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 15, 2025 05:57	izotoff	GOgo1.25.4	Error
Nov 15, 2025 01:57	izotoff	GOgo1.25.4	Error
Nov 15, 2025 01:53	izotoff	GOgo1.25.4	Error
Nov 15, 2025 01:52	izotoff	GOgo1.25.4	Error
Nov 15, 2025 00:09	izotoff	GOgo1.25.4	Success	91,326+32.04 RP
Nov 14, 2025 23:19	izotoff	GOgo1.25.4	Success	129,105+0.05 RP
Nov 14, 2025 22:43	Aniruddha Deb	CPPg++13.3.0	Success	15,644
Nov 14, 2025 22:41	Aniruddha Deb	CPPg++13.3.0	Success	15,846
Nov 14, 2025 22:41	Aniruddha Deb	CPPg++13.3.0	Success	15,637
Nov 14, 2025 22:12	izotoff	GOgo1.25.4	Success	134,329
Nov 14, 2025 22:08	izotoff	GOgo1.25.4	Success	129,189+33.95 RP
Nov 14, 2025 19:50	izotoff	GOgo1.25.4	Success	279,460
Nov 14, 2025 18:47	izotoff	GOgo1.12.4	Success	237,464
Nov 12, 2025 19:09	izotoff	GOgo1.12.4	Success	236,727
Nov 12, 2025 19:08	izotoff	GOgo1.12.4	Success	236,782
Nov 12, 2025 16:12	Aliaksandr Mikhei	CPPg++13.3.0	Success	58,918+11.34 RP
Nov 12, 2025 16:11	Aliaksandr Mikhei	CPPg++13.3.0	Success	96,478
Nov 12, 2025 16:10	Aliaksandr Mikhei	CPPg++13.3.0	Success	127,129
Nov 12, 2025 16:09	Aliaksandr Mikhei	CPPg++13.3.0	Success	126,315
Nov 12, 2025 16:01	Aliaksandr Mikhei	CPPg++13.3.0	Success	128,424
Nov 12, 2025 16:00	Aliaksandr Mikhei	CPPg++13.3.0	Success	128,696
Nov 12, 2025 15:57	Aliaksandr Mikhei	CPPg++13.3.0	Success	127,644
Nov 12, 2025 15:48	Aliaksandr Mikhei	CPPg++13.3.0	Success	63,136+48.94 RP
Nov 12, 2025 15:46	Aliaksandr Mikhei	CPPg++13.3.0	Success	140,054
Nov 12, 2025 15:40	Aliaksandr Mikhei	CPPg++13.3.0	Error
Nov 12, 2025 15:27	Aliaksandr Mikhei	CPPg++13.3.0	Success	184,351
Nov 12, 2025 15:26	Aliaksandr Mikhei	CPPg++13.3.0	Error
Nov 12, 2025 15:20	Aliaksandr Mikhei	CPPg++13.3.0	Success	91,364+11.20 RP
Nov 12, 2025 15:19	Aliaksandr Mikhei	CPPg++13.3.0	Success	105,257
Nov 12, 2025 15:18	Aliaksandr Mikhei	CPPg++13.3.0	Success	103,380
Nov 12, 2025 15:02	Aliaksandr Mikhei	CPPg++13.3.0	Success	101,783+1.01 RP
Nov 12, 2025 14:59	Aliaksandr Mikhei	CPPg++13.3.0	Success	102,845+61.91 RP
Nov 12, 2025 14:50	Aliaksandr Mikhei	CPPg++13.3.0	Success	283,093+10.26 RP
Nov 12, 2025 14:49	Aliaksandr Mikhei	CPPg++13.3.0	Error
Nov 12, 2025 14:41	Aliaksandr Mikhei	CPPg++13.3.0	Error
Nov 12, 2025 14:39	Aliaksandr Mikhei	CPPg++13.3.0	Error
Nov 12, 2025 14:35	Aliaksandr Mikhei	CPPg++13.3.0	Success	399,037+4.80 RP
Nov 12, 2025 14:34	Aliaksandr Mikhei	CPPg++13.3.0	Error
Nov 12, 2025 14:32	Aliaksandr Mikhei	CPPg++13.3.0	Error
Nov 12, 2025 14:21	Aliaksandr Mikhei	CPPg++13.3.0	Error
Nov 12, 2025 14:19	Aliaksandr Mikhei	CPPg++13.3.0	Error
Nov 12, 2025 14:10	Aliaksandr Mikhei	CPPg++13.3.0	Error
Nov 12, 2025 14:09	Aliaksandr Mikhei	CPPg++13.3.0	Error
Nov 12, 2025 14:04	Aliaksandr Mikhei	CPPg++13.3.0	Error
Nov 12, 2025 14:01	Aliaksandr Mikhei	CPPg++13.3.0	Error
Nov 12, 2025 13:57	Aliaksandr Mikhei	CPPg++13.3.0	Success	493,688+20.26 RP
Nov 12, 2025 08:29	Aniruddha Deb	CPPg++13.3.0	Error
Nov 12, 2025 08:28	Aniruddha Deb	CPPg++13.3.0	Success	14,818
Nov 12, 2025 08:26	Aniruddha Deb	CPPg++13.3.0	Success	14,792
Nov 12, 2025 08:24	Aniruddha Deb	CPPg++13.3.0	Error
Nov 12, 2025 08:21	Aniruddha Deb	CPPg++13.3.0	Error
Nov 12, 2025 08:20	Aniruddha Deb	CPPg++13.3.0	Error
Nov 12, 2025 08:19	Aniruddha Deb	CPPg++13.3.0	Error
Nov 12, 2025 08:16	Aniruddha Deb	CPPg++13.3.0	Success	14,783
Nov 12, 2025 08:14	Aniruddha Deb	CPPg++13.3.0	Error
Nov 12, 2025 08:12	Aniruddha Deb	CPPg++13.3.0	Error
Nov 12, 2025 08:04	Aniruddha Deb	CPPg++13.3.0	Error
Nov 12, 2025 08:03	Aniruddha Deb	CPPg++13.3.0	Success	14,812
Nov 12, 2025 08:02	Aniruddha Deb	CPPg++13.3.0	Error
Nov 12, 2025 08:00	Aniruddha Deb	CPPg++13.3.0	Error
Nov 12, 2025 07:58	Aniruddha Deb	CPPg++13.3.0	Error
Nov 12, 2025 07:58	Aniruddha Deb	CPPg++13.3.0	Success	14,810
Nov 12, 2025 07:56	Aniruddha Deb	CPPg++13.3.0	Error
Nov 12, 2025 07:54	Aniruddha Deb	CPPg++13.3.0	Error
Nov 12, 2025 07:52	Aniruddha Deb	CPPg++13.3.0	Error
Nov 12, 2025 07:52	Aniruddha Deb	CPPg++13.3.0	Error
Nov 12, 2025 07:50	Aniruddha Deb	CPPg++13.3.0	Error
Nov 12, 2025 07:49	Aniruddha Deb	CPPg++13.3.0	Success	14,788
Nov 12, 2025 07:47	Aniruddha Deb	CPPg++13.3.0	Error
Nov 12, 2025 07:46	Aniruddha Deb	CPPg++13.3.0	Error
Nov 12, 2025 07:43	Aniruddha Deb	CPPg++13.3.0	Error
Nov 12, 2025 07:41	Aniruddha Deb	CPPg++13.3.0	Success	14,818
Nov 12, 2025 07:39	Aniruddha Deb	CPPg++13.3.0	Error
Nov 12, 2025 07:38	Aniruddha Deb	CPPg++13.3.0	Error
Nov 12, 2025 07:36	Aniruddha Deb	CPPg++13.3.0	Success	14,807
Nov 12, 2025 07:28	Aniruddha Deb	CPPg++13.3.0	Error
Nov 12, 2025 07:27	Aniruddha Deb	CPPg++13.3.0	Error
Nov 12, 2025 07:23	Aniruddha Deb	CPPg++13.3.0	Error
Nov 12, 2025 07:22	Aniruddha Deb	CPPg++13.3.0	Error
Nov 12, 2025 07:20	Aniruddha Deb	CPPg++13.3.0	Success	14,809
Nov 12, 2025 07:14	Aniruddha Deb	CPPg++13.3.0	Error
Nov 12, 2025 07:12	Aniruddha Deb	CPPg++13.3.0	Error
Nov 12, 2025 07:12	Aniruddha Deb	CPPg++13.3.0	Error
Nov 12, 2025 07:11	Aniruddha Deb	CPPg++13.3.0	Success	14,782
Nov 12, 2025 07:07	Aniruddha Deb	CPPg++13.3.0	Error
Nov 12, 2025 07:06	Aniruddha Deb	CPPg++13.3.0	Error
Nov 12, 2025 07:04	Aniruddha Deb	CPPg++13.3.0	Success	14,729
Nov 12, 2025 07:02	Aniruddha Deb	CPPg++13.3.0	Error
Nov 12, 2025 07:00	Aniruddha Deb	CPPg++13.3.0	Error
Nov 12, 2025 06:59	Aniruddha Deb	CPPg++13.3.0	Error
Nov 12, 2025 06:53	Aniruddha Deb	CPPg++13.3.0	Success	14,815
Nov 12, 2025 06:51	Aniruddha Deb	CPPg++13.3.0	Success	14,810
Nov 12, 2025 06:50	Aniruddha Deb	CPPg++13.3.0	Error
Nov 12, 2025 06:49	Aniruddha Deb	CPPg++13.3.0	Error
Nov 12, 2025 06:45	Aniruddha Deb	CPPg++13.3.0	Error
Nov 12, 2025 06:43	Aniruddha Deb	CPPg++13.3.0	Error
Nov 12, 2025 06:40	Aniruddha Deb	CPPg++13.3.0	Error
Nov 12, 2025 06:36	Aniruddha Deb	CPPg++13.3.0	Error
Nov 12, 2025 06:35	Aniruddha Deb	CPPg++13.3.0	Error
Nov 12, 2025 06:32	Aniruddha Deb	CPPg++13.3.0	Error

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