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 22, 2025 16:27	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 16:17	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 16:03	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 15:59	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 15:58	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 15:56	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 15:28	Josu San Martin	CPPg++13.3.0	Success	55,980
Dec 22, 2025 15:26	Josu San Martin	CPPclang++18.1.3	Success	58,609
Dec 22, 2025 15:14	Rajarshi Basu	CPPg++13.3.0	Success	4,937
Dec 22, 2025 15:02	Josu San Martin	RUSTrust-1.92.0	Success	36,617
Dec 22, 2025 15:01	Rajarshi Basu	CPPg++13.3.0	Error
Dec 22, 2025 15:00	Josu San Martin	CPPclang++18.1.3	Error
Dec 22, 2025 15:00	Josu San Martin	CPPclang++18.1.3	Error
Dec 22, 2025 15:00	Josu San Martin	CPPclang++18.1.3	Error
Dec 22, 2025 14:57	Rajarshi Basu	CPPg++13.3.0	Error
Dec 22, 2025 14:53	Rajarshi Basu	CPPg++13.3.0	Success	4,898
Dec 22, 2025 14:52	Rajarshi Basu	CPPg++13.3.0	Error
Dec 22, 2025 14:49	Rajarshi Basu	CPPg++13.3.0	Success	4,871
Dec 22, 2025 14:49	Rajarshi Basu	CPPg++13.3.0	Success	4,877
Dec 22, 2025 14:48	Rajarshi Basu	CPPg++13.3.0	Success	4,876
Dec 22, 2025 14:48	Rajarshi Basu	CPPg++13.3.0	Success	4,921
Dec 22, 2025 14:47	Rajarshi Basu	CPPg++13.3.0	Success	4,854
Dec 22, 2025 14:46	Rajarshi Basu	CPPg++13.3.0	Success	4,847+4.67 RP
Dec 22, 2025 14:46	Rajarshi Basu	CPPg++13.3.0	Success	4,897
Dec 22, 2025 14:38	Rajarshi Basu	CPPg++13.3.0	Success	4,858+0.42 RP
Dec 22, 2025 14:35	Rajarshi Basu	CPPg++13.3.0	Error
Dec 22, 2025 14:33	Rajarshi Basu	CPPg++13.3.0	Error
Dec 22, 2025 14:32	Rajarshi Basu	CPPg++13.3.0	Error
Dec 22, 2025 14:31	Rajarshi Basu	CPPg++13.3.0	Error
Dec 22, 2025 14:29	Rajarshi Basu	CPPg++13.3.0	Success	15,834
Dec 22, 2025 14:29	Rajarshi Basu	CPPg++13.3.0	Success	15,921
Dec 22, 2025 14:28	Rajarshi Basu	CPPg++13.3.0	Success	15,835
Dec 22, 2025 14:28	Rajarshi Basu	CPPg++13.3.0	Error
Dec 22, 2025 14:27	Rajarshi Basu	CPPg++13.3.0	Success	15,893
Dec 22, 2025 14:25	Rajarshi Basu	CPPg++13.3.0	Success	5,000
Dec 22, 2025 14:24	Rajarshi Basu	CPPg++13.3.0	Success	15,931
Dec 22, 2025 14:22	Rajarshi Basu	CPPg++13.3.0	Error
Dec 22, 2025 14:21	Rajarshi Basu	CPPg++13.3.0	Error
Dec 22, 2025 14:18	Rajarshi Basu	CPPg++13.3.0	Error
Dec 22, 2025 14:14	Rajarshi Basu	CPPg++13.3.0	Success	15,872
Dec 22, 2025 14:12	Rajarshi Basu	CPPg++13.3.0	Success	15,739
Dec 22, 2025 13:22	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 13:21	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 13:20	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 13:10	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 13:05	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 12:58	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 12:57	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 12:55	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 12:53	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 12:52	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 12:51	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 12:47	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 12:45	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 12:45	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 12:43	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 12:41	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 12:36	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 12:34	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 11:17	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 11:15	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 11:10	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 11:09	Rajarshi Basu	CPPg++13.3.0	Success	4,859+1.69 RP
Dec 22, 2025 11:08	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 11:03	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 11:01	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 10:59	Rajarshi Basu	CPPg++13.3.0	Success	5,024
Dec 22, 2025 10:59	Rajarshi Basu	CPPg++13.3.0	Success	4,872
Dec 22, 2025 10:57	Rajarshi Basu	CPPg++13.3.0	Success	4,864
Dec 22, 2025 10:56	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 10:56	Rajarshi Basu	CPPg++13.3.0	Success	4,915
Dec 22, 2025 10:54	Rajarshi Basu	CPPg++13.3.0	Error
Dec 22, 2025 10:54	Rajarshi Basu	CPPg++13.3.0	Success	4,876
Dec 22, 2025 10:51	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 10:46	Rajarshi Basu	CPPg++13.3.0	Success	4,912
Dec 22, 2025 10:46	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 10:43	Rajarshi Basu	CPPg++13.3.0	Success	4,863+3.38 RP
Dec 22, 2025 10:41	Rajarshi Basu	CPPg++13.3.0	Success	4,871+11.73 RP
Dec 22, 2025 10:38	Rajarshi Basu	CPPg++13.3.0	Error
Dec 22, 2025 10:38	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 10:37	Rajarshi Basu	CPPg++13.3.0	Success	4,901
Dec 22, 2025 10:35	Rajarshi Basu	CPPg++13.3.0	Success	4,918
Dec 22, 2025 10:34	Rajarshi Basu	CPPg++13.3.0	Success	5,218
Dec 22, 2025 10:34	Rajarshi Basu	CPPg++13.3.0	Success	4,914
Dec 22, 2025 10:33	Rajarshi Basu	CPPg++13.3.0	Success	4,899+12.84 RP
Dec 22, 2025 10:31	Rajarshi Basu	CPPg++13.3.0	Success	5,203
Dec 22, 2025 10:31	Rajarshi Basu	CPPg++13.3.0	Success	4,955
Dec 22, 2025 10:31	Rajarshi Basu	CPPg++13.3.0	Success	4,940
Dec 22, 2025 10:30	Rajarshi Basu	CPPg++13.3.0	Success	4,937
Dec 22, 2025 10:29	Rajarshi Basu	CPPg++13.3.0	Error
Dec 22, 2025 10:27	Rajarshi Basu	CPPg++13.3.0	Success	4,933
Dec 22, 2025 10:26	Rajarshi Basu	CPPclang++18.1.3	Success	5,051
Dec 22, 2025 10:23	Rajarshi Basu	CPPg++13.3.0	Success	4,930+11.46 RP
Dec 22, 2025 10:16	Rajarshi Basu	CPPg++13.3.0	Error
Dec 22, 2025 10:14	Rajarshi Basu	CPPg++13.3.0	Error
Dec 22, 2025 10:13	Rajarshi Basu	CPPg++13.3.0	Error
Dec 22, 2025 10:10	Rajarshi Basu	CPPg++13.3.0	Success	4,958+3.25 RP
Dec 22, 2025 10:06	Rajarshi Basu	CPPg++13.3.0	Success	4,997
Dec 22, 2025 10:06	Rajarshi Basu	CPPg++13.3.0	Success	5,096
Dec 22, 2025 10:05	Rajarshi Basu	CPPg++13.3.0	Success	5,071

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