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
Jan 3, 2026 05:06	Rajarshi Basu	CPPg++13.3.0	Error
Jan 3, 2026 05:04	Rajarshi Basu	CPPg++13.3.0	Error
Jan 3, 2026 05:02	Rajarshi Basu	CPPg++13.3.0	Error
Jan 3, 2026 05:01	Rajarshi Basu	CPPg++13.3.0	Error
Jan 3, 2026 04:56	Rajarshi Basu	CPPg++13.3.0	Error
Jan 3, 2026 04:49	Rajarshi Basu	CPPg++13.3.0	Error
Jan 3, 2026 04:49	Rajarshi Basu	CPPg++13.3.0	Error
Jan 3, 2026 04:48	Rajarshi Basu	CPPg++13.3.0	Error
Jan 3, 2026 04:36	Rajarshi Basu	CPPg++13.3.0	Error
Jan 3, 2026 04:35	Rajarshi Basu	CPPg++13.3.0	Error
Jan 3, 2026 04:32	Rajarshi Basu	CPPg++13.3.0	Error
Jan 3, 2026 04:30	Rajarshi Basu	CPPg++13.3.0	Error
Jan 3, 2026 04:28	Rajarshi Basu	CPPg++13.3.0	Error
Jan 3, 2026 04:23	Rajarshi Basu	CPPg++13.3.0	Error
Jan 3, 2026 04:22	Rajarshi Basu	CPPg++13.3.0	Error
Jan 3, 2026 04:19	Rajarshi Basu	CPPg++13.3.0	Error
Jan 3, 2026 04:14	Rajarshi Basu	CPPg++13.3.0	Error
Jan 3, 2026 04:12	Rajarshi Basu	CPPg++13.3.0	Error
Jan 3, 2026 04:08	Rajarshi Basu	CPPg++13.3.0	Error
Jan 3, 2026 04:06	Rajarshi Basu	CPPg++13.3.0	Error
Jan 3, 2026 04:04	Rajarshi Basu	CPPg++13.3.0	Error
Jan 3, 2026 04:03	Rajarshi Basu	CPPg++13.3.0	Error
Jan 3, 2026 03:57	Rajarshi Basu	CPPg++13.3.0	Error
Jan 3, 2026 03:55	Rajarshi Basu	CPPg++13.3.0	Error
Jan 3, 2026 03:54	Rajarshi Basu	CPPg++13.3.0	Error
Jan 3, 2026 03:53	Rajarshi Basu	CPPg++13.3.0	Error
Jan 3, 2026 03:53	Rajarshi Basu	CPPg++13.3.0	Error
Jan 3, 2026 03:51	Rajarshi Basu	CPPg++13.3.0	Error
Jan 3, 2026 03:51	Rajarshi Basu	CPPg++13.3.0	Error
Jan 3, 2026 03:49	Rajarshi Basu	CPPg++13.3.0	Error
Jan 3, 2026 03:49	Rajarshi Basu	CPPg++13.3.0	Error
Jan 3, 2026 03:48	Rajarshi Basu	CPPg++13.3.0	Error
Jan 3, 2026 03:47	Rajarshi Basu	CPPg++13.3.0	Error
Jan 3, 2026 03:45	Rajarshi Basu	CPPg++13.3.0	Error
Jan 3, 2026 03:45	Josu San Martin	RUSTrust-1.92.0	Error
Jan 3, 2026 03:43	Rajarshi Basu	CPPg++13.3.0	Error
Jan 3, 2026 03:10	Josu San Martin	RUSTrust-1.92.0	Error
Jan 3, 2026 03:09	Josu San Martin	RUSTrust-1.92.0	Success	30,556
Jan 3, 2026 03:07	Josu San Martin	RUSTrust-1.92.0	Success	28,056
Jan 2, 2026 23:27	zielaj	CPPclang++18.1.3	Error
Jan 2, 2026 23:06	zielaj	CPPclang++18.1.3	Error
Jan 2, 2026 23:02	zielaj	CPPclang++18.1.3	Error
Jan 2, 2026 22:58	zielaj	CPPclang++18.1.3	Error
Jan 2, 2026 22:57	zielaj	CPPclang++18.1.3	Error	+20.49 RP
Jan 2, 2026 21:23	zielaj	CPPclang++18.1.3	Error	+58.02 RP
Jan 2, 2026 21:18	zielaj	CPPclang++18.1.3	Error
Jan 2, 2026 21:15	zielaj	CPPclang++18.1.3	Error
Jan 2, 2026 21:14	zielaj	CPPclang++18.1.3	Error
Jan 2, 2026 21:13	zielaj	CPPclang++18.1.3	Error
Jan 2, 2026 21:11	zielaj	CPPclang++18.1.3	Error
Jan 2, 2026 21:10	zielaj	CPPclang++18.1.3	Success	6,569
Jan 2, 2026 21:05	zielaj	CPPclang++18.1.3	Error
Jan 2, 2026 20:46	zielaj	CPPclang++18.1.3	Error
Jan 2, 2026 20:43	zielaj	CPPclang++18.1.3	Error
Jan 2, 2026 20:39	zielaj	CPPclang++18.1.3	Error
Jan 2, 2026 20:19	zielaj	CPPclang++18.1.3	Error
Jan 2, 2026 20:16	zielaj	CPPclang++18.1.3	Error
Jan 2, 2026 20:14	zielaj	CPPclang++18.1.3	Error
Jan 2, 2026 20:13	zielaj	CPPclang++18.1.3	Error
Jan 2, 2026 19:59	zielaj	CPPclang++18.1.3	Error
Jan 2, 2026 19:58	zielaj	CPPclang++18.1.3	Error
Jan 2, 2026 19:54	zielaj	CPPclang++18.1.3	Error
Jan 2, 2026 19:45	zielaj	CPPclang++18.1.3	Error
Jan 2, 2026 19:42	zielaj	CPPclang++18.1.3	Error
Jan 2, 2026 19:41	zielaj	CPPclang++18.1.3	Error
Jan 2, 2026 19:33	zielaj	CPPclang++18.1.3	Error
Jan 2, 2026 19:31	zielaj	CPPclang++18.1.3	Error
Jan 2, 2026 19:24	zielaj	CPPclang++18.1.3	Error	+21.32 RP
Jan 2, 2026 19:22	zielaj	CPPclang++18.1.3	Error
Jan 2, 2026 17:34	zielaj	CPPclang++18.1.3	Error	+57.79 RP
Jan 2, 2026 17:10	zielaj	CPPclang++18.1.3	Error
Jan 2, 2026 17:09	zielaj	CPPclang++18.1.3	Error
Jan 2, 2026 17:08	zielaj	CPPclang++18.1.3	Error	+1.77 RP
Jan 2, 2026 17:02	zielaj	CPPclang++18.1.3	Error
Jan 2, 2026 16:55	zielaj	CPPclang++18.1.3	Error
Jan 2, 2026 16:48	zielaj	CPPclang++18.1.3	Error
Jan 2, 2026 16:47	zielaj	CPPclang++18.1.3	Error
Jan 2, 2026 15:22	Josu San Martin	RUSTrust-1.92.0	Success	25,278
Jan 2, 2026 12:48	Rajarshi Basu	CPPg++13.3.0	Error
Jan 2, 2026 12:46	Rajarshi Basu	CPPg++13.3.0	Error
Jan 2, 2026 12:44	Rajarshi Basu	CPPg++13.3.0	Error	+11.71 RP
Jan 2, 2026 12:39	Rajarshi Basu	CPPg++13.3.0	Error
Jan 2, 2026 12:39	Rajarshi Basu	CPPg++13.3.0	Error	+32.84 RP
Jan 2, 2026 12:37	Rajarshi Basu	CPPg++13.3.0	Error
Jan 2, 2026 12:31	Rajarshi Basu	CPPg++13.3.0	Error
Jan 2, 2026 12:29	Rajarshi Basu	CPPg++13.3.0	Error
Jan 2, 2026 12:28	Rajarshi Basu	CPPg++13.3.0	Error
Jan 2, 2026 12:27	Rajarshi Basu	CPPg++13.3.0	Error
Jan 2, 2026 12:26	Rajarshi Basu	CPPg++13.3.0	Error
Jan 2, 2026 12:25	Rajarshi Basu	CPPg++13.3.0	Error	+38.99 RP
Jan 2, 2026 12:24	Rajarshi Basu	CPPg++13.3.0	Error
Jan 2, 2026 12:22	Rajarshi Basu	CPPg++13.3.0	Error
Jan 2, 2026 12:19	Rajarshi Basu	CPPg++13.3.0	Success	4,948
Jan 2, 2026 12:16	Rajarshi Basu	CPPg++13.3.0	Error
Jan 2, 2026 12:12	zielaj	CPPclang++18.1.3	Error	+54.71 RP
Jan 2, 2026 12:12	Rajarshi Basu	CPPg++13.3.0	Error
Jan 2, 2026 12:09	Rajarshi Basu	CPPg++13.3.0	Error
Jan 2, 2026 12:09	Rajarshi Basu	CPPg++13.3.0	Error
Jan 2, 2026 12:08	zielaj	CPPclang++18.1.3	Error
Jan 2, 2026 12:08	Rajarshi Basu	CPPg++13.3.0	Error

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