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
Jan 2, 2026 04:34	Josu San Martin	RUSTrust-1.92.0	Error
Jan 2, 2026 04:31	Josu San Martin	RUSTrust-1.92.0	Error
Jan 2, 2026 04:26	Josu San Martin	RUSTrust-1.92.0	Error
Jan 2, 2026 04:25	Josu San Martin	RUSTrust-1.92.0	Error
Jan 2, 2026 00:05	zielaj	CPPclang++18.1.3	Success	3,645
Jan 2, 2026 00:05	zielaj	CPPclang++18.1.3	Success	3,595
Jan 1, 2026 23:05	zielaj	CPPclang++18.1.3	Success	3,557
Jan 1, 2026 23:04	zielaj	CPPclang++18.1.3	Success	3,552
Jan 1, 2026 23:03	zielaj	CPPclang++18.1.3	Success	4,115
Jan 1, 2026 23:01	zielaj	CPPclang++18.1.3	Success	3,734
Jan 1, 2026 23:00	zielaj	CPPclang++18.1.3	Success	4,096
Jan 1, 2026 22:57	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 22:55	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 22:52	zielaj	CPPclang++18.1.3	Success	3,504
Jan 1, 2026 22:47	zielaj	CPPclang++18.1.3	Success	3,505
Jan 1, 2026 22:42	zielaj	CPPclang++18.1.3	Success	3,514
Jan 1, 2026 21:09	zielaj	CPPclang++18.1.3	Success	3,510
Jan 1, 2026 21:08	zielaj	CPPclang++18.1.3	Success	3,579
Jan 1, 2026 21:06	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 20:54	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 20:37	zielaj	CPPclang++18.1.3	Success	3,606
Jan 1, 2026 20:21	zielaj	CPPclang++18.1.3	Success	3,532
Jan 1, 2026 20:20	zielaj	CPPclang++18.1.3	Success	3,539
Jan 1, 2026 20:18	zielaj	CPPclang++18.1.3	Success	3,613
Jan 1, 2026 19:55	zielaj	CPPclang++18.1.3	Success	3,702
Jan 1, 2026 19:47	zielaj	CPPclang++18.1.3	Success	3,552
Jan 1, 2026 19:45	zielaj	CPPclang++18.1.3	Success	3,506
Jan 1, 2026 19:21	zielaj	CPPclang++18.1.3	Success	3,506
Jan 1, 2026 19:19	zielaj	CPPclang++18.1.3	Success	3,579
Jan 1, 2026 19:18	zielaj	CPPclang++18.1.3	Success	3,629
Jan 1, 2026 19:17	zielaj	CPPclang++18.1.3	Success	3,724
Jan 1, 2026 19:05	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 18:08	zielaj	CPPclang++18.1.3	Success	4,388
Jan 1, 2026 18:06	zielaj	CPPclang++18.1.3	Success	3,552
Jan 1, 2026 18:05	zielaj	CPPclang++18.1.3	Success	3,525
Jan 1, 2026 18:04	zielaj	CPPclang++18.1.3	Success	3,490+5.74 RP
Jan 1, 2026 18:03	zielaj	CPPclang++18.1.3	Success	3,617
Jan 1, 2026 18:03	zielaj	CPPclang++18.1.3	Success	3,540
Jan 1, 2026 18:02	zielaj	CPPclang++18.1.3	Success	3,664
Jan 1, 2026 17:52	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 17:50	zielaj	CPPclang++18.1.3	Success	3,574
Jan 1, 2026 17:48	zielaj	CPPclang++18.1.3	Success	3,659
Jan 1, 2026 17:43	zielaj	CPPclang++18.1.3	Success	3,547
Jan 1, 2026 17:42	zielaj	CPPclang++18.1.3	Success	3,545
Jan 1, 2026 17:40	zielaj	CPPclang++18.1.3	Success	3,497+17.88 RP
Jan 1, 2026 17:37	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 17:34	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 17:31	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 17:23	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 17:22	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 17:18	zielaj	CPPclang++18.1.3	Success	3,587
Jan 1, 2026 17:16	zielaj	CPPclang++18.1.3	Success	3,642
Jan 1, 2026 17:16	zielaj	CPPclang++18.1.3	Success	3,627
Jan 1, 2026 17:07	zielaj	CPPclang++18.1.3	Success	3,560
Jan 1, 2026 17:04	zielaj	CPPclang++18.1.3	Success	3,698
Jan 1, 2026 16:58	zielaj	CPPclang++18.1.3	Success	3,519+16.06 RP
Jan 1, 2026 16:57	zielaj	CPPclang++18.1.3	Success	3,717
Jan 1, 2026 16:53	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 16:44	zielaj	CPPclang++18.1.3	Success	3,669
Jan 1, 2026 16:42	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 16:41	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 16:40	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 16:35	zielaj	CPPclang++18.1.3	Success	3,539+11.93 RP
Jan 1, 2026 16:33	zielaj	CPPclang++18.1.3	Success	3,760
Jan 1, 2026 16:20	zielaj	CPPclang++18.1.3	Success	3,612
Jan 1, 2026 16:18	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 16:17	zielaj	CPPclang++18.1.3	Success	3,736
Jan 1, 2026 16:16	zielaj	CPPclang++18.1.3	Success	3,595
Jan 1, 2026 16:13	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 16:08	zielaj	CPPclang++18.1.3	Success	3,554+23.55 RP
Jan 1, 2026 16:07	zielaj	CPPclang++18.1.3	Success	3,674
Jan 1, 2026 16:04	zielaj	CPPclang++18.1.3	Success	3,636
Jan 1, 2026 16:03	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 15:56	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 15:55	Josu San Martin	RUSTrust-1.92.0	Success	38,666
Jan 1, 2026 15:53	zielaj	CPPclang++18.1.3	Success	3,712
Jan 1, 2026 15:47	zielaj	CPPclang++18.1.3	Success	3,644
Jan 1, 2026 15:43	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 15:31	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 15:27	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 15:25	zielaj	CPPclang++18.1.3	Success	3,584+32.32 RP
Jan 1, 2026 15:13	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 15:11	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 15:10	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 15:08	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 14:58	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 14:49	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 14:47	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 14:46	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 14:35	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 14:34	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 13:23	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 13:21	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 13:19	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 13:17	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 13:15	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 13:14	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 13:12	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 13:07	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 11:30	zielaj	CPPclang++18.1.3	Error

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