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 23, 2025 07:27	Rajarshi Basu	CPPg++13.3.0	Error
Dec 23, 2025 07:27	Rajarshi Basu	CPPg++13.3.0	Error
Dec 23, 2025 07:27	Rajarshi Basu	CPPg++13.3.0	Error
Dec 23, 2025 07:27	Rajarshi Basu	CPPg++13.3.0	Error
Dec 23, 2025 07:21	Rajarshi Basu	CPPg++13.3.0	Error
Dec 23, 2025 07:12	Rajarshi Basu	CPPg++13.3.0	Error
Dec 23, 2025 07:06	Rajarshi Basu	CPPg++13.3.0	Error
Dec 23, 2025 07:01	Rajarshi Basu	CPPg++13.3.0	Error
Dec 23, 2025 05:13	Josu San Martin	RUSTrust-1.92.0	Success	42,725
Dec 23, 2025 04:53	Josu San Martin	RUSTrust-1.92.0	Success	42,659
Dec 23, 2025 04:46	Josu San Martin	RUSTrust-1.92.0	Success	44,607
Dec 23, 2025 04:31	Josu San Martin	RUSTrust-1.92.0	Success	55,627
Dec 23, 2025 04:31	Josu San Martin	RUSTrust-1.92.0	Success	50,476
Dec 23, 2025 03:05	Joad Nacer	CPPclang++18.1.3	Error
Dec 23, 2025 03:02	Joad Nacer	CPPclang++18.1.3	Success	4,654
Dec 23, 2025 03:01	Joad Nacer	CPPclang++18.1.3	Success	4,550
Dec 23, 2025 03:00	Joad Nacer	CPPclang++18.1.3	Success	4,572
Dec 22, 2025 22:41	zielaj	CPPclang++18.1.3	Success	4,277
Dec 22, 2025 22:35	zielaj	CPPclang++18.1.3	Success	4,284
Dec 22, 2025 22:34	zielaj	CPPclang++18.1.3	Success	4,272
Dec 22, 2025 22:32	zielaj	CPPclang++18.1.3	Success	4,293
Dec 22, 2025 22:30	zielaj	CPPclang++18.1.3	Success	4,265
Dec 22, 2025 22:25	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 22:24	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 22:22	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 22:21	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 22:19	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 21:56	zielaj	CPPclang++18.1.3	Success	4,262+10.41 RP
Dec 22, 2025 21:55	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 21:53	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 21:48	zielaj	CPPclang++18.1.3	Success	4,281+77.04 RP
Dec 22, 2025 21:47	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 21:44	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 21:43	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 21:41	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 21:29	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 21:28	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 21:26	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 21:25	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 21:19	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 21:17	Zhalgas Khassenov	GOgo1.25.5	Success	148,273+67.44 RP
Dec 22, 2025 20:53	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 20:44	zielaj	CPPclang++18.1.3	Success	4,430
Dec 22, 2025 20:41	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 20:39	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 20:35	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 20:33	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 20:32	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 20:30	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 20:29	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 20:24	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 20:23	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 20:20	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 20:17	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 20:16	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 20:14	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 20:12	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 20:10	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 20:08	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 20:04	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 19:59	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 19:45	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 19:41	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 19:39	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 19:38	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 19:35	zielaj	CPPclang++18.1.3	Success	4,427+62.03 RP
Dec 22, 2025 19:34	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 19:31	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 19:29	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 19:28	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 19:24	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 19:21	zielaj	CPPclang++18.1.3	Success	4,552+2.89 RP
Dec 22, 2025 19:20	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 19:18	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 19:17	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 19:13	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 19:12	zielaj	CPPclang++18.1.3	Success	4,558+63.57 RP
Dec 22, 2025 19:06	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 19:00	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 18:59	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 17:48	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 17:47	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 17:45	zielaj	CPPclang++18.1.3	Success	4,694+50.08 RP
Dec 22, 2025 17:43	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 17:37	zielaj	CPPclang++18.1.3	Success	4,807+171.17 RP
Dec 22, 2025 17:36	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 17:25	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 17:14	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 17:11	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 17:05	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 17:03	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 17:02	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 16:57	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 16:54	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 16:53	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 16:52	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 16:47	zielaj	CPPclang++18.1.3	Success	5,238+572.94 RP
Dec 22, 2025 16:45	zielaj	CPPclang++18.1.3	Success	8,328
Dec 22, 2025 16:43	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 16:34	zielaj	CPPclang++18.1.3	Error

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