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 19, 2026 13:09	Andrew Epstein	CPPg++14.2.0	Success	5,704+4.90 RP
Sep 19, 2026 13:05	Andrew Epstein	CPPclang++20.1.2	Success	5,859
Sep 19, 2026 13:04	Andrew Epstein	CPPg++14.2.0	Success	52,058
Sep 19, 2026 13:03	Andrew Epstein	CPPg++14.2.0	Success	5,720+337.22 RP
Sep 19, 2026 12:58	Andrew Epstein	CPPg++14.2.0	Success	53,709
Sep 19, 2026 12:57	Andrew Epstein	CPPclang++20.1.2	Success	7,151
Sep 19, 2026 12:57	Andrew Epstein	CPPg++14.2.0	Success	7,087+19.05 RP
Sep 19, 2026 12:53	Andrew Epstein	CPPg++14.2.0	Success	60,467
Sep 18, 2026 19:32	Andrew Epstein	CPPg++14.2.0	Success	71,501
Sep 18, 2026 19:30	Andrew Epstein	CPPclang++20.1.2	Success	7,184+13.43 RP
Sep 18, 2026 19:28	Andrew Epstein	CPPg++14.2.0	Success	71,555
Sep 18, 2026 19:27	Andrew Epstein	CPPg++14.2.0	Success	7,254+771.35 RP
Sep 18, 2026 19:24	Andrew Epstein	CPPg++14.2.0	Success	64,768
Sep 18, 2026 19:21	Andrew Epstein	CPPg++14.2.0	Success	64,028
Sep 18, 2026 19:12	Andrew Epstein	CPPg++14.2.0	Success	68,421
Sep 18, 2026 19:01	Andrew Epstein	CPPg++14.2.0	Success	68,671
Sep 18, 2026 18:58	Andrew Epstein	CPPg++14.2.0	Success	68,131
Sep 18, 2026 18:53	Andrew Epstein	CPPg++14.2.0	Success	141,431
Sep 18, 2026 18:49	Andrew Epstein	CPPg++14.2.0	Success	73,475
Sep 18, 2026 18:48	Andrew Epstein	CPPg++14.2.0	Success	72,924
Sep 18, 2026 18:39	Andrew Epstein	CPPg++14.2.0	Success	82,156
Sep 18, 2026 18:26	Andrew Epstein	CPPg++14.2.0	Success	64,833
Sep 18, 2026 18:22	Andrew Epstein	CPPg++14.2.0	Success	66,454
Sep 18, 2026 18:17	Andrew Epstein	CPPg++14.2.0	Success	64,155
Sep 18, 2026 18:15	Andrew Epstein	CPPg++14.2.0	Success	74,141
Sep 18, 2026 18:01	Andrew Epstein	CPPg++14.2.0	Success	88,201
Sep 18, 2026 17:57	Andrew Epstein	CPPg++14.2.0	Success	72,543
Sep 18, 2026 17:54	Andrew Epstein	CPPg++14.2.0	Success	71,745
Sep 18, 2026 17:52	Andrew Epstein	CPPg++14.2.0	Success	24,636
Sep 18, 2026 17:48	Andrew Epstein	CPPg++14.2.0	Success	85,468
Sep 18, 2026 17:42	Andrew Epstein	CPPg++14.2.0	Success	93,917
Sep 18, 2026 17:40	Andrew Epstein	CPPg++14.2.0	Success	73,135
Sep 18, 2026 17:26	Andrew Epstein	CPPg++14.2.0	Success	536,833
Sep 18, 2026 17:19	Andrew Epstein	CPPg++14.2.0	Success	506,108
Sep 18, 2026 16:57	Andrew Epstein	CPPg++14.2.0	Success	283,703
Sep 18, 2026 16:49	Andrew Epstein	CPPg++14.2.0	Success	282,466
Sep 16, 2026 00:28	Josu San Martin	CPPg++14.2.0	Success	3,604
Sep 15, 2026 22:26	Josu San Martin	CPPg++14.2.0	Success	3,369
Sep 15, 2026 22:22	Josu San Martin	CPPg++14.2.0	Success	4,041
Sep 15, 2026 03:49	Josu San Martin	CPPg++14.2.0	Success	3,389
Sep 14, 2026 09:04	Haha Expert	CPPg++14.2.0	Success	47,127+3.85 RP
Sep 11, 2026 11:52	Haha Expert	CPPg++10.5.0	Success	48,799
Sep 11, 2026 11:41	Haha Expert	CPPg++10.5.0	Success	50,000
Sep 11, 2026 11:32	Haha Expert	CPPg++10.5.0	Success	47,999+58.87 RP
Sep 11, 2026 11:24	Haha Expert	CPPg++10.5.0	Success	68,045
Sep 11, 2026 11:21	Haha Expert	CPPg++10.5.0	Success	66,906+0.65 RP
Sep 11, 2026 11:12	Haha Expert	CPPg++10.5.0	Success	69,202
Sep 11, 2026 10:56	Haha Expert	CPPg++10.5.0	Success	67,198+5.43 RP
Sep 11, 2026 10:51	Haha Expert	CPPg++10.5.0	Success	69,745+2.28 RP
Sep 11, 2026 10:37	Haha Expert	CPPg++10.5.0	Success	70,870+10.33 RP
Sep 11, 2026 10:35	Haha Expert	CPPclang++20.1.2	Success	76,699
Sep 11, 2026 10:31	Haha Expert	CPPclang++20.1.2	Success	76,469+15.46 RP
Sep 10, 2026 16:24	m-0451	CPPclang++20.1.2	Success	48,391
Sep 10, 2026 16:14	m-0451	CPPclang++20.1.2	Success	48,368+1.24 RP
Sep 10, 2026 16:08	m-0451	CPPclang++20.1.2	Success	48,734
Sep 10, 2026 16:07	m-0451	CPPclang++20.1.2	Success	48,661+0.58 RP
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

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