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
Jan 10, 2026 17:29	zielaj	CPPclang++18.1.3	Error
Jan 10, 2026 17:26	zielaj	CPPclang++18.1.3	Error
Jan 10, 2026 17:25	zielaj	CPPclang++18.1.3	Error
Jan 10, 2026 17:17	zielaj	CPPclang++18.1.3	Error
Jan 10, 2026 17:15	zielaj	CPPclang++18.1.3	Error
Jan 10, 2026 17:14	zielaj	CPPclang++18.1.3	Error
Jan 10, 2026 17:13	zielaj	CPPclang++18.1.3	Error
Jan 10, 2026 17:11	zielaj	CPPclang++18.1.3	Error
Jan 10, 2026 17:07	Josu San Martin	CPPg++13.3.0	Success	4,783
Jan 10, 2026 17:06	zielaj	CPPclang++18.1.3	Error
Jan 10, 2026 17:04	zielaj	CPPclang++18.1.3	Error
Jan 10, 2026 17:02	zielaj	CPPclang++18.1.3	Error
Jan 10, 2026 17:01	zielaj	CPPclang++18.1.3	Error
Jan 10, 2026 16:59	zielaj	CPPclang++18.1.3	Error
Jan 10, 2026 16:58	zielaj	CPPclang++18.1.3	Error
Jan 10, 2026 16:57	zielaj	CPPclang++18.1.3	Error
Jan 10, 2026 16:56	Josu San Martin	CPPg++13.3.0	Success	4,482
Jan 10, 2026 14:47	Josu San Martin	CPPg++13.3.0	Success	4,635
Jan 10, 2026 14:45	Josu San Martin	CPPg++13.3.0	Success	4,479+14.36 RP
Jan 10, 2026 14:41	Josu San Martin	CPPg++13.3.0	Success	4,508+64.50 RP
Jan 10, 2026 14:23	Pavel Skripkin	RUSTrust-1.92.0	Success	63,468
Jan 10, 2026 14:21	Pavel Skripkin	RUSTrust-1.92.0	Error
Jan 10, 2026 14:20	Pavel Skripkin	RUSTrust-1.92.0	Success	62,861
Jan 10, 2026 14:16	Josu San Martin	CPPg++13.3.0	Success	4,649
Jan 10, 2026 14:12	Pavel Skripkin	RUSTrust-1.92.0	Error
Jan 10, 2026 14:11	Pavel Skripkin	RUSTrust-1.92.0	Error
Jan 10, 2026 14:09	Pavel Skripkin	RUSTrust-1.92.0	Success	68,618
Jan 10, 2026 14:08	Pavel Skripkin	RUSTrust-1.92.0	Success	62,020
Jan 10, 2026 14:07	Pavel Skripkin	RUSTrust-1.92.0	Error
Jan 10, 2026 13:58	Pavel Skripkin	RUSTrust-1.92.0	Success	70,058
Jan 10, 2026 13:53	Pavel Skripkin	RUSTrust-1.92.0	Success	74,105
Jan 10, 2026 13:39	Josu San Martin	CPPg++13.3.0	Success	4,657
Jan 10, 2026 13:34	Pavel Skripkin	RUSTrust-1.92.0	Success	82,906
Jan 10, 2026 13:14	Josu San Martin	CPPg++13.3.0	Success	4,643+82.10 RP
Jan 10, 2026 13:13	Josu San Martin	CPPg++13.3.0	Success	4,827+215.01 RP
Jan 10, 2026 13:10	Josu San Martin	CPPg++13.3.0	Success	6,880
Jan 10, 2026 12:57	Pavel Skripkin	RUSTrust-1.92.0	Success	70,511
Jan 10, 2026 12:54	Pavel Skripkin	RUSTrust-1.92.0	Success	67,895
Jan 10, 2026 10:13	Pavel Skripkin	RUSTrust-1.92.0	Success	60,767+3.90 RP
Jan 10, 2026 10:11	Pavel Skripkin	RUSTrust-1.92.0	Error
Jan 10, 2026 07:14	Josu San Martin	CPPg++13.3.0	Error
Jan 10, 2026 07:07	Josu San Martin	RUSTrust-1.92.0	Success	5,630+36.16 RP
Jan 10, 2026 07:03	Josu San Martin	RUSTrust-1.92.0	Success	5,807
Jan 10, 2026 06:58	Josu San Martin	CPPg++13.3.0	Success	5,519
Jan 10, 2026 06:58	Josu San Martin	CPPg++13.3.0	Success	5,928
Jan 10, 2026 06:57	Josu San Martin	CPPg++13.3.0	Success	9,221
Jan 10, 2026 06:57	Josu San Martin	CPPg++13.3.0	Success	9,150
Jan 10, 2026 06:49	Josu San Martin	CPPg++13.3.0	Success	5,786
Jan 10, 2026 06:47	Josu San Martin	CPPg++13.3.0	Error
Jan 10, 2026 06:46	Josu San Martin	CPPg++13.3.0	Success	6,426
Jan 10, 2026 06:46	Josu San Martin	CPPg++13.3.0	Success	5,403
Jan 10, 2026 06:43	Josu San Martin	CPPg++13.3.0	Success	5,567
Jan 10, 2026 06:38	Josu San Martin	CPPg++13.3.0	Success	5,386+72.23 RP
Jan 10, 2026 06:32	Josu San Martin	CPPg++13.3.0	Success	5,604+3.50 RP
Jan 10, 2026 06:31	Josu San Martin	CPPg++13.3.0	Success	5,829
Jan 10, 2026 06:31	Josu San Martin	CPPg++13.3.0	Success	5,657
Jan 10, 2026 06:24	Josu San Martin	CPPg++13.3.0	Success	5,639
Jan 10, 2026 06:24	Josu San Martin	CPPg++13.3.0	Success	5,615+2.22 RP
Jan 10, 2026 06:23	Josu San Martin	RUSTrust-1.92.0	Success	6,440
Jan 10, 2026 02:31	zielaj	CPPclang++18.1.3	Error
Jan 10, 2026 02:30	zielaj	CPPclang++18.1.3	Error
Jan 10, 2026 02:27	zielaj	CPPclang++18.1.3	Error
Jan 10, 2026 02:19	zielaj	CPPclang++18.1.3	Error
Jan 10, 2026 02:15	zielaj	CPPclang++18.1.3	Success	3,150
Jan 10, 2026 02:13	zielaj	CPPclang++18.1.3	Success	3,156
Jan 10, 2026 02:11	zielaj	CPPclang++18.1.3	Error
Jan 10, 2026 02:09	zielaj	CPPclang++18.1.3	Error
Jan 10, 2026 02:07	zielaj	CPPclang++18.1.3	Error
Jan 10, 2026 02:06	zielaj	CPPclang++18.1.3	Error
Jan 10, 2026 02:00	Josu San Martin	CPPg++13.3.0	Success	5,622+2.84 RP
Jan 10, 2026 01:59	Josu San Martin	CPPg++13.3.0	Success	14,431
Jan 10, 2026 01:54	Josu San Martin	RUSTrust-1.92.0	Success	9,715
Jan 10, 2026 01:50	Josu San Martin	RUSTrust-1.92.0	Success	8,821
Jan 10, 2026 01:48	Josu San Martin	RUSTrust-1.92.0	Error
Jan 10, 2026 01:45	Josu San Martin	CPPg++13.3.0	Success	5,631+31.90 RP
Jan 10, 2026 01:38	Josu San Martin	RUSTrust-1.92.0	Success	6,147
Jan 10, 2026 01:38	Josu San Martin	RUSTrust-1.92.0	Success	6,027
Jan 10, 2026 01:38	Josu San Martin	RUSTrust-1.92.0	Success	6,164
Jan 10, 2026 01:38	Josu San Martin	RUSTrust-1.92.0	Success	6,148
Jan 10, 2026 01:38	Josu San Martin	RUSTrust-1.92.0	Success	6,101
Jan 10, 2026 01:34	Josu San Martin	CPPg++13.3.0	Success	6,297
Jan 10, 2026 01:32	zielaj	CPPclang++18.1.3	Error
Jan 10, 2026 01:31	Josu San Martin	RUSTrust-1.92.0	Success	6,017
Jan 10, 2026 01:31	zielaj	CPPclang++18.1.3	Error
Jan 10, 2026 01:30	Josu San Martin	RUSTrust-1.92.0	Success	6,214
Jan 10, 2026 01:30	Josu San Martin	RUSTrust-1.92.0	Success	7,139
Jan 10, 2026 01:30	Josu San Martin	RUSTrust-1.92.0	Success	8,876
Jan 10, 2026 01:24	Josu San Martin	CPPg++13.3.0	Success	5,734+3.94 RP
Jan 10, 2026 01:23	Josu San Martin	RUSTrust-1.92.0	Error
Jan 10, 2026 01:23	Josu San Martin	RUSTrust-1.92.0	Error
Jan 10, 2026 01:23	Josu San Martin	RUSTrust-1.92.0	Error
Jan 10, 2026 01:18	Josu San Martin	RUSTrust-1.92.0	Error
Jan 10, 2026 01:17	Josu San Martin	RUSTrust-1.92.0	Success	10,408
Jan 10, 2026 01:14	Josu San Martin	RUSTrust-1.92.0	Success	6,004
Jan 10, 2026 00:56	Josu San Martin	RUSTrust-1.92.0	Success	106,039
Jan 10, 2026 00:56	Josu San Martin	CPPg++13.3.0	Success	6,912
Jan 10, 2026 00:54	Josu San Martin	CPPg++13.3.0	Success	5,810
Jan 10, 2026 00:52	Josu San Martin	CPPg++13.3.0	Success	6,410
Jan 10, 2026 00:52	Josu San Martin	CPPg++13.3.0	Success	7,405
Jan 10, 2026 00:51	Josu San Martin	CPPg++13.3.0	Success	6,990

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