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 20, 2025 08:21	Rajarshi Basu	CPPg++13.3.0	Error
Dec 20, 2025 08:20	Rajarshi Basu	CPPg++13.3.0	Success	5,415
Dec 20, 2025 08:20	Rajarshi Basu	CPPg++13.3.0	Success	5,352
Dec 20, 2025 08:18	Rajarshi Basu	CPPg++13.3.0	Error
Dec 20, 2025 08:17	Rajarshi Basu	CPPclang++18.1.3	Success	5,293+4.63 RP
Dec 20, 2025 07:53	Rajarshi Basu	CPPg++13.3.0	Error
Dec 20, 2025 07:52	Rajarshi Basu	CPPg++13.3.0	Success	5,614
Dec 20, 2025 07:52	Rajarshi Basu	CPPg++13.3.0	Success	5,822
Dec 20, 2025 07:07	Rajarshi Basu	CPPg++13.3.0	Success	5,366
Dec 20, 2025 07:07	Rajarshi Basu	CPPclang++18.1.3	Success	5,306+3.90 RP
Dec 20, 2025 07:06	Rajarshi Basu	CPPclang++18.1.3	Error
Dec 20, 2025 07:06	Rajarshi Basu	CPPclang++18.1.3	Error
Dec 20, 2025 07:04	Rajarshi Basu	CPPclang++18.1.3	Success	5,444
Dec 20, 2025 07:03	Rajarshi Basu	CPPclang++18.1.3	Success	5,346
Dec 20, 2025 07:01	Rajarshi Basu	CPPclang++18.1.3	Success	5,371
Dec 20, 2025 06:59	Rajarshi Basu	CPPclang++18.1.3	Success	5,376
Dec 20, 2025 06:58	Rajarshi Basu	CPPclang++18.1.3	Error
Dec 20, 2025 06:57	Rajarshi Basu	CPPclang++18.1.3	Error
Dec 20, 2025 06:57	Rajarshi Basu	CPPclang++18.1.3	Success	5,317+49.93 RP
Dec 20, 2025 06:56	Rajarshi Basu	CPPclang++18.1.3	Error
Dec 20, 2025 06:50	Rajarshi Basu	CPPclang++18.1.3	Error
Dec 20, 2025 06:29	Rajarshi Basu	CPPclang++18.1.3	Error
Dec 20, 2025 06:27	Rajarshi Basu	CPPclang++18.1.3	Error
Dec 20, 2025 06:25	Rajarshi Basu	CPPclang++18.1.3	Error
Dec 20, 2025 06:22	Rajarshi Basu	CPPclang++18.1.3	Error
Dec 20, 2025 06:20	Rajarshi Basu	CPPclang++18.1.3	Error
Dec 20, 2025 06:17	Rajarshi Basu	CPPclang++18.1.3	Error
Dec 20, 2025 06:16	Rajarshi Basu	CPPclang++18.1.3	Error
Dec 20, 2025 06:14	Rajarshi Basu	CPPclang++18.1.3	Error
Dec 20, 2025 06:08	Rajarshi Basu	CPPclang++18.1.3	Error
Dec 20, 2025 06:05	Rajarshi Basu	CPPclang++18.1.3	Success	5,462+6.35 RP
Dec 20, 2025 06:02	Rajarshi Basu	CPPclang++18.1.3	Error
Dec 20, 2025 06:00	Rajarshi Basu	CPPclang++18.1.3	Success	5,670
Dec 20, 2025 05:52	Rajarshi Basu	CPPclang++18.1.3	Success	5,505
Dec 20, 2025 05:45	Rajarshi Basu	CPPclang++18.1.3	Error
Dec 20, 2025 05:42	Rajarshi Basu	CPPclang++18.1.3	Success	5,494
Dec 20, 2025 05:41	Rajarshi Basu	CPPclang++18.1.3	Success	5,597
Dec 20, 2025 05:41	Rajarshi Basu	CPPclang++18.1.3	Success	5,550
Dec 20, 2025 05:41	Rajarshi Basu	CPPclang++18.1.3	Success	5,806
Dec 20, 2025 05:36	Rajarshi Basu	CPPclang++18.1.3	Success	5,503
Dec 20, 2025 05:36	Rajarshi Basu	CPPclang++18.1.3	Error
Dec 20, 2025 05:36	Rajarshi Basu	CPPclang++18.1.3	Success	5,487
Dec 20, 2025 05:35	Rajarshi Basu	CPPclang++18.1.3	Success	5,602
Dec 20, 2025 05:30	Rajarshi Basu	CPPclang++18.1.3	Success	5,519
Dec 20, 2025 05:29	Rajarshi Basu	CPPclang++18.1.3	Success	5,481+2.33 RP
Dec 20, 2025 05:29	Rajarshi Basu	CPPclang++18.1.3	Success	5,569
Dec 20, 2025 05:29	Rajarshi Basu	CPPclang++18.1.3	Success	5,523
Dec 20, 2025 05:29	Rajarshi Basu	CPPclang++18.1.3	Success	5,548
Dec 20, 2025 05:28	Rajarshi Basu	CPPclang++18.1.3	Success	5,557
Dec 20, 2025 05:28	Rajarshi Basu	CPPclang++18.1.3	Success	5,503
Dec 20, 2025 05:27	Rajarshi Basu	CPPclang++18.1.3	Success	5,551
Dec 20, 2025 05:19	Rajarshi Basu	CPPclang++18.1.3	Success	5,488+1.99 RP
Dec 20, 2025 05:07	Rajarshi Basu	CPPclang++18.1.3	Success	5,538
Dec 20, 2025 05:07	Rajarshi Basu	CPPclang++18.1.3	Success	5,547
Dec 20, 2025 05:06	Rajarshi Basu	CPPclang++18.1.3	Success	5,504
Dec 20, 2025 05:06	Rajarshi Basu	CPPclang++18.1.3	Success	5,494+19.01 RP
Dec 20, 2025 05:04	Rajarshi Basu	CPPclang++18.1.3	Success	5,552+57.47 RP
Dec 20, 2025 04:33	Rajarshi Basu	CPPclang++18.1.3	Success	5,735+7.87 RP
Dec 20, 2025 04:33	Rajarshi Basu	CPPg++13.3.0	Success	5,812
Dec 20, 2025 04:28	Rajarshi Basu	CPPg++13.3.0	Error
Dec 20, 2025 04:28	Rajarshi Basu	CPPg++13.3.0	Success	5,943
Dec 20, 2025 04:28	Rajarshi Basu	CPPg++13.3.0	Success	5,984
Dec 20, 2025 04:27	Rajarshi Basu	CPPg++13.3.0	Success	6,042
Dec 20, 2025 04:27	Rajarshi Basu	CPPg++13.3.0	Success	5,858
Dec 20, 2025 04:27	Rajarshi Basu	CPPg++13.3.0	Success	5,782
Dec 20, 2025 04:26	Rajarshi Basu	CPPclang++18.1.3	Success	5,764
Dec 20, 2025 04:26	Rajarshi Basu	CPPclang++18.1.3	Success	5,971
Dec 20, 2025 04:26	Rajarshi Basu	CPPclang++18.1.3	Success	5,774
Dec 20, 2025 04:26	Rajarshi Basu	CPPclang++18.1.3	Success	5,761+25.24 RP
Dec 20, 2025 04:24	Rajarshi Basu	CPPclang++18.1.3	Success	6,376
Dec 20, 2025 04:21	Rajarshi Basu	CPPclang++18.1.3	Error
Dec 20, 2025 04:20	Rajarshi Basu	CPPg++13.3.0	Success	5,846+7.86 RP
Dec 19, 2025 20:09	Rajarshi Basu	CPPg++13.3.0	Success	5,873+3.76 RP
Dec 19, 2025 20:08	Rajarshi Basu	CPPg++13.3.0	Success	8,913
Dec 19, 2025 20:07	Rajarshi Basu	CPPg++13.3.0	Success	7,805
Dec 19, 2025 20:05	Rajarshi Basu	CPPg++13.3.0	Success	6,218
Dec 19, 2025 20:03	Rajarshi Basu	CPPg++13.3.0	Success	5,901
Dec 19, 2025 19:58	Rajarshi Basu	CPPg++13.3.0	Success	7,161
Dec 19, 2025 19:58	Rajarshi Basu	CPPg++13.3.0	Success	7,202
Dec 19, 2025 19:57	Rajarshi Basu	CPPg++13.3.0	Success	8,236
Dec 19, 2025 19:57	Rajarshi Basu	CPPg++13.3.0	Success	14,920
Dec 19, 2025 19:57	Rajarshi Basu	CPPg++13.3.0	Success	7,358
Dec 19, 2025 19:56	Rajarshi Basu	CPPg++13.3.0	Error
Dec 19, 2025 19:56	Rajarshi Basu	CPPg++13.3.0	Success	7,268
Dec 19, 2025 19:56	Rajarshi Basu	CPPg++13.3.0	Success	6,889
Dec 19, 2025 19:53	Rajarshi Basu	CPPg++13.3.0	Success	6,828
Dec 19, 2025 19:52	Rajarshi Basu	CPPg++13.3.0	Success	6,026
Dec 19, 2025 19:51	Rajarshi Basu	CPPg++13.3.0	Success	6,057
Dec 19, 2025 19:46	Rajarshi Basu	CPPg++13.3.0	Success	5,886+6.33 RP
Dec 19, 2025 19:37	Josu San Martin	RUSTrust-1.92.0	Success	59,328+7.76 RP
Dec 19, 2025 19:36	Josu San Martin	RUSTrust-1.92.0	Success	62,193+10.91 RP
Dec 19, 2025 19:36	Rajarshi Basu	CPPg++13.3.0	Error
Dec 19, 2025 19:28	Rajarshi Basu	CPPg++13.3.0	Success	10,707
Dec 19, 2025 19:27	Rajarshi Basu	CPPg++13.3.0	Success	10,627
Dec 19, 2025 19:26	Rajarshi Basu	CPPg++13.3.0	Success	10,663
Dec 19, 2025 19:22	Rajarshi Basu	CPPg++13.3.0	Success	5,949
Dec 19, 2025 19:20	Josu San Martin	RUSTrust-1.92.0	Success	75,701
Dec 19, 2025 19:10	Josu San Martin	CPPg++13.3.0	Success	66,721+149.88 RP
Dec 19, 2025 19:05	Rajarshi Basu	CPPg++13.3.0	Success	5,908+23.17 RP
Dec 19, 2025 19:01	Rajarshi Basu	CPPg++13.3.0	Success	5,995

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