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
Apr 25, 2026 04:09	Mehdi-Dehghan-Fooladi	CPPg++14.2.0	Success	29,684
Apr 25, 2026 03:52	Mehdi-Dehghan-Fooladi	CPPg++14.2.0	Error
Apr 25, 2026 03:48	olliecrow	CPPg++10.5.0	Success	14,438
Apr 25, 2026 03:29	Mehdi-Dehghan-Fooladi	CPPg++10.5.0	Error
Apr 25, 2026 03:03	Mehdi-Dehghan-Fooladi	CPPg++14.2.0	Success	27,091+213.76 RP
Apr 25, 2026 03:00	Mehdi-Dehghan-Fooladi	CPPg++14.2.0	Error
Apr 25, 2026 00:31	olliecrow	GOgo1.26.2	Success	46,388
Apr 25, 2026 00:23	olliecrow	RUSTrust-1.95.0	Success	14,827
Apr 25, 2026 00:13	olliecrow	CPPg++10.5.0	Success	12,111
Apr 24, 2026 20:38	olliecrow	GOgo1.26.2	Success	51,016
Apr 24, 2026 20:30	olliecrow	RUSTrust-1.95.0	Success	14,945
Apr 24, 2026 20:27	Mehdi-Dehghan-Fooladi	CPPg++14.2.0	Success	370,263
Apr 24, 2026 20:27	olliecrow	RUSTrust-1.95.0	Success	39,798
Apr 24, 2026 18:58	Mehdi-Dehghan-Fooladi	CPPg++10.5.0	Success	366,249
Apr 24, 2026 17:48	olliecrow	CPPg++10.5.0	Success	18,066
Apr 24, 2026 17:44	olliecrow	CPPg++10.5.0	Success	18,192
Apr 24, 2026 17:39	Charles Cabergs	CPPg++14.2.0	Success	37,566
Apr 24, 2026 15:17	olliecrow	GOgo1.26.2	Success	79,159
Apr 24, 2026 15:06	olliecrow	RUSTrust-1.95.0	Success	14,788
Apr 24, 2026 15:03	olliecrow	RUSTrust-1.95.0	Error
Apr 24, 2026 14:52	olliecrow	CPPg++10.5.0	Success	17,131
Apr 24, 2026 11:10	Dominique Garmier	CPPg++13.3.0	Success	17,787
Apr 24, 2026 11:07	Dominique Garmier	CPPg++13.3.0	Success	13,519
Apr 24, 2026 11:05	Dominique Garmier	CPPg++13.3.0	Success	13,488+12.27 RP
Apr 24, 2026 09:37	Charles Cabergs	CPPg++13.3.0	Success	37,435+0.56 RP
Apr 24, 2026 08:57	olliecrow	RUSTrust-1.95.0	Success	15,355
Apr 24, 2026 08:41	Dominique Garmier	CPPg++13.3.0	Success	21,629
Apr 24, 2026 08:05	olliecrow	GOgo1.26.2	Success	37,416
Apr 24, 2026 07:49	olliecrow	RUSTrust-1.95.0	Success	14,924
Apr 24, 2026 07:33	olliecrow	CPPclang++18.1.3	Success	18,665
Apr 24, 2026 05:07	olliecrow	GOgo1.26.2	Success	33,273
Apr 24, 2026 04:58	olliecrow	RUSTrust-1.95.0	Success	14,870
Apr 24, 2026 04:54	olliecrow	RUSTrust-1.95.0	Success	14,920
Apr 24, 2026 04:46	olliecrow	CPPg++10.5.0	Success	16,644
Apr 24, 2026 03:32	Mehdi-Dehghan-Fooladi	CPPg++14.2.0	Success	64,365+1.01 RP
Apr 24, 2026 03:16	Mehdi-Dehghan-Fooladi	CPPg++10.5.0	Success	64,787+154.35 RP
Apr 24, 2026 02:09	Charles Cabergs	CPPg++13.3.0	Success	37,513+2.63 RP
Apr 24, 2026 00:43	olliecrow	GOgo1.26.2	Success	46,075
Apr 24, 2026 00:34	olliecrow	RUSTrust-1.95.0	Success	14,950
Apr 24, 2026 00:26	olliecrow	CPPg++10.5.0	Success	18,591
Apr 23, 2026 19:59	Charles Cabergs	CPPg++13.3.0	Success	39,818
Apr 23, 2026 19:28	olliecrow	GOgo1.26.2	Success	62,593
Apr 23, 2026 19:15	olliecrow	RUSTrust-1.95.0	Success	14,682
Apr 23, 2026 14:11	Charles Cabergs	CPPg++13.3.0	Success	38,585
Apr 23, 2026 08:50	olliecrow	GOgo1.26.2	Success	62,726
Apr 23, 2026 07:44	Charles Cabergs	CPPg++13.3.0	Success	37,934
Apr 23, 2026 07:39	olliecrow	RUSTrust-1.95.0	Success	14,935
Apr 23, 2026 06:53	olliecrow	CPPg++10.5.0	Success	51,419
Apr 23, 2026 05:26	olliecrow	RUSTrust-1.95.0	Success	14,887
Apr 23, 2026 01:11	Charles Cabergs	CPPg++13.3.0	Success	37,887+4.55 RP
Apr 23, 2026 00:18	Charles Cabergs	CPPg++13.3.0	Success	38,552+9.00 RP
Apr 22, 2026 20:18	Charles Cabergs	CPPg++13.3.0	Success	39,955
Apr 22, 2026 18:26	Charles Cabergs	CPPg++13.3.0	Success	39,937+4.98 RP
Apr 22, 2026 18:02	Charles Cabergs	CPPg++13.3.0	Success	40,747+21.92 RP
Apr 22, 2026 12:12	Ben	CPPclang++18.1.3	Success	30,739+80.56 RP
Apr 22, 2026 12:11	Ben	CPPg++10.5.0	Success	186,081
Apr 22, 2026 04:58	olliecrow	RUSTrust-1.95.0	Success	15,090
Apr 22, 2026 04:54	olliecrow	RUSTrust-1.95.0	Error
Apr 22, 2026 04:53	olliecrow	RUSTrust-1.95.0	Error
Apr 22, 2026 00:53	olliecrow	RUSTrust-1.95.0	Success	14,868
Apr 22, 2026 00:19	olliecrow	CSHARP9.0.14	Success	13,216
Apr 22, 2026 00:05	olliecrow	CPPg++10.5.0	Success	21,174
Apr 21, 2026 22:37	olliecrow	CPPg++10.5.0	Success	21,173
Apr 21, 2026 20:40	olliecrow	CPPg++10.5.0	Success	21,150
Apr 21, 2026 19:47	olliecrow	CPPg++10.5.0	Success	21,144
Apr 21, 2026 17:50	Charles Cabergs	CPPg++13.3.0	Success	44,743+9.32 RP
Apr 21, 2026 17:24	Ben	CPPclang++18.1.3	Success	40,856+97.80 RP
Apr 21, 2026 15:52	olliecrow	CPPg++13.3.0	Success	16,292
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	RUSTrust-1.94.0	Success	78,463

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