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
Nov 11, 2025 22:42	Aniruddha Deb	CPPg++13.3.0	Error
Nov 11, 2025 22:40	Aniruddha Deb	CPPg++13.3.0	Error
Nov 11, 2025 22:40	Aniruddha Deb	CPPg++13.3.0	Success	14,780+110.92 RP
Nov 11, 2025 22:38	Aniruddha Deb	CPPg++13.3.0	Error
Nov 11, 2025 22:32	Aniruddha Deb	CPPg++13.3.0	Error
Nov 11, 2025 22:30	Aniruddha Deb	CPPg++13.3.0	Error
Nov 11, 2025 22:28	Aniruddha Deb	CPPg++13.3.0	Success	18,156
Nov 11, 2025 22:27	Aniruddha Deb	CPPg++13.3.0	Error
Nov 11, 2025 22:26	Aniruddha Deb	CPPg++13.3.0	Error
Nov 11, 2025 21:59	Aniruddha Deb	CPPg++13.3.0	Success	20,294
Nov 11, 2025 21:50	Aniruddha Deb	CPPg++13.3.0	Success	17,876
Nov 6, 2025 09:52	izotoff	GOgo1.12.4	Error
Nov 6, 2025 09:49	izotoff	GOgo1.12.4	Success	238,729
Nov 6, 2025 09:47	izotoff	GOgo1.12.4	Error
Nov 6, 2025 09:25	izotoff	GOgo1.12.4	Success	235,099
Nov 6, 2025 09:24	izotoff	GOgo1.12.4	Error
Nov 6, 2025 09:23	izotoff	GOgo1.12.4	Success	235,587
Nov 6, 2025 09:02	izotoff	GOgo1.12.4	Success	237,927
Nov 6, 2025 08:59	izotoff	GOgo1.25.4	Success	272,394
Nov 6, 2025 08:55	izotoff	GOgo1.18	Success	233,802
Nov 6, 2025 08:53	izotoff	GOgo1.18	Error
Nov 6, 2025 08:49	izotoff	GOgo1.18	Error
Nov 6, 2025 08:47	izotoff	GOgo1.18	Error
Nov 6, 2025 08:42	izotoff	GOgo1.18	Success	230,581
Nov 6, 2025 08:19	izotoff	GOgo1.18	Error
Nov 6, 2025 08:18	izotoff	GOgo1.18	Error
Nov 6, 2025 08:15	izotoff	GOgo1.18	Error
Nov 6, 2025 08:10	izotoff	GOgo1.18	Error
Nov 6, 2025 07:58	izotoff	GOgo1.18	Success	256,002
Nov 6, 2025 07:40	izotoff	GOgo1.18	Success	230,118+1.31 RP
Nov 6, 2025 07:29	izotoff	GOgo1.18	Success	237,282+6.65 RP
Nov 6, 2025 06:47	izotoff	GOgo1.25.4	Success	281,787
Nov 6, 2025 06:45	izotoff	GOgo1.25.4	Success	281,743+35.49 RP
Nov 3, 2025 16:33	prashantbits01	CPPg++13.3.0	Success	459,452+21.77 RP
Nov 3, 2025 12:37	vonqo	CPPg++13.3.0	Error
Nov 3, 2025 12:32	vonqo	CPPg++13.3.0	Error
Nov 3, 2025 07:33	vonqo	CPPg++13.3.0	Success	318,034+11.06 RP
Nov 3, 2025 07:28	vonqo	CPPg++13.3.0	Error
Nov 3, 2025 06:38	vonqo	CPPg++13.3.0	Success	490,629+20.38 RP
Nov 2, 2025 16:42	triscacezar-droid	CPPg++13.3.0	Success	490,231+20.40 RP
Oct 30, 2025 09:12	Alexander-Popov	GOgo1.25.3	Success	310,165
Oct 30, 2025 09:11	Alexander-Popov	GOgo1.25.3	Error
Oct 30, 2025 09:07	Alexander-Popov	GOgo1.25.3	Success	270,523+1.37 RP
Oct 30, 2025 08:53	Alexander-Popov	GOgo1.25.3	Success	280,954+35.59 RP
Oct 29, 2025 21:22	Keebran Masalan	GOgo1.25.3	Error
Oct 29, 2025 20:58	Keebran Masalan	GOgo1.25.3	Success	270,250+1.54 RP
Oct 29, 2025 20:42	Keebran Masalan	GOgo1.25.3	Success	281,993+35.46 RP
Oct 23, 2025 19:38	Rashin Sergey	CPPg++13.3.0	Success	489,192+20.44 RP
Oct 23, 2025 08:37	Daniel Mastalerz	CPPg++13.3.0	Success	67,243+32.45 RP
Oct 22, 2025 19:52	Daniel Mastalerz	CPPg++13.3.0	Success	86,008+116.27 RP
Oct 15, 2025 02:01	Nguyen Thanh Vinh	CPPg++13.3.0	Success	211,786+7.73 RP
Oct 14, 2025 17:38	Nguyen Thanh Vinh	CPPg++13.3.0	Success	253,248+8.09 RP
Oct 14, 2025 17:07	Nguyen Thanh Vinh	CPPg++13.3.0	Success	318,494+0.62 RP
Oct 14, 2025 17:00	Nguyen Thanh Vinh	CPPg++13.3.0	Success	348,086
Oct 14, 2025 16:08	Nguyen Thanh Vinh	CPPg++13.3.0	Success	329,589
Oct 14, 2025 07:24	Nguyen Thanh Vinh	CPPg++13.3.0	Success	338,792
Oct 14, 2025 07:15	Nguyen Thanh Vinh	CPPg++13.3.0	Success	351,174
Oct 14, 2025 06:38	Nguyen Thanh Vinh	CPPg++13.3.0	Error
Oct 14, 2025 02:50	Nguyen Thanh Vinh	CPPg++13.3.0	Success	324,900+0.09 RP
Oct 14, 2025 02:29	Nguyen Thanh Vinh	CPPg++13.3.0	Success	328,496
Oct 12, 2025 20:29	Marco Barbone	CPPg++13.3.0	Success	163,170
Oct 12, 2025 20:26	Marco Barbone	CPPg++13.3.0	Error
Oct 12, 2025 03:50	Marco Barbone	CPPg++13.3.0	Success	44,235
Oct 12, 2025 03:49	Marco Barbone	CPPg++13.3.0	Success	45,531
Oct 12, 2025 03:48	Marco Barbone	CPPg++13.3.0	Success	45,197
Oct 12, 2025 03:47	Marco Barbone	CPPg++13.3.0	Success	45,746
Oct 12, 2025 03:40	Marco Barbone	CPPg++13.3.0	Success	41,804+0.63 RP
Oct 12, 2025 03:38	Marco Barbone	CPPg++13.3.0	Success	41,915+16.04 RP
Oct 12, 2025 03:29	Marco Barbone	CPPg++13.3.0	Success	44,937+8.54 RP
Oct 12, 2025 03:29	Marco Barbone	CPPg++13.3.0	Success	46,901
Oct 12, 2025 03:26	Marco Barbone	CPPg++13.3.0	Success	46,730+1.19 RP
Oct 12, 2025 03:25	Marco Barbone	CPPg++13.3.0	Success	54,143
Oct 12, 2025 03:24	Marco Barbone	CPPg++13.3.0	Success	48,786
Oct 12, 2025 03:22	Marco Barbone	CPPg++13.3.0	Success	47,895
Oct 12, 2025 03:21	Marco Barbone	CPPg++13.3.0	Success	47,989
Oct 12, 2025 03:18	Marco Barbone	CPPg++13.3.0	Success	51,464
Oct 12, 2025 03:14	Marco Barbone	CPPg++13.3.0	Success	49,924
Oct 12, 2025 03:14	Marco Barbone	CPPg++13.3.0	Success	49,688
Oct 12, 2025 03:04	Marco Barbone	CPPclang++18.1.3	Success	48,133
Oct 12, 2025 03:04	Marco Barbone	CPPg++13.3.0	Success	46,992+96.38 RP
Oct 12, 2025 02:55	Marco Barbone	CPPg++13.3.0	Success	85,894+20.99 RP
Oct 12, 2025 02:51	Marco Barbone	CPPg++13.3.0	Success	104,790+7.85 RP
Oct 12, 2025 02:08	Marco Barbone	CPPg++13.3.0	Success	114,189+57.19 RP
Oct 12, 2025 00:40	Marco Barbone	CPPg++13.3.0	Success	329,074+30.39 RP
Oct 10, 2025 05:30	Yuriy Lyfenko	CPPclang++18.1.3	Error
Oct 10, 2025 05:30	Yuriy Lyfenko	CPPclang++18.1.3	Error
Oct 3, 2025 23:52	Martin Stensgård	CPPg++13.3.0	Success	259,893+18.15 RP
Oct 3, 2025 22:53	Martin Stensgård	CPPg++13.3.0	Error
Oct 3, 2025 22:51	Martin Stensgård	CPPg++13.3.0	Error
Oct 3, 2025 20:49	Martin Stensgård	CPPg++13.3.0	Error
Oct 3, 2025 20:43	Martin Stensgård	CPPg++13.3.0	Error
Oct 3, 2025 20:15	Martin Stensgård	CPPg++13.3.0	Error
Oct 3, 2025 20:10	Martin Stensgård	CPPg++13.3.0	Error
Oct 3, 2025 20:06	Martin Stensgård	CPPg++13.3.0	Error
Oct 3, 2025 19:04	Martin Stensgård	CPPg++13.3.0	Error
Oct 3, 2025 19:02	Martin Stensgård	CPPg++13.3.0	Success	491,839+20.33 RP
Sep 26, 2025 18:23	Saaska	GOgo1.25.1	Success	270,097+37.02 RP
Sep 26, 2025 11:59	Wookyung Jeong	CPPg++13.3.0	Success	96,298
Sep 26, 2025 11:49	Wookyung Jeong	CPPg++13.3.0	Success	95,641+10.57 RP
Sep 26, 2025 11:43	Wookyung Jeong	CPPg++13.3.0	Error

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