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 19, 2025 19:00	Rajarshi Basu	CPPg++13.3.0	Error
Dec 19, 2025 18:59	Rajarshi Basu	CPPg++13.3.0	Error
Dec 19, 2025 18:24	Rajarshi Basu	CPPg++13.3.0	Success	6,024
Dec 19, 2025 18:24	Rajarshi Basu	CPPg++13.3.0	Error
Dec 19, 2025 18:23	Rajarshi Basu	CPPg++13.3.0	Success	5,992
Dec 19, 2025 18:20	Rajarshi Basu	CPPg++13.3.0	Success	6,098
Dec 19, 2025 18:16	Rajarshi Basu	CPPg++13.3.0	Success	6,005
Dec 19, 2025 18:15	Rajarshi Basu	CPPg++13.3.0	Success	6,017
Dec 19, 2025 18:11	Rajarshi Basu	CPPg++13.3.0	Success	5,990+10.80 RP
Dec 19, 2025 18:09	Rajarshi Basu	CPPg++13.3.0	Success	6,217
Dec 19, 2025 18:08	Rajarshi Basu	CPPg++13.3.0	Success	6,062
Dec 19, 2025 18:03	Rajarshi Basu	CPPg++13.3.0	Success	7,068
Dec 19, 2025 18:02	Rajarshi Basu	CPPg++13.3.0	Success	7,086
Dec 19, 2025 18:02	Rajarshi Basu	CPPg++13.3.0	Success	7,079
Dec 19, 2025 17:59	Rajarshi Basu	CPPg++13.3.0	Success	6,859
Dec 19, 2025 17:36	Rajarshi Basu	CPPg++13.3.0	Success	6,503
Dec 19, 2025 17:35	Rajarshi Basu	CPPg++13.3.0	Success	7,399
Dec 19, 2025 17:33	Rajarshi Basu	CPPg++13.3.0	Success	6,624
Dec 19, 2025 17:33	Rajarshi Basu	CPPg++13.3.0	Success	6,533
Dec 19, 2025 17:32	Rajarshi Basu	CPPg++13.3.0	Success	6,553
Dec 19, 2025 17:32	Rajarshi Basu	CPPg++13.3.0	Success	6,555
Dec 19, 2025 17:32	Rajarshi Basu	CPPg++13.3.0	Success	6,433
Dec 19, 2025 17:32	Rajarshi Basu	CPPg++13.3.0	Success	6,537
Dec 19, 2025 17:00	Rajarshi Basu	CPPg++13.3.0	Success	6,756
Dec 19, 2025 16:59	Rajarshi Basu	CPPg++13.3.0	Success	6,748
Dec 19, 2025 16:59	Rajarshi Basu	CPPg++13.3.0	Success	6,707
Dec 19, 2025 16:57	Rajarshi Basu	CPPg++13.3.0	Success	15,539
Dec 19, 2025 16:57	Rajarshi Basu	CPPg++13.3.0	Success	8,844
Dec 19, 2025 16:55	Rajarshi Basu	CPPg++13.3.0	Success	10,136
Dec 19, 2025 16:54	Rajarshi Basu	CPPg++13.3.0	Success	9,975
Dec 19, 2025 16:53	Rajarshi Basu	CPPg++13.3.0	Success	10,235
Dec 19, 2025 15:41	Rajarshi Basu	CPPg++13.3.0	Success	14,975
Dec 19, 2025 15:37	Rajarshi Basu	CPPg++13.3.0	Success	6,532
Dec 19, 2025 15:34	Rajarshi Basu	CPPg++13.3.0	Success	6,859
Dec 19, 2025 15:34	Rajarshi Basu	CPPg++13.3.0	Success	6,870
Dec 19, 2025 15:34	Rajarshi Basu	CPPg++13.3.0	Success	6,936
Dec 19, 2025 15:34	Rajarshi Basu	CPPg++13.3.0	Success	7,415
Dec 19, 2025 15:34	Rajarshi Basu	CPPg++13.3.0	Success	7,230
Dec 19, 2025 15:34	Rajarshi Basu	CPPg++13.3.0	Success	7,931
Dec 19, 2025 15:33	Rajarshi Basu	CPPg++13.3.0	Success	7,428
Dec 19, 2025 15:33	Rajarshi Basu	CPPg++13.3.0	Success	7,071
Dec 19, 2025 15:33	Rajarshi Basu	CPPg++13.3.0	Success	7,110
Dec 19, 2025 15:33	Rajarshi Basu	CPPg++13.3.0	Success	6,729
Dec 19, 2025 15:33	Rajarshi Basu	CPPg++13.3.0	Success	6,778
Dec 19, 2025 15:30	Rajarshi Basu	CPPg++13.3.0	Success	6,806
Dec 19, 2025 15:29	Rajarshi Basu	CPPg++13.3.0	Success	7,793
Dec 19, 2025 15:29	Rajarshi Basu	CPPg++13.3.0	Success	7,483
Dec 19, 2025 15:29	Rajarshi Basu	CPPg++13.3.0	Success	7,065
Dec 19, 2025 15:28	Rajarshi Basu	CPPg++13.3.0	Success	7,599
Dec 19, 2025 15:28	Rajarshi Basu	CPPg++13.3.0	Success	7,897
Dec 19, 2025 15:28	Rajarshi Basu	CPPg++13.3.0	Success	8,473
Dec 19, 2025 15:28	Rajarshi Basu	CPPg++13.3.0	Success	9,832
Dec 19, 2025 15:27	Rajarshi Basu	CPPg++13.3.0	Success	10,633
Dec 19, 2025 15:24	Rajarshi Basu	CPPg++13.3.0	Success	11,015
Dec 19, 2025 15:12	Rajarshi Basu	CPPg++13.3.0	Success	7,243
Dec 19, 2025 13:43	Rajarshi Basu	CPPg++13.3.0	Success	6,029+67.31 RP
Dec 19, 2025 11:40	Rajarshi Basu	CPPg++13.3.0	Success	10,783
Dec 19, 2025 11:31	Rajarshi Basu	CPPg++13.3.0	Success	7,505
Dec 19, 2025 11:29	Rajarshi Basu	CPPg++13.3.0	Success	6,284+2.02 RP
Dec 19, 2025 11:28	Rajarshi Basu	CPPg++13.3.0	Success	6,310
Dec 19, 2025 10:49	Rajarshi Basu	CPPg++13.3.0	Error
Dec 19, 2025 10:06	Rajarshi Basu	CPPg++13.3.0	Error
Dec 19, 2025 10:02	Rajarshi Basu	CPPg++13.3.0	Success	6,703
Dec 19, 2025 09:42	Rajarshi Basu	CPPg++13.3.0	Success	6,747
Dec 19, 2025 09:41	Rajarshi Basu	CPPg++13.3.0	Error
Dec 19, 2025 09:30	Rajarshi Basu	CPPg++13.3.0	Error
Dec 19, 2025 09:30	Rajarshi Basu	CPPg++13.3.0	Success	8,322
Dec 19, 2025 09:28	Rajarshi Basu	CPPg++13.3.0	Success	6,292+22.17 RP
Dec 19, 2025 09:26	Rajarshi Basu	CPPg++13.3.0	Success	6,381+262.52 RP
Dec 19, 2025 09:20	Rajarshi Basu	CPPg++13.3.0	Error
Dec 19, 2025 09:16	Rajarshi Basu	CPPg++13.3.0	Success	10,949
Dec 19, 2025 09:15	Rajarshi Basu	CPPg++13.3.0	Error
Dec 19, 2025 09:15	Rajarshi Basu	CPPg++13.3.0	Error
Dec 19, 2025 09:14	Rajarshi Basu	CPPg++13.3.0	Error
Dec 19, 2025 09:14	Rajarshi Basu	CPPg++13.3.0	Success	13,495
Dec 19, 2025 09:14	Rajarshi Basu	CPPg++13.3.0	Success	7,860
Dec 19, 2025 09:13	Rajarshi Basu	CPPg++13.3.0	Success	7,665+13.81 RP
Dec 19, 2025 09:11	Rajarshi Basu	CPPg++13.3.0	Success	7,954
Dec 19, 2025 09:05	Rajarshi Basu	CPPg++13.3.0	Success	7,767
Dec 19, 2025 08:53	Rajarshi Basu	CPPg++13.3.0	Success	7,747+4.48 RP
Dec 19, 2025 08:51	Rajarshi Basu	CPPg++13.3.0	Success	7,774+1.65 RP
Dec 19, 2025 08:49	Rajarshi Basu	CPPg++13.3.0	Success	7,784+26.82 RP
Dec 19, 2025 08:46	Rajarshi Basu	CPPg++13.3.0	Success	8,008
Dec 19, 2025 08:43	Rajarshi Basu	CPPg++13.3.0	Success	8,002
Dec 19, 2025 08:43	Rajarshi Basu	CPPg++13.3.0	Success	8,003
Dec 19, 2025 08:43	Rajarshi Basu	CPPg++13.3.0	Success	8,029
Dec 19, 2025 08:42	Rajarshi Basu	CPPg++13.3.0	Success	8,054
Dec 19, 2025 08:42	Rajarshi Basu	CPPg++13.3.0	Success	8,022
Dec 19, 2025 08:41	Rajarshi Basu	CPPg++13.3.0	Success	8,988
Dec 19, 2025 08:41	Rajarshi Basu	CPPg++13.3.0	Success	9,634
Dec 19, 2025 08:40	Rajarshi Basu	CPPg++13.3.0	Success	8,812
Dec 19, 2025 08:40	Rajarshi Basu	CPPg++13.3.0	Success	8,678
Dec 19, 2025 08:40	Rajarshi Basu	CPPg++13.3.0	Success	8,953
Dec 19, 2025 08:40	Rajarshi Basu	CPPg++13.3.0	Success	9,025
Dec 19, 2025 08:39	Rajarshi Basu	CPPg++13.3.0	Success	9,616
Dec 19, 2025 08:39	Rajarshi Basu	CPPg++13.3.0	Success	10,150
Dec 19, 2025 08:25	Rajarshi Basu	CPPg++13.3.0	Error
Dec 19, 2025 08:23	Rajarshi Basu	CPPg++13.3.0	Error
Dec 19, 2025 08:22	Rajarshi Basu	CPPg++13.3.0	Error
Dec 19, 2025 08:21	Rajarshi Basu	CPPg++13.3.0	Error

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