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 14, 2025 14:11	Rajarshi Basu	CPPg++13.3.0	Error
Dec 14, 2025 14:10	Rajarshi Basu	CPPg++13.3.0	Error
Dec 14, 2025 14:07	Rajarshi Basu	CPPg++13.3.0	Error
Dec 14, 2025 14:06	Rajarshi Basu	CPPg++13.3.0	Error
Dec 14, 2025 14:05	Rajarshi Basu	CPPg++13.3.0	Success	8,150
Dec 14, 2025 14:03	Rajarshi Basu	CPPg++13.3.0	Success	8,118
Dec 14, 2025 14:03	Rajarshi Basu	CPPg++13.3.0	Success	8,204
Dec 14, 2025 14:03	Rajarshi Basu	CPPg++13.3.0	Success	8,207
Dec 14, 2025 14:03	Rajarshi Basu	CPPg++13.3.0	Error
Dec 14, 2025 14:02	Rajarshi Basu	CPPg++13.3.0	Success	8,352
Dec 14, 2025 14:02	Rajarshi Basu	CPPg++13.3.0	Success	8,751
Dec 14, 2025 14:02	Rajarshi Basu	CPPg++13.3.0	Success	9,090
Dec 14, 2025 14:01	Rajarshi Basu	CPPg++13.3.0	Success	9,339
Dec 14, 2025 13:36	Rajarshi Basu	CPPg++13.3.0	Success	8,041+1.08 RP
Dec 14, 2025 13:33	Rajarshi Basu	CPPg++13.3.0	Error
Dec 14, 2025 13:32	Rajarshi Basu	CPPg++13.3.0	Error
Dec 14, 2025 13:31	Rajarshi Basu	CPPg++13.3.0	Error
Dec 14, 2025 13:31	Rajarshi Basu	CPPg++13.3.0	Error
Dec 14, 2025 13:31	Rajarshi Basu	CPPg++13.3.0	Error
Dec 14, 2025 13:30	Rajarshi Basu	CPPg++13.3.0	Error
Dec 14, 2025 13:23	Rajarshi Basu	CPPg++13.3.0	Error
Dec 14, 2025 13:22	Rajarshi Basu	CPPg++13.3.0	Error
Dec 14, 2025 13:11	Rajarshi Basu	CPPg++13.3.0	Error
Dec 14, 2025 13:10	Rajarshi Basu	CPPg++13.3.0	Error
Dec 14, 2025 13:09	Rajarshi Basu	CPPg++13.3.0	Error
Dec 14, 2025 09:39	Rajarshi Basu	CPPg++13.3.0	Error
Dec 14, 2025 09:30	Rajarshi Basu	CPPg++13.3.0	Error
Dec 14, 2025 09:29	Rajarshi Basu	CPPg++13.3.0	Error
Dec 14, 2025 09:29	Rajarshi Basu	CPPg++13.3.0	Error
Dec 14, 2025 09:28	Rajarshi Basu	CPPg++13.3.0	Error
Dec 14, 2025 09:28	Rajarshi Basu	CPPg++13.3.0	Error
Dec 14, 2025 09:28	Rajarshi Basu	CPPg++13.3.0	Error
Dec 14, 2025 09:28	Rajarshi Basu	CPPg++13.3.0	Error
Dec 14, 2025 09:27	Rajarshi Basu	CPPg++13.3.0	Error
Dec 14, 2025 09:27	Rajarshi Basu	CPPg++13.3.0	Error
Dec 14, 2025 09:19	Rajarshi Basu	CPPg++13.3.0	Error
Dec 14, 2025 09:18	Rajarshi Basu	CPPg++13.3.0	Success	8,128
Dec 14, 2025 08:46	Rajarshi Basu	CPPg++13.3.0	Success	8,205
Dec 14, 2025 08:46	Rajarshi Basu	CPPg++13.3.0	Success	9,677
Dec 14, 2025 08:34	Rajarshi Basu	CPPg++13.3.0	Error
Dec 14, 2025 08:29	Rajarshi Basu	CPPg++13.3.0	Success	9,159
Dec 14, 2025 08:29	Rajarshi Basu	CPPg++13.3.0	Success	9,202
Dec 14, 2025 08:25	Rajarshi Basu	CPPg++13.3.0	Success	8,048+46.94 RP
Dec 14, 2025 08:22	Rajarshi Basu	CPPg++13.3.0	Error
Dec 14, 2025 08:17	Rajarshi Basu	CPPg++13.3.0	Error
Dec 14, 2025 08:14	Rajarshi Basu	CPPg++13.3.0	Error
Dec 14, 2025 08:05	Rajarshi Basu	CPPg++13.3.0	Error
Dec 14, 2025 01:32	Joad Nacer	CPPg++13.3.0	Success	4,645
Dec 13, 2025 18:09	Rajarshi Basu	CPPg++13.3.0	Success	8,364+156.64 RP
Dec 13, 2025 17:43	Rajarshi Basu	CPPg++13.3.0	Error
Dec 13, 2025 17:40	Rajarshi Basu	CPPg++13.3.0	Success	11,478
Dec 13, 2025 17:40	Rajarshi Basu	CPPg++13.3.0	Success	11,524
Dec 13, 2025 17:40	Rajarshi Basu	CPPg++13.3.0	Success	11,472
Dec 13, 2025 17:40	Rajarshi Basu	CPPg++13.3.0	Success	10,071
Dec 13, 2025 17:39	Rajarshi Basu	CPPg++13.3.0	Success	10,027
Dec 13, 2025 17:39	Rajarshi Basu	CPPg++13.3.0	Success	10,244
Dec 13, 2025 17:39	Rajarshi Basu	CPPg++13.3.0	Success	11,062
Dec 13, 2025 17:39	Rajarshi Basu	CPPg++13.3.0	Success	11,028
Dec 13, 2025 17:38	Rajarshi Basu	CPPg++13.3.0	Success	11,076
Dec 13, 2025 17:37	Rajarshi Basu	CPPg++13.3.0	Success	10,058
Dec 13, 2025 17:37	Rajarshi Basu	CPPg++13.3.0	Success	9,986
Dec 13, 2025 17:36	Rajarshi Basu	CPPg++13.3.0	Success	10,016
Dec 13, 2025 17:36	Rajarshi Basu	CPPg++13.3.0	Success	10,107
Dec 13, 2025 17:36	Rajarshi Basu	CPPg++13.3.0	Success	9,968
Dec 13, 2025 17:35	Rajarshi Basu	CPPg++13.3.0	Success	10,000
Dec 13, 2025 17:34	Rajarshi Basu	CPPg++13.3.0	Success	10,170
Dec 13, 2025 17:33	Rajarshi Basu	CPPg++13.3.0	Success	10,046
Dec 13, 2025 17:33	Rajarshi Basu	CPPg++13.3.0	Success	9,925
Dec 13, 2025 17:33	Rajarshi Basu	CPPg++13.3.0	Success	10,035
Dec 13, 2025 17:33	Rajarshi Basu	CPPg++13.3.0	Success	12,360
Dec 13, 2025 17:32	Rajarshi Basu	CPPg++13.3.0	Error
Dec 13, 2025 17:32	Rajarshi Basu	CPPg++13.3.0	Success	9,895
Dec 13, 2025 17:31	Rajarshi Basu	CPPg++13.3.0	Success	10,668
Dec 13, 2025 17:25	Rajarshi Basu	CPPg++13.3.0	Error
Dec 13, 2025 17:21	Rajarshi Basu	CPPg++13.3.0	Error
Dec 13, 2025 17:20	Rajarshi Basu	CPPg++13.3.0	Success	10,004
Dec 13, 2025 17:18	Rajarshi Basu	CPPg++13.3.0	Success	10,076
Dec 13, 2025 16:57	Rajarshi Basu	CPPg++13.3.0	Success	11,297
Dec 13, 2025 16:56	Rajarshi Basu	CPPg++13.3.0	Success	11,352
Dec 13, 2025 16:33	Rajarshi Basu	CPPg++13.3.0	Success	33,882
Dec 13, 2025 16:28	Rajarshi Basu	CPPg++13.3.0	Success	16,690
Dec 13, 2025 16:26	Rajarshi Basu	CPPg++13.3.0	Success	16,222
Dec 13, 2025 16:26	Rajarshi Basu	CPPg++13.3.0	Success	16,438
Dec 13, 2025 16:26	Rajarshi Basu	CPPg++13.3.0	Success	16,560
Dec 13, 2025 16:25	Rajarshi Basu	CPPg++13.3.0	Success	19,667
Dec 13, 2025 16:25	Rajarshi Basu	CPPg++13.3.0	Success	20,931
Dec 13, 2025 16:25	Rajarshi Basu	CPPg++13.3.0	Success	23,103
Dec 13, 2025 16:25	Rajarshi Basu	CPPg++13.3.0	Success	35,339
Dec 13, 2025 16:25	Rajarshi Basu	CPPg++13.3.0	Success	18,116
Dec 13, 2025 16:24	Rajarshi Basu	CPPg++13.3.0	Success	18,610
Dec 13, 2025 16:23	Rajarshi Basu	CPPg++13.3.0	Success	19,009
Dec 13, 2025 16:23	Rajarshi Basu	CPPg++13.3.0	Success	17,167
Dec 13, 2025 16:22	Rajarshi Basu	CPPg++13.3.0	Success	18,544
Dec 13, 2025 16:21	Rajarshi Basu	CPPg++13.3.0	Success	19,172
Dec 13, 2025 16:20	Rajarshi Basu	CPPg++13.3.0	Error
Dec 13, 2025 16:18	Rajarshi Basu	CPPg++13.3.0	Error
Dec 13, 2025 16:16	Rajarshi Basu	CPPg++13.3.0	Error
Dec 13, 2025 16:15	Rajarshi Basu	CPPg++13.3.0	Error
Dec 13, 2025 16:09	Rajarshi Basu	CPPg++13.3.0	Error
Dec 13, 2025 13:27	Rajarshi Basu	CPPg++13.3.0	Error

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