	Victor Mercklé	CPPg++13.3.0	Success	6,497
Jun 20, 2026 08:04	Victor Mercklé	CPPg++13.3.0	Success	6,393
Jun 20, 2026 07:53	Victor Mercklé	CPPg++13.3.0	Success	6,499
Jun 20, 2026 07:52	A_Shaman	CPPg++10.5.0	Error
Jun 20, 2026 07:48	Victor Mercklé	CPPg++13.3.0	Success	6,446
Jun 20, 2026 07:39	Victor Mercklé	CPPg++13.3.0	Success	6,499
Jun 20, 2026 07:34	Victor Mercklé	CPPg++13.3.0	Success	6,410
Jun 20, 2026 07:29	Victor Mercklé	CPPg++13.3.0	Success	6,385
Jun 20, 2026 07:24	Victor Mercklé	CPPg++13.3.0	Success	6,374+0.74 RP
Jun 20, 2026 07:19	Victor Mercklé	CPPg++13.3.0	Success	6,389
Jun 20, 2026 07:09	Victor Mercklé	CPPg++13.3.0	Success	6,394
Jun 20, 2026 07:04	Victor Mercklé	CPPg++13.3.0	Success	6,390
Jun 20, 2026 06:59	Victor Mercklé	CPPg++13.3.0	Success	6,549
Jun 20, 2026 06:52	Victor Mercklé	CPPg++13.3.0	Success	6,377+4.41 RP
Jun 20, 2026 06:47	Victor Mercklé	CPPg++13.3.0	Success	6,501
Jun 20, 2026 06:33	Victor Mercklé	CPPg++13.3.0	Success	6,414
Jun 20, 2026 06:27	Victor Mercklé	CPPg++13.3.0	Success	6,402
Jun 20, 2026 06:22	Victor Mercklé	CPPg++13.3.0	Success	6,405
Jun 20, 2026 06:16	Victor Mercklé	CPPg++13.3.0	Success	6,433
Jun 20, 2026 06:11	Victor Mercklé	CPPg++13.3.0	Success	6,410
Jun 20, 2026 06:06	Victor Mercklé	CPPg++13.3.0	Success	6,404
Jun 20, 2026 06:01	Victor Mercklé	CPPg++13.3.0	Success	6,405
Jun 20, 2026 05:56	Victor Mercklé	CPPg++13.3.0	Success	6,395+0.24 RP
Jun 20, 2026 05:47	Victor Mercklé	CPPg++13.3.0	Success	6,445
Jun 20, 2026 05:42	Victor Mercklé	CPPg++13.3.0	Success	6,425
Jun 20, 2026 05:37	Victor Mercklé	CPPg++13.3.0	Success	6,427
Jun 20, 2026 05:28	Victor Mercklé	CPPg++13.3.0	Success	6,405
Jun 20, 2026 05:23	Victor Mercklé	CPPg++13.3.0	Success	6,401
Jun 20, 2026 05:15	Victor Mercklé	CPPg++13.3.0	Success	6,396+1.47 RP
Jun 20, 2026 05:10	Victor Mercklé	CPPg++13.3.0	Success	6,417
Jun 20, 2026 05:05	Victor Mercklé	CPPg++13.3.0	Success	6,451
Jun 20, 2026 05:00	Victor Mercklé	CPPg++13.3.0	Success	8,427
Jun 20, 2026 04:53	Victor Mercklé	CPPg++13.3.0	Success	13,660
Jun 20, 2026 04:39	Victor Mercklé	CPPg++13.3.0	Success	6,525

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