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
Dec 17, 2025 17:05	Rajarshi Basu	CPPg++13.3.0	Error
Dec 17, 2025 17:05	Rajarshi Basu	CPP	Error
Dec 17, 2025 16:55	Rajarshi Basu	CPPg++13.3.0	Error
Dec 17, 2025 16:52	Rajarshi Basu	CPPg++13.3.0	Error
Dec 17, 2025 13:45	Rajarshi Basu	CPPg++13.3.0	Error
Dec 17, 2025 12:13	Rajarshi Basu	CPPg++13.3.0	Error
Dec 17, 2025 12:11	Rajarshi Basu	CPPg++13.3.0	Error
Dec 17, 2025 12:03	Rajarshi Basu	CPPg++13.3.0	Error
Dec 17, 2025 12:02	Rajarshi Basu	CPPg++13.3.0	Error
Dec 17, 2025 12:02	Rajarshi Basu	CPPg++13.3.0	Error
Dec 17, 2025 12:02	Rajarshi Basu	CPPg++13.3.0	Error
Dec 17, 2025 12:02	Rajarshi Basu	CPPg++13.3.0	Error
Dec 17, 2025 12:02	Rajarshi Basu	CPPg++13.3.0	Error
Dec 17, 2025 12:01	Rajarshi Basu	CPPg++13.3.0	Error
Dec 17, 2025 12:00	Rajarshi Basu	CPPg++13.3.0	Error
Dec 17, 2025 11:59	Rajarshi Basu	CPPg++13.3.0	Error
Dec 17, 2025 11:58	Rajarshi Basu	CPPg++13.3.0	Error
Dec 17, 2025 11:56	Rajarshi Basu	CPPg++13.3.0	Error
Dec 17, 2025 11:55	Rajarshi Basu	CPPg++13.3.0	Error
Dec 17, 2025 11:54	Rajarshi Basu	CPPg++13.3.0	Error
Dec 16, 2025 14:18	Rajarshi Basu	CPPg++13.3.0	Error
Dec 16, 2025 14:17	Rajarshi Basu	CPPg++13.3.0	Error
Dec 16, 2025 14:12	Rajarshi Basu	CPPg++13.3.0	Success	8,052
Dec 16, 2025 12:25	Andrei	CSHARP9.0.11	Success	92,248
Dec 16, 2025 11:45	Andrei	CSHARP9.0.11	Success	90,450
Dec 16, 2025 11:40	Andrei	CSHARP9.0.11	Success	91,528
Dec 16, 2025 11:35	Andrei	CSHARP9.0.11	Success	89,343+5.02 RP
Dec 16, 2025 11:33	Andrei	CSHARP9.0.11	Success	100,314
Dec 16, 2025 11:30	Andrei	CSHARP9.0.11	Success	98,027
Dec 16, 2025 11:17	Andrei	CSHARP9.0.11	Success	93,895
Dec 16, 2025 11:12	Andrei	CSHARP9.0.11	Success	101,471
Dec 16, 2025 11:10	Andrei	CSHARP9.0.11	Success	116,949
Dec 16, 2025 11:01	Andrei	CSHARP9.0.11	Success	180,757
Dec 16, 2025 10:57	Andrei	CSHARP9.0.11	Success	94,721
Dec 16, 2025 10:03	Andrei	CSHARP9.0.11	Error
Dec 16, 2025 09:38	Andrei	CSHARP9.0.11	Success	93,539+20.61 RP
Dec 16, 2025 09:03	Andrei	CSHARP9.0.11	Success	115,875+40.69 RP
Dec 16, 2025 08:48	Andrei	CSHARP9.0.11	Success	219,256+14.16 RP
Dec 15, 2025 16:13	Pavitra Golchha	RUSTrust-1.92.0	Success	68,715+22.26 RP
Dec 15, 2025 15:22	Pavitra Golchha	RUSTrust-1.92.0	Success	142,139
Dec 15, 2025 15:18	Pavitra Golchha	RUSTrust-1.92.0	Error
Dec 15, 2025 15:15	Pavitra Golchha	RUSTrust-1.92.0	Error
Dec 15, 2025 14:57	Pavitra Golchha	RUSTrust-1.92.0	Success	199,297
Dec 15, 2025 14:49	Pavitra Golchha	RUSTrust-1.92.0	Success	81,126+80.87 RP
Dec 15, 2025 14:28	Pavitra Golchha	RUSTrust-1.92.0	Error
Dec 15, 2025 14:19	Pavitra Golchha	RUSTrust-1.92.0	Success	235,851+42.40 RP
Dec 15, 2025 14:18	Rajarshi Basu	CPPg++13.3.0	Error
Dec 15, 2025 14:13	Rajarshi Basu	CPPg++13.3.0	Error
Dec 15, 2025 14:13	Pavitra Golchha	RUSTrust-1.92.0	Error
Dec 15, 2025 14:10	Rajarshi Basu	CPPg++13.3.0	Error
Dec 15, 2025 14:03	Rajarshi Basu	CPPg++13.3.0	Error
Dec 15, 2025 13:54	Rajarshi Basu	CPPg++13.3.0	Error
Dec 15, 2025 13:49	Rajarshi Basu	CPPg++13.3.0	Error
Dec 15, 2025 13:35	Rajarshi Basu	CPPg++13.3.0	Error
Dec 15, 2025 13:29	Rajarshi Basu	CPPg++13.3.0	Error
Dec 15, 2025 13:27	Rajarshi Basu	CPPg++13.3.0	Success	13,550
Dec 15, 2025 13:23	Rajarshi Basu	CPPg++13.3.0	Success	14,785
Dec 15, 2025 13:20	Rajarshi Basu	CPPg++13.3.0	Error
Dec 15, 2025 11:14	Rajarshi Basu	CPPg++13.3.0	Error
Dec 15, 2025 11:12	Rajarshi Basu	CPPg++13.3.0	Error
Dec 15, 2025 11:11	Rajarshi Basu	CPPg++13.3.0	Error
Dec 15, 2025 11:11	Rajarshi Basu	CPPg++13.3.0	Error
Dec 15, 2025 11:11	Rajarshi Basu	CPPg++13.3.0	Error
Dec 15, 2025 11:10	Rajarshi Basu	CPPg++13.3.0	Error
Dec 14, 2025 14:16	Rajarshi Basu	CPPg++13.3.0	Success	8,348
Dec 14, 2025 14:15	Rajarshi Basu	CPPg++13.3.0	Error
Dec 14, 2025 14:15	Rajarshi Basu	CPPg++13.3.0	Error
Dec 14, 2025 14:11	Rajarshi Basu	CPPg++13.3.0	Error
Dec 14, 2025 14:10	Rajarshi Basu	CPPg++13.3.0	Error
Dec 14, 2025 14:07	Rajarshi Basu	CPPg++13.3.0	Error
Dec 14, 2025 14:06	Rajarshi Basu	CPPg++13.3.0	Error
Dec 14, 2025 14:05	Rajarshi Basu	CPPg++13.3.0	Success	8,150
Dec 14, 2025 14:03	Rajarshi Basu	CPPg++13.3.0	Success	8,118
Dec 14, 2025 14:03	Rajarshi Basu	CPPg++13.3.0	Success	8,204
Dec 14, 2025 14:03	Rajarshi Basu	CPPg++13.3.0	Success	8,207
Dec 14, 2025 14:03	Rajarshi Basu	CPPg++13.3.0	Error
Dec 14, 2025 14:02	Rajarshi Basu	CPPg++13.3.0	Success	8,352
Dec 14, 2025 14:02	Rajarshi Basu	CPPg++13.3.0	Success	8,751
Dec 14, 2025 14:02	Rajarshi Basu	CPPg++13.3.0	Success	9,090
Dec 14, 2025 14:01	Rajarshi Basu	CPPg++13.3.0	Success	9,339
Dec 14, 2025 13:36	Rajarshi Basu	CPPg++13.3.0	Success	8,041+1.08 RP
Dec 14, 2025 13:33	Rajarshi Basu	CPPg++13.3.0	Error
Dec 14, 2025 13:32	Rajarshi Basu	CPPg++13.3.0	Error
Dec 14, 2025 13:31	Rajarshi Basu	CPPg++13.3.0	Error
Dec 14, 2025 13:31	Rajarshi Basu	CPPg++13.3.0	Error
Dec 14, 2025 13:31	Rajarshi Basu	CPPg++13.3.0	Error
Dec 14, 2025 13:30	Rajarshi Basu	CPPg++13.3.0	Error
Dec 14, 2025 13:23	Rajarshi Basu	CPPg++13.3.0	Error
Dec 14, 2025 13:22	Rajarshi Basu	CPPg++13.3.0	Error
Dec 14, 2025 13:11	Rajarshi Basu	CPPg++13.3.0	Error
Dec 14, 2025 13:10	Rajarshi Basu	CPPg++13.3.0	Error
Dec 14, 2025 13:09	Rajarshi Basu	CPPg++13.3.0	Error
Dec 14, 2025 09:39	Rajarshi Basu	CPPg++13.3.0	Error
Dec 14, 2025 09:30	Rajarshi Basu	CPPg++13.3.0	Error
Dec 14, 2025 09:29	Rajarshi Basu	CPPg++13.3.0	Error
Dec 14, 2025 09:29	Rajarshi Basu	CPPg++13.3.0	Error
Dec 14, 2025 09:28	Rajarshi Basu	CPPg++13.3.0	Error
Dec 14, 2025 09:28	Rajarshi Basu	CPPg++13.3.0	Error
Dec 14, 2025 09:28	Rajarshi Basu	CPPg++13.3.0	Error
Dec 14, 2025 09:28	Rajarshi Basu	CPPg++13.3.0	Error

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