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 20, 2025 14:49	Rajarshi Basu	CPPg++13.3.0	Success	5,124
Dec 20, 2025 14:47	Rajarshi Basu	CPPg++13.3.0	Success	5,140
Dec 20, 2025 14:47	Rajarshi Basu	CPPg++13.3.0	Success	5,119
Dec 20, 2025 14:46	Rajarshi Basu	CPPg++13.3.0	Success	5,182
Dec 20, 2025 14:41	Rajarshi Basu	CPPg++13.3.0	Success	5,086
Dec 20, 2025 14:40	Rajarshi Basu	CPPg++13.3.0	Success	5,094
Dec 20, 2025 14:40	Rajarshi Basu	CPPg++13.3.0	Success	5,069+4.66 RP
Dec 20, 2025 14:39	Rajarshi Basu	CPPg++13.3.0	Success	5,082
Dec 20, 2025 14:37	Rajarshi Basu	CPPg++13.3.0	Success	5,081+5.02 RP
Dec 20, 2025 14:37	Rajarshi Basu	CPPg++13.3.0	Success	6,748
Dec 20, 2025 14:04	Rajarshi Basu	CPPg++13.3.0	Success	6,775
Dec 20, 2025 14:03	Rajarshi Basu	CPPg++13.3.0	Success	5,096
Dec 20, 2025 14:00	Rajarshi Basu	CPPg++13.3.0	Success	5,099
Dec 20, 2025 13:45	Rajarshi Basu	CPPg++13.3.0	Success	5,094+1.16 RP
Dec 20, 2025 13:43	Rajarshi Basu	CPPg++13.3.0	Success	5,097+5.37 RP
Dec 20, 2025 13:22	Rajarshi Basu	CPPg++13.3.0	Error
Dec 20, 2025 13:20	Rajarshi Basu	CPPg++13.3.0	Success	5,439
Dec 20, 2025 13:19	Rajarshi Basu	CPPg++13.3.0	Success	5,449
Dec 20, 2025 13:18	Rajarshi Basu	CPPg++13.3.0	Success	5,455
Dec 20, 2025 13:18	Rajarshi Basu	CPPg++13.3.0	Error
Dec 20, 2025 13:07	Rajarshi Basu	CPPg++13.3.0	Success	5,748
Dec 20, 2025 10:28	Rajarshi Basu	CPPg++13.3.0	Error
Dec 20, 2025 10:24	Rajarshi Basu	CPPg++13.3.0	Error
Dec 20, 2025 10:16	Rajarshi Basu	CPPclang++18.1.3	Success	5,222
Dec 20, 2025 09:44	Rajarshi Basu	CPPg++13.3.0	Success	5,189
Dec 20, 2025 09:38	Rajarshi Basu	CPPg++13.3.0	Success	5,123
Dec 20, 2025 09:34	Rajarshi Basu	CPPg++13.3.0	Success	5,111+2.68 RP
Dec 20, 2025 09:32	Rajarshi Basu	CPPg++13.3.0	Success	5,188
Dec 20, 2025 09:31	Rajarshi Basu	CPPg++13.3.0	Success	5,159
Dec 20, 2025 09:31	Rajarshi Basu	CPPg++13.3.0	Success	5,180
Dec 20, 2025 09:31	Rajarshi Basu	CPPg++13.3.0	Success	5,143
Dec 20, 2025 09:31	Rajarshi Basu	CPPg++13.3.0	Success	5,128
Dec 20, 2025 09:28	Rajarshi Basu	CPPg++13.3.0	Success	5,118+35.24 RP
Dec 20, 2025 09:25	Rajarshi Basu	CPPg++13.3.0	Success	5,212+0.74 RP
Dec 20, 2025 09:24	Rajarshi Basu	CPPg++13.3.0	Error
Dec 20, 2025 09:18	Rajarshi Basu	CPPg++13.3.0	Error
Dec 20, 2025 09:13	Rajarshi Basu	CPPg++13.3.0	Success	5,218
Dec 20, 2025 09:11	Rajarshi Basu	CPPg++13.3.0	Success	5,229
Dec 20, 2025 09:09	Rajarshi Basu	CPPg++13.3.0	Success	5,214+2.20 RP
Dec 20, 2025 09:01	Rajarshi Basu	CPPg++13.3.0	Success	5,220+1.83 RP
Dec 20, 2025 09:00	Rajarshi Basu	CPPg++13.3.0	Success	5,914
Dec 20, 2025 08:59	Rajarshi Basu	CPPg++13.3.0	Success	5,897
Dec 20, 2025 08:57	Rajarshi Basu	CPPg++13.3.0	Success	5,656
Dec 20, 2025 08:50	Rajarshi Basu	CPPg++13.3.0	Success	5,253
Dec 20, 2025 08:50	Rajarshi Basu	CPPg++13.3.0	Success	5,230
Dec 20, 2025 08:50	Rajarshi Basu	CPPg++13.3.0	Success	5,264
Dec 20, 2025 08:49	Rajarshi Basu	CPPg++13.3.0	Success	5,235
Dec 20, 2025 08:49	Rajarshi Basu	CPPg++13.3.0	Success	5,389
Dec 20, 2025 08:49	Rajarshi Basu	CPPg++13.3.0	Success	5,255
Dec 20, 2025 08:49	Rajarshi Basu	CPPg++13.3.0	Error
Dec 20, 2025 08:49	Rajarshi Basu	CPPg++13.3.0	Success	5,232
Dec 20, 2025 08:48	Rajarshi Basu	CPPg++13.3.0	Success	5,403
Dec 20, 2025 08:48	Rajarshi Basu	CPPg++13.3.0	Success	5,239
Dec 20, 2025 08:48	Rajarshi Basu	CPPg++13.3.0	Success	5,273
Dec 20, 2025 08:48	Rajarshi Basu	CPPg++13.3.0	Success	5,314
Dec 20, 2025 08:47	Rajarshi Basu	CPPg++13.3.0	Success	5,256
Dec 20, 2025 08:46	Rajarshi Basu	CPPg++13.3.0	Success	7,405
Dec 20, 2025 08:29	Rajarshi Basu	CPPg++13.3.0	Success	5,225+2.20 RP
Dec 20, 2025 08:27	Rajarshi Basu	CPPg++13.3.0	Success	5,243
Dec 20, 2025 08:27	Rajarshi Basu	CPPg++13.3.0	Success	5,241
Dec 20, 2025 08:26	Rajarshi Basu	CPPg++13.3.0	Success	5,605
Dec 20, 2025 08:23	Rajarshi Basu	CPPg++13.3.0	Success	5,244
Dec 20, 2025 08:23	Rajarshi Basu	CPPg++13.3.0	Success	5,270
Dec 20, 2025 08:23	Rajarshi Basu	CPPg++13.3.0	Success	5,231+22.39 RP
Dec 20, 2025 08:21	Rajarshi Basu	CPPg++13.3.0	Error
Dec 20, 2025 08:21	Rajarshi Basu	CPPg++13.3.0	Error
Dec 20, 2025 08:21	Rajarshi Basu	CPPg++13.3.0	Error
Dec 20, 2025 08:20	Rajarshi Basu	CPPg++13.3.0	Success	5,415
Dec 20, 2025 08:20	Rajarshi Basu	CPPg++13.3.0	Success	5,352
Dec 20, 2025 08:18	Rajarshi Basu	CPPg++13.3.0	Error
Dec 20, 2025 08:17	Rajarshi Basu	CPPclang++18.1.3	Success	5,293+4.63 RP
Dec 20, 2025 07:53	Rajarshi Basu	CPPg++13.3.0	Error
Dec 20, 2025 07:52	Rajarshi Basu	CPPg++13.3.0	Success	5,614
Dec 20, 2025 07:52	Rajarshi Basu	CPPg++13.3.0	Success	5,822
Dec 20, 2025 07:07	Rajarshi Basu	CPPg++13.3.0	Success	5,366
Dec 20, 2025 07:07	Rajarshi Basu	CPPclang++18.1.3	Success	5,306+3.90 RP
Dec 20, 2025 07:06	Rajarshi Basu	CPPclang++18.1.3	Error
Dec 20, 2025 07:06	Rajarshi Basu	CPPclang++18.1.3	Error
Dec 20, 2025 07:04	Rajarshi Basu	CPPclang++18.1.3	Success	5,444
Dec 20, 2025 07:03	Rajarshi Basu	CPPclang++18.1.3	Success	5,346
Dec 20, 2025 07:01	Rajarshi Basu	CPPclang++18.1.3	Success	5,371
Dec 20, 2025 06:59	Rajarshi Basu	CPPclang++18.1.3	Success	5,376
Dec 20, 2025 06:58	Rajarshi Basu	CPPclang++18.1.3	Error
Dec 20, 2025 06:57	Rajarshi Basu	CPPclang++18.1.3	Error
Dec 20, 2025 06:57	Rajarshi Basu	CPPclang++18.1.3	Success	5,317+49.93 RP
Dec 20, 2025 06:56	Rajarshi Basu	CPPclang++18.1.3	Error
Dec 20, 2025 06:50	Rajarshi Basu	CPPclang++18.1.3	Error
Dec 20, 2025 06:29	Rajarshi Basu	CPPclang++18.1.3	Error
Dec 20, 2025 06:27	Rajarshi Basu	CPPclang++18.1.3	Error
Dec 20, 2025 06:25	Rajarshi Basu	CPPclang++18.1.3	Error
Dec 20, 2025 06:22	Rajarshi Basu	CPPclang++18.1.3	Error
Dec 20, 2025 06:20	Rajarshi Basu	CPPclang++18.1.3	Error
Dec 20, 2025 06:17	Rajarshi Basu	CPPclang++18.1.3	Error
Dec 20, 2025 06:16	Rajarshi Basu	CPPclang++18.1.3	Error
Dec 20, 2025 06:14	Rajarshi Basu	CPPclang++18.1.3	Error
Dec 20, 2025 06:08	Rajarshi Basu	CPPclang++18.1.3	Error
Dec 20, 2025 06:05	Rajarshi Basu	CPPclang++18.1.3	Success	5,462+6.35 RP
Dec 20, 2025 06:02	Rajarshi Basu	CPPclang++18.1.3	Error
Dec 20, 2025 06:00	Rajarshi Basu	CPPclang++18.1.3	Success	5,670
Dec 20, 2025 05:52	Rajarshi Basu	CPPclang++18.1.3	Success	5,505

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