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
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
Sep 26, 2025 11:43	Wookyung Jeong	CPPg++13.3.0	Success	106,397+1.77 RP
Sep 26, 2025 11:41	Wookyung Jeong	CPPg++13.3.0	Success	109,394
Sep 26, 2025 11:36	Wookyung Jeong	CPPg++13.3.0	Success	108,441+0.42 RP
Sep 26, 2025 11:27	Wookyung Jeong	CPPg++13.3.0	Success	108,941+25.74 RP
Sep 26, 2025 11:25	Wookyung Jeong	CPPg++13.3.0	Error
Sep 26, 2025 11:22	Wookyung Jeong	CPPg++13.3.0	Error
Sep 26, 2025 11:20	Wookyung Jeong	CPPg++13.3.0	Error
Sep 26, 2025 11:19	Wookyung Jeong	CPPg++13.3.0	Error
Sep 26, 2025 11:16	Wookyung Jeong	CPPg++13.3.0	Error
Sep 26, 2025 11:11	Wookyung Jeong	CPPg++13.3.0	Error
Sep 26, 2025 11:09	Wookyung Jeong	CPPg++13.3.0	Error
Sep 26, 2025 10:57	Wookyung Jeong	CPPg++13.3.0	Success	151,397+0.14 RP
Sep 26, 2025 10:54	Wookyung Jeong	CPPg++13.3.0	Success	151,710+5.93 RP
Sep 26, 2025 09:21	Ruoyu Qiu	CPPg++13.3.0	Success	490,692+20.38 RP
Sep 25, 2025 15:48	Wookyung Jeong	CPPg++13.3.0	Success	168,016
Sep 25, 2025 15:38	Wookyung Jeong	CPPg++13.3.0	Error
Sep 25, 2025 15:37	Wookyung Jeong	CPPg++13.3.0	Error
Sep 25, 2025 15:36	Wookyung Jeong	CPPg++13.3.0	Error
Sep 25, 2025 15:36	Wookyung Jeong	CPPg++13.3.0	Error
Sep 25, 2025 15:32	Wookyung Jeong	CPPg++13.3.0	Success	166,721+2.95 RP
Sep 25, 2025 15:24	Wookyung Jeong	CPPg++13.3.0	Success	175,357+1.00 RP
Sep 25, 2025 15:23	Wookyung Jeong	CPPg++13.3.0	Error
Sep 25, 2025 15:16	Wookyung Jeong	CPPg++13.3.0	Error
Sep 25, 2025 15:13	Wookyung Jeong	CPPg++13.3.0	Success	185,654
Sep 25, 2025 15:07	Wookyung Jeong	CPPg++13.3.0	Success	178,493+0.14 RP
Sep 25, 2025 15:06	Wookyung Jeong	CPPg++13.3.0	Success	178,948+4.18 RP
Sep 25, 2025 14:50	Wookyung Jeong	CPPg++13.3.0	Success	193,406+7.73 RP
Sep 25, 2025 14:47	Wookyung Jeong	CPPg++13.3.0	Error
Sep 25, 2025 14:40	Wookyung Jeong	CPPg++13.3.0	Success	227,381+0.17 RP
Sep 25, 2025 14:39	Wookyung Jeong	CPPg++13.3.0	Success	237,207
Sep 25, 2025 14:38	Wookyung Jeong	CPPg++13.3.0	Success	235,119
Sep 25, 2025 14:36	Wookyung Jeong	CPPg++13.3.0	Success	228,279+43.81 RP
Sep 19, 2025 12:00	Myles	CPPg++13.3.0	Error
Sep 19, 2025 03:46	Myles	CPPg++13.3.0	Error
Sep 19, 2025 03:45	Myles	CPPg++13.3.0	Error
Sep 19, 2025 03:21	Myles	CPPg++13.3.0	Success	277,882+35.99 RP
Sep 19, 2025 03:17	Myles	CPPg++13.3.0	Error
Sep 19, 2025 01:04	Myles	CPPg++13.3.0	Error
Sep 19, 2025 01:04	Myles	CPPg++13.3.0	Error
Aug 31, 2025 19:18	zielaj	CPPclang++18.1.3	Error
Aug 31, 2025 16:00	zielaj	CPPclang++18.1.3	Error
Aug 31, 2025 12:11	zielaj	CPPg++13.3.0	Error
Aug 31, 2025 12:09	zielaj	CPPg++13.3.0	Error
Aug 31, 2025 12:05	zielaj	CPPg++13.3.0	Error
Aug 31, 2025 11:55	zielaj	CPPg++13.3.0	Error
Aug 31, 2025 11:47	zielaj	CPPg++13.3.0	Error
Aug 27, 2025 18:19	Aryan Jain	CPPg++13.3.0	Success	304,621+12.49 RP
Aug 27, 2025 18:12	Aryan Jain	CPPg++13.3.0	Error
Aug 27, 2025 18:04	Aryan Jain	CPPg++13.3.0	Success	491,643+20.34 RP
Aug 23, 2025 09:37	Adam Folwarczny	CPPg++13.3.0	Success	125,188
Aug 23, 2025 09:35	Adam Folwarczny	CPPg++13.3.0	Success	124,822+0.53 RP
Aug 23, 2025 09:34	Adam Folwarczny	CPPg++13.3.0	Error
Aug 23, 2025 09:28	Adam Folwarczny	CPPg++13.3.0	Success	125,651+59.22 RP
Aug 23, 2025 09:27	Adam Folwarczny	CPPg++13.3.0	Success	490,971+20.37 RP
Aug 14, 2025 20:49	Aniruddha Deb	CPPclang++18.1.3	Success	17,678+1.31 RP
Aug 13, 2025 18:21	Leon Zhao	CPPg++13.3.0	Error
Aug 13, 2025 16:01	Leon Zhao	CPPg++13.3.0	Success	15,957
Aug 13, 2025 16:00	Leon Zhao	CPPg++13.3.0	Error
Aug 13, 2025 15:38	Leon Zhao	CPPg++13.3.0	Success	15,598

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