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
May 12, 2026 01:40	Victor Mercklé	CPPg++13.3.0	Success	6,852
May 12, 2026 01:38	Victor Mercklé	CPPg++13.3.0	Success	6,671
May 12, 2026 01:30	Victor Mercklé	CPPg++13.3.0	Success	6,763
May 12, 2026 01:24	Victor Mercklé	CPPg++13.3.0	Success	6,667
May 12, 2026 01:20	Victor Mercklé	CPPg++13.3.0	Success	6,658
May 12, 2026 01:16	Victor Mercklé	CPPg++13.3.0	Success	6,672
May 12, 2026 01:14	Victor Mercklé	CPPg++13.3.0	Success	6,646
May 12, 2026 01:12	Victor Mercklé	CPPg++13.3.0	Success	6,678
May 12, 2026 00:51	Victor Mercklé	CPPg++13.3.0	Success	6,642
May 12, 2026 00:45	Victor Mercklé	CPPg++13.3.0	Success	6,670
May 12, 2026 00:39	Victor Mercklé	CPPg++13.3.0	Success	6,637
May 12, 2026 00:31	Victor Mercklé	CPPg++13.3.0	Success	6,639
May 12, 2026 00:27	Victor Mercklé	CPPg++13.3.0	Success	6,654
May 12, 2026 00:23	Victor Mercklé	CPPg++13.3.0	Success	7,302
May 12, 2026 00:07	Victor Mercklé	CPPg++13.3.0	Success	6,647
May 11, 2026 23:59	Victor Mercklé	CPPg++13.3.0	Success	6,637+2.04 RP
May 11, 2026 22:46	Victor Mercklé	CPPg++13.3.0	Success	6,862
May 11, 2026 22:41	Victor Mercklé	CPPg++13.3.0	Success	6,651
May 11, 2026 22:32	Victor Mercklé	CPPg++13.3.0	Success	6,647
May 11, 2026 22:27	Victor Mercklé	CPPg++13.3.0	Success	6,659
May 11, 2026 22:22	Victor Mercklé	CPPg++13.3.0	Success	6,646+3.61 RP
May 11, 2026 22:16	Victor Mercklé	CPPg++13.3.0	Success	6,662+3.82 RP
May 11, 2026 21:43	Victor Mercklé	CPPg++13.3.0	Success	6,684
May 11, 2026 21:39	Victor Mercklé	CPPg++13.3.0	Success	6,701
May 11, 2026 20:32	Pavel Skripkin	RUSTrust-1.95.0	Success	13,947
May 11, 2026 20:30	Pavel Skripkin	RUSTrust-1.95.0	Error
May 11, 2026 20:29	Pavel Skripkin	RUSTrust-1.95.0	Success	13,828
May 11, 2026 20:26	Pavel Skripkin	RUSTrust-1.95.0	Error
May 11, 2026 20:04	Victor Mercklé	CPPg++13.3.0	Success	6,679+72.93 RP
May 11, 2026 19:16	Pavel Skripkin	RUSTrust-1.95.0	Error
May 11, 2026 19:11	Pavel Skripkin	RUSTrust-1.95.0	Success	13,338+12.55 RP
May 11, 2026 18:56	Pavel Skripkin	RUSTrust-1.95.0	Success	14,015
May 11, 2026 18:55	Pavel Skripkin	RUSTrust-1.95.0	Success	14,387
May 11, 2026 18:42	Pavel Skripkin	RUSTrust-1.95.0	Success	17,631
May 11, 2026 17:16	Victor Mercklé	CPPg++13.3.0	Success	7,021+198.21 RP
May 11, 2026 17:08	Victor Mercklé	CPPg++13.3.0	Success	8,244
May 11, 2026 17:00	Victor Mercklé	CPPg++12.4.0	Success	8,384
May 11, 2026 16:34	Victor Mercklé	CPPg++13.3.0	Success	8,270
May 11, 2026 16:30	Victor Mercklé	CPPg++13.3.0	Success	8,178
May 11, 2026 16:22	Victor Mercklé	CPPg++13.3.0	Success	8,221
May 11, 2026 16:08	Victor Mercklé	CPPg++13.3.0	Success	8,203
May 11, 2026 16:04	Victor Mercklé	CPPg++13.3.0	Success	8,199
May 11, 2026 15:58	Victor Mercklé	CPPg++13.3.0	Success	8,382
May 11, 2026 15:14	Victor Mercklé	CPPg++13.3.0	Success	8,156+136.65 RP
May 11, 2026 12:15	Victor Mercklé	CPPg++13.3.0	Success	9,179+194.03 RP
May 11, 2026 11:22	Victor Mercklé	CPPg++13.3.0	Success	11,168+47.96 RP
May 11, 2026 09:12	Victor Mercklé	CPPg++13.3.0	Success	11,800+16.34 RP
May 11, 2026 09:07	Victor Mercklé	CPPg++13.3.0	Success	12,656
May 11, 2026 08:52	Victor Mercklé	CPPg++13.3.0	Success	12,592
May 11, 2026 08:35	Victor Mercklé	CPPg++13.3.0	Success	12,032+22.25 RP
May 11, 2026 08:03	Victor Mercklé	CPPg++14.2.0	Success	72,272
May 11, 2026 08:01	Victor Mercklé	CPPg++13.3.0	Success	12,423
May 11, 2026 07:59	Victor Mercklé	CPPg++13.3.0	Success	12,363+97.83 RP
May 11, 2026 07:55	Victor Mercklé	CPPg++13.3.0	Success	14,064+7.55 RP
May 11, 2026 07:51	Victor Mercklé	CPPg++14.2.0	Success	61,185
May 11, 2026 07:47	Victor Mercklé	CPPg++13.3.0	Success	14,215+7.35 RP
May 11, 2026 07:38	Victor Mercklé	CPPclang++18.1.3	Success	14,785
May 11, 2026 07:32	Victor Mercklé	CPPg++13.3.0	Success	14,365+1.60 RP
May 11, 2026 07:26	Victor Mercklé	CPPg++14.2.0	Success	14,398+1.06 RP
May 11, 2026 07:18	Victor Mercklé	CPPg++14.2.0	Success	14,569
May 11, 2026 06:51	Victor Mercklé	CPPg++14.2.0	Success	59,314
May 11, 2026 06:44	Victor Mercklé	CPPg++14.2.0	Success	72,948
May 11, 2026 06:26	Victor Mercklé	CPPg++14.2.0	Success	101,263
May 10, 2026 09:56	Aleksei Shahoika	CPPclang++18.1.3	Success	11,953
May 10, 2026 09:33	Aleksei Shahoika	CPPclang++18.1.3	Success	11,345+11.12 RP
May 10, 2026 00:32	Aleksei Shahoika	CPPclang++18.1.3	Success	11,737
May 10, 2026 00:09	Aleksei Shahoika	CPPclang++18.1.3	Success	11,615
May 10, 2026 00:05	Andrii Stolitnii	CPPg++10.5.0	Success	173,189+6.09 RP
May 10, 2026 00:04	Andrii Stolitnii	CPPg++10.5.0	Success	193,599+51.65 RP
May 9, 2026 23:13	Aleksei Shahoika	CPPclang++18.1.3	Success	11,604
May 9, 2026 23:01	Aleksei Shahoika	CPPclang++18.1.3	Success	11,490+106.38 RP
May 9, 2026 22:42	Aleksei Shahoika	CPPclang++18.1.3	Success	13,090+15.49 RP
May 9, 2026 22:21	Aleksei Shahoika	CPPclang++18.1.3	Success	13,406
May 9, 2026 22:11	Aleksei Shahoika	CPPclang++18.1.3	Success	13,364
May 9, 2026 22:01	Aleksei Shahoika	CPPclang++18.1.3	Success	14,494
May 9, 2026 21:55	Aleksei Shahoika	CPPclang++18.1.3	Success	13,361+19.11 RP
May 9, 2026 21:38	Aleksei Shahoika	CPPclang++18.1.3	Success	13,711+20.07 RP
May 9, 2026 21:30	Aleksei Shahoika	CPPclang++18.1.3	Success	14,099+8.40 RP
May 9, 2026 21:21	Aleksei Shahoika	CPPclang++18.1.3	Success	14,268+16.87 RP
May 9, 2026 21:13	Aleksei Shahoika	CPPclang++18.1.3	Success	14,695
May 9, 2026 21:07	Aleksei Shahoika	CPPclang++18.1.3	Success	14,620+65.30 RP
May 9, 2026 20:52	Aleksei Shahoika	CPPclang++18.1.3	Success	16,163+10.35 RP
May 9, 2026 20:46	Aleksei Shahoika	CPPclang++18.1.3	Success	16,438+46.07 RP
May 9, 2026 20:34	Aleksei Shahoika	CPPclang++18.1.3	Success	17,785+135.89 RP
May 9, 2026 20:22	Aleksei Shahoika	CPPclang++18.1.3	Success	23,453+114.74 RP
May 9, 2026 20:19	Aleksei Shahoika	CPPclang++18.1.3	Error
May 9, 2026 20:09	Aleksei Shahoika	CPPclang++18.1.3	Success	32,088+22.10 RP
May 6, 2026 19:40	olliecrow	CPPclang++18.1.3	Success	13,222
May 6, 2026 18:58	olliecrow	CPPg++10.5.0	Error
May 6, 2026 08:28	olliecrow	CPPclang++18.1.3	Success	11,020
May 6, 2026 08:22	olliecrow	CPPclang++18.1.3	Error
May 6, 2026 05:31	olliecrow	RUSTrust-1.95.0	Success	13,757
May 5, 2026 21:39	olliecrow	GOgo1.26.2	Success	10,852
May 5, 2026 21:16	olliecrow	CPPclang++18.1.3	Success	10,947
May 5, 2026 20:40	olliecrow	RUSTrust-1.95.0	Success	13,877
May 5, 2026 17:18	olliecrow	CPPclang++18.1.3	Success	10,955
May 5, 2026 17:04	olliecrow	CPPg++13.3.0	Success	11,955
May 5, 2026 14:23	olliecrow	RUSTrust-1.95.0	Success	13,731
May 5, 2026 14:05	olliecrow	RUSTrust-1.95.0	Success	15,280
May 5, 2026 13:49	olliecrow	RUSTrust-1.95.0	Error

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