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 21, 2025 18:45	zielaj	CPPclang++18.1.3	Error
Dec 21, 2025 18:41	zielaj	CPPclang++18.1.3	Error
Dec 21, 2025 18:40	zielaj	CPPclang++18.1.3	Error
Dec 21, 2025 18:36	zielaj	CPPclang++18.1.3	Error
Dec 21, 2025 18:32	zielaj	CPPclang++18.1.3	Error
Dec 21, 2025 18:27	zielaj	CPPclang++18.1.3	Error
Dec 21, 2025 18:25	zielaj	CPPclang++18.1.3	Error
Dec 21, 2025 18:24	zielaj	CPPclang++18.1.3	Error
Dec 21, 2025 17:47	zielaj	CPPclang++18.1.3	Error
Dec 21, 2025 17:45	zielaj	CPPclang++18.1.3	Error
Dec 21, 2025 17:39	zielaj	CPPclang++18.1.3	Error
Dec 21, 2025 13:37	xffox	CPPg++13.3.0	Error
Dec 21, 2025 13:33	xffox	CPPg++13.3.0	Error
Dec 21, 2025 13:31	xffox	CPPg++13.3.0	Error
Dec 21, 2025 12:57	xffox	CPPg++13.3.0	Error
Dec 21, 2025 12:54	xffox	CPPg++13.3.0	Error
Dec 21, 2025 12:53	xffox	CPPg++13.3.0	Error
Dec 21, 2025 12:34	xffox	CPPg++13.3.0	Error
Dec 21, 2025 12:31	xffox	CPPg++13.3.0	Error
Dec 21, 2025 12:06	xffox	CPPg++13.3.0	Error
Dec 21, 2025 11:43	Rajarshi Basu	CPPg++13.3.0	Success	5,081
Dec 21, 2025 11:38	Rajarshi Basu	CPPg++13.3.0	Success	5,068
Dec 21, 2025 06:11	Rajarshi Basu	CPPg++13.3.0	Success	237,872
Dec 21, 2025 06:08	Rajarshi Basu	CPPg++13.3.0	Success	6,545
Dec 21, 2025 05:56	Rajarshi Basu	CPPg++13.3.0	Success	5,099
Dec 21, 2025 05:54	Rajarshi Basu	CPPg++13.3.0	Success	5,086
Dec 21, 2025 05:35	Rajarshi Basu	CPPg++13.3.0	Success	5,109
Dec 21, 2025 05:23	Rajarshi Basu	CPPg++13.3.0	Success	5,103
Dec 21, 2025 05:22	Rajarshi Basu	CPPg++13.3.0	Success	5,084
Dec 21, 2025 05:08	Rajarshi Basu	CPPg++13.3.0	Success	5,110
Dec 21, 2025 05:03	Rajarshi Basu	CPPg++13.3.0	Success	5,131
Dec 21, 2025 05:01	Rajarshi Basu	CPPg++13.3.0	Success	5,121
Dec 21, 2025 04:57	Rajarshi Basu	CPPg++13.3.0	Success	5,114
Dec 21, 2025 04:54	Rajarshi Basu	CPPg++13.3.0	Error
Dec 21, 2025 04:45	xffox	CPPg++13.3.0	Success	522,850
Dec 21, 2025 04:01	xffox	CPPg++13.3.0	Success	464,612+21.52 RP
Dec 20, 2025 17:15	xffox	CPPg++13.3.0	Error
Dec 20, 2025 17:14	xffox	CPPg++13.3.0	Error
Dec 20, 2025 17:12	xffox	CPPg++13.3.0	Error
Dec 20, 2025 16:52	Rajarshi Basu	CPPg++13.3.0	Success	8,233
Dec 20, 2025 16:50	Rajarshi Basu	CPPg++13.3.0	Success	5,269
Dec 20, 2025 16:46	Rajarshi Basu	CPPg++13.3.0	Success	5,204
Dec 20, 2025 16:45	Rajarshi Basu	CPPg++13.3.0	Success	5,211
Dec 20, 2025 16:44	Rajarshi Basu	CPPg++13.3.0	Success	5,128
Dec 20, 2025 16:40	Rajarshi Basu	CPPg++13.3.0	Error
Dec 20, 2025 16:39	Rajarshi Basu	CPPg++13.3.0	Error
Dec 20, 2025 16:39	Rajarshi Basu	CPPg++13.3.0	Error
Dec 20, 2025 16:39	Rajarshi Basu	CPPg++13.3.0	Success	5,510
Dec 20, 2025 16:38	Rajarshi Basu	CPPg++13.3.0	Error
Dec 20, 2025 16:31	Rajarshi Basu	CPPg++13.3.0	Error
Dec 20, 2025 16:30	Rajarshi Basu	CPPg++13.3.0	Error
Dec 20, 2025 16:30	Rajarshi Basu	CPPg++13.3.0	Success	8,304
Dec 20, 2025 16:24	Rajarshi Basu	CPPg++13.3.0	Error
Dec 20, 2025 16:23	Rajarshi Basu	CPPg++13.3.0	Success	151,155
Dec 20, 2025 16:23	Rajarshi Basu	CPPg++13.3.0	Error
Dec 20, 2025 16:19	Rajarshi Basu	CPPg++13.3.0	Success	5,148
Dec 20, 2025 16:19	Rajarshi Basu	CPPg++13.3.0	Success	5,083
Dec 20, 2025 16:13	Rajarshi Basu	CPPg++13.3.0	Error
Dec 20, 2025 16:06	Rajarshi Basu	CPPg++13.3.0	Success	5,174
Dec 20, 2025 16:04	Rajarshi Basu	CPPg++13.3.0	Success	5,110
Dec 20, 2025 16:01	Rajarshi Basu	CPPg++13.3.0	Success	5,373
Dec 20, 2025 15:56	Rajarshi Basu	CPPg++13.3.0	Success	5,149
Dec 20, 2025 15:31	Rajarshi Basu	CPPg++13.3.0	Success	5,108
Dec 20, 2025 15:27	Rajarshi Basu	CPPg++13.3.0	Success	5,080
Dec 20, 2025 15:26	Rajarshi Basu	CPPg++13.3.0	Success	5,085
Dec 20, 2025 15:26	Rajarshi Basu	CPPg++13.3.0	Success	5,072
Dec 20, 2025 15:26	Rajarshi Basu	CPPg++13.3.0	Success	5,094
Dec 20, 2025 15:25	Rajarshi Basu	CPPg++13.3.0	Success	5,071
Dec 20, 2025 15:25	Rajarshi Basu	CPPg++13.3.0	Success	5,071
Dec 20, 2025 15:25	Rajarshi Basu	CPPg++13.3.0	Success	5,086
Dec 20, 2025 15:25	Rajarshi Basu	CPPg++13.3.0	Success	5,293
Dec 20, 2025 15:25	Rajarshi Basu	CPPg++13.3.0	Success	5,081
Dec 20, 2025 15:24	Rajarshi Basu	CPPg++13.3.0	Success	5,103
Dec 20, 2025 15:24	Rajarshi Basu	CPPg++13.3.0	Success	5,075
Dec 20, 2025 15:24	Rajarshi Basu	CPPg++13.3.0	Success	5,128
Dec 20, 2025 15:24	Rajarshi Basu	CPPg++13.3.0	Success	5,114
Dec 20, 2025 15:23	Rajarshi Basu	CPPg++13.3.0	Success	5,230
Dec 20, 2025 15:23	Rajarshi Basu	CPPg++13.3.0	Success	5,079
Dec 20, 2025 15:22	Rajarshi Basu	CPPg++13.3.0	Error
Dec 20, 2025 15:22	Rajarshi Basu	CPPg++13.3.0	Error
Dec 20, 2025 15:16	Rajarshi Basu	CPPg++13.3.0	Success	5,078
Dec 20, 2025 15:15	Rajarshi Basu	CPPg++13.3.0	Success	5,098
Dec 20, 2025 15:14	Rajarshi Basu	CPPg++13.3.0	Success	5,322
Dec 20, 2025 15:14	Rajarshi Basu	CPPg++13.3.0	Success	5,357
Dec 20, 2025 15:13	Rajarshi Basu	CPPg++13.3.0	Success	5,288
Dec 20, 2025 15:13	Rajarshi Basu	CPPg++13.3.0	Success	5,192
Dec 20, 2025 15:12	Rajarshi Basu	CPPg++13.3.0	Success	5,326
Dec 20, 2025 15:07	Rajarshi Basu	CPPg++13.3.0	Success	6,086
Dec 20, 2025 15:06	Rajarshi Basu	CPPg++13.3.0	Success	5,852
Dec 20, 2025 15:05	Rajarshi Basu	CPPg++13.3.0	Success	5,932
Dec 20, 2025 14:59	Rajarshi Basu	CPPg++13.3.0	Success	5,685
Dec 20, 2025 14:59	Rajarshi Basu	CPPg++13.3.0	Success	5,643
Dec 20, 2025 14:57	Rajarshi Basu	CPPg++13.3.0	Success	5,101
Dec 20, 2025 14:54	Rajarshi Basu	CPPg++13.3.0	Success	5,083
Dec 20, 2025 14:54	Rajarshi Basu	CPPg++13.3.0	Success	5,132
Dec 20, 2025 14:53	Rajarshi Basu	CPPg++13.3.0	Error
Dec 20, 2025 14:53	Rajarshi Basu	CPPg++13.3.0	Success	5,080
Dec 20, 2025 14:53	Rajarshi Basu	CPPg++13.3.0	Success	5,065+1.56 RP
Dec 20, 2025 14:52	Rajarshi Basu	CPPg++13.3.0	Success	5,134
Dec 20, 2025 14:51	Rajarshi Basu	CPPg++13.3.0	Success	5,085

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