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 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
Jan 1, 2026 11:26	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 10:48	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 07:44	Josu San Martin	RUSTrust-1.92.0	Error
Jan 1, 2026 07:10	Josu San Martin	RUSTrust-1.92.0	Error
Jan 1, 2026 07:10	Josu San Martin	RUSTrust-1.92.0	Success	22,865
Jan 1, 2026 07:10	Josu San Martin	RUSTrust-1.92.0	Success	40,822
Jan 1, 2026 07:09	Josu San Martin	RUSTrust-1.92.0	Success	21,493+9.33 RP
Jan 1, 2026 03:56	Keefe	CPPg++13.3.0	Success	20,788
Jan 1, 2026 03:55	Keefe	CPPg++13.3.0	Success	20,111
Jan 1, 2026 03:54	Keefe	CPPg++13.3.0	Success	20,653
Jan 1, 2026 03:54	Keefe	CPPg++13.3.0	Error
Jan 1, 2026 03:52	Keefe	CPPclang++18.1.3	Success	22,334
Jan 1, 2026 03:46	Keefe	CPPg++13.3.0	Success	19,759+38.37 RP
Jan 1, 2026 03:29	Keefe	CPPg++13.3.0	Success	30,098
Jan 1, 2026 03:25	Keefe	CPPg++13.3.0	Error
Jan 1, 2026 03:21	Keefe	CPPg++13.3.0	Success	31,776
Jan 1, 2026 03:20	Keefe	CPPg++13.3.0	Success	31,041
Jan 1, 2026 01:28	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 01:27	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 01:25	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 01:12	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 01:06	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 01:00	Josu San Martin	RUSTrust-1.92.0	Success	24,989
Jan 1, 2026 01:00	Josu San Martin	RUSTrust-1.92.0	Success	29,238
Jan 1, 2026 00:59	Josu San Martin	RUSTrust-1.92.0	Success	25,098
Jan 1, 2026 00:58	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 00:56	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 00:52	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 00:50	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 00:48	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 00:47	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 00:41	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 00:40	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 00:38	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 00:33	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 00:30	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 00:24	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 00:22	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 00:17	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 00:15	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 00:11	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 00:10	zielaj	CPPclang++18.1.3	Error
Jan 1, 2026 00:03	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 23:57	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 23:54	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 23:52	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 23:45	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 23:44	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 23:42	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 23:40	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 23:37	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 23:33	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 23:32	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 23:31	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 23:27	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 23:26	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 23:21	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 22:45	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 22:44	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 22:41	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 22:40	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 22:38	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 22:36	zielaj	CPPclang++18.1.3	Error
Dec 31, 2025 22:35	zielaj	CPPclang++18.1.3	Error

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