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
Apr 27, 2026 16:34	Victor Mercklé	CPPg++14.2.0	Error
Apr 27, 2026 16:28	Victor Mercklé	CPPg++14.2.0	Error
Apr 27, 2026 16:21	Victor Mercklé	CPPg++14.2.0	Success	174,115+39.64 RP
Apr 27, 2026 16:19	Victor Mercklé	CPPg++14.2.0	Error
Apr 27, 2026 16:16	Victor Mercklé	CPPg++14.2.0	Error
Apr 27, 2026 16:11	Victor Mercklé	CPPg++14.2.0	Error
Apr 27, 2026 16:07	Victor Mercklé	CPPg++14.2.0	Error
Apr 27, 2026 16:01	Victor Mercklé	CPPg++14.2.0	Error
Apr 27, 2026 15:56	Victor Mercklé	CPPg++14.2.0	Error
Apr 27, 2026 15:54	limanjun99	CPPg++14.2.0	Success	5,821
Apr 27, 2026 15:37	limanjun99	CPPg++14.2.0	Success	5,716+33.33 RP
Apr 27, 2026 15:26	limanjun99	CPPg++14.2.0	Success	5,827+8.21 RP
Apr 27, 2026 15:23	limanjun99	CPPg++14.2.0	Error
Apr 27, 2026 15:20	limanjun99	CPPg++14.2.0	Success	7,324
Apr 27, 2026 15:17	limanjun99	CPPg++14.2.0	Error
Apr 27, 2026 15:15	limanjun99	CPPg++14.2.0	Error
Apr 27, 2026 15:09	limanjun99	CPPg++14.2.0	Error
Apr 27, 2026 15:04	limanjun99	CPPg++14.2.0	Success	5,855+0.29 RP
Apr 27, 2026 14:52	limanjun99	CPPg++14.2.0	Success	5,856+21.31 RP
Apr 27, 2026 14:45	limanjun99	CPPg++14.2.0	Success	5,930+30.99 RP
Apr 27, 2026 14:29	limanjun99	CPPg++14.2.0	Success	10,432
Apr 27, 2026 14:21	limanjun99	CPPg++14.2.0	Success	6,041+174.31 RP
Apr 27, 2026 14:16	limanjun99	CPPg++14.2.0	Error
Apr 27, 2026 14:01	limanjun99	CPPg++14.2.0	Success	6,752+20.55 RP
Apr 27, 2026 13:58	limanjun99	CPPg++14.2.0	Success	7,006
Apr 27, 2026 13:48	limanjun99	CPPg++14.2.0	Error
Apr 27, 2026 13:46	limanjun99	CPPg++14.2.0	Success	6,939
Apr 27, 2026 13:23	limanjun99	CPPg++14.2.0	Success	9,154
Apr 27, 2026 12:31	limanjun99	CPPg++14.2.0	Success	7,046
Apr 27, 2026 12:21	limanjun99	CPPg++14.2.0	Success	7,039
Apr 27, 2026 12:18	limanjun99	CPPg++14.2.0	Success	7,073
Apr 27, 2026 10:37	Charles Cabergs	CPPclang++18.1.3	Success	35,652
Apr 27, 2026 09:56	Victor Mercklé	CPPg++14.2.0	Success	561,991+17.79 RP
Apr 27, 2026 08:04	olliecrow	CPPg++10.5.0	Success	11,843
Apr 27, 2026 04:04	Mehdi-Dehghan-Fooladi	CPPg++14.2.0	Success	28,781
Apr 27, 2026 01:20	olliecrow	GOgo1.26.2	Success	42,176
Apr 27, 2026 01:18	Charles Cabergs	CPPg++13.3.0	Error
Apr 27, 2026 00:55	olliecrow	RUSTrust-1.95.0	Success	15,012
Apr 27, 2026 00:43	olliecrow	CPPg++10.5.0	Success	11,777
Apr 26, 2026 20:55	Alexander Krivolapov	RUSTrust-1.95.0	Error
Apr 26, 2026 20:39	Alexander Krivolapov	RUSTrust-1.95.0	Error
Apr 26, 2026 20:29	Alexander Krivolapov	RUSTrust-1.95.0	Error
Apr 26, 2026 20:07	Alexander Krivolapov	RUSTrust-1.95.0	Success	348,477
Apr 26, 2026 19:53	TudyM	CPPclang++20.1.2	Success	35,508+20.18 RP
Apr 26, 2026 19:43	olliecrow	RUSTrust-1.95.0	Success	14,920
Apr 26, 2026 19:39	olliecrow	RUSTrust-1.95.0	Success	14,966
Apr 26, 2026 19:25	olliecrow	CPPg++10.5.0	Success	11,804
Apr 26, 2026 18:54	TudyM	CPPg++10.5.0	Success	48,197
Apr 26, 2026 18:53	TudyM	CPPg++10.5.0	Success	38,249+15.38 RP
Apr 26, 2026 18:51	TudyM	CPPg++10.5.0	Success	40,640+103.76 RP
Apr 26, 2026 17:07	olliecrow	GOgo1.26.2	Success	44,093
Apr 26, 2026 16:35	olliecrow	RUSTrust-1.95.0	Success	41,158
Apr 26, 2026 16:30	TudyM	CPPg++10.5.0	Success	70,271+142.31 RP
Apr 26, 2026 12:08	Charles Cabergs	CPPclang++18.1.3	Success	53,070
Apr 26, 2026 08:58	Charles Cabergs	CPPclang++18.1.3	Success	35,684
Apr 26, 2026 07:58	limanjun99	CPPg++14.2.0	Success	6,847+100.32 RP
Apr 26, 2026 07:54	limanjun99	CPPg++14.2.0	Error
Apr 26, 2026 07:50	limanjun99	CPPg++14.2.0	Error
Apr 26, 2026 07:45	limanjun99	CPPg++14.2.0	Error
Apr 26, 2026 07:34	limanjun99	CPPg++14.2.0	Error
Apr 26, 2026 07:30	limanjun99	CPPg++14.2.0	Error
Apr 26, 2026 06:44	limanjun99	CPPg++14.2.0	Success	7,355
Apr 26, 2026 06:43	limanjun99	CPPg++14.2.0	Error
Apr 26, 2026 06:41	limanjun99	CPPg++14.2.0	Success	7,352+2.59 RP
Apr 26, 2026 06:39	limanjun99	CPPg++14.2.0	Success	7,372
Apr 26, 2026 06:36	limanjun99	CPPg++14.2.0	Success	7,366+345.96 RP
Apr 26, 2026 06:34	limanjun99	CPPg++14.2.0	Success	9,885+27.87 RP
Apr 26, 2026 06:32	Charles Cabergs	CPPclang++18.1.3	Success	35,068
Apr 26, 2026 06:19	limanjun99	CPPg++14.2.0	Success	10,165+19.91 RP
Apr 26, 2026 06:09	limanjun99	CPPg++14.2.0	Success	10,375+0.56 RP
Apr 26, 2026 06:05	limanjun99	CPPg++14.2.0	Success	10,526
Apr 26, 2026 06:02	limanjun99	CPPg++14.2.0	Success	10,390
Apr 26, 2026 06:00	limanjun99	CPPg++14.2.0	Success	10,381+234.70 RP
Apr 26, 2026 05:57	limanjun99	CPPg++14.2.0	Error
Apr 26, 2026 05:56	limanjun99	CPPg++14.2.0	Error
Apr 26, 2026 05:54	limanjun99	CPPg++14.2.0	Error
Apr 26, 2026 05:52	limanjun99	CPPg++14.2.0	Error
Apr 26, 2026 05:50	limanjun99	CPPg++14.2.0	Error
Apr 26, 2026 05:42	limanjun99	CPPg++14.2.0	Error
Apr 26, 2026 05:34	limanjun99	CPPg++14.2.0	Error
Apr 26, 2026 05:29	limanjun99	CPPg++14.2.0	Error
Apr 26, 2026 05:24	limanjun99	CPPg++14.2.0	Error
Apr 26, 2026 05:21	limanjun99	CPPg++14.2.0	Success	15,355
Apr 26, 2026 04:41	limanjun99	CPPg++14.2.0	Success	15,160
Apr 26, 2026 00:47	olliecrow	CPPg++10.5.0	Success	11,867
Apr 26, 2026 00:36	Charles Cabergs	CPPclang++18.1.3	Error
Apr 25, 2026 22:10	Charles Cabergs	CPPclang++18.1.3	Success	34,811
Apr 25, 2026 21:30	Charles Cabergs	CPPclang++20.1.2	Success	35,623
Apr 25, 2026 19:10	Charles Cabergs	CPPclang++18.1.3	Success	34,790+1.08 RP
Apr 25, 2026 19:03	olliecrow	RUSTrust-1.95.0	Success	13,986
Apr 25, 2026 16:49	olliecrow	RUSTrust-1.95.0	Success	15,054
Apr 25, 2026 16:37	olliecrow	CPPg++10.5.0	Success	11,836
Apr 25, 2026 09:24	Charles Cabergs	CPPg++13.3.0	Success	34,921+19.23 RP
Apr 25, 2026 07:59	Charles Cabergs	CPPg++12.4.0	Success	40,725
Apr 25, 2026 07:41	olliecrow	RUSTrust-1.94.0	Success	14,068
Apr 25, 2026 04:14	Mehdi-Dehghan-Fooladi	CPPclang++20.1.2	Success	27,595
Apr 25, 2026 04:12	Mehdi-Dehghan-Fooladi	CPPg++10.5.0	Error
Apr 25, 2026 04:11	Charles Cabergs	CPPg++13.3.0	Success	37,993
Apr 25, 2026 04:09	Mehdi-Dehghan-Fooladi	CPPg++14.2.0	Success	29,684
Apr 25, 2026 03:52	Mehdi-Dehghan-Fooladi	CPPg++14.2.0	Error

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