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
Sep 10, 2026 15:29	m-0451	CPPg++10.5.0	Success	194,000
Sep 10, 2026 14:09	Andrew Epstein	CPPclang++20.1.2	Success	17,647
Sep 10, 2026 14:01	Andrew Epstein	CPPg++14.2.0	Success	164,042
Sep 10, 2026 14:00	Andrew Epstein	CPPg++14.2.0	Success	17,529
Sep 8, 2026 22:52	Leonardo Pedrozo Amaral	CPPg++10.5.0	Success	45,533
Sep 7, 2026 21:25	Leonardo Pedrozo Amaral	CPPg++10.5.0	Success	69,266
Sep 7, 2026 16:52	Leonardo Pedrozo Amaral	CPPg++10.5.0	Success	37,889+124.27 RP
Sep 5, 2026 11:26	Haha Expert	CSHARP9.0.19	Success	88,176
Sep 5, 2026 01:04	Victor Mercklé	CPPg++14.2.0	Success	2,931
Sep 4, 2026 23:42	Victor Mercklé	CPPg++14.2.0	Success	6,196
Sep 4, 2026 15:54	Victor Mercklé	CPPg++14.2.0	Success	6,477
Sep 4, 2026 10:07	Victor Mercklé	CPPg++13.3.0	Success	2,900
Sep 4, 2026 09:26	Victor Mercklé	CPPg++13.3.0	Success	2,882+2.40 RP
Sep 4, 2026 08:53	Victor Mercklé	CPPg++14.2.0	Success	2,952
Sep 4, 2026 08:18	Victor Mercklé	CPPg++14.2.0	Success	3,166
Sep 4, 2026 07:39	Victor Mercklé	CPPg++14.2.0	Success	2,936
Sep 4, 2026 07:26	Victor Mercklé	CPPg++14.2.0	Success	2,898
Sep 4, 2026 07:07	Victor Mercklé	CPPg++14.2.0	Success	6,356
Sep 4, 2026 07:00	Victor Mercklé	CPPg++13.3.0	Error
Sep 4, 2026 06:56	Victor Mercklé	CPPg++13.3.0	Success	2,883+31.14 RP
Aug 31, 2026 08:46	Victor Mercklé	CSHARP10.0.7	Error
Aug 31, 2026 08:40	Victor Mercklé	GOgo1.26.2	Error
Aug 31, 2026 08:37	Victor Mercklé	ZIG0.16.0	Error
Aug 31, 2026 08:36	Victor Mercklé	RUSTrust-1.95.0	Error	+2.38 RP
Aug 31, 2026 08:11	Tomislav Tunkovic	ZIG0.15.1	Success	3,054+31.85 RP
Aug 31, 2026 08:06	Tomislav Tunkovic	GOgo1.26.2	Success	3,039+166.53 RP
Aug 31, 2026 08:02	Tomislav Tunkovic	CSHARP9.0.15	Success	3,058+187.50 RP
Aug 31, 2026 08:00	Tomislav Tunkovic	RUSTrust-1.95.0	Success	3,064+209.34 RP
Aug 31, 2026 02:17	Tomislav Tunkovic	CPPclang++14.0.6	Success	3,037
Aug 25, 2026 07:21	Haha Expert	CSHARP9.0.15	Error
Aug 25, 2026 07:09	Haha Expert	CSHARP9.0.15	Error
Aug 25, 2026 04:54	Haha Expert	CSHARP10.0.11	Error
Aug 25, 2026 04:16	Haha Expert	CSHARP10.0.11	Success	113,100
Aug 24, 2026 23:26	Victor Mercklé	CPPg++14.2.0	Success	5,920
Aug 24, 2026 23:19	Victor Mercklé	CPPg++14.2.0	Error
Aug 24, 2026 23:15	Victor Mercklé	CPPg++14.2.0	Error
Aug 24, 2026 23:05	Victor Mercklé	CPPg++14.2.0	Success	4,424
Aug 24, 2026 22:46	Victor Mercklé	CPPg++14.2.0	Success	8,830
Aug 24, 2026 18:38	Victor Mercklé	CPPg++14.2.0	Error	+305.21 RP
Aug 24, 2026 18:35	Victor Mercklé	CPPg++14.2.0	Success	3,364
Aug 24, 2026 18:32	Victor Mercklé	CPPg++14.2.0	Success	3,292
Aug 24, 2026 18:29	Victor Mercklé	CPPg++14.2.0	Success	3,368
Aug 24, 2026 18:23	Victor Mercklé	CPPg++14.2.0	Success	3,782
Aug 24, 2026 18:17	Victor Mercklé	CPPg++14.2.0	Success	3,268
Aug 24, 2026 18:06	Victor Mercklé	CPPg++14.2.0	Success	4,567
Aug 24, 2026 18:04	Victor Mercklé	CPPg++14.2.0	Success	3,195
Aug 24, 2026 18:00	Victor Mercklé	CPPg++14.2.0	Success	3,370
Aug 24, 2026 17:58	Victor Mercklé	CPPg++14.2.0	Success	3,417
Aug 24, 2026 17:40	Victor Mercklé	CPPg++14.2.0	Success	3,260
Aug 24, 2026 17:36	Victor Mercklé	CPPg++14.2.0	Success	3,220
Aug 24, 2026 17:33	Victor Mercklé	CPPg++14.2.0	Success	3,247
Aug 24, 2026 17:31	Victor Mercklé	CPPg++14.2.0	Success	3,206
Aug 24, 2026 17:25	Victor Mercklé	CPPg++14.2.0	Success	3,270
Aug 24, 2026 17:21	Andrew Epstein	CPPg++14.2.0	Success	16,469+123.64 RP
Aug 24, 2026 17:14	Victor Mercklé	CPPg++14.2.0	Success	3,280
Aug 24, 2026 17:06	Andrew Epstein	CPPg++14.2.0	Success	20,680+63.80 RP
Aug 24, 2026 16:51	Andrew Epstein	CPPg++14.2.0	Success	23,823+289.52 RP
Aug 24, 2026 16:38	Victor Mercklé	CPPg++14.2.0	Success	3,189
Aug 24, 2026 16:36	Victor Mercklé	CPPg++14.2.0	Success	3,205
Aug 24, 2026 16:33	Victor Mercklé	CPPg++14.2.0	Success	3,178
Aug 24, 2026 16:29	Victor Mercklé	CPPg++14.2.0	Success	3,237
Aug 24, 2026 16:27	Victor Mercklé	CPPg++14.2.0	Success	3,178+1.98 RP
Aug 24, 2026 16:24	Victor Mercklé	CPPg++14.2.0	Success	3,259
Aug 24, 2026 16:16	Victor Mercklé	CPPg++14.2.0	Success	3,318
Aug 24, 2026 16:10	Victor Mercklé	CPPg++14.2.0	Error
Aug 23, 2026 22:18	Andrew Epstein	CPPg++14.2.0	Success	76,781+72.81 RP
Aug 23, 2026 20:00	Victor Mercklé	CPPg++14.2.0	Success	3,375
Aug 23, 2026 19:57	Victor Mercklé	CPPg++14.2.0	Success	4,558
Aug 23, 2026 19:55	Victor Mercklé	CPPg++14.2.0	Success	3,240
Aug 23, 2026 19:50	Victor Mercklé	CPPg++14.2.0	Success	3,547
Aug 23, 2026 19:45	Victor Mercklé	CPPg++14.2.0	Success	4,934
Aug 23, 2026 19:43	Victor Mercklé	CPPg++14.2.0	Success	10,450
Aug 23, 2026 19:33	Victor Mercklé	CPPg++14.2.0	Success	4,954
Aug 23, 2026 19:16	Victor Mercklé	CPPg++14.2.0	Success	3,345
Aug 23, 2026 19:08	Victor Mercklé	CPPg++14.2.0	Success	3,229
Aug 23, 2026 19:05	Victor Mercklé	CPPg++14.2.0	Success	7,915
Aug 23, 2026 18:49	Victor Mercklé	CPPg++14.2.0	Success	3,272
Aug 23, 2026 18:39	Victor Mercklé	CPPg++14.2.0	Success	3,731
Aug 23, 2026 18:36	Victor Mercklé	CPPg++14.2.0	Success	3,573
Aug 23, 2026 18:27	Victor Mercklé	CPPg++14.2.0	Success	3,282
Aug 23, 2026 18:24	Victor Mercklé	CPPg++14.2.0	Success	3,222
Aug 23, 2026 18:18	Victor Mercklé	CPPg++14.2.0	Success	3,206
Aug 23, 2026 18:12	Victor Mercklé	CPPg++14.2.0	Error
Aug 23, 2026 17:55	Victor Mercklé	CPPg++14.2.0	Success	3,295
Aug 23, 2026 17:46	Victor Mercklé	CPPg++14.2.0	Success	3,212
Aug 23, 2026 17:39	Victor Mercklé	CPPg++14.2.0	Success	3,217
Aug 23, 2026 17:35	Victor Mercklé	CPPg++14.2.0	Success	6,694
Aug 23, 2026 17:26	Victor Mercklé	CPPg++14.2.0	Success	3,276
Aug 23, 2026 17:17	Victor Mercklé	CPPg++14.2.0	Success	3,180+6.91 RP
Aug 23, 2026 17:06	Victor Mercklé	CPPg++14.2.0	Success	3,187+36.01 RP
Aug 23, 2026 17:04	Victor Mercklé	CPPg++14.2.0	Error
Aug 23, 2026 16:59	Victor Mercklé	CPPg++14.2.0	Success	3,258
Aug 23, 2026 16:46	Victor Mercklé	CPPg++14.2.0	Success	3,244
Aug 23, 2026 16:41	Victor Mercklé	CPPg++14.2.0	Success	3,404
Aug 23, 2026 16:37	Victor Mercklé	CPPg++14.2.0	Success	3,267
Aug 23, 2026 16:33	Victor Mercklé	CPPg++14.2.0	Success	3,246
Aug 23, 2026 16:30	Victor Mercklé	CPPg++14.2.0	Success	3,304
Aug 23, 2026 16:20	Victor Mercklé	CPPg++14.2.0	Success	3,508
Aug 23, 2026 16:17	Victor Mercklé	CPPg++14.2.0	Success	3,269
Aug 23, 2026 15:36	Victor Mercklé	CPPg++14.2.0	Success	4,365

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