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
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
Aug 13, 2025 15:35	Leon Zhao	CPPg++13.3.0	Success	17,491
Aug 13, 2025 15:33	Leon Zhao	CPPg++13.3.0	Error
Aug 13, 2025 02:25	Leon Zhao	CPPg++13.3.0	Success	21,121
Aug 13, 2025 01:42	Leon Zhao	CPPg++13.3.0	Error
Aug 13, 2025 01:23	Leon Zhao	CPPg++13.3.0	Success	19,719
Aug 13, 2025 01:22	Leon Zhao	CPPg++13.3.0	Error
Aug 13, 2025 01:20	Leon Zhao	CPPg++13.3.0	Success	17,688
Aug 13, 2025 01:05	Leon Zhao	CPPg++13.3.0	Success	15,505+3.64 RP
Aug 13, 2025 01:03	Leon Zhao	CPPg++13.3.0	Success	19,146
Aug 13, 2025 00:49	Leon Zhao	CPPg++13.3.0	Error
Aug 13, 2025 00:46	Leon Zhao	CPPg++13.3.0	Success	15,611
Aug 13, 2025 00:07	Leon Zhao	CPPg++13.3.0	Success	15,630
Aug 13, 2025 00:02	Leon Zhao	CPPg++13.3.0	Success	15,593+58.63 RP
Aug 12, 2025 23:15	Leon Zhao	CPPg++13.3.0	Success	24,947
Aug 12, 2025 23:06	Leon Zhao	CPPg++13.3.0	Success	17,742
Aug 12, 2025 23:02	Leon Zhao	CPPg++13.3.0	Error
Aug 12, 2025 21:53	Leon Zhao	CPPg++13.3.0	Success	17,162+166.61 RP
Aug 12, 2025 19:37	Leon Zhao	CPPg++13.3.0	Success	26,780
Aug 12, 2025 19:35	Leon Zhao	CPPg++13.3.0	Error
Aug 12, 2025 19:34	Leon Zhao	CPPg++13.3.0	Error
Aug 11, 2025 21:41	Leon Zhao	CPPg++13.3.0	Success	24,320
Aug 11, 2025 21:40	Leon Zhao	CPPg++13.3.0	Success	30,255
Aug 11, 2025 21:39	Leon Zhao	CPPg++13.3.0	Success	30,222
Aug 11, 2025 21:36	Leon Zhao	CPPg++13.3.0	Success	26,070
Aug 11, 2025 21:31	Leon Zhao	CPPg++13.3.0	Error
Aug 11, 2025 21:28	Leon Zhao	CPPg++13.3.0	Success	25,277
Aug 11, 2025 21:27	Leon Zhao	CPPg++13.3.0	Error
Aug 11, 2025 21:24	Leon Zhao	CPPg++13.3.0	Success	29,115
Aug 11, 2025 21:21	Leon Zhao	CPPg++13.3.0	Success	24,034+203.95 RP
Aug 11, 2025 20:18	Leon Zhao	CPPg++13.3.0	Success	53,241
Aug 11, 2025 20:11	Leon Zhao	CPPg++13.3.0	Success	47,142+76.53 RP
Aug 11, 2025 20:00	Leon Zhao	CPPg++13.3.0	Success	73,747+57.38 RP
Aug 11, 2025 19:48	Leon Zhao	CPPg++13.3.0	Success	127,852+27.63 RP
Aug 11, 2025 19:42	Leon Zhao	CPPg++13.3.0	Success	197,696+2.23 RP
Aug 11, 2025 19:37	Leon Zhao	CPPg++13.3.0	Success	206,807+27.92 RP
Aug 11, 2025 19:12	Leon Zhao	CPPg++13.3.0	Success	489,304+0.08 RP
Aug 11, 2025 02:42	Leon Zhao	CPPg++13.3.0	Success	491,125+20.36 RP
Aug 4, 2025 18:55	Leonardo Pedrozo Amaral	CPPg++13.3.0	Success	118,107
Aug 4, 2025 18:54	Leonardo Pedrozo Amaral	CPPg++13.3.0	Success	122,398
Aug 4, 2025 18:50	Leonardo Pedrozo Amaral	CPPg++13.3.0	Error
Aug 3, 2025 23:31	Leonardo Pedrozo Amaral	CPPg++13.3.0	Success	117,558+6.35 RP
Aug 3, 2025 20:43	Leonardo Pedrozo Amaral	CPPg++13.3.0	Success	215,111
Aug 3, 2025 19:37	Leonardo Pedrozo Amaral	CPPg++13.3.0	Success	127,046+3.45 RP
Aug 3, 2025 19:28	Leonardo Pedrozo Amaral	CPPg++13.3.0	Success	132,877+1.13 RP
Aug 3, 2025 19:25	Leonardo Pedrozo Amaral	CPPg++13.3.0	Success	139,401
Jul 31, 2025 17:44	Leonardo Pedrozo Amaral	CPPg++13.3.0	Success	214,116
Jul 31, 2025 14:34	Leonardo Pedrozo Amaral	CPPg++13.3.0	Success	134,911+3.53 RP
Jul 31, 2025 14:20	Leonardo Pedrozo Amaral	CPPg++13.3.0	Success	164,500
Jul 31, 2025 14:16	Leonardo Pedrozo Amaral	CPPg++13.3.0	Success	168,928
Jul 31, 2025 00:18	Leonardo Pedrozo Amaral	CPPg++13.3.0	Success	141,653+0.11 RP
Jul 31, 2025 00:17	Leonardo Pedrozo Amaral	CPPg++13.3.0	Error
Jul 31, 2025 00:16	Leonardo Pedrozo Amaral	CPPg++13.3.0	Error
Jul 31, 2025 00:16	Leonardo Pedrozo Amaral	CPPg++13.3.0	Error
Jul 31, 2025 00:12	Leonardo Pedrozo Amaral	CPPg++13.3.0	Success	141,884+1.92 RP
Jul 31, 2025 00:11	Leonardo Pedrozo Amaral	CPPg++13.3.0	Success	145,868+18.30 RP
Jul 31, 2025 00:10	Leonardo Pedrozo Amaral	CPPg++13.3.0	Error
Jul 31, 2025 00:09	Leonardo Pedrozo Amaral	CPPg++13.3.0	Error
Jul 31, 2025 00:08	Leonardo Pedrozo Amaral	CPPg++13.3.0	Error
Jul 31, 2025 00:07	Leonardo Pedrozo Amaral	CPPg++13.3.0	Success	198,999+0.46 RP
Jul 30, 2025 22:40	Leonardo Pedrozo Amaral	CPPg++13.3.0	Success	200,850+49.79 RP
Jul 28, 2025 20:37	Snehal Sobti	CPPg++13.3.0	Success	492,374+20.31 RP
Jul 27, 2025 05:18	Serendipity1902	CPPg++13.3.0	Error
Jul 27, 2025 05:14	Serendipity1902	CPPg++13.3.0	Error
Jul 27, 2025 05:11	Serendipity1902	CPPg++13.3.0	Error
Jul 27, 2025 05:09	Serendipity1902	CPPg++13.3.0	Error
Jul 27, 2025 05:08	Serendipity1902	CPPg++13.3.0	Error
Jul 27, 2025 05:01	Serendipity1902	CPPg++13.3.0	Success	85,359+96.77 RP
Jul 27, 2025 05:00	Serendipity1902	CPPg++13.3.0	Success	490,605+20.38 RP
Jul 25, 2025 13:50	Hayk Karapetyan	CPPg++13.3.0	Success	295,380
Jul 25, 2025 13:28	Hayk Karapetyan	CPPg++13.3.0	Success	281,664
Jul 25, 2025 11:34	Hayk Karapetyan	CPPg++13.3.0	Success	222,368+24.52 RP
Jul 25, 2025 11:13	Hayk Karapetyan	CPPg++13.3.0	Success	489,080+20.45 RP
Jul 21, 2025 17:09	Aniruddha Deb	CPPg++13.3.0	Success	17,840
Jul 21, 2025 17:05	Aniruddha Deb	CPPg++13.3.0	Error
Jul 21, 2025 14:36	an	CSHARP9.0.7	Success	294,884+33.91 RP
Jul 20, 2025 15:54	Aniruddha Deb	CPPg++13.3.0	Error
Jul 20, 2025 15:53	Aniruddha Deb	CPPg++13.3.0	Error
Jul 20, 2025 14:57	Aniruddha Deb	CPPg++13.3.0	Error
Jul 20, 2025 14:53	Aniruddha Deb	CPPg++13.3.0	Error
Jul 20, 2025 14:52	Aniruddha Deb	CPPg++13.3.0	Error
Jul 20, 2025 14:01	Aniruddha Deb	CPPg++13.3.0	Success	17,794
Jul 20, 2025 12:54	Aniruddha Deb	CPPg++13.3.0	Error

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