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
Apr 21, 2026 15:49	olliecrow	CPPg++10.5.0	Success	20,883
Apr 21, 2026 15:44	Charles Cabergs	CPPg++13.3.0	Success	46,691+16.81 RP
Apr 21, 2026 15:14	Ben	CPPclang++18.1.3	Success	84,861
Apr 21, 2026 09:41	olliecrow	CPPg++10.5.0	Error
Apr 21, 2026 09:19	Charles Cabergs	CPPg++13.3.0	Success	51,663
Apr 21, 2026 07:19	Charles Cabergs	CPPg++13.3.0	Success	50,667+11.48 RP
Apr 21, 2026 06:42	limanjun99	CPPg++14.2.0	Success	24,892
Apr 21, 2026 06:36	limanjun99	CPPg++14.2.0	Success	23,692
Apr 21, 2026 06:34	limanjun99	CPPg++14.2.0	Error
Apr 21, 2026 05:25	limanjun99	CPPg++14.2.0	Error
Apr 21, 2026 05:21	Charles Cabergs	CPPg++13.3.0	Success	57,744
Apr 21, 2026 04:33	olliecrow	CPPg++10.5.0	Success	21,147
Apr 21, 2026 04:12	limanjun99	CPPg++14.2.0	Success	17,320
Apr 21, 2026 03:33	Charles Cabergs	CPPg++13.3.0	Success	53,796+0.76 RP
Apr 20, 2026 23:51	Charles Cabergs	CPPg++13.3.0	Success	54,017+7.50 RP
Apr 20, 2026 23:48	Taylor Dettling	RUSTrust-1.95.0	Success	82,562+28.01 RP
Apr 20, 2026 23:46	Taylor Dettling	RUSTrust-1.95.0	Error
Apr 20, 2026 23:44	Taylor Dettling	RUSTrust-1.95.0	Error
Apr 20, 2026 23:43	Taylor Dettling	RUSTrust-1.95.0	Error
Apr 20, 2026 23:40	Taylor Dettling	RUSTrust-1.95.0	Success	107,398+93.11 RP
Apr 20, 2026 22:14	olliecrow	CPPg++10.5.0	Success	21,149
Apr 20, 2026 21:42	Alexander Krivolapov	RUSTrust-1.95.0	Success	23,487+36.31 RP
Apr 20, 2026 20:22	Alexander Krivolapov	RUSTrust-1.95.0	Success	27,887
Apr 20, 2026 20:20	Charles Cabergs	CPPg++13.3.0	Success	99,598
Apr 20, 2026 20:18	Alexander Krivolapov	RUSTrust-1.93.1	Error
Apr 20, 2026 20:10	Alexander Krivolapov	RUSTrust-1.95.0	Success	26,216
Apr 20, 2026 17:23	olliecrow	CPPg++13.3.0	Success	20,833
Apr 20, 2026 16:52	Ben	CPPg++13.3.0	Success	68,046+14.78 RP
Apr 20, 2026 16:23	Ben	CPPclang++18.1.3	Success	77,078
Apr 20, 2026 15:54	Ben	CPPg++13.3.0	Success	75,844
Apr 20, 2026 15:26	Ben	CPPg++13.3.0	Success	75,829
Apr 20, 2026 15:13	Ben	CPPg++13.3.0	Success	75,652+5.79 RP
Apr 20, 2026 15:13	Ben	RUSTrust-1.94.0	Success	78,463
Apr 20, 2026 14:16	Ben	CPPg++13.3.0	Success	89,520
Apr 20, 2026 14:16	Ben	RUSTrust-1.94.0	Success	106,729
Apr 20, 2026 13:44	Ben	ZIG0.14.0	Success	83,611
Apr 20, 2026 13:39	Ben	GOgo1.26.1	Success	124,125
Apr 20, 2026 13:39	Ben	ZIG0.14.0	Error
Apr 20, 2026 13:37	Ben	RUSTrust-1.94.0	Success	79,116+0.37 RP
Apr 20, 2026 13:37	Ben	CPPclang++18.1.3	Success	84,603
Apr 20, 2026 13:34	Ben	CPPg++13.3.0	Success	79,346+126.03 RP
Apr 20, 2026 13:27	olliecrow	ZIG0.14.0	Success	9,655
Apr 20, 2026 13:26	olliecrow	RUSTrust-1.94.0	Success	14,697
Apr 20, 2026 13:20	olliecrow	CPPg++13.3.0	Success	20,373
Apr 20, 2026 12:14	olliecrow	ZIG0.14.0	Success	9,624+14.58 RP
Apr 20, 2026 12:12	olliecrow	RUSTrust-1.94.0	Success	14,912
Apr 20, 2026 12:04	olliecrow	CPPclang++18.1.3	Success	20,348
Apr 19, 2026 06:39	olliecrow	CPPclang++18.1.3	Success	22,235
Apr 19, 2026 06:32	limanjun99	CPPg++13.3.0	Success	66,008
Apr 19, 2026 06:30	limanjun99	CPPg++13.3.0	Error
Apr 19, 2026 06:29	limanjun99	CPPg++13.3.0	Error
Apr 19, 2026 06:28	limanjun99	CPPg++13.3.0	Error
Apr 19, 2026 06:19	limanjun99	CPPg++13.3.0	Success	15,429
Apr 19, 2026 06:13	limanjun99	CPPg++13.3.0	Error
Apr 19, 2026 04:42	olliecrow	CPPclang++18.1.3	Success	16,164
Apr 19, 2026 03:55	Charles Cabergs	CPPg++13.3.0	Success	62,074
Apr 19, 2026 02:48	olliecrow	CPPclang++18.1.3	Success	22,243
Apr 18, 2026 18:34	Charles Cabergs	CPPg++13.3.0	Success	84,919
Apr 18, 2026 16:23	Charles Cabergs	CPPg++13.3.0	Success	56,631
Apr 18, 2026 14:40	limanjun99	CPPg++13.3.0	Success	71,004
Apr 18, 2026 14:38	limanjun99	CPPg++13.3.0	Error
Apr 18, 2026 14:37	limanjun99	CPPg++13.3.0	Error
Apr 18, 2026 14:33	limanjun99	CPPg++13.3.0	Error
Apr 18, 2026 07:24	limanjun99	CPPg++13.3.0	Error
Apr 18, 2026 07:20	limanjun99	CPPg++13.3.0	Error
Apr 18, 2026 07:08	limanjun99	CPPg++13.3.0	Error
Apr 18, 2026 03:37	Charles Cabergs	CPPg++13.3.0	Success	56,299+17.03 RP
Apr 18, 2026 02:38	olliecrow	GOgo1.26.1	Success	11,014
Apr 18, 2026 02:28	olliecrow	CSHARP9.0.14	Success	13,191
Apr 17, 2026 21:42	Charles Cabergs	CPPg++13.3.0	Success	62,725
Apr 17, 2026 19:56	Charles Cabergs	CPPg++13.3.0	Success	62,268+24.78 RP
Apr 17, 2026 17:10	Charles Cabergs	CPPg++13.3.0	Success	73,628+135.82 RP
Apr 17, 2026 01:17	olliecrow	RUSTrust-1.94.0	Success	14,866
Apr 16, 2026 23:50	olliecrow	RUSTrust-1.94.0	Success	14,483
Apr 16, 2026 19:00	olliecrow	RUSTrust-1.94.0	Success	14,808
Apr 16, 2026 18:58	olliecrow	GOgo1.26.1	Success	11,067
Apr 16, 2026 18:49	olliecrow	ZIG0.14.0	Success	28,638
Apr 16, 2026 18:14	olliecrow	CPPclang++18.1.3	Success	16,035
Apr 16, 2026 17:21	olliecrow	CPPclang++18.1.3	Success	22,269
Apr 16, 2026 16:57	olliecrow	CPPclang++18.1.3	Success	16,402
Apr 16, 2026 16:27	olliecrow	CPPclang++18.1.3	Success	14,417
Apr 16, 2026 16:24	olliecrow	CPPclang++18.1.3	Success	16,278
Apr 16, 2026 16:17	olliecrow	CPPclang++18.1.3	Success	22,518
Apr 16, 2026 16:15	olliecrow	CPPclang++18.1.3	Success	22,832
Apr 16, 2026 16:12	olliecrow	CPPclang++18.1.3	Success	29,667
Apr 15, 2026 18:21	olliecrow	ZIG0.14.0	Success	9,754
Apr 15, 2026 15:42	olliecrow	ZIG0.14.0	Success	9,741
Apr 15, 2026 05:55	olliecrow	GOgo1.26.1	Success	11,078
Apr 15, 2026 05:11	olliecrow	GOgo1.26.1	Success	11,009
Apr 14, 2026 16:43	Oleg Skinderev	CPPg++13.3.0	Success	34,103
Apr 13, 2026 18:00	Oleg Skinderev	CPPg++13.3.0	Success	34,062+0.89 RP
Apr 13, 2026 17:57	Oleg Skinderev	CPPg++13.3.0	Success	34,165+165.50 RP
Apr 13, 2026 17:57	Oleg Skinderev	CPPg++13.3.0	Success	84,252
Apr 13, 2026 17:55	Oleg Skinderev	CPPg++13.3.0	Success	120,849
Apr 13, 2026 17:53	Oleg Skinderev	CPPg++13.3.0	Success	78,617+81.72 RP
Apr 13, 2026 17:39	Oleg Skinderev	CPPg++13.3.0	Error
Apr 13, 2026 17:38	Oleg Skinderev	CPPg++13.3.0	Error
Apr 12, 2026 09:32	Aditya	CPPg++13.3.0	Error
Apr 11, 2026 21:45	Aditya	CPPg++13.3.0	Success	64,608+59.46 RP
Apr 11, 2026 21:42	Aditya	CPPg++13.3.0	Error

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