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 2, 2026 13:41	Victor Mercklé	CPPg++13.3.0	Success	5,264
Jul 2, 2026 13:33	Victor Mercklé	CPPg++13.3.0	Success	3,275+13.00 RP
Jul 2, 2026 13:28	Victor Mercklé	CPPg++13.3.0	Success	3,316
Jul 2, 2026 13:15	Victor Mercklé	CPPg++13.3.0	Success	3,774
Jul 2, 2026 03:37	Genos0	CPPg++13.3.0	Success	201,743
Jul 2, 2026 03:31	Genos0	CPPg++13.3.0	Success	203,350
Jul 2, 2026 03:28	Genos0	CPPg++14.2.0	Success	202,492
Jul 2, 2026 03:22	Genos0	CPPg++10.5.0	Success	192,445+51.96 RP
Jul 1, 2026 17:35	Victor Mercklé	CPPg++13.3.0	Success	3,300
Jul 1, 2026 17:27	Victor Mercklé	CPPg++13.3.0	Success	3,895
Jun 30, 2026 15:13	Victor Mercklé	CPPg++13.3.0	Success	3,736
Jun 30, 2026 14:56	Victor Mercklé	CPPg++13.3.0	Success	4,104
Jun 29, 2026 10:22	Du Bin	CPPg++10.5.0	Success	277,254
Jun 28, 2026 22:33	Victor Mercklé	CPPg++13.3.0	Success	3,308
Jun 28, 2026 22:18	Victor Mercklé	CPPg++13.3.0	Success	5,706
Jun 28, 2026 16:23	Victor Mercklé	CPPg++13.3.0	Success	3,289+1.85 RP
Jun 28, 2026 16:18	Victor Mercklé	CPPg++13.3.0	Success	3,291+6.45 RP
Jun 28, 2026 16:10	Victor Mercklé	CPPg++13.3.0	Success	4,182
Jun 28, 2026 16:04	Du Bin	CPPg++10.5.0	Success	192,606+56.92 RP
Jun 28, 2026 15:55	Victor Mercklé	CPPg++13.3.0	Success	3,634
Jun 28, 2026 15:37	Victor Mercklé	CPPg++13.3.0	Success	3,299
Jun 28, 2026 15:30	Victor Mercklé	CPPg++13.3.0	Success	3,403
Jun 28, 2026 15:25	Victor Mercklé	CPPg++13.3.0	Success	81,010
Jun 28, 2026 15:20	Victor Mercklé	CPPg++13.3.0	Error
Jun 28, 2026 14:09	Victor Mercklé	CPPg++13.3.0	Success	3,298+4.59 RP
Jun 28, 2026 13:59	Victor Mercklé	CPPg++13.3.0	Error
Jun 28, 2026 12:44	Victor Mercklé	CPPg++13.3.0	Success	3,331
Jun 28, 2026 12:37	Victor Mercklé	CPPg++13.3.0	Success	3,901
Jun 28, 2026 12:31	Victor Mercklé	CPPg++13.3.0	Success	92,540
Jun 28, 2026 12:24	Victor Mercklé	CPPg++13.3.0	Success	6,225
Jun 28, 2026 12:17	Victor Mercklé	CPPg++13.3.0	Success	3,320
Jun 28, 2026 12:06	Victor Mercklé	CPPg++13.3.0	Error
Jun 28, 2026 11:58	Victor Mercklé	CPPg++13.3.0	Success	3,361
Jun 28, 2026 11:52	Victor Mercklé	CPPg++13.3.0	Success	3,321
Jun 28, 2026 10:24	Victor Mercklé	CPPg++13.3.0	Success	3,306
Jun 28, 2026 10:16	Victor Mercklé	CPPg++13.3.0	Success	3,321
Jun 28, 2026 10:11	Victor Mercklé	CPPg++13.3.0	Success	3,328
Jun 28, 2026 10:06	Victor Mercklé	CPPg++13.3.0	Error
Jun 28, 2026 09:57	Victor Mercklé	CPPg++13.3.0	Success	3,323
Jun 28, 2026 09:49	Victor Mercklé	CPPg++13.3.0	Error
Jun 28, 2026 09:03	Victor Mercklé	RUSTrust-1.95.0	Success	3,339+82.85 RP
Jun 28, 2026 08:44	Victor Mercklé	CPPg++13.3.0	Success	3,309
Jun 28, 2026 08:34	Victor Mercklé	CPPg++13.3.0	Success	3,310
Jun 28, 2026 08:22	Victor Mercklé	CPPg++13.3.0	Error
Jun 28, 2026 08:07	Victor Mercklé	CPPg++13.3.0	Success	3,303+7.32 RP
Jun 28, 2026 07:58	Victor Mercklé	CPPg++13.3.0	Success	3,662
Jun 28, 2026 07:47	Victor Mercklé	CPPg++13.3.0	Success	3,369
Jun 28, 2026 06:13	Victor Mercklé	CPPg++13.3.0	Success	198,502
Jun 28, 2026 06:02	Victor Mercklé	CPPg++13.3.0	Error
Jun 28, 2026 05:57	Victor Mercklé	CPPg++13.3.0	Success	265,444
Jun 28, 2026 05:46	Victor Mercklé	CPPg++13.3.0	Success	92,165
Jun 28, 2026 05:38	Victor Mercklé	CPPg++13.3.0	Success	3,452
Jun 28, 2026 05:33	Victor Mercklé	CPPg++13.3.0	Success	93,810
Jun 28, 2026 03:12	Victor Mercklé	ZIG0.16.0	Success	3,366+79.88 RP
Jun 28, 2026 02:51	Victor Mercklé	CPPg++13.3.0	Success	3,323
Jun 28, 2026 02:36	Victor Mercklé	CPPg++13.3.0	Success	3,337
Jun 28, 2026 02:23	Victor Mercklé	CPPg++13.3.0	Success	3,341
Jun 28, 2026 02:11	Victor Mercklé	CPPg++13.3.0	Success	3,311+3.64 RP
Jun 28, 2026 02:01	Victor Mercklé	CPPg++13.3.0	Error
Jun 28, 2026 01:46	Victor Mercklé	CPPg++13.3.0	Success	3,332
Jun 28, 2026 01:23	Victor Mercklé	CPPg++13.3.0	Error
Jun 28, 2026 01:12	Victor Mercklé	CPPg++13.3.0	Success	3,331
Jun 28, 2026 00:53	Victor Mercklé	CPPg++13.3.0	Success	3,487
Jun 28, 2026 00:45	Victor Mercklé	CPPg++13.3.0	Success	4,243
Jun 28, 2026 00:39	Victor Mercklé	CPPg++13.3.0	Error
Jun 28, 2026 00:23	Victor Mercklé	CPPg++13.3.0	Success	6,259+5.00 RP
Jun 27, 2026 23:57	Victor Mercklé	CPPg++13.3.0	Success	3,322
Jun 27, 2026 23:49	Victor Mercklé	CPPg++13.3.0	Success	3,332
Jun 27, 2026 23:44	Victor Mercklé	CPPg++13.3.0	Success	3,315+7.26 RP
Jun 27, 2026 23:39	Victor Mercklé	CPPg++13.3.0	Success	3,350
Jun 27, 2026 23:30	Victor Mercklé	CPPg++13.3.0	Error
Jun 27, 2026 23:25	Victor Mercklé	CPPg++13.3.0	Success	3,340
Jun 27, 2026 23:06	Victor Mercklé	CPPg++13.3.0	Success	3,335
Jun 27, 2026 22:59	Victor Mercklé	CPPg++13.3.0	Success	3,323+4.52 RP
Jun 27, 2026 22:51	Victor Mercklé	CPPg++13.3.0	Success	3,374
Jun 27, 2026 22:46	Victor Mercklé	CPPg++13.3.0	Success	3,360
Jun 27, 2026 22:41	Victor Mercklé	CPPg++13.3.0	Success	3,348
Jun 27, 2026 22:32	Victor Mercklé	CPPg++13.3.0	Success	3,328+13.48 RP
Jun 27, 2026 22:23	Victor Mercklé	CPPg++13.3.0	Success	3,343+39.73 RP
Jun 27, 2026 22:15	Victor Mercklé	CPPg++13.3.0	Success	3,717
Jun 27, 2026 22:09	Victor Mercklé	CPPg++13.3.0	Success	4,071
Jun 27, 2026 22:04	Victor Mercklé	CPPg++13.3.0	Success	3,405
Jun 27, 2026 21:59	Victor Mercklé	CPPg++13.3.0	Success	4,035
Jun 27, 2026 21:46	Victor Mercklé	CPPg++13.3.0	Success	5,754
Jun 27, 2026 21:39	Victor Mercklé	CPPg++13.3.0	Success	3,665
Jun 27, 2026 21:30	Victor Mercklé	CPPg++13.3.0	Success	3,647
Jun 27, 2026 21:23	Victor Mercklé	CPPg++13.3.0	Success	3,392
Jun 27, 2026 21:18	Victor Mercklé	CPPg++13.3.0	Success	3,929
Jun 27, 2026 21:12	Victor Mercklé	CPPg++13.3.0	Success	3,631
Jun 27, 2026 21:02	Victor Mercklé	CPPg++13.3.0	Success	4,461
Jun 27, 2026 20:51	Victor Mercklé	CPPg++13.3.0	Success	3,392
Jun 27, 2026 20:41	Victor Mercklé	CPPg++13.3.0	Success	3,391
Jun 27, 2026 20:36	Victor Mercklé	CPPg++13.3.0	Success	3,388+3.48 RP
Jun 27, 2026 20:30	Victor Mercklé	CPPg++13.3.0	Success	3,392+12.12 RP
Jun 27, 2026 20:22	Victor Mercklé	CPPg++13.3.0	Success	3,408
Jun 27, 2026 20:17	Victor Mercklé	CPPg++13.3.0	Success	3,412
Jun 27, 2026 19:57	Victor Mercklé	GOgo1.26.2	Success	3,425+669.99 RP
Jun 27, 2026 19:51	Victor Mercklé	RUSTrust-1.95.0	Success	3,434+820.44 RP
Jun 27, 2026 19:37	Victor Mercklé	CSHARP10.0.7	Success	3,436+1'380.14 RP
Jun 27, 2026 19:27	Victor Mercklé	ZIG0.16.0	Error

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