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
Dec 22, 2025 10:05	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 10:05	Rajarshi Basu	CPPg++13.3.0	Success	5,072
Dec 22, 2025 10:04	Rajarshi Basu	CPPg++13.3.0	Success	4,981
Dec 22, 2025 10:03	Rajarshi Basu	CPPg++13.3.0	Success	4,968
Dec 22, 2025 09:54	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 09:53	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 09:49	Rajarshi Basu	CPPg++13.3.0	Success	4,966+10.09 RP
Dec 22, 2025 09:41	Rajarshi Basu	CPPg++13.3.0	Success	4,991+7.60 RP
Dec 22, 2025 09:40	Rajarshi Basu	CPPg++13.3.0	Success	5,091
Dec 22, 2025 09:39	Rajarshi Basu	CPPg++13.3.0	Success	5,135
Dec 22, 2025 09:34	Rajarshi Basu	CPPg++13.3.0	Success	5,035
Dec 22, 2025 09:34	Rajarshi Basu	CPPg++13.3.0	Success	5,024
Dec 22, 2025 09:34	Rajarshi Basu	CPPg++13.3.0	Success	5,049
Dec 22, 2025 09:33	Rajarshi Basu	CPPg++13.3.0	Success	5,052
Dec 22, 2025 09:32	Rajarshi Basu	CPPg++13.3.0	Error
Dec 22, 2025 09:26	Rajarshi Basu	CPPg++13.3.0	Success	8,379
Dec 22, 2025 09:26	Rajarshi Basu	CPPg++13.3.0	Success	7,120
Dec 22, 2025 09:24	Rajarshi Basu	CPPg++13.3.0	Success	6,775
Dec 22, 2025 09:10	Rajarshi Basu	CPPg++13.3.0	Success	5,019
Dec 22, 2025 09:08	Rajarshi Basu	CPPg++13.3.0	Success	5,240
Dec 22, 2025 09:06	Rajarshi Basu	CPPg++13.3.0	Success	5,054
Dec 22, 2025 09:05	Rajarshi Basu	CPPg++13.3.0	Error
Dec 22, 2025 09:01	Rajarshi Basu	CPPg++13.3.0	Success	5,412
Dec 22, 2025 08:11	Rajarshi Basu	CPPg++13.3.0	Success	5,016
Dec 22, 2025 08:11	Rajarshi Basu	CPPg++13.3.0	Success	5,010+9.52 RP
Dec 22, 2025 08:10	Rajarshi Basu	CPPclang++18.1.3	Success	5,155
Dec 22, 2025 08:09	Rajarshi Basu	CPPg++13.3.0	Success	5,070
Dec 22, 2025 08:07	Rajarshi Basu	CPPg++13.3.0	Error
Dec 22, 2025 08:06	Rajarshi Basu	CPPg++13.3.0	Success	5,070
Dec 22, 2025 08:04	Rajarshi Basu	CPPg++13.3.0	Success	5,034+12.16 RP
Dec 22, 2025 08:04	Rajarshi Basu	CPPg++13.3.0	Success	5,076
Dec 22, 2025 08:03	Rajarshi Basu	CPPg++13.3.0	Success	5,891
Dec 22, 2025 08:01	Rajarshi Basu	CPPg++13.3.0	Success	5,792
Dec 22, 2025 07:58	Rajarshi Basu	CPPg++13.3.0	Success	5,977
Dec 22, 2025 07:56	Rajarshi Basu	CPPg++13.3.0	Error
Dec 22, 2025 07:51	xffox	CPPg++13.3.0	Success	521,502
Dec 22, 2025 07:51	Rajarshi Basu	CPPg++13.3.0	Error
Dec 22, 2025 07:48	Rajarshi Basu	CPPg++13.3.0	Error
Dec 22, 2025 07:46	Rajarshi Basu	CPPg++13.3.0	Error
Dec 22, 2025 07:45	Rajarshi Basu	CPPg++13.3.0	Error
Dec 22, 2025 07:44	Rajarshi Basu	CPPg++13.3.0	Error
Dec 22, 2025 07:38	Rajarshi Basu	CPPg++13.3.0	Error
Dec 22, 2025 07:32	Rajarshi Basu	CPPg++13.3.0	Error
Dec 22, 2025 07:30	Rajarshi Basu	CPPg++13.3.0	Error
Dec 22, 2025 07:29	Rajarshi Basu	CPPg++13.3.0	Error
Dec 22, 2025 07:27	Rajarshi Basu	CPPg++13.3.0	Error
Dec 22, 2025 07:25	Rajarshi Basu	CPPg++13.3.0	Error
Dec 22, 2025 07:25	Rajarshi Basu	CPPg++13.3.0	Error
Dec 22, 2025 07:25	Rajarshi Basu	CPPg++13.3.0	Error
Dec 22, 2025 07:23	Rajarshi Basu	CPPg++13.3.0	Error
Dec 22, 2025 07:23	Rajarshi Basu	CPPg++13.3.0	Success	8,956
Dec 22, 2025 07:18	Rajarshi Basu	CPPg++13.3.0	Success	8,851
Dec 22, 2025 07:04	Rajarshi Basu	CPPg++13.3.0	Error
Dec 22, 2025 07:00	Rajarshi Basu	CPPg++13.3.0	Error
Dec 22, 2025 06:57	Rajarshi Basu	CPPg++13.3.0	Success	13,344
Dec 22, 2025 06:53	Rajarshi Basu	CPPg++13.3.0	Success	12,900
Dec 22, 2025 06:43	Rajarshi Basu	CPPg++13.3.0	Success	26,965
Dec 22, 2025 06:43	Rajarshi Basu	CPPg++13.3.0	Success	31,997
Dec 22, 2025 06:42	Rajarshi Basu	CPPg++13.3.0	Success	31,590
Dec 22, 2025 06:42	Rajarshi Basu	CPPg++13.3.0	Success	31,618
Dec 22, 2025 06:42	Rajarshi Basu	CPPg++13.3.0	Success	31,643
Dec 22, 2025 06:42	Rajarshi Basu	CPPg++13.3.0	Success	31,941
Dec 22, 2025 06:42	Rajarshi Basu	CPPg++13.3.0	Success	31,696
Dec 22, 2025 06:38	Rajarshi Basu	CPPg++13.3.0	Error
Dec 22, 2025 06:36	Rajarshi Basu	CPPg++13.3.0	Success	27,430
Dec 22, 2025 06:34	Rajarshi Basu	CPPg++13.3.0	Error
Dec 22, 2025 06:29	Rajarshi Basu	CPPg++13.3.0	Error
Dec 22, 2025 06:27	Rajarshi Basu	CPPg++13.3.0	Error
Dec 22, 2025 06:24	Rajarshi Basu	CPPg++13.3.0	Success	20,812
Dec 22, 2025 06:24	Rajarshi Basu	CPPg++13.3.0	Error
Dec 22, 2025 06:20	Rajarshi Basu	CPPg++13.3.0	Success	21,095
Dec 22, 2025 06:14	Rajarshi Basu	CPPg++13.3.0	Success	9,254
Dec 22, 2025 06:13	Rajarshi Basu	CPPg++13.3.0	Success	9,080
Dec 22, 2025 06:13	Rajarshi Basu	CPPg++13.3.0	Success	9,975
Dec 22, 2025 06:07	Rajarshi Basu	CPPg++13.3.0	Success	10,943
Dec 22, 2025 06:05	Rajarshi Basu	CPPg++13.3.0	Success	11,712
Dec 22, 2025 06:01	Rajarshi Basu	CPPg++13.3.0	Error
Dec 22, 2025 05:58	Rajarshi Basu	CPPg++13.3.0	Error
Dec 22, 2025 05:50	Rajarshi Basu	CPPg++13.3.0	Error
Dec 22, 2025 05:37	Rajarshi Basu	CPPg++13.3.0	Error
Dec 22, 2025 04:34	Josu San Martin	CPPclang++18.1.3	Success	591,196
Dec 22, 2025 04:34	Josu San Martin	CPPg++13.3.0	Error
Dec 22, 2025 04:30	Josu San Martin	CPPg++13.3.0	Success	32,519
Dec 22, 2025 04:28	Josu San Martin	RUSTrust-1.92.0	Success	32,793
Dec 22, 2025 04:27	Josu San Martin	RUSTrust-1.92.0	Error
Dec 22, 2025 04:27	Josu San Martin	RUSTrust-1.92.0	Success	32,193
Dec 22, 2025 03:56	Josu San Martin	RUSTrust-1.92.0	Success	30,375+154.42 RP
Dec 22, 2025 02:24	Josu San Martin	CPPg++13.3.0	Success	57,210+1.06 RP
Dec 22, 2025 02:24	Josu San Martin	CPPg++13.3.0	Success	57,559+5.18 RP
Dec 22, 2025 00:32	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 00:29	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 00:07	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 00:06	zielaj	CPPclang++18.1.3	Error
Dec 22, 2025 00:02	zielaj	CPPclang++18.1.3	Error
Dec 21, 2025 23:48	xffox	CPPg++13.3.0	Error
Dec 21, 2025 23:30	zielaj	CPPclang++18.1.3	Error
Dec 21, 2025 23:28	zielaj	CPPclang++18.1.3	Success	9,556
Dec 21, 2025 23:27	zielaj	CPPclang++18.1.3	Error
Dec 21, 2025 23:20	zielaj	CPPclang++18.1.3	Error
Dec 21, 2025 23:18	zielaj	CPPclang++18.1.3	Error

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